зеркало из https://github.com/github/putty.git
6530 строки
178 KiB
C
6530 строки
178 KiB
C
/*
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* Terminal emulator.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <time.h>
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#include <assert.h>
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#include "putty.h"
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#include "terminal.h"
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#define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
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#define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
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#define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
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#define posdiff(p1,p2) ( ((p1).y - (p2).y) * (term->cols+1) + (p1).x - (p2).x )
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/* Product-order comparisons for rectangular block selection. */
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#define posPlt(p1,p2) ( (p1).y <= (p2).y && (p1).x < (p2).x )
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#define posPle(p1,p2) ( (p1).y <= (p2).y && (p1).x <= (p2).x )
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#define incpos(p) ( (p).x == term->cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
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#define decpos(p) ( (p).x == 0 ? ((p).x = term->cols, (p).y--, 1) : ((p).x--, 0) )
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#define VT52_PLUS
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#define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
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#define CL_VT100 0x0002 /* VT100 */
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#define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
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#define CL_VT102 0x0008 /* VT102 */
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#define CL_VT220 0x0010 /* VT220 */
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#define CL_VT320 0x0020 /* VT320 */
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#define CL_VT420 0x0040 /* VT420 */
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#define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
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#define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
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#define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
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#define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
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#define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
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#define TM_VT100 (CL_ANSIMIN|CL_VT100)
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#define TM_VT100AVO (TM_VT100|CL_VT100AVO)
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#define TM_VT102 (TM_VT100AVO|CL_VT102)
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#define TM_VT220 (TM_VT102|CL_VT220)
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#define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
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#define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
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#define TM_PUTTY (0xFFFF)
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#define UPDATE_DELAY ((TICKSPERSEC+49)/50)/* ticks to defer window update */
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#define TBLINK_DELAY ((TICKSPERSEC*9+19)/20)/* ticks between text blinks*/
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#define CBLINK_DELAY (CURSORBLINK) /* ticks between cursor blinks */
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#define VBELL_DELAY (VBELL_TIMEOUT) /* visual bell timeout in ticks */
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#define compatibility(x) \
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if ( ((CL_##x)&term->compatibility_level) == 0 ) { \
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term->termstate=TOPLEVEL; \
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break; \
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}
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#define compatibility2(x,y) \
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if ( ((CL_##x|CL_##y)&term->compatibility_level) == 0 ) { \
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term->termstate=TOPLEVEL; \
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break; \
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}
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#define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 )
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char *EMPTY_WINDOW_TITLE = "";
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const char sco2ansicolour[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
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#define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
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const wchar_t sel_nl[] = SEL_NL;
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/*
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* Fetch the character at a particular position in a line array,
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* for purposes of `wordtype'. The reason this isn't just a simple
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* array reference is that if the character we find is UCSWIDE,
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* then we must look one space further to the left.
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*/
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#define UCSGET(a, x) \
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( (x)>0 && (a)[(x)].chr == UCSWIDE ? (a)[(x)-1].chr : (a)[(x)].chr )
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/*
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* Detect the various aliases of U+0020 SPACE.
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*/
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#define IS_SPACE_CHR(chr) \
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((chr) == 0x20 || (DIRECT_CHAR(chr) && ((chr) & 0xFF) == 0x20))
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/*
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* Spot magic CSETs.
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*/
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#define CSET_OF(chr) (DIRECT_CHAR(chr)||DIRECT_FONT(chr) ? (chr)&CSET_MASK : 0)
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/*
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* Internal prototypes.
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*/
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static void resizeline(Terminal *, termline *, int);
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static termline *lineptr(Terminal *, int, int, int);
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static void unlineptr(termline *);
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static void do_paint(Terminal *, Context, int);
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static void erase_lots(Terminal *, int, int, int);
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static int find_last_nonempty_line(Terminal *, tree234 *);
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static void swap_screen(Terminal *, int, int, int);
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static void update_sbar(Terminal *);
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static void deselect(Terminal *);
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static void term_print_finish(Terminal *);
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static void scroll(Terminal *, int, int, int, int);
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#ifdef OPTIMISE_SCROLL
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static void scroll_display(Terminal *, int, int, int);
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#endif /* OPTIMISE_SCROLL */
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static termline *newline(Terminal *term, int cols, int bce)
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{
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termline *line;
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int j;
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line = snew(termline);
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line->chars = snewn(cols, termchar);
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for (j = 0; j < cols; j++)
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line->chars[j] = (bce ? term->erase_char : term->basic_erase_char);
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line->cols = line->size = cols;
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line->lattr = LATTR_NORM;
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line->temporary = FALSE;
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line->cc_free = 0;
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return line;
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}
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static void freeline(termline *line)
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{
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if (line) {
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sfree(line->chars);
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sfree(line);
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}
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}
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static void unlineptr(termline *line)
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{
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if (line->temporary)
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freeline(line);
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}
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#ifdef TERM_CC_DIAGS
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/*
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* Diagnostic function: verify that a termline has a correct
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* combining character structure.
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*
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* This is a performance-intensive check, so it's no longer enabled
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* by default.
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*/
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static void cc_check(termline *line)
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{
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unsigned char *flags;
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int i, j;
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assert(line->size >= line->cols);
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flags = snewn(line->size, unsigned char);
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for (i = 0; i < line->size; i++)
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flags[i] = (i < line->cols);
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for (i = 0; i < line->cols; i++) {
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j = i;
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while (line->chars[j].cc_next) {
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j += line->chars[j].cc_next;
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assert(j >= line->cols && j < line->size);
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assert(!flags[j]);
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flags[j] = TRUE;
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}
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}
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j = line->cc_free;
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if (j) {
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while (1) {
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assert(j >= line->cols && j < line->size);
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assert(!flags[j]);
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flags[j] = TRUE;
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if (line->chars[j].cc_next)
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j += line->chars[j].cc_next;
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else
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break;
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}
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}
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j = 0;
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for (i = 0; i < line->size; i++)
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j += (flags[i] != 0);
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assert(j == line->size);
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sfree(flags);
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}
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#endif
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/*
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* Add a combining character to a character cell.
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*/
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static void add_cc(termline *line, int col, unsigned long chr)
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{
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int newcc;
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assert(col >= 0 && col < line->cols);
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/*
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* Start by extending the cols array if the free list is empty.
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*/
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if (!line->cc_free) {
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int n = line->size;
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line->size += 16 + (line->size - line->cols) / 2;
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line->chars = sresize(line->chars, line->size, termchar);
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line->cc_free = n;
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while (n < line->size) {
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if (n+1 < line->size)
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line->chars[n].cc_next = 1;
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else
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line->chars[n].cc_next = 0;
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n++;
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}
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}
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/*
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* Now walk the cc list of the cell in question.
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*/
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while (line->chars[col].cc_next)
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col += line->chars[col].cc_next;
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/*
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* `col' now points at the last cc currently in this cell; so
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* we simply add another one.
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*/
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newcc = line->cc_free;
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if (line->chars[newcc].cc_next)
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line->cc_free = newcc + line->chars[newcc].cc_next;
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else
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line->cc_free = 0;
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line->chars[newcc].cc_next = 0;
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line->chars[newcc].chr = chr;
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line->chars[col].cc_next = newcc - col;
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#ifdef TERM_CC_DIAGS
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cc_check(line);
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#endif
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}
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/*
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* Clear the combining character list in a character cell.
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*/
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static void clear_cc(termline *line, int col)
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{
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int oldfree, origcol = col;
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assert(col >= 0 && col < line->cols);
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if (!line->chars[col].cc_next)
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return; /* nothing needs doing */
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oldfree = line->cc_free;
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line->cc_free = col + line->chars[col].cc_next;
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while (line->chars[col].cc_next)
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col += line->chars[col].cc_next;
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if (oldfree)
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line->chars[col].cc_next = oldfree - col;
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else
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line->chars[col].cc_next = 0;
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line->chars[origcol].cc_next = 0;
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#ifdef TERM_CC_DIAGS
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cc_check(line);
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#endif
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}
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/*
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* Compare two character cells for equality. Special case required
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* in do_paint() where we override what we expect the chr and attr
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* fields to be.
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*/
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static int termchars_equal_override(termchar *a, termchar *b,
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unsigned long bchr, unsigned long battr)
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{
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/* FULL-TERMCHAR */
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if (a->chr != bchr)
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return FALSE;
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if ((a->attr &~ DATTR_MASK) != (battr &~ DATTR_MASK))
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return FALSE;
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while (a->cc_next || b->cc_next) {
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if (!a->cc_next || !b->cc_next)
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return FALSE; /* one cc-list ends, other does not */
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a += a->cc_next;
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b += b->cc_next;
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if (a->chr != b->chr)
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return FALSE;
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}
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return TRUE;
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}
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static int termchars_equal(termchar *a, termchar *b)
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{
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return termchars_equal_override(a, b, b->chr, b->attr);
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}
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/*
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* Copy a character cell. (Requires a pointer to the destination
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* termline, so as to access its free list.)
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*/
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static void copy_termchar(termline *destline, int x, termchar *src)
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{
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clear_cc(destline, x);
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destline->chars[x] = *src; /* copy everything except cc-list */
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destline->chars[x].cc_next = 0; /* and make sure this is zero */
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while (src->cc_next) {
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src += src->cc_next;
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add_cc(destline, x, src->chr);
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}
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#ifdef TERM_CC_DIAGS
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cc_check(destline);
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#endif
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}
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/*
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* Move a character cell within its termline.
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*/
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static void move_termchar(termline *line, termchar *dest, termchar *src)
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{
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/* First clear the cc list from the original char, just in case. */
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clear_cc(line, dest - line->chars);
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/* Move the character cell and adjust its cc_next. */
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*dest = *src; /* copy everything except cc-list */
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if (src->cc_next)
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dest->cc_next = src->cc_next - (dest-src);
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/* Ensure the original cell doesn't have a cc list. */
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src->cc_next = 0;
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#ifdef TERM_CC_DIAGS
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cc_check(line);
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#endif
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}
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/*
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* Compress and decompress a termline into an RLE-based format for
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* storing in scrollback. (Since scrollback almost never needs to
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* be modified and exists in huge quantities, this is a sensible
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* tradeoff, particularly since it allows us to continue adding
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* features to the main termchar structure without proportionally
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* bloating the terminal emulator's memory footprint unless those
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* features are in constant use.)
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*/
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struct buf {
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unsigned char *data;
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int len, size;
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};
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static void add(struct buf *b, unsigned char c)
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{
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if (b->len >= b->size) {
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b->size = (b->len * 3 / 2) + 512;
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b->data = sresize(b->data, b->size, unsigned char);
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}
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b->data[b->len++] = c;
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}
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static int get(struct buf *b)
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{
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return b->data[b->len++];
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}
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static void makerle(struct buf *b, termline *ldata,
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void (*makeliteral)(struct buf *b, termchar *c,
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unsigned long *state))
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{
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int hdrpos, hdrsize, n, prevlen, prevpos, thislen, thispos, prev2;
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termchar *c = ldata->chars;
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unsigned long state = 0, oldstate;
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n = ldata->cols;
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hdrpos = b->len;
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hdrsize = 0;
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add(b, 0);
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prevlen = prevpos = 0;
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prev2 = FALSE;
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while (n-- > 0) {
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thispos = b->len;
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makeliteral(b, c++, &state);
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thislen = b->len - thispos;
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if (thislen == prevlen &&
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!memcmp(b->data + prevpos, b->data + thispos, thislen)) {
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/*
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* This literal precisely matches the previous one.
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* Turn it into a run if it's worthwhile.
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*
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* With one-byte literals, it costs us two bytes to
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* encode a run, plus another byte to write the header
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* to resume normal output; so a three-element run is
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* neutral, and anything beyond that is unconditionally
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* worthwhile. With two-byte literals or more, even a
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* 2-run is a win.
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*/
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if (thislen > 1 || prev2) {
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int runpos, runlen;
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/*
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* It's worth encoding a run. Start at prevpos,
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* unless hdrsize==0 in which case we can back up
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* another one and start by overwriting hdrpos.
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*/
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hdrsize--; /* remove the literal at prevpos */
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if (prev2) {
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assert(hdrsize > 0);
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hdrsize--;
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prevpos -= prevlen;/* and possibly another one */
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}
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if (hdrsize == 0) {
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assert(prevpos == hdrpos + 1);
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runpos = hdrpos;
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b->len = prevpos+prevlen;
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} else {
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memmove(b->data + prevpos+1, b->data + prevpos, prevlen);
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runpos = prevpos;
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b->len = prevpos+prevlen+1;
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/*
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* Terminate the previous run of ordinary
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* literals.
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*/
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assert(hdrsize >= 1 && hdrsize <= 128);
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b->data[hdrpos] = hdrsize - 1;
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}
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runlen = prev2 ? 3 : 2;
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while (n > 0 && runlen < 129) {
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int tmppos, tmplen;
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tmppos = b->len;
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oldstate = state;
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makeliteral(b, c, &state);
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tmplen = b->len - tmppos;
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b->len = tmppos;
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if (tmplen != thislen ||
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memcmp(b->data + runpos+1, b->data + tmppos, tmplen)) {
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state = oldstate;
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break; /* run over */
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}
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n--, c++, runlen++;
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}
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assert(runlen >= 2 && runlen <= 129);
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b->data[runpos] = runlen + 0x80 - 2;
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hdrpos = b->len;
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hdrsize = 0;
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add(b, 0);
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/* And ensure this run doesn't interfere with the next. */
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prevlen = prevpos = 0;
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prev2 = FALSE;
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continue;
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} else {
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/*
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* Just flag that the previous two literals were
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* identical, in case we find a third identical one
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* we want to turn into a run.
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*/
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prev2 = TRUE;
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prevlen = thislen;
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prevpos = thispos;
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}
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} else {
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prev2 = FALSE;
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prevlen = thislen;
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prevpos = thispos;
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}
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/*
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* This character isn't (yet) part of a run. Add it to
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* hdrsize.
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*/
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hdrsize++;
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if (hdrsize == 128) {
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b->data[hdrpos] = hdrsize - 1;
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hdrpos = b->len;
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hdrsize = 0;
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add(b, 0);
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prevlen = prevpos = 0;
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prev2 = FALSE;
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}
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}
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/*
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* Clean up.
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*/
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if (hdrsize > 0) {
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assert(hdrsize <= 128);
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b->data[hdrpos] = hdrsize - 1;
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} else {
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b->len = hdrpos;
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}
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}
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static void makeliteral_chr(struct buf *b, termchar *c, unsigned long *state)
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{
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/*
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* My encoding for characters is UTF-8-like, in that it stores
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* 7-bit ASCII in one byte and uses high-bit-set bytes as
|
|
* introducers to indicate a longer sequence. However, it's
|
|
* unlike UTF-8 in that it doesn't need to be able to
|
|
* resynchronise, and therefore I don't want to waste two bits
|
|
* per byte on having recognisable continuation characters.
|
|
* Also I don't want to rule out the possibility that I may one
|
|
* day use values 0x80000000-0xFFFFFFFF for interesting
|
|
* purposes, so unlike UTF-8 I need a full 32-bit range.
|
|
* Accordingly, here is my encoding:
|
|
*
|
|
* 00000000-0000007F: 0xxxxxxx (but see below)
|
|
* 00000080-00003FFF: 10xxxxxx xxxxxxxx
|
|
* 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
|
|
* 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
|
|
* 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
|
|
*
|
|
* (`Z' is like `x' but is always going to be zero since the
|
|
* values I'm encoding don't go above 2^32. In principle the
|
|
* five-byte form of the encoding could extend to 2^35, and
|
|
* there could be six-, seven-, eight- and nine-byte forms as
|
|
* well to allow up to 64-bit values to be encoded. But that's
|
|
* completely unnecessary for these purposes!)
|
|
*
|
|
* The encoding as written above would be very simple, except
|
|
* that 7-bit ASCII can occur in several different ways in the
|
|
* terminal data; sometimes it crops up in the D800 page
|
|
* (CSET_ASCII) but at other times it's in the 0000 page (real
|
|
* Unicode). Therefore, this encoding is actually _stateful_:
|
|
* the one-byte encoding of 00-7F actually indicates `reuse the
|
|
* upper three bytes of the last character', and to encode an
|
|
* absolute value of 00-7F you need to use the two-byte form
|
|
* instead.
|
|
*/
|
|
if ((c->chr & ~0x7F) == *state) {
|
|
add(b, (unsigned char)(c->chr & 0x7F));
|
|
} else if (c->chr < 0x4000) {
|
|
add(b, (unsigned char)(((c->chr >> 8) & 0x3F) | 0x80));
|
|
add(b, (unsigned char)(c->chr & 0xFF));
|
|
} else if (c->chr < 0x200000) {
|
|
add(b, (unsigned char)(((c->chr >> 16) & 0x1F) | 0xC0));
|
|
add(b, (unsigned char)((c->chr >> 8) & 0xFF));
|
|
add(b, (unsigned char)(c->chr & 0xFF));
|
|
} else if (c->chr < 0x10000000) {
|
|
add(b, (unsigned char)(((c->chr >> 24) & 0x0F) | 0xE0));
|
|
add(b, (unsigned char)((c->chr >> 16) & 0xFF));
|
|
add(b, (unsigned char)((c->chr >> 8) & 0xFF));
|
|
add(b, (unsigned char)(c->chr & 0xFF));
|
|
} else {
|
|
add(b, 0xF0);
|
|
add(b, (unsigned char)((c->chr >> 24) & 0xFF));
|
|
add(b, (unsigned char)((c->chr >> 16) & 0xFF));
|
|
add(b, (unsigned char)((c->chr >> 8) & 0xFF));
|
|
add(b, (unsigned char)(c->chr & 0xFF));
|
|
}
|
|
*state = c->chr & ~0xFF;
|
|
}
|
|
static void makeliteral_attr(struct buf *b, termchar *c, unsigned long *state)
|
|
{
|
|
/*
|
|
* My encoding for attributes is 16-bit-granular and assumes
|
|
* that the top bit of the word is never required. I either
|
|
* store a two-byte value with the top bit clear (indicating
|
|
* just that value), or a four-byte value with the top bit set
|
|
* (indicating the same value with its top bit clear).
|
|
*
|
|
* However, first I permute the bits of the attribute value, so
|
|
* that the eight bits of colour (four in each of fg and bg)
|
|
* which are never non-zero unless xterm 256-colour mode is in
|
|
* use are placed higher up the word than everything else. This
|
|
* ensures that attribute values remain 16-bit _unless_ the
|
|
* user uses extended colour.
|
|
*/
|
|
unsigned attr, colourbits;
|
|
|
|
attr = c->attr;
|
|
|
|
assert(ATTR_BGSHIFT > ATTR_FGSHIFT);
|
|
|
|
colourbits = (attr >> (ATTR_BGSHIFT + 4)) & 0xF;
|
|
colourbits <<= 4;
|
|
colourbits |= (attr >> (ATTR_FGSHIFT + 4)) & 0xF;
|
|
|
|
attr = (((attr >> (ATTR_BGSHIFT + 8)) << (ATTR_BGSHIFT + 4)) |
|
|
(attr & ((1 << (ATTR_BGSHIFT + 4))-1)));
|
|
attr = (((attr >> (ATTR_FGSHIFT + 8)) << (ATTR_FGSHIFT + 4)) |
|
|
(attr & ((1 << (ATTR_FGSHIFT + 4))-1)));
|
|
|
|
attr |= (colourbits << (32-9));
|
|
|
|
if (attr < 0x8000) {
|
|
add(b, (unsigned char)((attr >> 8) & 0xFF));
|
|
add(b, (unsigned char)(attr & 0xFF));
|
|
} else {
|
|
add(b, (unsigned char)(((attr >> 24) & 0x7F) | 0x80));
|
|
add(b, (unsigned char)((attr >> 16) & 0xFF));
|
|
add(b, (unsigned char)((attr >> 8) & 0xFF));
|
|
add(b, (unsigned char)(attr & 0xFF));
|
|
}
|
|
}
|
|
static void makeliteral_cc(struct buf *b, termchar *c, unsigned long *state)
|
|
{
|
|
/*
|
|
* For combining characters, I just encode a bunch of ordinary
|
|
* chars using makeliteral_chr, and terminate with a \0
|
|
* character (which I know won't come up as a combining char
|
|
* itself).
|
|
*
|
|
* I don't use the stateful encoding in makeliteral_chr.
|
|
*/
|
|
unsigned long zstate;
|
|
termchar z;
|
|
|
|
while (c->cc_next) {
|
|
c += c->cc_next;
|
|
|
|
assert(c->chr != 0);
|
|
|
|
zstate = 0;
|
|
makeliteral_chr(b, c, &zstate);
|
|
}
|
|
|
|
z.chr = 0;
|
|
zstate = 0;
|
|
makeliteral_chr(b, &z, &zstate);
|
|
}
|
|
|
|
static termline *decompressline(unsigned char *data, int *bytes_used);
|
|
|
|
static unsigned char *compressline(termline *ldata)
|
|
{
|
|
struct buf buffer = { NULL, 0, 0 }, *b = &buffer;
|
|
|
|
/*
|
|
* First, store the column count, 7 bits at a time, least
|
|
* significant `digit' first, with the high bit set on all but
|
|
* the last.
|
|
*/
|
|
{
|
|
int n = ldata->cols;
|
|
while (n >= 128) {
|
|
add(b, (unsigned char)((n & 0x7F) | 0x80));
|
|
n >>= 7;
|
|
}
|
|
add(b, (unsigned char)(n));
|
|
}
|
|
|
|
/*
|
|
* Next store the lattrs; same principle.
|
|
*/
|
|
{
|
|
int n = ldata->lattr;
|
|
while (n >= 128) {
|
|
add(b, (unsigned char)((n & 0x7F) | 0x80));
|
|
n >>= 7;
|
|
}
|
|
add(b, (unsigned char)(n));
|
|
}
|
|
|
|
/*
|
|
* Now we store a sequence of separate run-length encoded
|
|
* fragments, each containing exactly as many symbols as there
|
|
* are columns in the ldata.
|
|
*
|
|
* All of these have a common basic format:
|
|
*
|
|
* - a byte 00-7F indicates that X+1 literals follow it
|
|
* - a byte 80-FF indicates that a single literal follows it
|
|
* and expects to be repeated (X-0x80)+2 times.
|
|
*
|
|
* The format of the `literals' varies between the fragments.
|
|
*/
|
|
makerle(b, ldata, makeliteral_chr);
|
|
makerle(b, ldata, makeliteral_attr);
|
|
makerle(b, ldata, makeliteral_cc);
|
|
|
|
/*
|
|
* Diagnostics: ensure that the compressed data really does
|
|
* decompress to the right thing.
|
|
*
|
|
* This is a bit performance-heavy for production code.
|
|
*/
|
|
#ifdef TERM_CC_DIAGS
|
|
#ifndef CHECK_SB_COMPRESSION
|
|
{
|
|
int dused;
|
|
termline *dcl;
|
|
int i;
|
|
|
|
#ifdef DIAGNOSTIC_SB_COMPRESSION
|
|
for (i = 0; i < b->len; i++) {
|
|
printf(" %02x ", b->data[i]);
|
|
}
|
|
printf("\n");
|
|
#endif
|
|
|
|
dcl = decompressline(b->data, &dused);
|
|
assert(b->len == dused);
|
|
assert(ldata->cols == dcl->cols);
|
|
assert(ldata->lattr == dcl->lattr);
|
|
for (i = 0; i < ldata->cols; i++)
|
|
assert(termchars_equal(&ldata->chars[i], &dcl->chars[i]));
|
|
|
|
#ifdef DIAGNOSTIC_SB_COMPRESSION
|
|
printf("%d cols (%d bytes) -> %d bytes (factor of %g)\n",
|
|
ldata->cols, 4 * ldata->cols, dused,
|
|
(double)dused / (4 * ldata->cols));
|
|
#endif
|
|
|
|
freeline(dcl);
|
|
}
|
|
#endif
|
|
#endif /* TERM_CC_DIAGS */
|
|
|
|
/*
|
|
* Trim the allocated memory so we don't waste any, and return.
|
|
*/
|
|
return sresize(b->data, b->len, unsigned char);
|
|
}
|
|
|
|
static void readrle(struct buf *b, termline *ldata,
|
|
void (*readliteral)(struct buf *b, termchar *c,
|
|
termline *ldata, unsigned long *state))
|
|
{
|
|
int n = 0;
|
|
unsigned long state = 0;
|
|
|
|
while (n < ldata->cols) {
|
|
int hdr = get(b);
|
|
|
|
if (hdr >= 0x80) {
|
|
/* A run. */
|
|
|
|
int pos = b->len, count = hdr + 2 - 0x80;
|
|
while (count--) {
|
|
assert(n < ldata->cols);
|
|
b->len = pos;
|
|
readliteral(b, ldata->chars + n, ldata, &state);
|
|
n++;
|
|
}
|
|
} else {
|
|
/* Just a sequence of consecutive literals. */
|
|
|
|
int count = hdr + 1;
|
|
while (count--) {
|
|
assert(n < ldata->cols);
|
|
readliteral(b, ldata->chars + n, ldata, &state);
|
|
n++;
|
|
}
|
|
}
|
|
}
|
|
|
|
assert(n == ldata->cols);
|
|
}
|
|
static void readliteral_chr(struct buf *b, termchar *c, termline *ldata,
|
|
unsigned long *state)
|
|
{
|
|
int byte;
|
|
|
|
/*
|
|
* 00000000-0000007F: 0xxxxxxx
|
|
* 00000080-00003FFF: 10xxxxxx xxxxxxxx
|
|
* 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
|
|
* 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
|
|
* 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
|
|
*/
|
|
|
|
byte = get(b);
|
|
if (byte < 0x80) {
|
|
c->chr = byte | *state;
|
|
} else if (byte < 0xC0) {
|
|
c->chr = (byte &~ 0xC0) << 8;
|
|
c->chr |= get(b);
|
|
} else if (byte < 0xE0) {
|
|
c->chr = (byte &~ 0xE0) << 16;
|
|
c->chr |= get(b) << 8;
|
|
c->chr |= get(b);
|
|
} else if (byte < 0xF0) {
|
|
c->chr = (byte &~ 0xF0) << 24;
|
|
c->chr |= get(b) << 16;
|
|
c->chr |= get(b) << 8;
|
|
c->chr |= get(b);
|
|
} else {
|
|
assert(byte == 0xF0);
|
|
c->chr = get(b) << 24;
|
|
c->chr |= get(b) << 16;
|
|
c->chr |= get(b) << 8;
|
|
c->chr |= get(b);
|
|
}
|
|
*state = c->chr & ~0xFF;
|
|
}
|
|
static void readliteral_attr(struct buf *b, termchar *c, termline *ldata,
|
|
unsigned long *state)
|
|
{
|
|
unsigned val, attr, colourbits;
|
|
|
|
val = get(b) << 8;
|
|
val |= get(b);
|
|
|
|
if (val >= 0x8000) {
|
|
val &= ~0x8000;
|
|
val <<= 16;
|
|
val |= get(b) << 8;
|
|
val |= get(b);
|
|
}
|
|
|
|
colourbits = (val >> (32-9)) & 0xFF;
|
|
attr = (val & ((1<<(32-9))-1));
|
|
|
|
attr = (((attr >> (ATTR_FGSHIFT + 4)) << (ATTR_FGSHIFT + 8)) |
|
|
(attr & ((1 << (ATTR_FGSHIFT + 4))-1)));
|
|
attr = (((attr >> (ATTR_BGSHIFT + 4)) << (ATTR_BGSHIFT + 8)) |
|
|
(attr & ((1 << (ATTR_BGSHIFT + 4))-1)));
|
|
|
|
attr |= (colourbits >> 4) << (ATTR_BGSHIFT + 4);
|
|
attr |= (colourbits & 0xF) << (ATTR_FGSHIFT + 4);
|
|
|
|
c->attr = attr;
|
|
}
|
|
static void readliteral_cc(struct buf *b, termchar *c, termline *ldata,
|
|
unsigned long *state)
|
|
{
|
|
termchar n;
|
|
unsigned long zstate;
|
|
int x = c - ldata->chars;
|
|
|
|
c->cc_next = 0;
|
|
|
|
while (1) {
|
|
zstate = 0;
|
|
readliteral_chr(b, &n, ldata, &zstate);
|
|
if (!n.chr)
|
|
break;
|
|
add_cc(ldata, x, n.chr);
|
|
}
|
|
}
|
|
|
|
static termline *decompressline(unsigned char *data, int *bytes_used)
|
|
{
|
|
int ncols, byte, shift;
|
|
struct buf buffer, *b = &buffer;
|
|
termline *ldata;
|
|
|
|
b->data = data;
|
|
b->len = 0;
|
|
|
|
/*
|
|
* First read in the column count.
|
|
*/
|
|
ncols = shift = 0;
|
|
do {
|
|
byte = get(b);
|
|
ncols |= (byte & 0x7F) << shift;
|
|
shift += 7;
|
|
} while (byte & 0x80);
|
|
|
|
/*
|
|
* Now create the output termline.
|
|
*/
|
|
ldata = snew(termline);
|
|
ldata->chars = snewn(ncols, termchar);
|
|
ldata->cols = ldata->size = ncols;
|
|
ldata->temporary = TRUE;
|
|
ldata->cc_free = 0;
|
|
|
|
/*
|
|
* We must set all the cc pointers in ldata->chars to 0 right
|
|
* now, so that cc diagnostics that verify the integrity of the
|
|
* whole line will make sense while we're in the middle of
|
|
* building it up.
|
|
*/
|
|
{
|
|
int i;
|
|
for (i = 0; i < ldata->cols; i++)
|
|
ldata->chars[i].cc_next = 0;
|
|
}
|
|
|
|
/*
|
|
* Now read in the lattr.
|
|
*/
|
|
ldata->lattr = shift = 0;
|
|
do {
|
|
byte = get(b);
|
|
ldata->lattr |= (byte & 0x7F) << shift;
|
|
shift += 7;
|
|
} while (byte & 0x80);
|
|
|
|
/*
|
|
* Now we read in each of the RLE streams in turn.
|
|
*/
|
|
readrle(b, ldata, readliteral_chr);
|
|
readrle(b, ldata, readliteral_attr);
|
|
readrle(b, ldata, readliteral_cc);
|
|
|
|
/* Return the number of bytes read, for diagnostic purposes. */
|
|
if (bytes_used)
|
|
*bytes_used = b->len;
|
|
|
|
return ldata;
|
|
}
|
|
|
|
/*
|
|
* Resize a line to make it `cols' columns wide.
|
|
*/
|
|
static void resizeline(Terminal *term, termline *line, int cols)
|
|
{
|
|
int i, oldcols;
|
|
|
|
if (line->cols != cols) {
|
|
|
|
oldcols = line->cols;
|
|
|
|
/*
|
|
* This line is the wrong length, which probably means it
|
|
* hasn't been accessed since a resize. Resize it now.
|
|
*
|
|
* First, go through all the characters that will be thrown
|
|
* out in the resize (if we're shrinking the line) and
|
|
* return their cc lists to the cc free list.
|
|
*/
|
|
for (i = cols; i < oldcols; i++)
|
|
clear_cc(line, i);
|
|
|
|
/*
|
|
* If we're shrinking the line, we now bodily move the
|
|
* entire cc section from where it started to where it now
|
|
* needs to be. (We have to do this before the resize, so
|
|
* that the data we're copying is still there. However, if
|
|
* we're expanding, we have to wait until _after_ the
|
|
* resize so that the space we're copying into is there.)
|
|
*/
|
|
if (cols < oldcols)
|
|
memmove(line->chars + cols, line->chars + oldcols,
|
|
(line->size - line->cols) * TSIZE);
|
|
|
|
/*
|
|
* Now do the actual resize, leaving the _same_ amount of
|
|
* cc space as there was to begin with.
|
|
*/
|
|
line->size += cols - oldcols;
|
|
line->chars = sresize(line->chars, line->size, TTYPE);
|
|
line->cols = cols;
|
|
|
|
/*
|
|
* If we're expanding the line, _now_ we move the cc
|
|
* section.
|
|
*/
|
|
if (cols > oldcols)
|
|
memmove(line->chars + cols, line->chars + oldcols,
|
|
(line->size - line->cols) * TSIZE);
|
|
|
|
/*
|
|
* Go through what's left of the original line, and adjust
|
|
* the first cc_next pointer in each list. (All the
|
|
* subsequent ones are still valid because they are
|
|
* relative offsets within the cc block.) Also do the same
|
|
* to the head of the cc_free list.
|
|
*/
|
|
for (i = 0; i < oldcols && i < cols; i++)
|
|
if (line->chars[i].cc_next)
|
|
line->chars[i].cc_next += cols - oldcols;
|
|
if (line->cc_free)
|
|
line->cc_free += cols - oldcols;
|
|
|
|
/*
|
|
* And finally fill in the new space with erase chars. (We
|
|
* don't have to worry about cc lists here, because we
|
|
* _know_ the erase char doesn't have one.)
|
|
*/
|
|
for (i = oldcols; i < cols; i++)
|
|
line->chars[i] = term->basic_erase_char;
|
|
|
|
#ifdef TERM_CC_DIAGS
|
|
cc_check(line);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Get the number of lines in the scrollback.
|
|
*/
|
|
static int sblines(Terminal *term)
|
|
{
|
|
int sblines = count234(term->scrollback);
|
|
if (term->cfg.erase_to_scrollback &&
|
|
term->alt_which && term->alt_screen) {
|
|
sblines += term->alt_sblines;
|
|
}
|
|
return sblines;
|
|
}
|
|
|
|
/*
|
|
* Retrieve a line of the screen or of the scrollback, according to
|
|
* whether the y coordinate is non-negative or negative
|
|
* (respectively).
|
|
*/
|
|
static termline *lineptr(Terminal *term, int y, int lineno, int screen)
|
|
{
|
|
termline *line;
|
|
tree234 *whichtree;
|
|
int treeindex;
|
|
|
|
if (y >= 0) {
|
|
whichtree = term->screen;
|
|
treeindex = y;
|
|
} else {
|
|
int altlines = 0;
|
|
|
|
assert(!screen);
|
|
|
|
if (term->cfg.erase_to_scrollback &&
|
|
term->alt_which && term->alt_screen) {
|
|
altlines = term->alt_sblines;
|
|
}
|
|
if (y < -altlines) {
|
|
whichtree = term->scrollback;
|
|
treeindex = y + altlines + count234(term->scrollback);
|
|
} else {
|
|
whichtree = term->alt_screen;
|
|
treeindex = y + term->alt_sblines;
|
|
/* treeindex = y + count234(term->alt_screen); */
|
|
}
|
|
}
|
|
if (whichtree == term->scrollback) {
|
|
unsigned char *cline = index234(whichtree, treeindex);
|
|
line = decompressline(cline, NULL);
|
|
} else {
|
|
line = index234(whichtree, treeindex);
|
|
}
|
|
|
|
/* We assume that we don't screw up and retrieve something out of range. */
|
|
if (line == NULL) {
|
|
fatalbox("line==NULL in terminal.c\n"
|
|
"lineno=%d y=%d w=%d h=%d\n"
|
|
"count(scrollback=%p)=%d\n"
|
|
"count(screen=%p)=%d\n"
|
|
"count(alt=%p)=%d alt_sblines=%d\n"
|
|
"whichtree=%p treeindex=%d\n\n"
|
|
"Please contact <putty@projects.tartarus.org> "
|
|
"and pass on the above information.",
|
|
lineno, y, term->cols, term->rows,
|
|
term->scrollback, count234(term->scrollback),
|
|
term->screen, count234(term->screen),
|
|
term->alt_screen, count234(term->alt_screen), term->alt_sblines,
|
|
whichtree, treeindex);
|
|
}
|
|
assert(line != NULL);
|
|
|
|
resizeline(term, line, term->cols);
|
|
/* FIXME: should we sort the compressed scrollback out here? */
|
|
|
|
return line;
|
|
}
|
|
|
|
#define lineptr(x) (lineptr)(term,x,__LINE__,FALSE)
|
|
#define scrlineptr(x) (lineptr)(term,x,__LINE__,TRUE)
|
|
|
|
static void term_schedule_tblink(Terminal *term);
|
|
static void term_schedule_cblink(Terminal *term);
|
|
|
|
static void term_timer(void *ctx, long now)
|
|
{
|
|
Terminal *term = (Terminal *)ctx;
|
|
int update = FALSE;
|
|
|
|
if (term->tblink_pending && now - term->next_tblink >= 0) {
|
|
term->tblinker = !term->tblinker;
|
|
term->tblink_pending = FALSE;
|
|
term_schedule_tblink(term);
|
|
update = TRUE;
|
|
}
|
|
|
|
if (term->cblink_pending && now - term->next_cblink >= 0) {
|
|
term->cblinker = !term->cblinker;
|
|
term->cblink_pending = FALSE;
|
|
term_schedule_cblink(term);
|
|
update = TRUE;
|
|
}
|
|
|
|
if (term->in_vbell && now - term->vbell_end >= 0) {
|
|
term->in_vbell = FALSE;
|
|
update = TRUE;
|
|
}
|
|
|
|
if (update ||
|
|
(term->window_update_pending && now - term->next_update >= 0))
|
|
term_update(term);
|
|
}
|
|
|
|
static void term_schedule_update(Terminal *term)
|
|
{
|
|
if (!term->window_update_pending) {
|
|
term->window_update_pending = TRUE;
|
|
term->next_update = schedule_timer(UPDATE_DELAY, term_timer, term);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Call this whenever the terminal window state changes, to queue
|
|
* an update.
|
|
*/
|
|
static void seen_disp_event(Terminal *term)
|
|
{
|
|
term->seen_disp_event = TRUE; /* for scrollback-reset-on-activity */
|
|
term_schedule_update(term);
|
|
}
|
|
|
|
/*
|
|
* Call when the terminal's blinking-text settings change, or when
|
|
* a text blink has just occurred.
|
|
*/
|
|
static void term_schedule_tblink(Terminal *term)
|
|
{
|
|
if (term->blink_is_real) {
|
|
if (!term->tblink_pending)
|
|
term->next_tblink = schedule_timer(TBLINK_DELAY, term_timer, term);
|
|
term->tblink_pending = TRUE;
|
|
} else {
|
|
term->tblinker = 1; /* reset when not in use */
|
|
term->tblink_pending = FALSE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Likewise with cursor blinks.
|
|
*/
|
|
static void term_schedule_cblink(Terminal *term)
|
|
{
|
|
if (term->cfg.blink_cur && term->has_focus) {
|
|
if (!term->cblink_pending)
|
|
term->next_cblink = schedule_timer(CBLINK_DELAY, term_timer, term);
|
|
term->cblink_pending = TRUE;
|
|
} else {
|
|
term->cblinker = 1; /* reset when not in use */
|
|
term->cblink_pending = FALSE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Call to reset cursor blinking on new output.
|
|
*/
|
|
static void term_reset_cblink(Terminal *term)
|
|
{
|
|
seen_disp_event(term);
|
|
term->cblinker = 1;
|
|
term->cblink_pending = FALSE;
|
|
term_schedule_cblink(term);
|
|
}
|
|
|
|
/*
|
|
* Call to begin a visual bell.
|
|
*/
|
|
static void term_schedule_vbell(Terminal *term, int already_started,
|
|
long startpoint)
|
|
{
|
|
long ticks_already_gone;
|
|
|
|
if (already_started)
|
|
ticks_already_gone = GETTICKCOUNT() - startpoint;
|
|
else
|
|
ticks_already_gone = 0;
|
|
|
|
if (ticks_already_gone < VBELL_DELAY) {
|
|
term->in_vbell = TRUE;
|
|
term->vbell_end = schedule_timer(VBELL_DELAY - ticks_already_gone,
|
|
term_timer, term);
|
|
} else {
|
|
term->in_vbell = FALSE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Set up power-on settings for the terminal.
|
|
* If 'clear' is false, don't actually clear the primary screen, and
|
|
* position the cursor below the last non-blank line (scrolling if
|
|
* necessary).
|
|
*/
|
|
static void power_on(Terminal *term, int clear)
|
|
{
|
|
term->alt_x = term->alt_y = 0;
|
|
term->savecurs.x = term->savecurs.y = 0;
|
|
term->alt_savecurs.x = term->alt_savecurs.y = 0;
|
|
term->alt_t = term->marg_t = 0;
|
|
if (term->rows != -1)
|
|
term->alt_b = term->marg_b = term->rows - 1;
|
|
else
|
|
term->alt_b = term->marg_b = 0;
|
|
if (term->cols != -1) {
|
|
int i;
|
|
for (i = 0; i < term->cols; i++)
|
|
term->tabs[i] = (i % 8 == 0 ? TRUE : FALSE);
|
|
}
|
|
term->alt_om = term->dec_om = term->cfg.dec_om;
|
|
term->alt_ins = term->insert = FALSE;
|
|
term->alt_wnext = term->wrapnext =
|
|
term->save_wnext = term->alt_save_wnext = FALSE;
|
|
term->alt_wrap = term->wrap = term->cfg.wrap_mode;
|
|
term->alt_cset = term->cset = term->save_cset = term->alt_save_cset = 0;
|
|
term->alt_utf = term->utf = term->save_utf = term->alt_save_utf = 0;
|
|
term->utf_state = 0;
|
|
term->alt_sco_acs = term->sco_acs =
|
|
term->save_sco_acs = term->alt_save_sco_acs = 0;
|
|
term->cset_attr[0] = term->cset_attr[1] =
|
|
term->save_csattr = term->alt_save_csattr = CSET_ASCII;
|
|
term->rvideo = 0;
|
|
term->in_vbell = FALSE;
|
|
term->cursor_on = 1;
|
|
term->big_cursor = 0;
|
|
term->default_attr = term->save_attr =
|
|
term->alt_save_attr = term->curr_attr = ATTR_DEFAULT;
|
|
term->term_editing = term->term_echoing = FALSE;
|
|
term->app_cursor_keys = term->cfg.app_cursor;
|
|
term->app_keypad_keys = term->cfg.app_keypad;
|
|
term->use_bce = term->cfg.bce;
|
|
term->blink_is_real = term->cfg.blinktext;
|
|
term->erase_char = term->basic_erase_char;
|
|
term->alt_which = 0;
|
|
term_print_finish(term);
|
|
{
|
|
int i;
|
|
for (i = 0; i < 256; i++)
|
|
term->wordness[i] = term->cfg.wordness[i];
|
|
}
|
|
if (term->screen) {
|
|
swap_screen(term, 1, FALSE, FALSE);
|
|
erase_lots(term, FALSE, TRUE, TRUE);
|
|
swap_screen(term, 0, FALSE, FALSE);
|
|
if (clear)
|
|
erase_lots(term, FALSE, TRUE, TRUE);
|
|
term->curs.y = find_last_nonempty_line(term, term->screen) + 1;
|
|
if (term->curs.y == term->rows) {
|
|
term->curs.y--;
|
|
scroll(term, 0, term->rows - 1, 1, TRUE);
|
|
}
|
|
} else {
|
|
term->curs.y = 0;
|
|
}
|
|
term->curs.x = 0;
|
|
term_schedule_tblink(term);
|
|
term_schedule_cblink(term);
|
|
}
|
|
|
|
/*
|
|
* Force a screen update.
|
|
*/
|
|
void term_update(Terminal *term)
|
|
{
|
|
Context ctx;
|
|
|
|
term->window_update_pending = FALSE;
|
|
|
|
ctx = get_ctx(term->frontend);
|
|
if (ctx) {
|
|
int need_sbar_update = term->seen_disp_event;
|
|
if (term->seen_disp_event && term->cfg.scroll_on_disp) {
|
|
term->disptop = 0; /* return to main screen */
|
|
term->seen_disp_event = 0;
|
|
need_sbar_update = TRUE;
|
|
}
|
|
|
|
if (need_sbar_update)
|
|
update_sbar(term);
|
|
do_paint(term, ctx, TRUE);
|
|
sys_cursor(term->frontend, term->curs.x, term->curs.y - term->disptop);
|
|
free_ctx(ctx);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Called from front end when a keypress occurs, to trigger
|
|
* anything magical that needs to happen in that situation.
|
|
*/
|
|
void term_seen_key_event(Terminal *term)
|
|
{
|
|
/*
|
|
* On any keypress, clear the bell overload mechanism
|
|
* completely, on the grounds that large numbers of
|
|
* beeps coming from deliberate key action are likely
|
|
* to be intended (e.g. beeps from filename completion
|
|
* blocking repeatedly).
|
|
*/
|
|
term->beep_overloaded = FALSE;
|
|
while (term->beephead) {
|
|
struct beeptime *tmp = term->beephead;
|
|
term->beephead = tmp->next;
|
|
sfree(tmp);
|
|
}
|
|
term->beeptail = NULL;
|
|
term->nbeeps = 0;
|
|
|
|
/*
|
|
* Reset the scrollback on keypress, if we're doing that.
|
|
*/
|
|
if (term->cfg.scroll_on_key) {
|
|
term->disptop = 0; /* return to main screen */
|
|
seen_disp_event(term);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Same as power_on(), but an external function.
|
|
*/
|
|
void term_pwron(Terminal *term, int clear)
|
|
{
|
|
power_on(term, clear);
|
|
if (term->ldisc) /* cause ldisc to notice changes */
|
|
ldisc_send(term->ldisc, NULL, 0, 0);
|
|
term->disptop = 0;
|
|
deselect(term);
|
|
term_update(term);
|
|
}
|
|
|
|
static void set_erase_char(Terminal *term)
|
|
{
|
|
term->erase_char = term->basic_erase_char;
|
|
if (term->use_bce)
|
|
term->erase_char.attr = (term->curr_attr &
|
|
(ATTR_FGMASK | ATTR_BGMASK));
|
|
}
|
|
|
|
/*
|
|
* When the user reconfigures us, we need to check the forbidden-
|
|
* alternate-screen config option, disable raw mouse mode if the
|
|
* user has disabled mouse reporting, and abandon a print job if
|
|
* the user has disabled printing.
|
|
*/
|
|
void term_reconfig(Terminal *term, Config *cfg)
|
|
{
|
|
/*
|
|
* Before adopting the new config, check all those terminal
|
|
* settings which control power-on defaults; and if they've
|
|
* changed, we will modify the current state as well as the
|
|
* default one. The full list is: Auto wrap mode, DEC Origin
|
|
* Mode, BCE, blinking text, character classes.
|
|
*/
|
|
int reset_wrap, reset_decom, reset_bce, reset_tblink, reset_charclass;
|
|
int i;
|
|
|
|
reset_wrap = (term->cfg.wrap_mode != cfg->wrap_mode);
|
|
reset_decom = (term->cfg.dec_om != cfg->dec_om);
|
|
reset_bce = (term->cfg.bce != cfg->bce);
|
|
reset_tblink = (term->cfg.blinktext != cfg->blinktext);
|
|
reset_charclass = 0;
|
|
for (i = 0; i < lenof(term->cfg.wordness); i++)
|
|
if (term->cfg.wordness[i] != cfg->wordness[i])
|
|
reset_charclass = 1;
|
|
|
|
/*
|
|
* If the bidi or shaping settings have changed, flush the bidi
|
|
* cache completely.
|
|
*/
|
|
if (term->cfg.arabicshaping != cfg->arabicshaping ||
|
|
term->cfg.bidi != cfg->bidi) {
|
|
for (i = 0; i < term->bidi_cache_size; i++) {
|
|
sfree(term->pre_bidi_cache[i].chars);
|
|
sfree(term->post_bidi_cache[i].chars);
|
|
term->pre_bidi_cache[i].width = -1;
|
|
term->pre_bidi_cache[i].chars = NULL;
|
|
term->post_bidi_cache[i].width = -1;
|
|
term->post_bidi_cache[i].chars = NULL;
|
|
}
|
|
}
|
|
|
|
term->cfg = *cfg; /* STRUCTURE COPY */
|
|
|
|
if (reset_wrap)
|
|
term->alt_wrap = term->wrap = term->cfg.wrap_mode;
|
|
if (reset_decom)
|
|
term->alt_om = term->dec_om = term->cfg.dec_om;
|
|
if (reset_bce) {
|
|
term->use_bce = term->cfg.bce;
|
|
set_erase_char(term);
|
|
}
|
|
if (reset_tblink) {
|
|
term->blink_is_real = term->cfg.blinktext;
|
|
}
|
|
if (reset_charclass)
|
|
for (i = 0; i < 256; i++)
|
|
term->wordness[i] = term->cfg.wordness[i];
|
|
|
|
if (term->cfg.no_alt_screen)
|
|
swap_screen(term, 0, FALSE, FALSE);
|
|
if (term->cfg.no_mouse_rep) {
|
|
term->xterm_mouse = 0;
|
|
set_raw_mouse_mode(term->frontend, 0);
|
|
}
|
|
if (term->cfg.no_remote_charset) {
|
|
term->cset_attr[0] = term->cset_attr[1] = CSET_ASCII;
|
|
term->sco_acs = term->alt_sco_acs = 0;
|
|
term->utf = 0;
|
|
}
|
|
if (!*term->cfg.printer) {
|
|
term_print_finish(term);
|
|
}
|
|
term_schedule_tblink(term);
|
|
term_schedule_cblink(term);
|
|
}
|
|
|
|
/*
|
|
* Clear the scrollback.
|
|
*/
|
|
void term_clrsb(Terminal *term)
|
|
{
|
|
unsigned char *line;
|
|
term->disptop = 0;
|
|
while ((line = delpos234(term->scrollback, 0)) != NULL) {
|
|
sfree(line); /* this is compressed data, not a termline */
|
|
}
|
|
term->tempsblines = 0;
|
|
term->alt_sblines = 0;
|
|
update_sbar(term);
|
|
}
|
|
|
|
/*
|
|
* Initialise the terminal.
|
|
*/
|
|
Terminal *term_init(Config *mycfg, struct unicode_data *ucsdata,
|
|
void *frontend)
|
|
{
|
|
Terminal *term;
|
|
|
|
/*
|
|
* Allocate a new Terminal structure and initialise the fields
|
|
* that need it.
|
|
*/
|
|
term = snew(Terminal);
|
|
term->frontend = frontend;
|
|
term->ucsdata = ucsdata;
|
|
term->cfg = *mycfg; /* STRUCTURE COPY */
|
|
term->logctx = NULL;
|
|
term->compatibility_level = TM_PUTTY;
|
|
strcpy(term->id_string, "\033[?6c");
|
|
term->cblink_pending = term->tblink_pending = FALSE;
|
|
term->paste_buffer = NULL;
|
|
term->paste_len = 0;
|
|
term->last_paste = 0;
|
|
bufchain_init(&term->inbuf);
|
|
bufchain_init(&term->printer_buf);
|
|
term->printing = term->only_printing = FALSE;
|
|
term->print_job = NULL;
|
|
term->vt52_mode = FALSE;
|
|
term->cr_lf_return = FALSE;
|
|
term->seen_disp_event = FALSE;
|
|
term->xterm_mouse = term->mouse_is_down = FALSE;
|
|
term->reset_132 = FALSE;
|
|
term->cblinker = term->tblinker = 0;
|
|
term->has_focus = 1;
|
|
term->repeat_off = FALSE;
|
|
term->termstate = TOPLEVEL;
|
|
term->selstate = NO_SELECTION;
|
|
term->curstype = 0;
|
|
|
|
term->screen = term->alt_screen = term->scrollback = NULL;
|
|
term->tempsblines = 0;
|
|
term->alt_sblines = 0;
|
|
term->disptop = 0;
|
|
term->disptext = NULL;
|
|
term->dispcursx = term->dispcursy = -1;
|
|
term->tabs = NULL;
|
|
deselect(term);
|
|
term->rows = term->cols = -1;
|
|
power_on(term, TRUE);
|
|
term->beephead = term->beeptail = NULL;
|
|
#ifdef OPTIMISE_SCROLL
|
|
term->scrollhead = term->scrolltail = NULL;
|
|
#endif /* OPTIMISE_SCROLL */
|
|
term->nbeeps = 0;
|
|
term->lastbeep = FALSE;
|
|
term->beep_overloaded = FALSE;
|
|
term->attr_mask = 0xffffffff;
|
|
term->resize_fn = NULL;
|
|
term->resize_ctx = NULL;
|
|
term->in_term_out = FALSE;
|
|
term->ltemp = NULL;
|
|
term->ltemp_size = 0;
|
|
term->wcFrom = NULL;
|
|
term->wcTo = NULL;
|
|
term->wcFromTo_size = 0;
|
|
|
|
term->window_update_pending = FALSE;
|
|
|
|
term->bidi_cache_size = 0;
|
|
term->pre_bidi_cache = term->post_bidi_cache = NULL;
|
|
|
|
/* FULL-TERMCHAR */
|
|
term->basic_erase_char.chr = CSET_ASCII | ' ';
|
|
term->basic_erase_char.attr = ATTR_DEFAULT;
|
|
term->basic_erase_char.cc_next = 0;
|
|
term->erase_char = term->basic_erase_char;
|
|
|
|
return term;
|
|
}
|
|
|
|
void term_free(Terminal *term)
|
|
{
|
|
termline *line;
|
|
struct beeptime *beep;
|
|
int i;
|
|
|
|
while ((line = delpos234(term->scrollback, 0)) != NULL)
|
|
sfree(line); /* compressed data, not a termline */
|
|
freetree234(term->scrollback);
|
|
while ((line = delpos234(term->screen, 0)) != NULL)
|
|
freeline(line);
|
|
freetree234(term->screen);
|
|
while ((line = delpos234(term->alt_screen, 0)) != NULL)
|
|
freeline(line);
|
|
freetree234(term->alt_screen);
|
|
if (term->disptext) {
|
|
for (i = 0; i < term->rows; i++)
|
|
freeline(term->disptext[i]);
|
|
}
|
|
sfree(term->disptext);
|
|
while (term->beephead) {
|
|
beep = term->beephead;
|
|
term->beephead = beep->next;
|
|
sfree(beep);
|
|
}
|
|
bufchain_clear(&term->inbuf);
|
|
if(term->print_job)
|
|
printer_finish_job(term->print_job);
|
|
bufchain_clear(&term->printer_buf);
|
|
sfree(term->paste_buffer);
|
|
sfree(term->ltemp);
|
|
sfree(term->wcFrom);
|
|
sfree(term->wcTo);
|
|
|
|
for (i = 0; i < term->bidi_cache_size; i++) {
|
|
sfree(term->pre_bidi_cache[i].chars);
|
|
sfree(term->post_bidi_cache[i].chars);
|
|
}
|
|
sfree(term->pre_bidi_cache);
|
|
sfree(term->post_bidi_cache);
|
|
|
|
expire_timer_context(term);
|
|
|
|
sfree(term);
|
|
}
|
|
|
|
/*
|
|
* Set up the terminal for a given size.
|
|
*/
|
|
void term_size(Terminal *term, int newrows, int newcols, int newsavelines)
|
|
{
|
|
tree234 *newalt;
|
|
termline **newdisp, *line;
|
|
int i, j, oldrows = term->rows;
|
|
int sblen;
|
|
int save_alt_which = term->alt_which;
|
|
|
|
if (newrows == term->rows && newcols == term->cols &&
|
|
newsavelines == term->savelines)
|
|
return; /* nothing to do */
|
|
|
|
/* Behave sensibly if we're given zero (or negative) rows/cols */
|
|
|
|
if (newrows < 1) newrows = 1;
|
|
if (newcols < 1) newcols = 1;
|
|
|
|
deselect(term);
|
|
swap_screen(term, 0, FALSE, FALSE);
|
|
|
|
term->alt_t = term->marg_t = 0;
|
|
term->alt_b = term->marg_b = newrows - 1;
|
|
|
|
if (term->rows == -1) {
|
|
term->scrollback = newtree234(NULL);
|
|
term->screen = newtree234(NULL);
|
|
term->tempsblines = 0;
|
|
term->rows = 0;
|
|
}
|
|
|
|
/*
|
|
* Resize the screen and scrollback. We only need to shift
|
|
* lines around within our data structures, because lineptr()
|
|
* will take care of resizing each individual line if
|
|
* necessary. So:
|
|
*
|
|
* - If the new screen is longer, we shunt lines in from temporary
|
|
* scrollback if possible, otherwise we add new blank lines at
|
|
* the bottom.
|
|
*
|
|
* - If the new screen is shorter, we remove any blank lines at
|
|
* the bottom if possible, otherwise shunt lines above the cursor
|
|
* to scrollback if possible, otherwise delete lines below the
|
|
* cursor.
|
|
*
|
|
* - Then, if the new scrollback length is less than the
|
|
* amount of scrollback we actually have, we must throw some
|
|
* away.
|
|
*/
|
|
sblen = count234(term->scrollback);
|
|
/* Do this loop to expand the screen if newrows > rows */
|
|
assert(term->rows == count234(term->screen));
|
|
while (term->rows < newrows) {
|
|
if (term->tempsblines > 0) {
|
|
unsigned char *cline;
|
|
/* Insert a line from the scrollback at the top of the screen. */
|
|
assert(sblen >= term->tempsblines);
|
|
cline = delpos234(term->scrollback, --sblen);
|
|
line = decompressline(cline, NULL);
|
|
sfree(cline);
|
|
line->temporary = FALSE; /* reconstituted line is now real */
|
|
term->tempsblines -= 1;
|
|
addpos234(term->screen, line, 0);
|
|
term->curs.y += 1;
|
|
term->savecurs.y += 1;
|
|
} else {
|
|
/* Add a new blank line at the bottom of the screen. */
|
|
line = newline(term, newcols, FALSE);
|
|
addpos234(term->screen, line, count234(term->screen));
|
|
}
|
|
term->rows += 1;
|
|
}
|
|
/* Do this loop to shrink the screen if newrows < rows */
|
|
while (term->rows > newrows) {
|
|
if (term->curs.y < term->rows - 1) {
|
|
/* delete bottom row, unless it contains the cursor */
|
|
sfree(delpos234(term->screen, term->rows - 1));
|
|
} else {
|
|
/* push top row to scrollback */
|
|
line = delpos234(term->screen, 0);
|
|
addpos234(term->scrollback, compressline(line), sblen++);
|
|
freeline(line);
|
|
term->tempsblines += 1;
|
|
term->curs.y -= 1;
|
|
term->savecurs.y -= 1;
|
|
}
|
|
term->rows -= 1;
|
|
}
|
|
assert(term->rows == newrows);
|
|
assert(count234(term->screen) == newrows);
|
|
|
|
/* Delete any excess lines from the scrollback. */
|
|
while (sblen > newsavelines) {
|
|
line = delpos234(term->scrollback, 0);
|
|
sfree(line);
|
|
sblen--;
|
|
}
|
|
if (sblen < term->tempsblines)
|
|
term->tempsblines = sblen;
|
|
assert(count234(term->scrollback) <= newsavelines);
|
|
assert(count234(term->scrollback) >= term->tempsblines);
|
|
term->disptop = 0;
|
|
|
|
/* Make a new displayed text buffer. */
|
|
newdisp = snewn(newrows, termline *);
|
|
for (i = 0; i < newrows; i++) {
|
|
newdisp[i] = newline(term, newcols, FALSE);
|
|
for (j = 0; j < newcols; j++)
|
|
newdisp[i]->chars[j].attr = ATTR_INVALID;
|
|
}
|
|
if (term->disptext) {
|
|
for (i = 0; i < oldrows; i++)
|
|
freeline(term->disptext[i]);
|
|
}
|
|
sfree(term->disptext);
|
|
term->disptext = newdisp;
|
|
term->dispcursx = term->dispcursy = -1;
|
|
|
|
/* Make a new alternate screen. */
|
|
newalt = newtree234(NULL);
|
|
for (i = 0; i < newrows; i++) {
|
|
line = newline(term, newcols, TRUE);
|
|
addpos234(newalt, line, i);
|
|
}
|
|
if (term->alt_screen) {
|
|
while (NULL != (line = delpos234(term->alt_screen, 0)))
|
|
freeline(line);
|
|
freetree234(term->alt_screen);
|
|
}
|
|
term->alt_screen = newalt;
|
|
term->alt_sblines = 0;
|
|
|
|
term->tabs = sresize(term->tabs, newcols, unsigned char);
|
|
{
|
|
int i;
|
|
for (i = (term->cols > 0 ? term->cols : 0); i < newcols; i++)
|
|
term->tabs[i] = (i % 8 == 0 ? TRUE : FALSE);
|
|
}
|
|
|
|
/* Check that the cursor positions are still valid. */
|
|
if (term->savecurs.y < 0)
|
|
term->savecurs.y = 0;
|
|
if (term->savecurs.y >= newrows)
|
|
term->savecurs.y = newrows - 1;
|
|
if (term->curs.y < 0)
|
|
term->curs.y = 0;
|
|
if (term->curs.y >= newrows)
|
|
term->curs.y = newrows - 1;
|
|
if (term->curs.x >= newcols)
|
|
term->curs.x = newcols - 1;
|
|
term->alt_x = term->alt_y = 0;
|
|
term->wrapnext = term->alt_wnext = FALSE;
|
|
|
|
term->rows = newrows;
|
|
term->cols = newcols;
|
|
term->savelines = newsavelines;
|
|
|
|
swap_screen(term, save_alt_which, FALSE, FALSE);
|
|
|
|
update_sbar(term);
|
|
term_update(term);
|
|
if (term->resize_fn)
|
|
term->resize_fn(term->resize_ctx, term->cols, term->rows);
|
|
}
|
|
|
|
/*
|
|
* Hand a function and context pointer to the terminal which it can
|
|
* use to notify a back end of resizes.
|
|
*/
|
|
void term_provide_resize_fn(Terminal *term,
|
|
void (*resize_fn)(void *, int, int),
|
|
void *resize_ctx)
|
|
{
|
|
term->resize_fn = resize_fn;
|
|
term->resize_ctx = resize_ctx;
|
|
if (resize_fn && term->cols > 0 && term->rows > 0)
|
|
resize_fn(resize_ctx, term->cols, term->rows);
|
|
}
|
|
|
|
/* Find the bottom line on the screen that has any content.
|
|
* If only the top line has content, returns 0.
|
|
* If no lines have content, return -1.
|
|
*/
|
|
static int find_last_nonempty_line(Terminal * term, tree234 * screen)
|
|
{
|
|
int i;
|
|
for (i = count234(screen) - 1; i >= 0; i--) {
|
|
termline *line = index234(screen, i);
|
|
int j;
|
|
for (j = 0; j < line->cols; j++)
|
|
if (!termchars_equal(&line->chars[j], &term->erase_char))
|
|
break;
|
|
if (j != line->cols) break;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
/*
|
|
* Swap screens. If `reset' is TRUE and we have been asked to
|
|
* switch to the alternate screen, we must bring most of its
|
|
* configuration from the main screen and erase the contents of the
|
|
* alternate screen completely. (This is even true if we're already
|
|
* on it! Blame xterm.)
|
|
*/
|
|
static void swap_screen(Terminal *term, int which, int reset, int keep_cur_pos)
|
|
{
|
|
int t;
|
|
pos tp;
|
|
tree234 *ttr;
|
|
|
|
if (!which)
|
|
reset = FALSE; /* do no weird resetting if which==0 */
|
|
|
|
if (which != term->alt_which) {
|
|
term->alt_which = which;
|
|
|
|
ttr = term->alt_screen;
|
|
term->alt_screen = term->screen;
|
|
term->screen = ttr;
|
|
term->alt_sblines = find_last_nonempty_line(term, term->alt_screen) + 1;
|
|
t = term->curs.x;
|
|
if (!reset && !keep_cur_pos)
|
|
term->curs.x = term->alt_x;
|
|
term->alt_x = t;
|
|
t = term->curs.y;
|
|
if (!reset && !keep_cur_pos)
|
|
term->curs.y = term->alt_y;
|
|
term->alt_y = t;
|
|
t = term->marg_t;
|
|
if (!reset) term->marg_t = term->alt_t;
|
|
term->alt_t = t;
|
|
t = term->marg_b;
|
|
if (!reset) term->marg_b = term->alt_b;
|
|
term->alt_b = t;
|
|
t = term->dec_om;
|
|
if (!reset) term->dec_om = term->alt_om;
|
|
term->alt_om = t;
|
|
t = term->wrap;
|
|
if (!reset) term->wrap = term->alt_wrap;
|
|
term->alt_wrap = t;
|
|
t = term->wrapnext;
|
|
if (!reset) term->wrapnext = term->alt_wnext;
|
|
term->alt_wnext = t;
|
|
t = term->insert;
|
|
if (!reset) term->insert = term->alt_ins;
|
|
term->alt_ins = t;
|
|
t = term->cset;
|
|
if (!reset) term->cset = term->alt_cset;
|
|
term->alt_cset = t;
|
|
t = term->utf;
|
|
if (!reset) term->utf = term->alt_utf;
|
|
term->alt_utf = t;
|
|
t = term->sco_acs;
|
|
if (!reset) term->sco_acs = term->alt_sco_acs;
|
|
term->alt_sco_acs = t;
|
|
|
|
tp = term->savecurs;
|
|
if (!reset && !keep_cur_pos)
|
|
term->savecurs = term->alt_savecurs;
|
|
term->alt_savecurs = tp;
|
|
t = term->save_cset;
|
|
if (!reset && !keep_cur_pos)
|
|
term->save_cset = term->alt_save_cset;
|
|
term->alt_save_cset = t;
|
|
t = term->save_csattr;
|
|
if (!reset && !keep_cur_pos)
|
|
term->save_csattr = term->alt_save_csattr;
|
|
term->alt_save_csattr = t;
|
|
t = term->save_attr;
|
|
if (!reset && !keep_cur_pos)
|
|
term->save_attr = term->alt_save_attr;
|
|
term->alt_save_attr = t;
|
|
t = term->save_utf;
|
|
if (!reset && !keep_cur_pos)
|
|
term->save_utf = term->alt_save_utf;
|
|
term->alt_save_utf = t;
|
|
t = term->save_wnext;
|
|
if (!reset && !keep_cur_pos)
|
|
term->save_wnext = term->alt_save_wnext;
|
|
term->alt_save_wnext = t;
|
|
t = term->save_sco_acs;
|
|
if (!reset && !keep_cur_pos)
|
|
term->save_sco_acs = term->alt_save_sco_acs;
|
|
term->alt_save_sco_acs = t;
|
|
}
|
|
|
|
if (reset && term->screen) {
|
|
/*
|
|
* Yes, this _is_ supposed to honour background-colour-erase.
|
|
*/
|
|
erase_lots(term, FALSE, TRUE, TRUE);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Update the scroll bar.
|
|
*/
|
|
static void update_sbar(Terminal *term)
|
|
{
|
|
int nscroll = sblines(term);
|
|
set_sbar(term->frontend, nscroll + term->rows,
|
|
nscroll + term->disptop, term->rows);
|
|
}
|
|
|
|
/*
|
|
* Check whether the region bounded by the two pointers intersects
|
|
* the scroll region, and de-select the on-screen selection if so.
|
|
*/
|
|
static void check_selection(Terminal *term, pos from, pos to)
|
|
{
|
|
if (poslt(from, term->selend) && poslt(term->selstart, to))
|
|
deselect(term);
|
|
}
|
|
|
|
/*
|
|
* Scroll the screen. (`lines' is +ve for scrolling forward, -ve
|
|
* for backward.) `sb' is TRUE if the scrolling is permitted to
|
|
* affect the scrollback buffer.
|
|
*/
|
|
static void scroll(Terminal *term, int topline, int botline, int lines, int sb)
|
|
{
|
|
termline *line;
|
|
int i, seltop, olddisptop, shift;
|
|
|
|
if (topline != 0 || term->alt_which != 0)
|
|
sb = FALSE;
|
|
|
|
olddisptop = term->disptop;
|
|
shift = lines;
|
|
if (lines < 0) {
|
|
while (lines < 0) {
|
|
line = delpos234(term->screen, botline);
|
|
resizeline(term, line, term->cols);
|
|
for (i = 0; i < term->cols; i++)
|
|
copy_termchar(line, i, &term->erase_char);
|
|
line->lattr = LATTR_NORM;
|
|
addpos234(term->screen, line, topline);
|
|
|
|
if (term->selstart.y >= topline && term->selstart.y <= botline) {
|
|
term->selstart.y++;
|
|
if (term->selstart.y > botline) {
|
|
term->selstart.y = botline + 1;
|
|
term->selstart.x = 0;
|
|
}
|
|
}
|
|
if (term->selend.y >= topline && term->selend.y <= botline) {
|
|
term->selend.y++;
|
|
if (term->selend.y > botline) {
|
|
term->selend.y = botline + 1;
|
|
term->selend.x = 0;
|
|
}
|
|
}
|
|
|
|
lines++;
|
|
}
|
|
} else {
|
|
while (lines > 0) {
|
|
line = delpos234(term->screen, topline);
|
|
#ifdef TERM_CC_DIAGS
|
|
cc_check(line);
|
|
#endif
|
|
if (sb && term->savelines > 0) {
|
|
int sblen = count234(term->scrollback);
|
|
/*
|
|
* We must add this line to the scrollback. We'll
|
|
* remove a line from the top of the scrollback if
|
|
* the scrollback is full.
|
|
*/
|
|
if (sblen == term->savelines) {
|
|
unsigned char *cline;
|
|
|
|
sblen--;
|
|
cline = delpos234(term->scrollback, 0);
|
|
sfree(cline);
|
|
} else
|
|
term->tempsblines += 1;
|
|
|
|
addpos234(term->scrollback, compressline(line), sblen);
|
|
|
|
/* now `line' itself can be reused as the bottom line */
|
|
|
|
/*
|
|
* If the user is currently looking at part of the
|
|
* scrollback, and they haven't enabled any options
|
|
* that are going to reset the scrollback as a
|
|
* result of this movement, then the chances are
|
|
* they'd like to keep looking at the same line. So
|
|
* we move their viewpoint at the same rate as the
|
|
* scroll, at least until their viewpoint hits the
|
|
* top end of the scrollback buffer, at which point
|
|
* we don't have the choice any more.
|
|
*
|
|
* Thanks to Jan Holmen Holsten for the idea and
|
|
* initial implementation.
|
|
*/
|
|
if (term->disptop > -term->savelines && term->disptop < 0)
|
|
term->disptop--;
|
|
}
|
|
resizeline(term, line, term->cols);
|
|
for (i = 0; i < term->cols; i++)
|
|
copy_termchar(line, i, &term->erase_char);
|
|
line->lattr = LATTR_NORM;
|
|
addpos234(term->screen, line, botline);
|
|
|
|
/*
|
|
* If the selection endpoints move into the scrollback,
|
|
* we keep them moving until they hit the top. However,
|
|
* of course, if the line _hasn't_ moved into the
|
|
* scrollback then we don't do this, and cut them off
|
|
* at the top of the scroll region.
|
|
*
|
|
* This applies to selstart and selend (for an existing
|
|
* selection), and also selanchor (for one being
|
|
* selected as we speak).
|
|
*/
|
|
seltop = sb ? -term->savelines : topline;
|
|
|
|
if (term->selstate != NO_SELECTION) {
|
|
if (term->selstart.y >= seltop &&
|
|
term->selstart.y <= botline) {
|
|
term->selstart.y--;
|
|
if (term->selstart.y < seltop) {
|
|
term->selstart.y = seltop;
|
|
term->selstart.x = 0;
|
|
}
|
|
}
|
|
if (term->selend.y >= seltop && term->selend.y <= botline) {
|
|
term->selend.y--;
|
|
if (term->selend.y < seltop) {
|
|
term->selend.y = seltop;
|
|
term->selend.x = 0;
|
|
}
|
|
}
|
|
if (term->selanchor.y >= seltop &&
|
|
term->selanchor.y <= botline) {
|
|
term->selanchor.y--;
|
|
if (term->selanchor.y < seltop) {
|
|
term->selanchor.y = seltop;
|
|
term->selanchor.x = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
lines--;
|
|
}
|
|
}
|
|
#ifdef OPTIMISE_SCROLL
|
|
shift += term->disptop - olddisptop;
|
|
if (shift < term->rows && shift > -term->rows && shift != 0)
|
|
scroll_display(term, topline, botline, shift);
|
|
#endif /* OPTIMISE_SCROLL */
|
|
}
|
|
|
|
#ifdef OPTIMISE_SCROLL
|
|
/*
|
|
* Add a scroll of a region on the screen into the pending scroll list.
|
|
* `lines' is +ve for scrolling forward, -ve for backward.
|
|
*
|
|
* If the scroll is on the same area as the last scroll in the list,
|
|
* merge them.
|
|
*/
|
|
static void save_scroll(Terminal *term, int topline, int botline, int lines)
|
|
{
|
|
struct scrollregion *newscroll;
|
|
if (term->scrolltail &&
|
|
term->scrolltail->topline == topline &&
|
|
term->scrolltail->botline == botline) {
|
|
term->scrolltail->lines += lines;
|
|
} else {
|
|
newscroll = snew(struct scrollregion);
|
|
newscroll->topline = topline;
|
|
newscroll->botline = botline;
|
|
newscroll->lines = lines;
|
|
newscroll->next = NULL;
|
|
|
|
if (!term->scrollhead)
|
|
term->scrollhead = newscroll;
|
|
else
|
|
term->scrolltail->next = newscroll;
|
|
term->scrolltail = newscroll;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Scroll the physical display, and our conception of it in disptext.
|
|
*/
|
|
static void scroll_display(Terminal *term, int topline, int botline, int lines)
|
|
{
|
|
int distance, nlines, i, j;
|
|
|
|
distance = lines > 0 ? lines : -lines;
|
|
nlines = botline - topline + 1 - distance;
|
|
if (lines > 0) {
|
|
for (i = 0; i < nlines; i++)
|
|
for (j = 0; j < term->cols; j++)
|
|
copy_termchar(term->disptext[i], j,
|
|
term->disptext[i+distance]->chars+j);
|
|
if (term->dispcursy >= 0 &&
|
|
term->dispcursy >= topline + distance &&
|
|
term->dispcursy < topline + distance + nlines)
|
|
term->dispcursy -= distance;
|
|
for (i = 0; i < distance; i++)
|
|
for (j = 0; j < term->cols; j++)
|
|
term->disptext[nlines+i]->chars[j].attr |= ATTR_INVALID;
|
|
} else {
|
|
for (i = nlines; i-- ;)
|
|
for (j = 0; j < term->cols; j++)
|
|
copy_termchar(term->disptext[i+distance], j,
|
|
term->disptext[i]->chars+j);
|
|
if (term->dispcursy >= 0 &&
|
|
term->dispcursy >= topline &&
|
|
term->dispcursy < topline + nlines)
|
|
term->dispcursy += distance;
|
|
for (i = 0; i < distance; i++)
|
|
for (j = 0; j < term->cols; j++)
|
|
term->disptext[i]->chars[j].attr |= ATTR_INVALID;
|
|
}
|
|
save_scroll(term, topline, botline, lines);
|
|
}
|
|
#endif /* OPTIMISE_SCROLL */
|
|
|
|
/*
|
|
* Move the cursor to a given position, clipping at boundaries. We
|
|
* may or may not want to clip at the scroll margin: marg_clip is 0
|
|
* not to, 1 to disallow _passing_ the margins, and 2 to disallow
|
|
* even _being_ outside the margins.
|
|
*/
|
|
static void move(Terminal *term, int x, int y, int marg_clip)
|
|
{
|
|
if (x < 0)
|
|
x = 0;
|
|
if (x >= term->cols)
|
|
x = term->cols - 1;
|
|
if (marg_clip) {
|
|
if ((term->curs.y >= term->marg_t || marg_clip == 2) &&
|
|
y < term->marg_t)
|
|
y = term->marg_t;
|
|
if ((term->curs.y <= term->marg_b || marg_clip == 2) &&
|
|
y > term->marg_b)
|
|
y = term->marg_b;
|
|
}
|
|
if (y < 0)
|
|
y = 0;
|
|
if (y >= term->rows)
|
|
y = term->rows - 1;
|
|
term->curs.x = x;
|
|
term->curs.y = y;
|
|
term->wrapnext = FALSE;
|
|
}
|
|
|
|
/*
|
|
* Save or restore the cursor and SGR mode.
|
|
*/
|
|
static void save_cursor(Terminal *term, int save)
|
|
{
|
|
if (save) {
|
|
term->savecurs = term->curs;
|
|
term->save_attr = term->curr_attr;
|
|
term->save_cset = term->cset;
|
|
term->save_utf = term->utf;
|
|
term->save_wnext = term->wrapnext;
|
|
term->save_csattr = term->cset_attr[term->cset];
|
|
term->save_sco_acs = term->sco_acs;
|
|
} else {
|
|
term->curs = term->savecurs;
|
|
/* Make sure the window hasn't shrunk since the save */
|
|
if (term->curs.x >= term->cols)
|
|
term->curs.x = term->cols - 1;
|
|
if (term->curs.y >= term->rows)
|
|
term->curs.y = term->rows - 1;
|
|
|
|
term->curr_attr = term->save_attr;
|
|
term->cset = term->save_cset;
|
|
term->utf = term->save_utf;
|
|
term->wrapnext = term->save_wnext;
|
|
/*
|
|
* wrapnext might reset to False if the x position is no
|
|
* longer at the rightmost edge.
|
|
*/
|
|
if (term->wrapnext && term->curs.x < term->cols-1)
|
|
term->wrapnext = FALSE;
|
|
term->cset_attr[term->cset] = term->save_csattr;
|
|
term->sco_acs = term->save_sco_acs;
|
|
set_erase_char(term);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This function is called before doing _anything_ which affects
|
|
* only part of a line of text. It is used to mark the boundary
|
|
* between two character positions, and it indicates that some sort
|
|
* of effect is going to happen on only one side of that boundary.
|
|
*
|
|
* The effect of this function is to check whether a CJK
|
|
* double-width character is straddling the boundary, and to remove
|
|
* it and replace it with two spaces if so. (Of course, one or
|
|
* other of those spaces is then likely to be replaced with
|
|
* something else again, as a result of whatever happens next.)
|
|
*
|
|
* Also, if the boundary is at the right-hand _edge_ of the screen,
|
|
* it implies something deliberate is being done to the rightmost
|
|
* column position; hence we must clear LATTR_WRAPPED2.
|
|
*
|
|
* The input to the function is the coordinates of the _second_
|
|
* character of the pair.
|
|
*/
|
|
static void check_boundary(Terminal *term, int x, int y)
|
|
{
|
|
termline *ldata;
|
|
|
|
/* Validate input coordinates, just in case. */
|
|
if (x == 0 || x > term->cols)
|
|
return;
|
|
|
|
ldata = scrlineptr(y);
|
|
if (x == term->cols) {
|
|
ldata->lattr &= ~LATTR_WRAPPED2;
|
|
} else {
|
|
if (ldata->chars[x].chr == UCSWIDE) {
|
|
clear_cc(ldata, x-1);
|
|
clear_cc(ldata, x);
|
|
ldata->chars[x-1].chr = ' ' | CSET_ASCII;
|
|
ldata->chars[x] = ldata->chars[x-1];
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Erase a large portion of the screen: the whole screen, or the
|
|
* whole line, or parts thereof.
|
|
*/
|
|
static void erase_lots(Terminal *term,
|
|
int line_only, int from_begin, int to_end)
|
|
{
|
|
pos start, end;
|
|
int erase_lattr;
|
|
int erasing_lines_from_top = 0;
|
|
|
|
if (line_only) {
|
|
start.y = term->curs.y;
|
|
start.x = 0;
|
|
end.y = term->curs.y + 1;
|
|
end.x = 0;
|
|
erase_lattr = FALSE;
|
|
} else {
|
|
start.y = 0;
|
|
start.x = 0;
|
|
end.y = term->rows;
|
|
end.x = 0;
|
|
erase_lattr = TRUE;
|
|
}
|
|
if (!from_begin) {
|
|
start = term->curs;
|
|
}
|
|
if (!to_end) {
|
|
end = term->curs;
|
|
incpos(end);
|
|
}
|
|
if (!from_begin || !to_end)
|
|
check_boundary(term, term->curs.x, term->curs.y);
|
|
check_selection(term, start, end);
|
|
|
|
/* Clear screen also forces a full window redraw, just in case. */
|
|
if (start.y == 0 && start.x == 0 && end.y == term->rows)
|
|
term_invalidate(term);
|
|
|
|
/* Lines scrolled away shouldn't be brought back on if the terminal
|
|
* resizes. */
|
|
if (start.y == 0 && start.x == 0 && end.x == 0 && erase_lattr)
|
|
erasing_lines_from_top = 1;
|
|
|
|
if (term->cfg.erase_to_scrollback && erasing_lines_from_top) {
|
|
/* If it's a whole number of lines, starting at the top, and
|
|
* we're fully erasing them, erase by scrolling and keep the
|
|
* lines in the scrollback. */
|
|
int scrolllines = end.y;
|
|
if (end.y == term->rows) {
|
|
/* Shrink until we find a non-empty row.*/
|
|
scrolllines = find_last_nonempty_line(term, term->screen) + 1;
|
|
}
|
|
if (scrolllines > 0)
|
|
scroll(term, 0, scrolllines - 1, scrolllines, TRUE);
|
|
} else {
|
|
termline *ldata = scrlineptr(start.y);
|
|
while (poslt(start, end)) {
|
|
if (start.x == term->cols) {
|
|
if (!erase_lattr)
|
|
ldata->lattr &= ~(LATTR_WRAPPED | LATTR_WRAPPED2);
|
|
else
|
|
ldata->lattr = LATTR_NORM;
|
|
} else {
|
|
copy_termchar(ldata, start.x, &term->erase_char);
|
|
}
|
|
if (incpos(start) && start.y < term->rows) {
|
|
ldata = scrlineptr(start.y);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* After an erase of lines from the top of the screen, we shouldn't
|
|
* bring the lines back again if the terminal enlarges (since the user or
|
|
* application has explictly thrown them away). */
|
|
if (erasing_lines_from_top && !(term->alt_which))
|
|
term->tempsblines = 0;
|
|
}
|
|
|
|
/*
|
|
* Insert or delete characters within the current line. n is +ve if
|
|
* insertion is desired, and -ve for deletion.
|
|
*/
|
|
static void insch(Terminal *term, int n)
|
|
{
|
|
int dir = (n < 0 ? -1 : +1);
|
|
int m, j;
|
|
pos cursplus;
|
|
termline *ldata;
|
|
|
|
n = (n < 0 ? -n : n);
|
|
if (n > term->cols - term->curs.x)
|
|
n = term->cols - term->curs.x;
|
|
m = term->cols - term->curs.x - n;
|
|
cursplus.y = term->curs.y;
|
|
cursplus.x = term->curs.x + n;
|
|
check_selection(term, term->curs, cursplus);
|
|
check_boundary(term, term->curs.x, term->curs.y);
|
|
if (dir < 0)
|
|
check_boundary(term, term->curs.x + n, term->curs.y);
|
|
ldata = scrlineptr(term->curs.y);
|
|
if (dir < 0) {
|
|
for (j = 0; j < m; j++)
|
|
move_termchar(ldata,
|
|
ldata->chars + term->curs.x + j,
|
|
ldata->chars + term->curs.x + j + n);
|
|
while (n--)
|
|
copy_termchar(ldata, term->curs.x + m++, &term->erase_char);
|
|
} else {
|
|
for (j = m; j-- ;)
|
|
move_termchar(ldata,
|
|
ldata->chars + term->curs.x + j + n,
|
|
ldata->chars + term->curs.x + j);
|
|
while (n--)
|
|
copy_termchar(ldata, term->curs.x + n, &term->erase_char);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Toggle terminal mode `mode' to state `state'. (`query' indicates
|
|
* whether the mode is a DEC private one or a normal one.)
|
|
*/
|
|
static void toggle_mode(Terminal *term, int mode, int query, int state)
|
|
{
|
|
if (query)
|
|
switch (mode) {
|
|
case 1: /* DECCKM: application cursor keys */
|
|
term->app_cursor_keys = state;
|
|
break;
|
|
case 2: /* DECANM: VT52 mode */
|
|
term->vt52_mode = !state;
|
|
if (term->vt52_mode) {
|
|
term->blink_is_real = FALSE;
|
|
term->vt52_bold = FALSE;
|
|
} else {
|
|
term->blink_is_real = term->cfg.blinktext;
|
|
}
|
|
term_schedule_tblink(term);
|
|
break;
|
|
case 3: /* DECCOLM: 80/132 columns */
|
|
deselect(term);
|
|
if (!term->cfg.no_remote_resize)
|
|
request_resize(term->frontend, state ? 132 : 80, term->rows);
|
|
term->reset_132 = state;
|
|
term->alt_t = term->marg_t = 0;
|
|
term->alt_b = term->marg_b = term->rows - 1;
|
|
move(term, 0, 0, 0);
|
|
erase_lots(term, FALSE, TRUE, TRUE);
|
|
break;
|
|
case 5: /* DECSCNM: reverse video */
|
|
/*
|
|
* Toggle reverse video. If we receive an OFF within the
|
|
* visual bell timeout period after an ON, we trigger an
|
|
* effective visual bell, so that ESC[?5hESC[?5l will
|
|
* always be an actually _visible_ visual bell.
|
|
*/
|
|
if (term->rvideo && !state) {
|
|
/* This is an OFF, so set up a vbell */
|
|
term_schedule_vbell(term, TRUE, term->rvbell_startpoint);
|
|
} else if (!term->rvideo && state) {
|
|
/* This is an ON, so we notice the time and save it. */
|
|
term->rvbell_startpoint = GETTICKCOUNT();
|
|
}
|
|
term->rvideo = state;
|
|
seen_disp_event(term);
|
|
break;
|
|
case 6: /* DECOM: DEC origin mode */
|
|
term->dec_om = state;
|
|
break;
|
|
case 7: /* DECAWM: auto wrap */
|
|
term->wrap = state;
|
|
break;
|
|
case 8: /* DECARM: auto key repeat */
|
|
term->repeat_off = !state;
|
|
break;
|
|
case 10: /* DECEDM: set local edit mode */
|
|
term->term_editing = state;
|
|
if (term->ldisc) /* cause ldisc to notice changes */
|
|
ldisc_send(term->ldisc, NULL, 0, 0);
|
|
break;
|
|
case 25: /* DECTCEM: enable/disable cursor */
|
|
compatibility2(OTHER, VT220);
|
|
term->cursor_on = state;
|
|
seen_disp_event(term);
|
|
break;
|
|
case 47: /* alternate screen */
|
|
compatibility(OTHER);
|
|
deselect(term);
|
|
swap_screen(term, term->cfg.no_alt_screen ? 0 : state, FALSE, FALSE);
|
|
term->disptop = 0;
|
|
break;
|
|
case 1000: /* xterm mouse 1 */
|
|
term->xterm_mouse = state ? 1 : 0;
|
|
set_raw_mouse_mode(term->frontend, state);
|
|
break;
|
|
case 1002: /* xterm mouse 2 */
|
|
term->xterm_mouse = state ? 2 : 0;
|
|
set_raw_mouse_mode(term->frontend, state);
|
|
break;
|
|
case 1047: /* alternate screen */
|
|
compatibility(OTHER);
|
|
deselect(term);
|
|
swap_screen(term, term->cfg.no_alt_screen ? 0 : state, TRUE, TRUE);
|
|
term->disptop = 0;
|
|
break;
|
|
case 1048: /* save/restore cursor */
|
|
if (!term->cfg.no_alt_screen)
|
|
save_cursor(term, state);
|
|
if (!state) seen_disp_event(term);
|
|
break;
|
|
case 1049: /* cursor & alternate screen */
|
|
if (state && !term->cfg.no_alt_screen)
|
|
save_cursor(term, state);
|
|
if (!state) seen_disp_event(term);
|
|
compatibility(OTHER);
|
|
deselect(term);
|
|
swap_screen(term, term->cfg.no_alt_screen ? 0 : state, TRUE, FALSE);
|
|
if (!state && !term->cfg.no_alt_screen)
|
|
save_cursor(term, state);
|
|
term->disptop = 0;
|
|
break;
|
|
} else
|
|
switch (mode) {
|
|
case 4: /* IRM: set insert mode */
|
|
compatibility(VT102);
|
|
term->insert = state;
|
|
break;
|
|
case 12: /* SRM: set echo mode */
|
|
term->term_echoing = !state;
|
|
if (term->ldisc) /* cause ldisc to notice changes */
|
|
ldisc_send(term->ldisc, NULL, 0, 0);
|
|
break;
|
|
case 20: /* LNM: Return sends ... */
|
|
term->cr_lf_return = state;
|
|
break;
|
|
case 34: /* WYULCURM: Make cursor BIG */
|
|
compatibility2(OTHER, VT220);
|
|
term->big_cursor = !state;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Process an OSC sequence: set window title or icon name.
|
|
*/
|
|
static void do_osc(Terminal *term)
|
|
{
|
|
if (term->osc_w) {
|
|
while (term->osc_strlen--)
|
|
term->wordness[(unsigned char)
|
|
term->osc_string[term->osc_strlen]] = term->esc_args[0];
|
|
} else {
|
|
term->osc_string[term->osc_strlen] = '\0';
|
|
switch (term->esc_args[0]) {
|
|
case 0:
|
|
case 1:
|
|
if (!term->cfg.no_remote_wintitle)
|
|
set_icon(term->frontend, term->osc_string);
|
|
if (term->esc_args[0] == 1)
|
|
break;
|
|
/* fall through: parameter 0 means set both */
|
|
case 2:
|
|
case 21:
|
|
if (!term->cfg.no_remote_wintitle)
|
|
set_title(term->frontend, term->osc_string);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* ANSI printing routines.
|
|
*/
|
|
static void term_print_setup(Terminal *term)
|
|
{
|
|
bufchain_clear(&term->printer_buf);
|
|
term->print_job = printer_start_job(term->cfg.printer);
|
|
}
|
|
static void term_print_flush(Terminal *term)
|
|
{
|
|
void *data;
|
|
int len;
|
|
int size;
|
|
while ((size = bufchain_size(&term->printer_buf)) > 5) {
|
|
bufchain_prefix(&term->printer_buf, &data, &len);
|
|
if (len > size-5)
|
|
len = size-5;
|
|
printer_job_data(term->print_job, data, len);
|
|
bufchain_consume(&term->printer_buf, len);
|
|
}
|
|
}
|
|
static void term_print_finish(Terminal *term)
|
|
{
|
|
void *data;
|
|
int len, size;
|
|
char c;
|
|
|
|
if (!term->printing && !term->only_printing)
|
|
return; /* we need do nothing */
|
|
|
|
term_print_flush(term);
|
|
while ((size = bufchain_size(&term->printer_buf)) > 0) {
|
|
bufchain_prefix(&term->printer_buf, &data, &len);
|
|
c = *(char *)data;
|
|
if (c == '\033' || c == '\233') {
|
|
bufchain_consume(&term->printer_buf, size);
|
|
break;
|
|
} else {
|
|
printer_job_data(term->print_job, &c, 1);
|
|
bufchain_consume(&term->printer_buf, 1);
|
|
}
|
|
}
|
|
printer_finish_job(term->print_job);
|
|
term->print_job = NULL;
|
|
term->printing = term->only_printing = FALSE;
|
|
}
|
|
|
|
/*
|
|
* Remove everything currently in `inbuf' and stick it up on the
|
|
* in-memory display. There's a big state machine in here to
|
|
* process escape sequences...
|
|
*/
|
|
static void term_out(Terminal *term)
|
|
{
|
|
unsigned long c;
|
|
int unget;
|
|
unsigned char localbuf[256], *chars;
|
|
int nchars = 0;
|
|
|
|
unget = -1;
|
|
|
|
chars = NULL; /* placate compiler warnings */
|
|
while (nchars > 0 || unget != -1 || bufchain_size(&term->inbuf) > 0) {
|
|
if (unget == -1) {
|
|
if (nchars == 0) {
|
|
void *ret;
|
|
bufchain_prefix(&term->inbuf, &ret, &nchars);
|
|
if (nchars > sizeof(localbuf))
|
|
nchars = sizeof(localbuf);
|
|
memcpy(localbuf, ret, nchars);
|
|
bufchain_consume(&term->inbuf, nchars);
|
|
chars = localbuf;
|
|
assert(chars != NULL);
|
|
}
|
|
c = *chars++;
|
|
nchars--;
|
|
|
|
/*
|
|
* Optionally log the session traffic to a file. Useful for
|
|
* debugging and possibly also useful for actual logging.
|
|
*/
|
|
if (term->cfg.logtype == LGTYP_DEBUG && term->logctx)
|
|
logtraffic(term->logctx, (unsigned char) c, LGTYP_DEBUG);
|
|
} else {
|
|
c = unget;
|
|
unget = -1;
|
|
}
|
|
|
|
/* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
|
|
* be able to display 8-bit characters, but I'll let that go 'cause
|
|
* of i18n.
|
|
*/
|
|
|
|
/*
|
|
* If we're printing, add the character to the printer
|
|
* buffer.
|
|
*/
|
|
if (term->printing) {
|
|
bufchain_add(&term->printer_buf, &c, 1);
|
|
|
|
/*
|
|
* If we're in print-only mode, we use a much simpler
|
|
* state machine designed only to recognise the ESC[4i
|
|
* termination sequence.
|
|
*/
|
|
if (term->only_printing) {
|
|
if (c == '\033')
|
|
term->print_state = 1;
|
|
else if (c == (unsigned char)'\233')
|
|
term->print_state = 2;
|
|
else if (c == '[' && term->print_state == 1)
|
|
term->print_state = 2;
|
|
else if (c == '4' && term->print_state == 2)
|
|
term->print_state = 3;
|
|
else if (c == 'i' && term->print_state == 3)
|
|
term->print_state = 4;
|
|
else
|
|
term->print_state = 0;
|
|
if (term->print_state == 4) {
|
|
term_print_finish(term);
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/* First see about all those translations. */
|
|
if (term->termstate == TOPLEVEL) {
|
|
if (in_utf(term))
|
|
switch (term->utf_state) {
|
|
case 0:
|
|
if (c < 0x80) {
|
|
/* UTF-8 must be stateless so we ignore iso2022. */
|
|
if (term->ucsdata->unitab_ctrl[c] != 0xFF)
|
|
c = term->ucsdata->unitab_ctrl[c];
|
|
else c = ((unsigned char)c) | CSET_ASCII;
|
|
break;
|
|
} else if ((c & 0xe0) == 0xc0) {
|
|
term->utf_size = term->utf_state = 1;
|
|
term->utf_char = (c & 0x1f);
|
|
} else if ((c & 0xf0) == 0xe0) {
|
|
term->utf_size = term->utf_state = 2;
|
|
term->utf_char = (c & 0x0f);
|
|
} else if ((c & 0xf8) == 0xf0) {
|
|
term->utf_size = term->utf_state = 3;
|
|
term->utf_char = (c & 0x07);
|
|
} else if ((c & 0xfc) == 0xf8) {
|
|
term->utf_size = term->utf_state = 4;
|
|
term->utf_char = (c & 0x03);
|
|
} else if ((c & 0xfe) == 0xfc) {
|
|
term->utf_size = term->utf_state = 5;
|
|
term->utf_char = (c & 0x01);
|
|
} else {
|
|
c = UCSERR;
|
|
break;
|
|
}
|
|
continue;
|
|
case 1:
|
|
case 2:
|
|
case 3:
|
|
case 4:
|
|
case 5:
|
|
if ((c & 0xC0) != 0x80) {
|
|
unget = c;
|
|
c = UCSERR;
|
|
term->utf_state = 0;
|
|
break;
|
|
}
|
|
term->utf_char = (term->utf_char << 6) | (c & 0x3f);
|
|
if (--term->utf_state)
|
|
continue;
|
|
|
|
c = term->utf_char;
|
|
|
|
/* Is somebody trying to be evil! */
|
|
if (c < 0x80 ||
|
|
(c < 0x800 && term->utf_size >= 2) ||
|
|
(c < 0x10000 && term->utf_size >= 3) ||
|
|
(c < 0x200000 && term->utf_size >= 4) ||
|
|
(c < 0x4000000 && term->utf_size >= 5))
|
|
c = UCSERR;
|
|
|
|
/* Unicode line separator and paragraph separator are CR-LF */
|
|
if (c == 0x2028 || c == 0x2029)
|
|
c = 0x85;
|
|
|
|
/* High controls are probably a Baaad idea too. */
|
|
if (c < 0xA0)
|
|
c = 0xFFFD;
|
|
|
|
/* The UTF-16 surrogates are not nice either. */
|
|
/* The standard give the option of decoding these:
|
|
* I don't want to! */
|
|
if (c >= 0xD800 && c < 0xE000)
|
|
c = UCSERR;
|
|
|
|
/* ISO 10646 characters now limited to UTF-16 range. */
|
|
if (c > 0x10FFFF)
|
|
c = UCSERR;
|
|
|
|
/* This is currently a TagPhobic application.. */
|
|
if (c >= 0xE0000 && c <= 0xE007F)
|
|
continue;
|
|
|
|
/* U+FEFF is best seen as a null. */
|
|
if (c == 0xFEFF)
|
|
continue;
|
|
/* But U+FFFE is an error. */
|
|
if (c == 0xFFFE || c == 0xFFFF)
|
|
c = UCSERR;
|
|
|
|
break;
|
|
}
|
|
/* Are we in the nasty ACS mode? Note: no sco in utf mode. */
|
|
else if(term->sco_acs &&
|
|
(c!='\033' && c!='\012' && c!='\015' && c!='\b'))
|
|
{
|
|
if (term->sco_acs == 2) c |= 0x80;
|
|
c |= CSET_SCOACS;
|
|
} else {
|
|
switch (term->cset_attr[term->cset]) {
|
|
/*
|
|
* Linedraw characters are different from 'ESC ( B'
|
|
* only for a small range. For ones outside that
|
|
* range, make sure we use the same font as well as
|
|
* the same encoding.
|
|
*/
|
|
case CSET_LINEDRW:
|
|
if (term->ucsdata->unitab_ctrl[c] != 0xFF)
|
|
c = term->ucsdata->unitab_ctrl[c];
|
|
else
|
|
c = ((unsigned char) c) | CSET_LINEDRW;
|
|
break;
|
|
|
|
case CSET_GBCHR:
|
|
/* If UK-ASCII, make the '#' a LineDraw Pound */
|
|
if (c == '#') {
|
|
c = '}' | CSET_LINEDRW;
|
|
break;
|
|
}
|
|
/*FALLTHROUGH*/ case CSET_ASCII:
|
|
if (term->ucsdata->unitab_ctrl[c] != 0xFF)
|
|
c = term->ucsdata->unitab_ctrl[c];
|
|
else
|
|
c = ((unsigned char) c) | CSET_ASCII;
|
|
break;
|
|
case CSET_SCOACS:
|
|
if (c>=' ') c = ((unsigned char)c) | CSET_SCOACS;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* How about C1 controls?
|
|
* Explicitly ignore SCI (0x9a), which we don't translate to DECID.
|
|
*/
|
|
if ((c & -32) == 0x80 && term->termstate < DO_CTRLS &&
|
|
!term->vt52_mode && has_compat(VT220)) {
|
|
if (c == 0x9a)
|
|
c = 0;
|
|
else {
|
|
term->termstate = SEEN_ESC;
|
|
term->esc_query = FALSE;
|
|
c = '@' + (c & 0x1F);
|
|
}
|
|
}
|
|
|
|
/* Or the GL control. */
|
|
if (c == '\177' && term->termstate < DO_CTRLS && has_compat(OTHER)) {
|
|
if (term->curs.x && !term->wrapnext)
|
|
term->curs.x--;
|
|
term->wrapnext = FALSE;
|
|
/* destructive backspace might be disabled */
|
|
if (!term->cfg.no_dbackspace) {
|
|
check_boundary(term, term->curs.x, term->curs.y);
|
|
check_boundary(term, term->curs.x+1, term->curs.y);
|
|
copy_termchar(scrlineptr(term->curs.y),
|
|
term->curs.x, &term->erase_char);
|
|
}
|
|
} else
|
|
/* Or normal C0 controls. */
|
|
if ((c & ~0x1F) == 0 && term->termstate < DO_CTRLS) {
|
|
switch (c) {
|
|
case '\005': /* ENQ: terminal type query */
|
|
/*
|
|
* Strictly speaking this is VT100 but a VT100 defaults to
|
|
* no response. Other terminals respond at their option.
|
|
*
|
|
* Don't put a CR in the default string as this tends to
|
|
* upset some weird software.
|
|
*/
|
|
compatibility(ANSIMIN);
|
|
if (term->ldisc) {
|
|
char abuf[lenof(term->cfg.answerback)], *s, *d;
|
|
for (s = term->cfg.answerback, d = abuf; *s;) {
|
|
char *n;
|
|
char c = ctrlparse(s, &n);
|
|
if (n) {
|
|
*d++ = c;
|
|
s = n;
|
|
} else {
|
|
*d++ = *s++;
|
|
}
|
|
}
|
|
lpage_send(term->ldisc, DEFAULT_CODEPAGE,
|
|
abuf, d - abuf, 0);
|
|
}
|
|
break;
|
|
case '\007': /* BEL: Bell */
|
|
{
|
|
struct beeptime *newbeep;
|
|
unsigned long ticks;
|
|
|
|
ticks = GETTICKCOUNT();
|
|
|
|
if (!term->beep_overloaded) {
|
|
newbeep = snew(struct beeptime);
|
|
newbeep->ticks = ticks;
|
|
newbeep->next = NULL;
|
|
if (!term->beephead)
|
|
term->beephead = newbeep;
|
|
else
|
|
term->beeptail->next = newbeep;
|
|
term->beeptail = newbeep;
|
|
term->nbeeps++;
|
|
}
|
|
|
|
/*
|
|
* Throw out any beeps that happened more than
|
|
* t seconds ago.
|
|
*/
|
|
while (term->beephead &&
|
|
term->beephead->ticks < ticks - term->cfg.bellovl_t) {
|
|
struct beeptime *tmp = term->beephead;
|
|
term->beephead = tmp->next;
|
|
sfree(tmp);
|
|
if (!term->beephead)
|
|
term->beeptail = NULL;
|
|
term->nbeeps--;
|
|
}
|
|
|
|
if (term->cfg.bellovl && term->beep_overloaded &&
|
|
ticks - term->lastbeep >= (unsigned)term->cfg.bellovl_s) {
|
|
/*
|
|
* If we're currently overloaded and the
|
|
* last beep was more than s seconds ago,
|
|
* leave overload mode.
|
|
*/
|
|
term->beep_overloaded = FALSE;
|
|
} else if (term->cfg.bellovl && !term->beep_overloaded &&
|
|
term->nbeeps >= term->cfg.bellovl_n) {
|
|
/*
|
|
* Now, if we have n or more beeps
|
|
* remaining in the queue, go into overload
|
|
* mode.
|
|
*/
|
|
term->beep_overloaded = TRUE;
|
|
}
|
|
term->lastbeep = ticks;
|
|
|
|
/*
|
|
* Perform an actual beep if we're not overloaded.
|
|
*/
|
|
if (!term->cfg.bellovl || !term->beep_overloaded) {
|
|
do_beep(term->frontend, term->cfg.beep);
|
|
|
|
if (term->cfg.beep == BELL_VISUAL) {
|
|
term_schedule_vbell(term, FALSE, 0);
|
|
}
|
|
}
|
|
seen_disp_event(term);
|
|
}
|
|
break;
|
|
case '\b': /* BS: Back space */
|
|
if (term->curs.x == 0 &&
|
|
(term->curs.y == 0 || term->wrap == 0))
|
|
/* do nothing */ ;
|
|
else if (term->curs.x == 0 && term->curs.y > 0)
|
|
term->curs.x = term->cols - 1, term->curs.y--;
|
|
else if (term->wrapnext)
|
|
term->wrapnext = FALSE;
|
|
else
|
|
term->curs.x--;
|
|
seen_disp_event(term);
|
|
break;
|
|
case '\016': /* LS1: Locking-shift one */
|
|
compatibility(VT100);
|
|
term->cset = 1;
|
|
break;
|
|
case '\017': /* LS0: Locking-shift zero */
|
|
compatibility(VT100);
|
|
term->cset = 0;
|
|
break;
|
|
case '\033': /* ESC: Escape */
|
|
if (term->vt52_mode)
|
|
term->termstate = VT52_ESC;
|
|
else {
|
|
compatibility(ANSIMIN);
|
|
term->termstate = SEEN_ESC;
|
|
term->esc_query = FALSE;
|
|
}
|
|
break;
|
|
case '\015': /* CR: Carriage return */
|
|
term->curs.x = 0;
|
|
term->wrapnext = FALSE;
|
|
seen_disp_event(term);
|
|
term->paste_hold = 0;
|
|
if (term->logctx)
|
|
logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
|
|
break;
|
|
case '\014': /* FF: Form feed */
|
|
if (has_compat(SCOANSI)) {
|
|
move(term, 0, 0, 0);
|
|
erase_lots(term, FALSE, FALSE, TRUE);
|
|
term->disptop = 0;
|
|
term->wrapnext = FALSE;
|
|
seen_disp_event(term);
|
|
break;
|
|
}
|
|
case '\013': /* VT: Line tabulation */
|
|
compatibility(VT100);
|
|
case '\012': /* LF: Line feed */
|
|
if (term->curs.y == term->marg_b)
|
|
scroll(term, term->marg_t, term->marg_b, 1, TRUE);
|
|
else if (term->curs.y < term->rows - 1)
|
|
term->curs.y++;
|
|
if (term->cfg.lfhascr)
|
|
term->curs.x = 0;
|
|
term->wrapnext = FALSE;
|
|
seen_disp_event(term);
|
|
term->paste_hold = 0;
|
|
if (term->logctx)
|
|
logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
|
|
break;
|
|
case '\t': /* HT: Character tabulation */
|
|
{
|
|
pos old_curs = term->curs;
|
|
termline *ldata = scrlineptr(term->curs.y);
|
|
|
|
do {
|
|
term->curs.x++;
|
|
} while (term->curs.x < term->cols - 1 &&
|
|
!term->tabs[term->curs.x]);
|
|
|
|
if ((ldata->lattr & LATTR_MODE) != LATTR_NORM) {
|
|
if (term->curs.x >= term->cols / 2)
|
|
term->curs.x = term->cols / 2 - 1;
|
|
} else {
|
|
if (term->curs.x >= term->cols)
|
|
term->curs.x = term->cols - 1;
|
|
}
|
|
|
|
check_selection(term, old_curs, term->curs);
|
|
}
|
|
seen_disp_event(term);
|
|
break;
|
|
}
|
|
} else
|
|
switch (term->termstate) {
|
|
case TOPLEVEL:
|
|
/* Only graphic characters get this far;
|
|
* ctrls are stripped above */
|
|
{
|
|
termline *cline = scrlineptr(term->curs.y);
|
|
int width = 0;
|
|
if (DIRECT_CHAR(c))
|
|
width = 1;
|
|
if (!width)
|
|
width = (term->cfg.cjk_ambig_wide ?
|
|
mk_wcwidth_cjk((wchar_t) c) :
|
|
mk_wcwidth((wchar_t) c));
|
|
|
|
if (term->wrapnext && term->wrap && width > 0) {
|
|
cline->lattr |= LATTR_WRAPPED;
|
|
if (term->curs.y == term->marg_b)
|
|
scroll(term, term->marg_t, term->marg_b, 1, TRUE);
|
|
else if (term->curs.y < term->rows - 1)
|
|
term->curs.y++;
|
|
term->curs.x = 0;
|
|
term->wrapnext = FALSE;
|
|
cline = scrlineptr(term->curs.y);
|
|
}
|
|
if (term->insert && width > 0)
|
|
insch(term, width);
|
|
if (term->selstate != NO_SELECTION) {
|
|
pos cursplus = term->curs;
|
|
incpos(cursplus);
|
|
check_selection(term, term->curs, cursplus);
|
|
}
|
|
if (((c & CSET_MASK) == CSET_ASCII ||
|
|
(c & CSET_MASK) == 0) &&
|
|
term->logctx)
|
|
logtraffic(term->logctx, (unsigned char) c,
|
|
LGTYP_ASCII);
|
|
|
|
switch (width) {
|
|
case 2:
|
|
/*
|
|
* If we're about to display a double-width
|
|
* character starting in the rightmost
|
|
* column, then we do something special
|
|
* instead. We must print a space in the
|
|
* last column of the screen, then wrap;
|
|
* and we also set LATTR_WRAPPED2 which
|
|
* instructs subsequent cut-and-pasting not
|
|
* only to splice this line to the one
|
|
* after it, but to ignore the space in the
|
|
* last character position as well.
|
|
* (Because what was actually output to the
|
|
* terminal was presumably just a sequence
|
|
* of CJK characters, and we don't want a
|
|
* space to be pasted in the middle of
|
|
* those just because they had the
|
|
* misfortune to start in the wrong parity
|
|
* column. xterm concurs.)
|
|
*/
|
|
check_boundary(term, term->curs.x, term->curs.y);
|
|
check_boundary(term, term->curs.x+2, term->curs.y);
|
|
if (term->curs.x == term->cols-1) {
|
|
copy_termchar(cline, term->curs.x,
|
|
&term->erase_char);
|
|
cline->lattr |= LATTR_WRAPPED | LATTR_WRAPPED2;
|
|
if (term->curs.y == term->marg_b)
|
|
scroll(term, term->marg_t, term->marg_b,
|
|
1, TRUE);
|
|
else if (term->curs.y < term->rows - 1)
|
|
term->curs.y++;
|
|
term->curs.x = 0;
|
|
cline = scrlineptr(term->curs.y);
|
|
/* Now we must check_boundary again, of course. */
|
|
check_boundary(term, term->curs.x, term->curs.y);
|
|
check_boundary(term, term->curs.x+2, term->curs.y);
|
|
}
|
|
|
|
/* FULL-TERMCHAR */
|
|
clear_cc(cline, term->curs.x);
|
|
cline->chars[term->curs.x].chr = c;
|
|
cline->chars[term->curs.x].attr = term->curr_attr;
|
|
|
|
term->curs.x++;
|
|
|
|
/* FULL-TERMCHAR */
|
|
clear_cc(cline, term->curs.x);
|
|
cline->chars[term->curs.x].chr = UCSWIDE;
|
|
cline->chars[term->curs.x].attr = term->curr_attr;
|
|
|
|
break;
|
|
case 1:
|
|
check_boundary(term, term->curs.x, term->curs.y);
|
|
check_boundary(term, term->curs.x+1, term->curs.y);
|
|
|
|
/* FULL-TERMCHAR */
|
|
clear_cc(cline, term->curs.x);
|
|
cline->chars[term->curs.x].chr = c;
|
|
cline->chars[term->curs.x].attr = term->curr_attr;
|
|
|
|
break;
|
|
case 0:
|
|
if (term->curs.x > 0) {
|
|
int x = term->curs.x - 1;
|
|
|
|
/* If we're in wrapnext state, the character
|
|
* to combine with is _here_, not to our left. */
|
|
if (term->wrapnext)
|
|
x++;
|
|
|
|
/*
|
|
* If the previous character is
|
|
* UCSWIDE, back up another one.
|
|
*/
|
|
if (cline->chars[x].chr == UCSWIDE) {
|
|
assert(x > 0);
|
|
x--;
|
|
}
|
|
|
|
add_cc(cline, x, c);
|
|
seen_disp_event(term);
|
|
}
|
|
continue;
|
|
default:
|
|
continue;
|
|
}
|
|
term->curs.x++;
|
|
if (term->curs.x == term->cols) {
|
|
term->curs.x--;
|
|
term->wrapnext = TRUE;
|
|
if (term->wrap && term->vt52_mode) {
|
|
cline->lattr |= LATTR_WRAPPED;
|
|
if (term->curs.y == term->marg_b)
|
|
scroll(term, term->marg_t, term->marg_b, 1, TRUE);
|
|
else if (term->curs.y < term->rows - 1)
|
|
term->curs.y++;
|
|
term->curs.x = 0;
|
|
term->wrapnext = FALSE;
|
|
}
|
|
}
|
|
seen_disp_event(term);
|
|
}
|
|
break;
|
|
|
|
case OSC_MAYBE_ST:
|
|
/*
|
|
* This state is virtually identical to SEEN_ESC, with the
|
|
* exception that we have an OSC sequence in the pipeline,
|
|
* and _if_ we see a backslash, we process it.
|
|
*/
|
|
if (c == '\\') {
|
|
do_osc(term);
|
|
term->termstate = TOPLEVEL;
|
|
break;
|
|
}
|
|
/* else fall through */
|
|
case SEEN_ESC:
|
|
if (c >= ' ' && c <= '/') {
|
|
if (term->esc_query)
|
|
term->esc_query = -1;
|
|
else
|
|
term->esc_query = c;
|
|
break;
|
|
}
|
|
term->termstate = TOPLEVEL;
|
|
switch (ANSI(c, term->esc_query)) {
|
|
case '[': /* enter CSI mode */
|
|
term->termstate = SEEN_CSI;
|
|
term->esc_nargs = 1;
|
|
term->esc_args[0] = ARG_DEFAULT;
|
|
term->esc_query = FALSE;
|
|
break;
|
|
case ']': /* OSC: xterm escape sequences */
|
|
/* Compatibility is nasty here, xterm, linux, decterm yuk! */
|
|
compatibility(OTHER);
|
|
term->termstate = SEEN_OSC;
|
|
term->esc_args[0] = 0;
|
|
break;
|
|
case '7': /* DECSC: save cursor */
|
|
compatibility(VT100);
|
|
save_cursor(term, TRUE);
|
|
break;
|
|
case '8': /* DECRC: restore cursor */
|
|
compatibility(VT100);
|
|
save_cursor(term, FALSE);
|
|
seen_disp_event(term);
|
|
break;
|
|
case '=': /* DECKPAM: Keypad application mode */
|
|
compatibility(VT100);
|
|
term->app_keypad_keys = TRUE;
|
|
break;
|
|
case '>': /* DECKPNM: Keypad numeric mode */
|
|
compatibility(VT100);
|
|
term->app_keypad_keys = FALSE;
|
|
break;
|
|
case 'D': /* IND: exactly equivalent to LF */
|
|
compatibility(VT100);
|
|
if (term->curs.y == term->marg_b)
|
|
scroll(term, term->marg_t, term->marg_b, 1, TRUE);
|
|
else if (term->curs.y < term->rows - 1)
|
|
term->curs.y++;
|
|
term->wrapnext = FALSE;
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'E': /* NEL: exactly equivalent to CR-LF */
|
|
compatibility(VT100);
|
|
term->curs.x = 0;
|
|
if (term->curs.y == term->marg_b)
|
|
scroll(term, term->marg_t, term->marg_b, 1, TRUE);
|
|
else if (term->curs.y < term->rows - 1)
|
|
term->curs.y++;
|
|
term->wrapnext = FALSE;
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'M': /* RI: reverse index - backwards LF */
|
|
compatibility(VT100);
|
|
if (term->curs.y == term->marg_t)
|
|
scroll(term, term->marg_t, term->marg_b, -1, TRUE);
|
|
else if (term->curs.y > 0)
|
|
term->curs.y--;
|
|
term->wrapnext = FALSE;
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'Z': /* DECID: terminal type query */
|
|
compatibility(VT100);
|
|
if (term->ldisc)
|
|
ldisc_send(term->ldisc, term->id_string,
|
|
strlen(term->id_string), 0);
|
|
break;
|
|
case 'c': /* RIS: restore power-on settings */
|
|
compatibility(VT100);
|
|
power_on(term, TRUE);
|
|
if (term->ldisc) /* cause ldisc to notice changes */
|
|
ldisc_send(term->ldisc, NULL, 0, 0);
|
|
if (term->reset_132) {
|
|
if (!term->cfg.no_remote_resize)
|
|
request_resize(term->frontend, 80, term->rows);
|
|
term->reset_132 = 0;
|
|
}
|
|
term->disptop = 0;
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'H': /* HTS: set a tab */
|
|
compatibility(VT100);
|
|
term->tabs[term->curs.x] = TRUE;
|
|
break;
|
|
|
|
case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
|
|
compatibility(VT100);
|
|
{
|
|
termline *ldata;
|
|
int i, j;
|
|
pos scrtop, scrbot;
|
|
|
|
for (i = 0; i < term->rows; i++) {
|
|
ldata = scrlineptr(i);
|
|
for (j = 0; j < term->cols; j++) {
|
|
copy_termchar(ldata, j,
|
|
&term->basic_erase_char);
|
|
ldata->chars[j].chr = 'E';
|
|
}
|
|
ldata->lattr = LATTR_NORM;
|
|
}
|
|
term->disptop = 0;
|
|
seen_disp_event(term);
|
|
scrtop.x = scrtop.y = 0;
|
|
scrbot.x = 0;
|
|
scrbot.y = term->rows;
|
|
check_selection(term, scrtop, scrbot);
|
|
}
|
|
break;
|
|
|
|
case ANSI('3', '#'):
|
|
case ANSI('4', '#'):
|
|
case ANSI('5', '#'):
|
|
case ANSI('6', '#'):
|
|
compatibility(VT100);
|
|
{
|
|
int nlattr;
|
|
|
|
switch (ANSI(c, term->esc_query)) {
|
|
case ANSI('3', '#'): /* DECDHL: 2*height, top */
|
|
nlattr = LATTR_TOP;
|
|
break;
|
|
case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
|
|
nlattr = LATTR_BOT;
|
|
break;
|
|
case ANSI('5', '#'): /* DECSWL: normal */
|
|
nlattr = LATTR_NORM;
|
|
break;
|
|
default: /* case ANSI('6', '#'): DECDWL: 2*width */
|
|
nlattr = LATTR_WIDE;
|
|
break;
|
|
}
|
|
scrlineptr(term->curs.y)->lattr = nlattr;
|
|
}
|
|
break;
|
|
/* GZD4: G0 designate 94-set */
|
|
case ANSI('A', '('):
|
|
compatibility(VT100);
|
|
if (!term->cfg.no_remote_charset)
|
|
term->cset_attr[0] = CSET_GBCHR;
|
|
break;
|
|
case ANSI('B', '('):
|
|
compatibility(VT100);
|
|
if (!term->cfg.no_remote_charset)
|
|
term->cset_attr[0] = CSET_ASCII;
|
|
break;
|
|
case ANSI('0', '('):
|
|
compatibility(VT100);
|
|
if (!term->cfg.no_remote_charset)
|
|
term->cset_attr[0] = CSET_LINEDRW;
|
|
break;
|
|
case ANSI('U', '('):
|
|
compatibility(OTHER);
|
|
if (!term->cfg.no_remote_charset)
|
|
term->cset_attr[0] = CSET_SCOACS;
|
|
break;
|
|
/* G1D4: G1-designate 94-set */
|
|
case ANSI('A', ')'):
|
|
compatibility(VT100);
|
|
if (!term->cfg.no_remote_charset)
|
|
term->cset_attr[1] = CSET_GBCHR;
|
|
break;
|
|
case ANSI('B', ')'):
|
|
compatibility(VT100);
|
|
if (!term->cfg.no_remote_charset)
|
|
term->cset_attr[1] = CSET_ASCII;
|
|
break;
|
|
case ANSI('0', ')'):
|
|
compatibility(VT100);
|
|
if (!term->cfg.no_remote_charset)
|
|
term->cset_attr[1] = CSET_LINEDRW;
|
|
break;
|
|
case ANSI('U', ')'):
|
|
compatibility(OTHER);
|
|
if (!term->cfg.no_remote_charset)
|
|
term->cset_attr[1] = CSET_SCOACS;
|
|
break;
|
|
/* DOCS: Designate other coding system */
|
|
case ANSI('8', '%'): /* Old Linux code */
|
|
case ANSI('G', '%'):
|
|
compatibility(OTHER);
|
|
if (!term->cfg.no_remote_charset)
|
|
term->utf = 1;
|
|
break;
|
|
case ANSI('@', '%'):
|
|
compatibility(OTHER);
|
|
if (!term->cfg.no_remote_charset)
|
|
term->utf = 0;
|
|
break;
|
|
}
|
|
break;
|
|
case SEEN_CSI:
|
|
term->termstate = TOPLEVEL; /* default */
|
|
if (isdigit(c)) {
|
|
if (term->esc_nargs <= ARGS_MAX) {
|
|
if (term->esc_args[term->esc_nargs - 1] == ARG_DEFAULT)
|
|
term->esc_args[term->esc_nargs - 1] = 0;
|
|
term->esc_args[term->esc_nargs - 1] =
|
|
10 * term->esc_args[term->esc_nargs - 1] + c - '0';
|
|
}
|
|
term->termstate = SEEN_CSI;
|
|
} else if (c == ';') {
|
|
if (++term->esc_nargs <= ARGS_MAX)
|
|
term->esc_args[term->esc_nargs - 1] = ARG_DEFAULT;
|
|
term->termstate = SEEN_CSI;
|
|
} else if (c < '@') {
|
|
if (term->esc_query)
|
|
term->esc_query = -1;
|
|
else if (c == '?')
|
|
term->esc_query = TRUE;
|
|
else
|
|
term->esc_query = c;
|
|
term->termstate = SEEN_CSI;
|
|
} else
|
|
switch (ANSI(c, term->esc_query)) {
|
|
case 'A': /* CUU: move up N lines */
|
|
move(term, term->curs.x,
|
|
term->curs.y - def(term->esc_args[0], 1), 1);
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'e': /* VPR: move down N lines */
|
|
compatibility(ANSI);
|
|
/* FALLTHROUGH */
|
|
case 'B': /* CUD: Cursor down */
|
|
move(term, term->curs.x,
|
|
term->curs.y + def(term->esc_args[0], 1), 1);
|
|
seen_disp_event(term);
|
|
break;
|
|
case ANSI('c', '>'): /* DA: report xterm version */
|
|
compatibility(OTHER);
|
|
/* this reports xterm version 136 so that VIM can
|
|
use the drag messages from the mouse reporting */
|
|
if (term->ldisc)
|
|
ldisc_send(term->ldisc, "\033[>0;136;0c", 11, 0);
|
|
break;
|
|
case 'a': /* HPR: move right N cols */
|
|
compatibility(ANSI);
|
|
/* FALLTHROUGH */
|
|
case 'C': /* CUF: Cursor right */
|
|
move(term, term->curs.x + def(term->esc_args[0], 1),
|
|
term->curs.y, 1);
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'D': /* CUB: move left N cols */
|
|
move(term, term->curs.x - def(term->esc_args[0], 1),
|
|
term->curs.y, 1);
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'E': /* CNL: move down N lines and CR */
|
|
compatibility(ANSI);
|
|
move(term, 0,
|
|
term->curs.y + def(term->esc_args[0], 1), 1);
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'F': /* CPL: move up N lines and CR */
|
|
compatibility(ANSI);
|
|
move(term, 0,
|
|
term->curs.y - def(term->esc_args[0], 1), 1);
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'G': /* CHA */
|
|
case '`': /* HPA: set horizontal posn */
|
|
compatibility(ANSI);
|
|
move(term, def(term->esc_args[0], 1) - 1,
|
|
term->curs.y, 0);
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'd': /* VPA: set vertical posn */
|
|
compatibility(ANSI);
|
|
move(term, term->curs.x,
|
|
((term->dec_om ? term->marg_t : 0) +
|
|
def(term->esc_args[0], 1) - 1),
|
|
(term->dec_om ? 2 : 0));
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'H': /* CUP */
|
|
case 'f': /* HVP: set horz and vert posns at once */
|
|
if (term->esc_nargs < 2)
|
|
term->esc_args[1] = ARG_DEFAULT;
|
|
move(term, def(term->esc_args[1], 1) - 1,
|
|
((term->dec_om ? term->marg_t : 0) +
|
|
def(term->esc_args[0], 1) - 1),
|
|
(term->dec_om ? 2 : 0));
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'J': /* ED: erase screen or parts of it */
|
|
{
|
|
unsigned int i = def(term->esc_args[0], 0);
|
|
if (i == 3) {
|
|
/* Erase Saved Lines (xterm)
|
|
* This follows Thomas Dickey's xterm. */
|
|
term_clrsb(term);
|
|
} else {
|
|
i++;
|
|
if (i > 3)
|
|
i = 0;
|
|
erase_lots(term, FALSE, !!(i & 2), !!(i & 1));
|
|
}
|
|
}
|
|
term->disptop = 0;
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'K': /* EL: erase line or parts of it */
|
|
{
|
|
unsigned int i = def(term->esc_args[0], 0) + 1;
|
|
if (i > 3)
|
|
i = 0;
|
|
erase_lots(term, TRUE, !!(i & 2), !!(i & 1));
|
|
}
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'L': /* IL: insert lines */
|
|
compatibility(VT102);
|
|
if (term->curs.y <= term->marg_b)
|
|
scroll(term, term->curs.y, term->marg_b,
|
|
-def(term->esc_args[0], 1), FALSE);
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'M': /* DL: delete lines */
|
|
compatibility(VT102);
|
|
if (term->curs.y <= term->marg_b)
|
|
scroll(term, term->curs.y, term->marg_b,
|
|
def(term->esc_args[0], 1),
|
|
TRUE);
|
|
seen_disp_event(term);
|
|
break;
|
|
case '@': /* ICH: insert chars */
|
|
/* XXX VTTEST says this is vt220, vt510 manual says vt102 */
|
|
compatibility(VT102);
|
|
insch(term, def(term->esc_args[0], 1));
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'P': /* DCH: delete chars */
|
|
compatibility(VT102);
|
|
insch(term, -def(term->esc_args[0], 1));
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'c': /* DA: terminal type query */
|
|
compatibility(VT100);
|
|
/* This is the response for a VT102 */
|
|
if (term->ldisc)
|
|
ldisc_send(term->ldisc, term->id_string,
|
|
strlen(term->id_string), 0);
|
|
break;
|
|
case 'n': /* DSR: cursor position query */
|
|
if (term->ldisc) {
|
|
if (term->esc_args[0] == 6) {
|
|
char buf[32];
|
|
sprintf(buf, "\033[%d;%dR", term->curs.y + 1,
|
|
term->curs.x + 1);
|
|
ldisc_send(term->ldisc, buf, strlen(buf), 0);
|
|
} else if (term->esc_args[0] == 5) {
|
|
ldisc_send(term->ldisc, "\033[0n", 4, 0);
|
|
}
|
|
}
|
|
break;
|
|
case 'h': /* SM: toggle modes to high */
|
|
case ANSI_QUE('h'):
|
|
compatibility(VT100);
|
|
{
|
|
int i;
|
|
for (i = 0; i < term->esc_nargs; i++)
|
|
toggle_mode(term, term->esc_args[i],
|
|
term->esc_query, TRUE);
|
|
}
|
|
break;
|
|
case 'i': /* MC: Media copy */
|
|
case ANSI_QUE('i'):
|
|
compatibility(VT100);
|
|
{
|
|
if (term->esc_nargs != 1) break;
|
|
if (term->esc_args[0] == 5 && *term->cfg.printer) {
|
|
term->printing = TRUE;
|
|
term->only_printing = !term->esc_query;
|
|
term->print_state = 0;
|
|
term_print_setup(term);
|
|
} else if (term->esc_args[0] == 4 &&
|
|
term->printing) {
|
|
term_print_finish(term);
|
|
}
|
|
}
|
|
break;
|
|
case 'l': /* RM: toggle modes to low */
|
|
case ANSI_QUE('l'):
|
|
compatibility(VT100);
|
|
{
|
|
int i;
|
|
for (i = 0; i < term->esc_nargs; i++)
|
|
toggle_mode(term, term->esc_args[i],
|
|
term->esc_query, FALSE);
|
|
}
|
|
break;
|
|
case 'g': /* TBC: clear tabs */
|
|
compatibility(VT100);
|
|
if (term->esc_nargs == 1) {
|
|
if (term->esc_args[0] == 0) {
|
|
term->tabs[term->curs.x] = FALSE;
|
|
} else if (term->esc_args[0] == 3) {
|
|
int i;
|
|
for (i = 0; i < term->cols; i++)
|
|
term->tabs[i] = FALSE;
|
|
}
|
|
}
|
|
break;
|
|
case 'r': /* DECSTBM: set scroll margins */
|
|
compatibility(VT100);
|
|
if (term->esc_nargs <= 2) {
|
|
int top, bot;
|
|
top = def(term->esc_args[0], 1) - 1;
|
|
bot = (term->esc_nargs <= 1
|
|
|| term->esc_args[1] == 0 ?
|
|
term->rows :
|
|
def(term->esc_args[1], term->rows)) - 1;
|
|
if (bot >= term->rows)
|
|
bot = term->rows - 1;
|
|
/* VTTEST Bug 9 - if region is less than 2 lines
|
|
* don't change region.
|
|
*/
|
|
if (bot - top > 0) {
|
|
term->marg_t = top;
|
|
term->marg_b = bot;
|
|
term->curs.x = 0;
|
|
/*
|
|
* I used to think the cursor should be
|
|
* placed at the top of the newly marginned
|
|
* area. Apparently not: VMS TPU falls over
|
|
* if so.
|
|
*
|
|
* Well actually it should for
|
|
* Origin mode - RDB
|
|
*/
|
|
term->curs.y = (term->dec_om ?
|
|
term->marg_t : 0);
|
|
seen_disp_event(term);
|
|
}
|
|
}
|
|
break;
|
|
case 'm': /* SGR: set graphics rendition */
|
|
{
|
|
/*
|
|
* A VT100 without the AVO only had one
|
|
* attribute, either underline or
|
|
* reverse video depending on the
|
|
* cursor type, this was selected by
|
|
* CSI 7m.
|
|
*
|
|
* case 2:
|
|
* This is sometimes DIM, eg on the
|
|
* GIGI and Linux
|
|
* case 8:
|
|
* This is sometimes INVIS various ANSI.
|
|
* case 21:
|
|
* This like 22 disables BOLD, DIM and INVIS
|
|
*
|
|
* The ANSI colours appear on any
|
|
* terminal that has colour (obviously)
|
|
* but the interaction between sgr0 and
|
|
* the colours varies but is usually
|
|
* related to the background colour
|
|
* erase item. The interaction between
|
|
* colour attributes and the mono ones
|
|
* is also very implementation
|
|
* dependent.
|
|
*
|
|
* The 39 and 49 attributes are likely
|
|
* to be unimplemented.
|
|
*/
|
|
int i;
|
|
for (i = 0; i < term->esc_nargs; i++) {
|
|
switch (def(term->esc_args[i], 0)) {
|
|
case 0: /* restore defaults */
|
|
term->curr_attr = term->default_attr;
|
|
break;
|
|
case 1: /* enable bold */
|
|
compatibility(VT100AVO);
|
|
term->curr_attr |= ATTR_BOLD;
|
|
break;
|
|
case 21: /* (enable double underline) */
|
|
compatibility(OTHER);
|
|
case 4: /* enable underline */
|
|
compatibility(VT100AVO);
|
|
term->curr_attr |= ATTR_UNDER;
|
|
break;
|
|
case 5: /* enable blink */
|
|
compatibility(VT100AVO);
|
|
term->curr_attr |= ATTR_BLINK;
|
|
break;
|
|
case 6: /* SCO light bkgrd */
|
|
compatibility(SCOANSI);
|
|
term->blink_is_real = FALSE;
|
|
term->curr_attr |= ATTR_BLINK;
|
|
term_schedule_tblink(term);
|
|
break;
|
|
case 7: /* enable reverse video */
|
|
term->curr_attr |= ATTR_REVERSE;
|
|
break;
|
|
case 10: /* SCO acs off */
|
|
compatibility(SCOANSI);
|
|
if (term->cfg.no_remote_charset) break;
|
|
term->sco_acs = 0; break;
|
|
case 11: /* SCO acs on */
|
|
compatibility(SCOANSI);
|
|
if (term->cfg.no_remote_charset) break;
|
|
term->sco_acs = 1; break;
|
|
case 12: /* SCO acs on, |0x80 */
|
|
compatibility(SCOANSI);
|
|
if (term->cfg.no_remote_charset) break;
|
|
term->sco_acs = 2; break;
|
|
case 22: /* disable bold */
|
|
compatibility2(OTHER, VT220);
|
|
term->curr_attr &= ~ATTR_BOLD;
|
|
break;
|
|
case 24: /* disable underline */
|
|
compatibility2(OTHER, VT220);
|
|
term->curr_attr &= ~ATTR_UNDER;
|
|
break;
|
|
case 25: /* disable blink */
|
|
compatibility2(OTHER, VT220);
|
|
term->curr_attr &= ~ATTR_BLINK;
|
|
break;
|
|
case 27: /* disable reverse video */
|
|
compatibility2(OTHER, VT220);
|
|
term->curr_attr &= ~ATTR_REVERSE;
|
|
break;
|
|
case 30:
|
|
case 31:
|
|
case 32:
|
|
case 33:
|
|
case 34:
|
|
case 35:
|
|
case 36:
|
|
case 37:
|
|
/* foreground */
|
|
term->curr_attr &= ~ATTR_FGMASK;
|
|
term->curr_attr |=
|
|
(term->esc_args[i] - 30)<<ATTR_FGSHIFT;
|
|
break;
|
|
case 90:
|
|
case 91:
|
|
case 92:
|
|
case 93:
|
|
case 94:
|
|
case 95:
|
|
case 96:
|
|
case 97:
|
|
/* aixterm-style bright foreground */
|
|
term->curr_attr &= ~ATTR_FGMASK;
|
|
term->curr_attr |=
|
|
((term->esc_args[i] - 90 + 8)
|
|
<< ATTR_FGSHIFT);
|
|
break;
|
|
case 39: /* default-foreground */
|
|
term->curr_attr &= ~ATTR_FGMASK;
|
|
term->curr_attr |= ATTR_DEFFG;
|
|
break;
|
|
case 40:
|
|
case 41:
|
|
case 42:
|
|
case 43:
|
|
case 44:
|
|
case 45:
|
|
case 46:
|
|
case 47:
|
|
/* background */
|
|
term->curr_attr &= ~ATTR_BGMASK;
|
|
term->curr_attr |=
|
|
(term->esc_args[i] - 40)<<ATTR_BGSHIFT;
|
|
break;
|
|
case 100:
|
|
case 101:
|
|
case 102:
|
|
case 103:
|
|
case 104:
|
|
case 105:
|
|
case 106:
|
|
case 107:
|
|
/* aixterm-style bright background */
|
|
term->curr_attr &= ~ATTR_BGMASK;
|
|
term->curr_attr |=
|
|
((term->esc_args[i] - 100 + 8)
|
|
<< ATTR_BGSHIFT);
|
|
break;
|
|
case 49: /* default-background */
|
|
term->curr_attr &= ~ATTR_BGMASK;
|
|
term->curr_attr |= ATTR_DEFBG;
|
|
break;
|
|
case 38: /* xterm 256-colour mode */
|
|
if (i+2 < term->esc_nargs &&
|
|
term->esc_args[i+1] == 5) {
|
|
term->curr_attr &= ~ATTR_FGMASK;
|
|
term->curr_attr |=
|
|
((term->esc_args[i+2] & 0xFF)
|
|
<< ATTR_FGSHIFT);
|
|
i += 2;
|
|
}
|
|
break;
|
|
case 48: /* xterm 256-colour mode */
|
|
if (i+2 < term->esc_nargs &&
|
|
term->esc_args[i+1] == 5) {
|
|
term->curr_attr &= ~ATTR_BGMASK;
|
|
term->curr_attr |=
|
|
((term->esc_args[i+2] & 0xFF)
|
|
<< ATTR_BGSHIFT);
|
|
i += 2;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
set_erase_char(term);
|
|
}
|
|
break;
|
|
case 's': /* save cursor */
|
|
save_cursor(term, TRUE);
|
|
break;
|
|
case 'u': /* restore cursor */
|
|
save_cursor(term, FALSE);
|
|
seen_disp_event(term);
|
|
break;
|
|
case 't': /* DECSLPP: set page size - ie window height */
|
|
/*
|
|
* VT340/VT420 sequence DECSLPP, DEC only allows values
|
|
* 24/25/36/48/72/144 other emulators (eg dtterm) use
|
|
* illegal values (eg first arg 1..9) for window changing
|
|
* and reports.
|
|
*/
|
|
if (term->esc_nargs <= 1
|
|
&& (term->esc_args[0] < 1 ||
|
|
term->esc_args[0] >= 24)) {
|
|
compatibility(VT340TEXT);
|
|
if (!term->cfg.no_remote_resize)
|
|
request_resize(term->frontend, term->cols,
|
|
def(term->esc_args[0], 24));
|
|
deselect(term);
|
|
} else if (term->esc_nargs >= 1 &&
|
|
term->esc_args[0] >= 1 &&
|
|
term->esc_args[0] < 24) {
|
|
compatibility(OTHER);
|
|
|
|
switch (term->esc_args[0]) {
|
|
int x, y, len;
|
|
char buf[80], *p;
|
|
case 1:
|
|
set_iconic(term->frontend, FALSE);
|
|
break;
|
|
case 2:
|
|
set_iconic(term->frontend, TRUE);
|
|
break;
|
|
case 3:
|
|
if (term->esc_nargs >= 3) {
|
|
if (!term->cfg.no_remote_resize)
|
|
move_window(term->frontend,
|
|
def(term->esc_args[1], 0),
|
|
def(term->esc_args[2], 0));
|
|
}
|
|
break;
|
|
case 4:
|
|
/* We should resize the window to a given
|
|
* size in pixels here, but currently our
|
|
* resizing code isn't healthy enough to
|
|
* manage it. */
|
|
break;
|
|
case 5:
|
|
/* move to top */
|
|
set_zorder(term->frontend, TRUE);
|
|
break;
|
|
case 6:
|
|
/* move to bottom */
|
|
set_zorder(term->frontend, FALSE);
|
|
break;
|
|
case 7:
|
|
refresh_window(term->frontend);
|
|
break;
|
|
case 8:
|
|
if (term->esc_nargs >= 3) {
|
|
if (!term->cfg.no_remote_resize)
|
|
request_resize(term->frontend,
|
|
def(term->esc_args[2], term->cfg.width),
|
|
def(term->esc_args[1], term->cfg.height));
|
|
}
|
|
break;
|
|
case 9:
|
|
if (term->esc_nargs >= 2)
|
|
set_zoomed(term->frontend,
|
|
term->esc_args[1] ?
|
|
TRUE : FALSE);
|
|
break;
|
|
case 11:
|
|
if (term->ldisc)
|
|
ldisc_send(term->ldisc,
|
|
is_iconic(term->frontend) ?
|
|
"\033[1t" : "\033[2t", 4, 0);
|
|
break;
|
|
case 13:
|
|
if (term->ldisc) {
|
|
get_window_pos(term->frontend, &x, &y);
|
|
len = sprintf(buf, "\033[3;%d;%dt", x, y);
|
|
ldisc_send(term->ldisc, buf, len, 0);
|
|
}
|
|
break;
|
|
case 14:
|
|
if (term->ldisc) {
|
|
get_window_pixels(term->frontend, &x, &y);
|
|
len = sprintf(buf, "\033[4;%d;%dt", x, y);
|
|
ldisc_send(term->ldisc, buf, len, 0);
|
|
}
|
|
break;
|
|
case 18:
|
|
if (term->ldisc) {
|
|
len = sprintf(buf, "\033[8;%d;%dt",
|
|
term->rows, term->cols);
|
|
ldisc_send(term->ldisc, buf, len, 0);
|
|
}
|
|
break;
|
|
case 19:
|
|
/*
|
|
* Hmmm. Strictly speaking we
|
|
* should return `the size of the
|
|
* screen in characters', but
|
|
* that's not easy: (a) window
|
|
* furniture being what it is it's
|
|
* hard to compute, and (b) in
|
|
* resize-font mode maximising the
|
|
* window wouldn't change the
|
|
* number of characters. *shrug*. I
|
|
* think we'll ignore it for the
|
|
* moment and see if anyone
|
|
* complains, and then ask them
|
|
* what they would like it to do.
|
|
*/
|
|
break;
|
|
case 20:
|
|
if (term->ldisc &&
|
|
term->cfg.remote_qtitle_action != TITLE_NONE) {
|
|
if(term->cfg.remote_qtitle_action == TITLE_REAL)
|
|
p = get_window_title(term->frontend, TRUE);
|
|
else
|
|
p = EMPTY_WINDOW_TITLE;
|
|
len = strlen(p);
|
|
ldisc_send(term->ldisc, "\033]L", 3, 0);
|
|
ldisc_send(term->ldisc, p, len, 0);
|
|
ldisc_send(term->ldisc, "\033\\", 2, 0);
|
|
}
|
|
break;
|
|
case 21:
|
|
if (term->ldisc &&
|
|
term->cfg.remote_qtitle_action != TITLE_NONE) {
|
|
if(term->cfg.remote_qtitle_action == TITLE_REAL)
|
|
p = get_window_title(term->frontend, FALSE);
|
|
else
|
|
p = EMPTY_WINDOW_TITLE;
|
|
len = strlen(p);
|
|
ldisc_send(term->ldisc, "\033]l", 3, 0);
|
|
ldisc_send(term->ldisc, p, len, 0);
|
|
ldisc_send(term->ldisc, "\033\\", 2, 0);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 'S': /* SU: Scroll up */
|
|
compatibility(SCOANSI);
|
|
scroll(term, term->marg_t, term->marg_b,
|
|
def(term->esc_args[0], 1), TRUE);
|
|
term->wrapnext = FALSE;
|
|
seen_disp_event(term);
|
|
break;
|
|
case 'T': /* SD: Scroll down */
|
|
compatibility(SCOANSI);
|
|
scroll(term, term->marg_t, term->marg_b,
|
|
-def(term->esc_args[0], 1), TRUE);
|
|
term->wrapnext = FALSE;
|
|
seen_disp_event(term);
|
|
break;
|
|
case ANSI('|', '*'): /* DECSNLS */
|
|
/*
|
|
* Set number of lines on screen
|
|
* VT420 uses VGA like hardware and can
|
|
* support any size in reasonable range
|
|
* (24..49 AIUI) with no default specified.
|
|
*/
|
|
compatibility(VT420);
|
|
if (term->esc_nargs == 1 && term->esc_args[0] > 0) {
|
|
if (!term->cfg.no_remote_resize)
|
|
request_resize(term->frontend, term->cols,
|
|
def(term->esc_args[0],
|
|
term->cfg.height));
|
|
deselect(term);
|
|
}
|
|
break;
|
|
case ANSI('|', '$'): /* DECSCPP */
|
|
/*
|
|
* Set number of columns per page
|
|
* Docs imply range is only 80 or 132, but
|
|
* I'll allow any.
|
|
*/
|
|
compatibility(VT340TEXT);
|
|
if (term->esc_nargs <= 1) {
|
|
if (!term->cfg.no_remote_resize)
|
|
request_resize(term->frontend,
|
|
def(term->esc_args[0],
|
|
term->cfg.width), term->rows);
|
|
deselect(term);
|
|
}
|
|
break;
|
|
case 'X': /* ECH: write N spaces w/o moving cursor */
|
|
/* XXX VTTEST says this is vt220, vt510 manual
|
|
* says vt100 */
|
|
compatibility(ANSIMIN);
|
|
{
|
|
int n = def(term->esc_args[0], 1);
|
|
pos cursplus;
|
|
int p = term->curs.x;
|
|
termline *cline = scrlineptr(term->curs.y);
|
|
|
|
if (n > term->cols - term->curs.x)
|
|
n = term->cols - term->curs.x;
|
|
cursplus = term->curs;
|
|
cursplus.x += n;
|
|
check_boundary(term, term->curs.x, term->curs.y);
|
|
check_boundary(term, term->curs.x+n, term->curs.y);
|
|
check_selection(term, term->curs, cursplus);
|
|
while (n--)
|
|
copy_termchar(cline, p++,
|
|
&term->erase_char);
|
|
seen_disp_event(term);
|
|
}
|
|
break;
|
|
case 'x': /* DECREQTPARM: report terminal characteristics */
|
|
compatibility(VT100);
|
|
if (term->ldisc) {
|
|
char buf[32];
|
|
int i = def(term->esc_args[0], 0);
|
|
if (i == 0 || i == 1) {
|
|
strcpy(buf, "\033[2;1;1;112;112;1;0x");
|
|
buf[2] += i;
|
|
ldisc_send(term->ldisc, buf, 20, 0);
|
|
}
|
|
}
|
|
break;
|
|
case 'Z': /* CBT */
|
|
compatibility(OTHER);
|
|
{
|
|
int i = def(term->esc_args[0], 1);
|
|
pos old_curs = term->curs;
|
|
|
|
for(;i>0 && term->curs.x>0; i--) {
|
|
do {
|
|
term->curs.x--;
|
|
} while (term->curs.x >0 &&
|
|
!term->tabs[term->curs.x]);
|
|
}
|
|
check_selection(term, old_curs, term->curs);
|
|
}
|
|
break;
|
|
case ANSI('c', '='): /* Hide or Show Cursor */
|
|
compatibility(SCOANSI);
|
|
switch(term->esc_args[0]) {
|
|
case 0: /* hide cursor */
|
|
term->cursor_on = FALSE;
|
|
break;
|
|
case 1: /* restore cursor */
|
|
term->big_cursor = FALSE;
|
|
term->cursor_on = TRUE;
|
|
break;
|
|
case 2: /* block cursor */
|
|
term->big_cursor = TRUE;
|
|
term->cursor_on = TRUE;
|
|
break;
|
|
}
|
|
break;
|
|
case ANSI('C', '='):
|
|
/*
|
|
* set cursor start on scanline esc_args[0] and
|
|
* end on scanline esc_args[1].If you set
|
|
* the bottom scan line to a value less than
|
|
* the top scan line, the cursor will disappear.
|
|
*/
|
|
compatibility(SCOANSI);
|
|
if (term->esc_nargs >= 2) {
|
|
if (term->esc_args[0] > term->esc_args[1])
|
|
term->cursor_on = FALSE;
|
|
else
|
|
term->cursor_on = TRUE;
|
|
}
|
|
break;
|
|
case ANSI('D', '='):
|
|
compatibility(SCOANSI);
|
|
term->blink_is_real = FALSE;
|
|
term_schedule_tblink(term);
|
|
if (term->esc_args[0]>=1)
|
|
term->curr_attr |= ATTR_BLINK;
|
|
else
|
|
term->curr_attr &= ~ATTR_BLINK;
|
|
break;
|
|
case ANSI('E', '='):
|
|
compatibility(SCOANSI);
|
|
term->blink_is_real = (term->esc_args[0] >= 1);
|
|
term_schedule_tblink(term);
|
|
break;
|
|
case ANSI('F', '='): /* set normal foreground */
|
|
compatibility(SCOANSI);
|
|
if (term->esc_args[0] >= 0 && term->esc_args[0] < 16) {
|
|
long colour =
|
|
(sco2ansicolour[term->esc_args[0] & 0x7] |
|
|
(term->esc_args[0] & 0x8)) <<
|
|
ATTR_FGSHIFT;
|
|
term->curr_attr &= ~ATTR_FGMASK;
|
|
term->curr_attr |= colour;
|
|
term->default_attr &= ~ATTR_FGMASK;
|
|
term->default_attr |= colour;
|
|
set_erase_char(term);
|
|
}
|
|
break;
|
|
case ANSI('G', '='): /* set normal background */
|
|
compatibility(SCOANSI);
|
|
if (term->esc_args[0] >= 0 && term->esc_args[0] < 16) {
|
|
long colour =
|
|
(sco2ansicolour[term->esc_args[0] & 0x7] |
|
|
(term->esc_args[0] & 0x8)) <<
|
|
ATTR_BGSHIFT;
|
|
term->curr_attr &= ~ATTR_BGMASK;
|
|
term->curr_attr |= colour;
|
|
term->default_attr &= ~ATTR_BGMASK;
|
|
term->default_attr |= colour;
|
|
set_erase_char(term);
|
|
}
|
|
break;
|
|
case ANSI('L', '='):
|
|
compatibility(SCOANSI);
|
|
term->use_bce = (term->esc_args[0] <= 0);
|
|
set_erase_char(term);
|
|
break;
|
|
case ANSI('p', '"'): /* DECSCL: set compat level */
|
|
/*
|
|
* Allow the host to make this emulator a
|
|
* 'perfect' VT102. This first appeared in
|
|
* the VT220, but we do need to get back to
|
|
* PuTTY mode so I won't check it.
|
|
*
|
|
* The arg in 40..42,50 are a PuTTY extension.
|
|
* The 2nd arg, 8bit vs 7bit is not checked.
|
|
*
|
|
* Setting VT102 mode should also change
|
|
* the Fkeys to generate PF* codes as a
|
|
* real VT102 has no Fkeys. The VT220 does
|
|
* this, F11..F13 become ESC,BS,LF other
|
|
* Fkeys send nothing.
|
|
*
|
|
* Note ESC c will NOT change this!
|
|
*/
|
|
|
|
switch (term->esc_args[0]) {
|
|
case 61:
|
|
term->compatibility_level &= ~TM_VTXXX;
|
|
term->compatibility_level |= TM_VT102;
|
|
break;
|
|
case 62:
|
|
term->compatibility_level &= ~TM_VTXXX;
|
|
term->compatibility_level |= TM_VT220;
|
|
break;
|
|
|
|
default:
|
|
if (term->esc_args[0] > 60 &&
|
|
term->esc_args[0] < 70)
|
|
term->compatibility_level |= TM_VTXXX;
|
|
break;
|
|
|
|
case 40:
|
|
term->compatibility_level &= TM_VTXXX;
|
|
break;
|
|
case 41:
|
|
term->compatibility_level = TM_PUTTY;
|
|
break;
|
|
case 42:
|
|
term->compatibility_level = TM_SCOANSI;
|
|
break;
|
|
|
|
case ARG_DEFAULT:
|
|
term->compatibility_level = TM_PUTTY;
|
|
break;
|
|
case 50:
|
|
break;
|
|
}
|
|
|
|
/* Change the response to CSI c */
|
|
if (term->esc_args[0] == 50) {
|
|
int i;
|
|
char lbuf[64];
|
|
strcpy(term->id_string, "\033[?");
|
|
for (i = 1; i < term->esc_nargs; i++) {
|
|
if (i != 1)
|
|
strcat(term->id_string, ";");
|
|
sprintf(lbuf, "%d", term->esc_args[i]);
|
|
strcat(term->id_string, lbuf);
|
|
}
|
|
strcat(term->id_string, "c");
|
|
}
|
|
#if 0
|
|
/* Is this a good idea ?
|
|
* Well we should do a soft reset at this point ...
|
|
*/
|
|
if (!has_compat(VT420) && has_compat(VT100)) {
|
|
if (!term->cfg.no_remote_resize) {
|
|
if (term->reset_132)
|
|
request_resize(132, 24);
|
|
else
|
|
request_resize(80, 24);
|
|
}
|
|
}
|
|
#endif
|
|
break;
|
|
}
|
|
break;
|
|
case SEEN_OSC:
|
|
term->osc_w = FALSE;
|
|
switch (c) {
|
|
case 'P': /* Linux palette sequence */
|
|
term->termstate = SEEN_OSC_P;
|
|
term->osc_strlen = 0;
|
|
break;
|
|
case 'R': /* Linux palette reset */
|
|
palette_reset(term->frontend);
|
|
term_invalidate(term);
|
|
term->termstate = TOPLEVEL;
|
|
break;
|
|
case 'W': /* word-set */
|
|
term->termstate = SEEN_OSC_W;
|
|
term->osc_w = TRUE;
|
|
break;
|
|
case '0':
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
case '8':
|
|
case '9':
|
|
term->esc_args[0] = 10 * term->esc_args[0] + c - '0';
|
|
break;
|
|
case 'L':
|
|
/*
|
|
* Grotty hack to support xterm and DECterm title
|
|
* sequences concurrently.
|
|
*/
|
|
if (term->esc_args[0] == 2) {
|
|
term->esc_args[0] = 1;
|
|
break;
|
|
}
|
|
/* else fall through */
|
|
default:
|
|
term->termstate = OSC_STRING;
|
|
term->osc_strlen = 0;
|
|
}
|
|
break;
|
|
case OSC_STRING:
|
|
/*
|
|
* This OSC stuff is EVIL. It takes just one character to get into
|
|
* sysline mode and it's not initially obvious how to get out.
|
|
* So I've added CR and LF as string aborts.
|
|
* This shouldn't effect compatibility as I believe embedded
|
|
* control characters are supposed to be interpreted (maybe?)
|
|
* and they don't display anything useful anyway.
|
|
*
|
|
* -- RDB
|
|
*/
|
|
if (c == '\012' || c == '\015') {
|
|
term->termstate = TOPLEVEL;
|
|
} else if (c == 0234 || c == '\007') {
|
|
/*
|
|
* These characters terminate the string; ST and BEL
|
|
* terminate the sequence and trigger instant
|
|
* processing of it, whereas ESC goes back to SEEN_ESC
|
|
* mode unless it is followed by \, in which case it is
|
|
* synonymous with ST in the first place.
|
|
*/
|
|
do_osc(term);
|
|
term->termstate = TOPLEVEL;
|
|
} else if (c == '\033')
|
|
term->termstate = OSC_MAYBE_ST;
|
|
else if (term->osc_strlen < OSC_STR_MAX)
|
|
term->osc_string[term->osc_strlen++] = (char)c;
|
|
break;
|
|
case SEEN_OSC_P:
|
|
{
|
|
int max = (term->osc_strlen == 0 ? 21 : 15);
|
|
int val;
|
|
if ((int)c >= '0' && (int)c <= '9')
|
|
val = c - '0';
|
|
else if ((int)c >= 'A' && (int)c <= 'A' + max - 10)
|
|
val = c - 'A' + 10;
|
|
else if ((int)c >= 'a' && (int)c <= 'a' + max - 10)
|
|
val = c - 'a' + 10;
|
|
else {
|
|
term->termstate = TOPLEVEL;
|
|
break;
|
|
}
|
|
term->osc_string[term->osc_strlen++] = val;
|
|
if (term->osc_strlen >= 7) {
|
|
palette_set(term->frontend, term->osc_string[0],
|
|
term->osc_string[1] * 16 + term->osc_string[2],
|
|
term->osc_string[3] * 16 + term->osc_string[4],
|
|
term->osc_string[5] * 16 + term->osc_string[6]);
|
|
term_invalidate(term);
|
|
term->termstate = TOPLEVEL;
|
|
}
|
|
}
|
|
break;
|
|
case SEEN_OSC_W:
|
|
switch (c) {
|
|
case '0':
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
case '8':
|
|
case '9':
|
|
term->esc_args[0] = 10 * term->esc_args[0] + c - '0';
|
|
break;
|
|
default:
|
|
term->termstate = OSC_STRING;
|
|
term->osc_strlen = 0;
|
|
}
|
|
break;
|
|
case VT52_ESC:
|
|
term->termstate = TOPLEVEL;
|
|
seen_disp_event(term);
|
|
switch (c) {
|
|
case 'A':
|
|
move(term, term->curs.x, term->curs.y - 1, 1);
|
|
break;
|
|
case 'B':
|
|
move(term, term->curs.x, term->curs.y + 1, 1);
|
|
break;
|
|
case 'C':
|
|
move(term, term->curs.x + 1, term->curs.y, 1);
|
|
break;
|
|
case 'D':
|
|
move(term, term->curs.x - 1, term->curs.y, 1);
|
|
break;
|
|
/*
|
|
* From the VT100 Manual
|
|
* NOTE: The special graphics characters in the VT100
|
|
* are different from those in the VT52
|
|
*
|
|
* From VT102 manual:
|
|
* 137 _ Blank - Same
|
|
* 140 ` Reserved - Humm.
|
|
* 141 a Solid rectangle - Similar
|
|
* 142 b 1/ - Top half of fraction for the
|
|
* 143 c 3/ - subscript numbers below.
|
|
* 144 d 5/
|
|
* 145 e 7/
|
|
* 146 f Degrees - Same
|
|
* 147 g Plus or minus - Same
|
|
* 150 h Right arrow
|
|
* 151 i Ellipsis (dots)
|
|
* 152 j Divide by
|
|
* 153 k Down arrow
|
|
* 154 l Bar at scan 0
|
|
* 155 m Bar at scan 1
|
|
* 156 n Bar at scan 2
|
|
* 157 o Bar at scan 3 - Similar
|
|
* 160 p Bar at scan 4 - Similar
|
|
* 161 q Bar at scan 5 - Similar
|
|
* 162 r Bar at scan 6 - Same
|
|
* 163 s Bar at scan 7 - Similar
|
|
* 164 t Subscript 0
|
|
* 165 u Subscript 1
|
|
* 166 v Subscript 2
|
|
* 167 w Subscript 3
|
|
* 170 x Subscript 4
|
|
* 171 y Subscript 5
|
|
* 172 z Subscript 6
|
|
* 173 { Subscript 7
|
|
* 174 | Subscript 8
|
|
* 175 } Subscript 9
|
|
* 176 ~ Paragraph
|
|
*
|
|
*/
|
|
case 'F':
|
|
term->cset_attr[term->cset = 0] = CSET_LINEDRW;
|
|
break;
|
|
case 'G':
|
|
term->cset_attr[term->cset = 0] = CSET_ASCII;
|
|
break;
|
|
case 'H':
|
|
move(term, 0, 0, 0);
|
|
break;
|
|
case 'I':
|
|
if (term->curs.y == 0)
|
|
scroll(term, 0, term->rows - 1, -1, TRUE);
|
|
else if (term->curs.y > 0)
|
|
term->curs.y--;
|
|
term->wrapnext = FALSE;
|
|
break;
|
|
case 'J':
|
|
erase_lots(term, FALSE, FALSE, TRUE);
|
|
term->disptop = 0;
|
|
break;
|
|
case 'K':
|
|
erase_lots(term, TRUE, FALSE, TRUE);
|
|
break;
|
|
#if 0
|
|
case 'V':
|
|
/* XXX Print cursor line */
|
|
break;
|
|
case 'W':
|
|
/* XXX Start controller mode */
|
|
break;
|
|
case 'X':
|
|
/* XXX Stop controller mode */
|
|
break;
|
|
#endif
|
|
case 'Y':
|
|
term->termstate = VT52_Y1;
|
|
break;
|
|
case 'Z':
|
|
if (term->ldisc)
|
|
ldisc_send(term->ldisc, "\033/Z", 3, 0);
|
|
break;
|
|
case '=':
|
|
term->app_keypad_keys = TRUE;
|
|
break;
|
|
case '>':
|
|
term->app_keypad_keys = FALSE;
|
|
break;
|
|
case '<':
|
|
/* XXX This should switch to VT100 mode not current or default
|
|
* VT mode. But this will only have effect in a VT220+
|
|
* emulation.
|
|
*/
|
|
term->vt52_mode = FALSE;
|
|
term->blink_is_real = term->cfg.blinktext;
|
|
term_schedule_tblink(term);
|
|
break;
|
|
#if 0
|
|
case '^':
|
|
/* XXX Enter auto print mode */
|
|
break;
|
|
case '_':
|
|
/* XXX Exit auto print mode */
|
|
break;
|
|
case ']':
|
|
/* XXX Print screen */
|
|
break;
|
|
#endif
|
|
|
|
#ifdef VT52_PLUS
|
|
case 'E':
|
|
/* compatibility(ATARI) */
|
|
move(term, 0, 0, 0);
|
|
erase_lots(term, FALSE, FALSE, TRUE);
|
|
term->disptop = 0;
|
|
break;
|
|
case 'L':
|
|
/* compatibility(ATARI) */
|
|
if (term->curs.y <= term->marg_b)
|
|
scroll(term, term->curs.y, term->marg_b, -1, FALSE);
|
|
break;
|
|
case 'M':
|
|
/* compatibility(ATARI) */
|
|
if (term->curs.y <= term->marg_b)
|
|
scroll(term, term->curs.y, term->marg_b, 1, TRUE);
|
|
break;
|
|
case 'b':
|
|
/* compatibility(ATARI) */
|
|
term->termstate = VT52_FG;
|
|
break;
|
|
case 'c':
|
|
/* compatibility(ATARI) */
|
|
term->termstate = VT52_BG;
|
|
break;
|
|
case 'd':
|
|
/* compatibility(ATARI) */
|
|
erase_lots(term, FALSE, TRUE, FALSE);
|
|
term->disptop = 0;
|
|
break;
|
|
case 'e':
|
|
/* compatibility(ATARI) */
|
|
term->cursor_on = TRUE;
|
|
break;
|
|
case 'f':
|
|
/* compatibility(ATARI) */
|
|
term->cursor_on = FALSE;
|
|
break;
|
|
/* case 'j': Save cursor position - broken on ST */
|
|
/* case 'k': Restore cursor position */
|
|
case 'l':
|
|
/* compatibility(ATARI) */
|
|
erase_lots(term, TRUE, TRUE, TRUE);
|
|
term->curs.x = 0;
|
|
term->wrapnext = FALSE;
|
|
break;
|
|
case 'o':
|
|
/* compatibility(ATARI) */
|
|
erase_lots(term, TRUE, TRUE, FALSE);
|
|
break;
|
|
case 'p':
|
|
/* compatibility(ATARI) */
|
|
term->curr_attr |= ATTR_REVERSE;
|
|
break;
|
|
case 'q':
|
|
/* compatibility(ATARI) */
|
|
term->curr_attr &= ~ATTR_REVERSE;
|
|
break;
|
|
case 'v': /* wrap Autowrap on - Wyse style */
|
|
/* compatibility(ATARI) */
|
|
term->wrap = 1;
|
|
break;
|
|
case 'w': /* Autowrap off */
|
|
/* compatibility(ATARI) */
|
|
term->wrap = 0;
|
|
break;
|
|
|
|
case 'R':
|
|
/* compatibility(OTHER) */
|
|
term->vt52_bold = FALSE;
|
|
term->curr_attr = ATTR_DEFAULT;
|
|
set_erase_char(term);
|
|
break;
|
|
case 'S':
|
|
/* compatibility(VI50) */
|
|
term->curr_attr |= ATTR_UNDER;
|
|
break;
|
|
case 'W':
|
|
/* compatibility(VI50) */
|
|
term->curr_attr &= ~ATTR_UNDER;
|
|
break;
|
|
case 'U':
|
|
/* compatibility(VI50) */
|
|
term->vt52_bold = TRUE;
|
|
term->curr_attr |= ATTR_BOLD;
|
|
break;
|
|
case 'T':
|
|
/* compatibility(VI50) */
|
|
term->vt52_bold = FALSE;
|
|
term->curr_attr &= ~ATTR_BOLD;
|
|
break;
|
|
#endif
|
|
}
|
|
break;
|
|
case VT52_Y1:
|
|
term->termstate = VT52_Y2;
|
|
move(term, term->curs.x, c - ' ', 0);
|
|
break;
|
|
case VT52_Y2:
|
|
term->termstate = TOPLEVEL;
|
|
move(term, c - ' ', term->curs.y, 0);
|
|
break;
|
|
|
|
#ifdef VT52_PLUS
|
|
case VT52_FG:
|
|
term->termstate = TOPLEVEL;
|
|
term->curr_attr &= ~ATTR_FGMASK;
|
|
term->curr_attr &= ~ATTR_BOLD;
|
|
term->curr_attr |= (c & 0xF) << ATTR_FGSHIFT;
|
|
set_erase_char(term);
|
|
break;
|
|
case VT52_BG:
|
|
term->termstate = TOPLEVEL;
|
|
term->curr_attr &= ~ATTR_BGMASK;
|
|
term->curr_attr &= ~ATTR_BLINK;
|
|
term->curr_attr |= (c & 0xF) << ATTR_BGSHIFT;
|
|
set_erase_char(term);
|
|
break;
|
|
#endif
|
|
default: break; /* placate gcc warning about enum use */
|
|
}
|
|
if (term->selstate != NO_SELECTION) {
|
|
pos cursplus = term->curs;
|
|
incpos(cursplus);
|
|
check_selection(term, term->curs, cursplus);
|
|
}
|
|
}
|
|
|
|
term_print_flush(term);
|
|
if (term->cfg.logflush)
|
|
logflush(term->logctx);
|
|
}
|
|
|
|
/*
|
|
* To prevent having to run the reasonably tricky bidi algorithm
|
|
* too many times, we maintain a cache of the last lineful of data
|
|
* fed to the algorithm on each line of the display.
|
|
*/
|
|
static int term_bidi_cache_hit(Terminal *term, int line,
|
|
termchar *lbefore, int width)
|
|
{
|
|
int i;
|
|
|
|
if (!term->pre_bidi_cache)
|
|
return FALSE; /* cache doesn't even exist yet! */
|
|
|
|
if (line >= term->bidi_cache_size)
|
|
return FALSE; /* cache doesn't have this many lines */
|
|
|
|
if (!term->pre_bidi_cache[line].chars)
|
|
return FALSE; /* cache doesn't contain _this_ line */
|
|
|
|
if (term->pre_bidi_cache[line].width != width)
|
|
return FALSE; /* line is wrong width */
|
|
|
|
for (i = 0; i < width; i++)
|
|
if (!termchars_equal(term->pre_bidi_cache[line].chars+i, lbefore+i))
|
|
return FALSE; /* line doesn't match cache */
|
|
|
|
return TRUE; /* it didn't match. */
|
|
}
|
|
|
|
static void term_bidi_cache_store(Terminal *term, int line, termchar *lbefore,
|
|
termchar *lafter, bidi_char *wcTo,
|
|
int width, int size)
|
|
{
|
|
int i;
|
|
|
|
if (!term->pre_bidi_cache || term->bidi_cache_size <= line) {
|
|
int j = term->bidi_cache_size;
|
|
term->bidi_cache_size = line+1;
|
|
term->pre_bidi_cache = sresize(term->pre_bidi_cache,
|
|
term->bidi_cache_size,
|
|
struct bidi_cache_entry);
|
|
term->post_bidi_cache = sresize(term->post_bidi_cache,
|
|
term->bidi_cache_size,
|
|
struct bidi_cache_entry);
|
|
while (j < term->bidi_cache_size) {
|
|
term->pre_bidi_cache[j].chars =
|
|
term->post_bidi_cache[j].chars = NULL;
|
|
term->pre_bidi_cache[j].width =
|
|
term->post_bidi_cache[j].width = -1;
|
|
term->pre_bidi_cache[j].forward =
|
|
term->post_bidi_cache[j].forward = NULL;
|
|
term->pre_bidi_cache[j].backward =
|
|
term->post_bidi_cache[j].backward = NULL;
|
|
j++;
|
|
}
|
|
}
|
|
|
|
sfree(term->pre_bidi_cache[line].chars);
|
|
sfree(term->post_bidi_cache[line].chars);
|
|
sfree(term->post_bidi_cache[line].forward);
|
|
sfree(term->post_bidi_cache[line].backward);
|
|
|
|
term->pre_bidi_cache[line].width = width;
|
|
term->pre_bidi_cache[line].chars = snewn(size, termchar);
|
|
term->post_bidi_cache[line].width = width;
|
|
term->post_bidi_cache[line].chars = snewn(size, termchar);
|
|
term->post_bidi_cache[line].forward = snewn(width, int);
|
|
term->post_bidi_cache[line].backward = snewn(width, int);
|
|
|
|
memcpy(term->pre_bidi_cache[line].chars, lbefore, size * TSIZE);
|
|
memcpy(term->post_bidi_cache[line].chars, lafter, size * TSIZE);
|
|
memset(term->post_bidi_cache[line].forward, 0, width * sizeof(int));
|
|
memset(term->post_bidi_cache[line].backward, 0, width * sizeof(int));
|
|
|
|
for (i = 0; i < width; i++) {
|
|
int p = wcTo[i].index;
|
|
|
|
assert(0 <= p && p < width);
|
|
|
|
term->post_bidi_cache[line].backward[i] = p;
|
|
term->post_bidi_cache[line].forward[p] = i;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Prepare the bidi information for a screen line. Returns the
|
|
* transformed list of termchars, or NULL if no transformation at
|
|
* all took place (because bidi is disabled). If return was
|
|
* non-NULL, auxiliary information such as the forward and reverse
|
|
* mappings of permutation position are available in
|
|
* term->post_bidi_cache[scr_y].*.
|
|
*/
|
|
static termchar *term_bidi_line(Terminal *term, struct termline *ldata,
|
|
int scr_y)
|
|
{
|
|
termchar *lchars;
|
|
int it;
|
|
|
|
/* Do Arabic shaping and bidi. */
|
|
if(!term->cfg.bidi || !term->cfg.arabicshaping) {
|
|
|
|
if (!term_bidi_cache_hit(term, scr_y, ldata->chars, term->cols)) {
|
|
|
|
if (term->wcFromTo_size < term->cols) {
|
|
term->wcFromTo_size = term->cols;
|
|
term->wcFrom = sresize(term->wcFrom, term->wcFromTo_size,
|
|
bidi_char);
|
|
term->wcTo = sresize(term->wcTo, term->wcFromTo_size,
|
|
bidi_char);
|
|
}
|
|
|
|
for(it=0; it<term->cols ; it++)
|
|
{
|
|
unsigned long uc = (ldata->chars[it].chr);
|
|
|
|
switch (uc & CSET_MASK) {
|
|
case CSET_LINEDRW:
|
|
if (!term->cfg.rawcnp) {
|
|
uc = term->ucsdata->unitab_xterm[uc & 0xFF];
|
|
break;
|
|
}
|
|
case CSET_ASCII:
|
|
uc = term->ucsdata->unitab_line[uc & 0xFF];
|
|
break;
|
|
case CSET_SCOACS:
|
|
uc = term->ucsdata->unitab_scoacs[uc&0xFF];
|
|
break;
|
|
}
|
|
switch (uc & CSET_MASK) {
|
|
case CSET_ACP:
|
|
uc = term->ucsdata->unitab_font[uc & 0xFF];
|
|
break;
|
|
case CSET_OEMCP:
|
|
uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
|
|
break;
|
|
}
|
|
|
|
term->wcFrom[it].origwc = term->wcFrom[it].wc =
|
|
(wchar_t)uc;
|
|
term->wcFrom[it].index = it;
|
|
}
|
|
|
|
if(!term->cfg.bidi)
|
|
do_bidi(term->wcFrom, term->cols);
|
|
|
|
/* this is saved iff done from inside the shaping */
|
|
if(!term->cfg.bidi && term->cfg.arabicshaping)
|
|
for(it=0; it<term->cols; it++)
|
|
term->wcTo[it] = term->wcFrom[it];
|
|
|
|
if(!term->cfg.arabicshaping)
|
|
do_shape(term->wcFrom, term->wcTo, term->cols);
|
|
|
|
if (term->ltemp_size < ldata->size) {
|
|
term->ltemp_size = ldata->size;
|
|
term->ltemp = sresize(term->ltemp, term->ltemp_size,
|
|
termchar);
|
|
}
|
|
|
|
memcpy(term->ltemp, ldata->chars, ldata->size * TSIZE);
|
|
|
|
for(it=0; it<term->cols ; it++)
|
|
{
|
|
term->ltemp[it] = ldata->chars[term->wcTo[it].index];
|
|
if (term->ltemp[it].cc_next)
|
|
term->ltemp[it].cc_next -=
|
|
it - term->wcTo[it].index;
|
|
|
|
if (term->wcTo[it].origwc != term->wcTo[it].wc)
|
|
term->ltemp[it].chr = term->wcTo[it].wc;
|
|
}
|
|
term_bidi_cache_store(term, scr_y, ldata->chars,
|
|
term->ltemp, term->wcTo,
|
|
term->cols, ldata->size);
|
|
|
|
lchars = term->ltemp;
|
|
} else {
|
|
lchars = term->post_bidi_cache[scr_y].chars;
|
|
}
|
|
} else {
|
|
lchars = NULL;
|
|
}
|
|
|
|
return lchars;
|
|
}
|
|
|
|
/*
|
|
* Given a context, update the window. Out of paranoia, we don't
|
|
* allow WM_PAINT responses to do scrolling optimisations.
|
|
*/
|
|
static void do_paint(Terminal *term, Context ctx, int may_optimise)
|
|
{
|
|
int i, j, our_curs_y, our_curs_x;
|
|
int rv, cursor;
|
|
pos scrpos;
|
|
wchar_t *ch;
|
|
int chlen;
|
|
#ifdef OPTIMISE_SCROLL
|
|
struct scrollregion *sr;
|
|
#endif /* OPTIMISE_SCROLL */
|
|
termchar *newline;
|
|
|
|
chlen = 1024;
|
|
ch = snewn(chlen, wchar_t);
|
|
|
|
newline = snewn(term->cols, termchar);
|
|
|
|
rv = (!term->rvideo ^ !term->in_vbell ? ATTR_REVERSE : 0);
|
|
|
|
/* Depends on:
|
|
* screen array, disptop, scrtop,
|
|
* selection, rv,
|
|
* cfg.blinkpc, blink_is_real, tblinker,
|
|
* curs.y, curs.x, cblinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
|
|
*/
|
|
|
|
/* Has the cursor position or type changed ? */
|
|
if (term->cursor_on) {
|
|
if (term->has_focus) {
|
|
if (term->cblinker || !term->cfg.blink_cur)
|
|
cursor = TATTR_ACTCURS;
|
|
else
|
|
cursor = 0;
|
|
} else
|
|
cursor = TATTR_PASCURS;
|
|
if (term->wrapnext)
|
|
cursor |= TATTR_RIGHTCURS;
|
|
} else
|
|
cursor = 0;
|
|
our_curs_y = term->curs.y - term->disptop;
|
|
{
|
|
/*
|
|
* Adjust the cursor position:
|
|
* - for bidi
|
|
* - in the case where it's resting on the right-hand half
|
|
* of a CJK wide character. xterm's behaviour here,
|
|
* which seems adequate to me, is to display the cursor
|
|
* covering the _whole_ character, exactly as if it were
|
|
* one space to the left.
|
|
*/
|
|
termline *ldata = lineptr(term->curs.y);
|
|
termchar *lchars;
|
|
|
|
our_curs_x = term->curs.x;
|
|
|
|
if ( (lchars = term_bidi_line(term, ldata, our_curs_y)) != NULL) {
|
|
our_curs_x = term->post_bidi_cache[our_curs_y].forward[our_curs_x];
|
|
} else
|
|
lchars = ldata->chars;
|
|
|
|
if (our_curs_x > 0 &&
|
|
lchars[our_curs_x].chr == UCSWIDE)
|
|
our_curs_x--;
|
|
|
|
unlineptr(ldata);
|
|
}
|
|
|
|
/*
|
|
* If the cursor is not where it was last time we painted, and
|
|
* its previous position is visible on screen, invalidate its
|
|
* previous position.
|
|
*/
|
|
if (term->dispcursy >= 0 &&
|
|
(term->curstype != cursor ||
|
|
term->dispcursy != our_curs_y ||
|
|
term->dispcursx != our_curs_x)) {
|
|
termchar *dispcurs = term->disptext[term->dispcursy]->chars +
|
|
term->dispcursx;
|
|
|
|
if (term->dispcursx > 0 && dispcurs->chr == UCSWIDE)
|
|
dispcurs[-1].attr |= ATTR_INVALID;
|
|
if (term->dispcursx < term->cols-1 && dispcurs[1].chr == UCSWIDE)
|
|
dispcurs[1].attr |= ATTR_INVALID;
|
|
dispcurs->attr |= ATTR_INVALID;
|
|
|
|
term->curstype = 0;
|
|
}
|
|
term->dispcursx = term->dispcursy = -1;
|
|
|
|
#ifdef OPTIMISE_SCROLL
|
|
/* Do scrolls */
|
|
sr = term->scrollhead;
|
|
while (sr) {
|
|
struct scrollregion *next = sr->next;
|
|
do_scroll(ctx, sr->topline, sr->botline, sr->lines);
|
|
sfree(sr);
|
|
sr = next;
|
|
}
|
|
term->scrollhead = term->scrolltail = NULL;
|
|
#endif /* OPTIMISE_SCROLL */
|
|
|
|
/* The normal screen data */
|
|
for (i = 0; i < term->rows; i++) {
|
|
termline *ldata;
|
|
termchar *lchars;
|
|
int dirty_line, dirty_run, selected;
|
|
unsigned long attr = 0, cset = 0;
|
|
int updated_line = 0;
|
|
int start = 0;
|
|
int ccount = 0;
|
|
int last_run_dirty = 0;
|
|
int laststart, dirtyrect;
|
|
int *backward;
|
|
|
|
scrpos.y = i + term->disptop;
|
|
ldata = lineptr(scrpos.y);
|
|
|
|
/* Do Arabic shaping and bidi. */
|
|
lchars = term_bidi_line(term, ldata, i);
|
|
if (lchars) {
|
|
backward = term->post_bidi_cache[i].backward;
|
|
} else {
|
|
lchars = ldata->chars;
|
|
backward = NULL;
|
|
}
|
|
|
|
/*
|
|
* First loop: work along the line deciding what we want
|
|
* each character cell to look like.
|
|
*/
|
|
for (j = 0; j < term->cols; j++) {
|
|
unsigned long tattr, tchar;
|
|
termchar *d = lchars + j;
|
|
scrpos.x = backward ? backward[j] : j;
|
|
|
|
tchar = d->chr;
|
|
tattr = d->attr;
|
|
|
|
if (!term->cfg.ansi_colour)
|
|
tattr = (tattr & ~(ATTR_FGMASK | ATTR_BGMASK)) |
|
|
ATTR_DEFFG | ATTR_DEFBG;
|
|
|
|
if (!term->cfg.xterm_256_colour) {
|
|
int colour;
|
|
colour = (tattr & ATTR_FGMASK) >> ATTR_FGSHIFT;
|
|
if (colour >= 16 && colour < 256)
|
|
tattr = (tattr &~ ATTR_FGMASK) | ATTR_DEFFG;
|
|
colour = (tattr & ATTR_BGMASK) >> ATTR_BGSHIFT;
|
|
if (colour >= 16 && colour < 256)
|
|
tattr = (tattr &~ ATTR_BGMASK) | ATTR_DEFBG;
|
|
}
|
|
|
|
switch (tchar & CSET_MASK) {
|
|
case CSET_ASCII:
|
|
tchar = term->ucsdata->unitab_line[tchar & 0xFF];
|
|
break;
|
|
case CSET_LINEDRW:
|
|
tchar = term->ucsdata->unitab_xterm[tchar & 0xFF];
|
|
break;
|
|
case CSET_SCOACS:
|
|
tchar = term->ucsdata->unitab_scoacs[tchar&0xFF];
|
|
break;
|
|
}
|
|
if (j < term->cols-1 && d[1].chr == UCSWIDE)
|
|
tattr |= ATTR_WIDE;
|
|
|
|
/* Video reversing things */
|
|
if (term->selstate == DRAGGING || term->selstate == SELECTED) {
|
|
if (term->seltype == LEXICOGRAPHIC)
|
|
selected = (posle(term->selstart, scrpos) &&
|
|
poslt(scrpos, term->selend));
|
|
else
|
|
selected = (posPle(term->selstart, scrpos) &&
|
|
posPlt(scrpos, term->selend));
|
|
} else
|
|
selected = FALSE;
|
|
tattr = (tattr ^ rv
|
|
^ (selected ? ATTR_REVERSE : 0));
|
|
|
|
/* 'Real' blinking ? */
|
|
if (term->blink_is_real && (tattr & ATTR_BLINK)) {
|
|
if (term->has_focus && term->tblinker) {
|
|
tchar = term->ucsdata->unitab_line[(unsigned char)' '];
|
|
}
|
|
tattr &= ~ATTR_BLINK;
|
|
}
|
|
|
|
/*
|
|
* Check the font we'll _probably_ be using to see if
|
|
* the character is wide when we don't want it to be.
|
|
*/
|
|
if (tchar != term->disptext[i]->chars[j].chr ||
|
|
tattr != (term->disptext[i]->chars[j].attr &~
|
|
(ATTR_NARROW | DATTR_MASK))) {
|
|
if ((tattr & ATTR_WIDE) == 0 && char_width(ctx, tchar) == 2)
|
|
tattr |= ATTR_NARROW;
|
|
} else if (term->disptext[i]->chars[j].attr & ATTR_NARROW)
|
|
tattr |= ATTR_NARROW;
|
|
|
|
if (i == our_curs_y && j == our_curs_x) {
|
|
tattr |= cursor;
|
|
term->curstype = cursor;
|
|
term->dispcursx = j;
|
|
term->dispcursy = i;
|
|
}
|
|
|
|
/* FULL-TERMCHAR */
|
|
newline[j].attr = tattr;
|
|
newline[j].chr = tchar;
|
|
/* Combining characters are still read from lchars */
|
|
newline[j].cc_next = 0;
|
|
}
|
|
|
|
/*
|
|
* Now loop over the line again, noting where things have
|
|
* changed.
|
|
*
|
|
* During this loop, we keep track of where we last saw
|
|
* DATTR_STARTRUN. Any mismatch automatically invalidates
|
|
* _all_ of the containing run that was last printed: that
|
|
* is, any rectangle that was drawn in one go in the
|
|
* previous update should be either left completely alone
|
|
* or overwritten in its entirety. This, along with the
|
|
* expectation that front ends clip all text runs to their
|
|
* bounding rectangle, should solve any possible problems
|
|
* with fonts that overflow their character cells.
|
|
*/
|
|
laststart = 0;
|
|
dirtyrect = FALSE;
|
|
for (j = 0; j < term->cols; j++) {
|
|
if (term->disptext[i]->chars[j].attr & DATTR_STARTRUN) {
|
|
laststart = j;
|
|
dirtyrect = FALSE;
|
|
}
|
|
|
|
if (term->disptext[i]->chars[j].chr != newline[j].chr ||
|
|
(term->disptext[i]->chars[j].attr &~ DATTR_MASK)
|
|
!= newline[j].attr) {
|
|
int k;
|
|
|
|
if (!dirtyrect) {
|
|
for (k = laststart; k < j; k++)
|
|
term->disptext[i]->chars[k].attr |= ATTR_INVALID;
|
|
|
|
dirtyrect = TRUE;
|
|
}
|
|
}
|
|
|
|
if (dirtyrect)
|
|
term->disptext[i]->chars[j].attr |= ATTR_INVALID;
|
|
}
|
|
|
|
/*
|
|
* Finally, loop once more and actually do the drawing.
|
|
*/
|
|
dirty_run = dirty_line = (ldata->lattr !=
|
|
term->disptext[i]->lattr);
|
|
term->disptext[i]->lattr = ldata->lattr;
|
|
|
|
for (j = 0; j < term->cols; j++) {
|
|
unsigned long tattr, tchar;
|
|
int break_run, do_copy;
|
|
termchar *d = lchars + j;
|
|
|
|
tattr = newline[j].attr;
|
|
tchar = newline[j].chr;
|
|
|
|
if ((term->disptext[i]->chars[j].attr ^ tattr) & ATTR_WIDE)
|
|
dirty_line = TRUE;
|
|
|
|
break_run = ((tattr ^ attr) & term->attr_mask) != 0;
|
|
|
|
/* Special hack for VT100 Linedraw glyphs */
|
|
if (tchar >= 0x23BA && tchar <= 0x23BD)
|
|
break_run = TRUE;
|
|
|
|
/*
|
|
* Separate out sequences of characters that have the
|
|
* same CSET, if that CSET is a magic one.
|
|
*/
|
|
if (CSET_OF(tchar) != cset)
|
|
break_run = TRUE;
|
|
|
|
/*
|
|
* Break on both sides of any combined-character cell.
|
|
*/
|
|
if (d->cc_next != 0 ||
|
|
(j > 0 && d[-1].cc_next != 0))
|
|
break_run = TRUE;
|
|
|
|
if (!term->ucsdata->dbcs_screenfont && !dirty_line) {
|
|
if (term->disptext[i]->chars[j].chr == tchar &&
|
|
(term->disptext[i]->chars[j].attr &~ DATTR_MASK) == tattr)
|
|
break_run = TRUE;
|
|
else if (!dirty_run && ccount == 1)
|
|
break_run = TRUE;
|
|
}
|
|
|
|
if (break_run) {
|
|
if ((dirty_run || last_run_dirty) && ccount > 0) {
|
|
do_text(ctx, start, i, ch, ccount, attr,
|
|
ldata->lattr);
|
|
if (attr & (TATTR_ACTCURS | TATTR_PASCURS))
|
|
do_cursor(ctx, start, i, ch, ccount, attr,
|
|
ldata->lattr);
|
|
|
|
updated_line = 1;
|
|
}
|
|
start = j;
|
|
ccount = 0;
|
|
attr = tattr;
|
|
cset = CSET_OF(tchar);
|
|
if (term->ucsdata->dbcs_screenfont)
|
|
last_run_dirty = dirty_run;
|
|
dirty_run = dirty_line;
|
|
}
|
|
|
|
do_copy = FALSE;
|
|
if (!termchars_equal_override(&term->disptext[i]->chars[j],
|
|
d, tchar, tattr)) {
|
|
do_copy = TRUE;
|
|
dirty_run = TRUE;
|
|
}
|
|
|
|
if (ccount >= chlen) {
|
|
chlen = ccount + 256;
|
|
ch = sresize(ch, chlen, wchar_t);
|
|
}
|
|
ch[ccount++] = (wchar_t) tchar;
|
|
|
|
if (d->cc_next) {
|
|
termchar *dd = d;
|
|
|
|
while (dd->cc_next) {
|
|
unsigned long schar;
|
|
|
|
dd += dd->cc_next;
|
|
|
|
schar = dd->chr;
|
|
switch (schar & CSET_MASK) {
|
|
case CSET_ASCII:
|
|
schar = term->ucsdata->unitab_line[schar & 0xFF];
|
|
break;
|
|
case CSET_LINEDRW:
|
|
schar = term->ucsdata->unitab_xterm[schar & 0xFF];
|
|
break;
|
|
case CSET_SCOACS:
|
|
schar = term->ucsdata->unitab_scoacs[schar&0xFF];
|
|
break;
|
|
}
|
|
|
|
if (ccount >= chlen) {
|
|
chlen = ccount + 256;
|
|
ch = sresize(ch, chlen, wchar_t);
|
|
}
|
|
ch[ccount++] = (wchar_t) schar;
|
|
}
|
|
|
|
attr |= TATTR_COMBINING;
|
|
}
|
|
|
|
if (do_copy) {
|
|
copy_termchar(term->disptext[i], j, d);
|
|
term->disptext[i]->chars[j].chr = tchar;
|
|
term->disptext[i]->chars[j].attr = tattr;
|
|
if (start == j)
|
|
term->disptext[i]->chars[j].attr |= DATTR_STARTRUN;
|
|
}
|
|
|
|
/* If it's a wide char step along to the next one. */
|
|
if (tattr & ATTR_WIDE) {
|
|
if (++j < term->cols) {
|
|
d++;
|
|
/*
|
|
* By construction above, the cursor should not
|
|
* be on the right-hand half of this character.
|
|
* Ever.
|
|
*/
|
|
assert(!(i == our_curs_y && j == our_curs_x));
|
|
if (!termchars_equal(&term->disptext[i]->chars[j], d))
|
|
dirty_run = TRUE;
|
|
copy_termchar(term->disptext[i], j, d);
|
|
}
|
|
}
|
|
}
|
|
if (dirty_run && ccount > 0) {
|
|
do_text(ctx, start, i, ch, ccount, attr,
|
|
ldata->lattr);
|
|
if (attr & (TATTR_ACTCURS | TATTR_PASCURS))
|
|
do_cursor(ctx, start, i, ch, ccount, attr,
|
|
ldata->lattr);
|
|
|
|
updated_line = 1;
|
|
}
|
|
|
|
unlineptr(ldata);
|
|
}
|
|
|
|
sfree(newline);
|
|
sfree(ch);
|
|
}
|
|
|
|
/*
|
|
* Invalidate the whole screen so it will be repainted in full.
|
|
*/
|
|
void term_invalidate(Terminal *term)
|
|
{
|
|
int i, j;
|
|
|
|
for (i = 0; i < term->rows; i++)
|
|
for (j = 0; j < term->cols; j++)
|
|
term->disptext[i]->chars[j].attr |= ATTR_INVALID;
|
|
|
|
term_schedule_update(term);
|
|
}
|
|
|
|
/*
|
|
* Paint the window in response to a WM_PAINT message.
|
|
*/
|
|
void term_paint(Terminal *term, Context ctx,
|
|
int left, int top, int right, int bottom, int immediately)
|
|
{
|
|
int i, j;
|
|
if (left < 0) left = 0;
|
|
if (top < 0) top = 0;
|
|
if (right >= term->cols) right = term->cols-1;
|
|
if (bottom >= term->rows) bottom = term->rows-1;
|
|
|
|
for (i = top; i <= bottom && i < term->rows; i++) {
|
|
if ((term->disptext[i]->lattr & LATTR_MODE) == LATTR_NORM)
|
|
for (j = left; j <= right && j < term->cols; j++)
|
|
term->disptext[i]->chars[j].attr |= ATTR_INVALID;
|
|
else
|
|
for (j = left / 2; j <= right / 2 + 1 && j < term->cols; j++)
|
|
term->disptext[i]->chars[j].attr |= ATTR_INVALID;
|
|
}
|
|
|
|
if (immediately) {
|
|
do_paint (term, ctx, FALSE);
|
|
} else {
|
|
term_schedule_update(term);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Attempt to scroll the scrollback. The second parameter gives the
|
|
* position we want to scroll to; the first is +1 to denote that
|
|
* this position is relative to the beginning of the scrollback, -1
|
|
* to denote it is relative to the end, and 0 to denote that it is
|
|
* relative to the current position.
|
|
*/
|
|
void term_scroll(Terminal *term, int rel, int where)
|
|
{
|
|
int sbtop = -sblines(term);
|
|
#ifdef OPTIMISE_SCROLL
|
|
int olddisptop = term->disptop;
|
|
int shift;
|
|
#endif /* OPTIMISE_SCROLL */
|
|
|
|
term->disptop = (rel < 0 ? 0 : rel > 0 ? sbtop : term->disptop) + where;
|
|
if (term->disptop < sbtop)
|
|
term->disptop = sbtop;
|
|
if (term->disptop > 0)
|
|
term->disptop = 0;
|
|
update_sbar(term);
|
|
#ifdef OPTIMISE_SCROLL
|
|
shift = (term->disptop - olddisptop);
|
|
if (shift < term->rows && shift > -term->rows)
|
|
scroll_display(term, 0, term->rows - 1, shift);
|
|
#endif /* OPTIMISE_SCROLL */
|
|
term_update(term);
|
|
}
|
|
|
|
/*
|
|
* Helper routine for clipme(): growing buffer.
|
|
*/
|
|
typedef struct {
|
|
int buflen; /* amount of allocated space in textbuf/attrbuf */
|
|
int bufpos; /* amount of actual data */
|
|
wchar_t *textbuf; /* buffer for copied text */
|
|
wchar_t *textptr; /* = textbuf + bufpos (current insertion point) */
|
|
int *attrbuf; /* buffer for copied attributes */
|
|
int *attrptr; /* = attrbuf + bufpos */
|
|
} clip_workbuf;
|
|
|
|
static void clip_addchar(clip_workbuf *b, wchar_t chr, int attr)
|
|
{
|
|
if (b->bufpos >= b->buflen) {
|
|
b->buflen += 128;
|
|
b->textbuf = sresize(b->textbuf, b->buflen, wchar_t);
|
|
b->textptr = b->textbuf + b->bufpos;
|
|
b->attrbuf = sresize(b->attrbuf, b->buflen, int);
|
|
b->attrptr = b->attrbuf + b->bufpos;
|
|
}
|
|
*b->textptr++ = chr;
|
|
*b->attrptr++ = attr;
|
|
b->bufpos++;
|
|
}
|
|
|
|
static void clipme(Terminal *term, pos top, pos bottom, int rect, int desel)
|
|
{
|
|
clip_workbuf buf;
|
|
int old_top_x;
|
|
int attr;
|
|
|
|
buf.buflen = 5120;
|
|
buf.bufpos = 0;
|
|
buf.textptr = buf.textbuf = snewn(buf.buflen, wchar_t);
|
|
buf.attrptr = buf.attrbuf = snewn(buf.buflen, int);
|
|
|
|
old_top_x = top.x; /* needed for rect==1 */
|
|
|
|
while (poslt(top, bottom)) {
|
|
int nl = FALSE;
|
|
termline *ldata = lineptr(top.y);
|
|
pos nlpos;
|
|
|
|
/*
|
|
* nlpos will point at the maximum position on this line we
|
|
* should copy up to. So we start it at the end of the
|
|
* line...
|
|
*/
|
|
nlpos.y = top.y;
|
|
nlpos.x = term->cols;
|
|
|
|
/*
|
|
* ... move it backwards if there's unused space at the end
|
|
* of the line (and also set `nl' if this is the case,
|
|
* because in normal selection mode this means we need a
|
|
* newline at the end)...
|
|
*/
|
|
if (!(ldata->lattr & LATTR_WRAPPED)) {
|
|
while (nlpos.x &&
|
|
IS_SPACE_CHR(ldata->chars[nlpos.x - 1].chr) &&
|
|
!ldata->chars[nlpos.x - 1].cc_next &&
|
|
poslt(top, nlpos))
|
|
decpos(nlpos);
|
|
if (poslt(nlpos, bottom))
|
|
nl = TRUE;
|
|
} else if (ldata->lattr & LATTR_WRAPPED2) {
|
|
/* Ignore the last char on the line in a WRAPPED2 line. */
|
|
decpos(nlpos);
|
|
}
|
|
|
|
/*
|
|
* ... and then clip it to the terminal x coordinate if
|
|
* we're doing rectangular selection. (In this case we
|
|
* still did the above, so that copying e.g. the right-hand
|
|
* column from a table doesn't fill with spaces on the
|
|
* right.)
|
|
*/
|
|
if (rect) {
|
|
if (nlpos.x > bottom.x)
|
|
nlpos.x = bottom.x;
|
|
nl = (top.y < bottom.y);
|
|
}
|
|
|
|
while (poslt(top, bottom) && poslt(top, nlpos)) {
|
|
#if 0
|
|
char cbuf[16], *p;
|
|
sprintf(cbuf, "<U+%04x>", (ldata[top.x] & 0xFFFF));
|
|
#else
|
|
wchar_t cbuf[16], *p;
|
|
int set, c;
|
|
int x = top.x;
|
|
|
|
if (ldata->chars[x].chr == UCSWIDE) {
|
|
top.x++;
|
|
continue;
|
|
}
|
|
|
|
while (1) {
|
|
int uc = ldata->chars[x].chr;
|
|
attr = ldata->chars[x].attr;
|
|
|
|
switch (uc & CSET_MASK) {
|
|
case CSET_LINEDRW:
|
|
if (!term->cfg.rawcnp) {
|
|
uc = term->ucsdata->unitab_xterm[uc & 0xFF];
|
|
break;
|
|
}
|
|
case CSET_ASCII:
|
|
uc = term->ucsdata->unitab_line[uc & 0xFF];
|
|
break;
|
|
case CSET_SCOACS:
|
|
uc = term->ucsdata->unitab_scoacs[uc&0xFF];
|
|
break;
|
|
}
|
|
switch (uc & CSET_MASK) {
|
|
case CSET_ACP:
|
|
uc = term->ucsdata->unitab_font[uc & 0xFF];
|
|
break;
|
|
case CSET_OEMCP:
|
|
uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
|
|
break;
|
|
}
|
|
|
|
set = (uc & CSET_MASK);
|
|
c = (uc & ~CSET_MASK);
|
|
cbuf[0] = uc;
|
|
cbuf[1] = 0;
|
|
|
|
if (DIRECT_FONT(uc)) {
|
|
if (c >= ' ' && c != 0x7F) {
|
|
char buf[4];
|
|
WCHAR wbuf[4];
|
|
int rv;
|
|
if (is_dbcs_leadbyte(term->ucsdata->font_codepage, (BYTE) c)) {
|
|
buf[0] = c;
|
|
buf[1] = (char) (0xFF & ldata->chars[top.x + 1].chr);
|
|
rv = mb_to_wc(term->ucsdata->font_codepage, 0, buf, 2, wbuf, 4);
|
|
top.x++;
|
|
} else {
|
|
buf[0] = c;
|
|
rv = mb_to_wc(term->ucsdata->font_codepage, 0, buf, 1, wbuf, 4);
|
|
}
|
|
|
|
if (rv > 0) {
|
|
memcpy(cbuf, wbuf, rv * sizeof(wchar_t));
|
|
cbuf[rv] = 0;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
for (p = cbuf; *p; p++)
|
|
clip_addchar(&buf, *p, attr);
|
|
|
|
if (ldata->chars[x].cc_next)
|
|
x += ldata->chars[x].cc_next;
|
|
else
|
|
break;
|
|
}
|
|
top.x++;
|
|
}
|
|
if (nl) {
|
|
int i;
|
|
for (i = 0; i < sel_nl_sz; i++)
|
|
clip_addchar(&buf, sel_nl[i], 0);
|
|
}
|
|
top.y++;
|
|
top.x = rect ? old_top_x : 0;
|
|
|
|
unlineptr(ldata);
|
|
}
|
|
#if SELECTION_NUL_TERMINATED
|
|
clip_addchar(&buf, 0, 0);
|
|
#endif
|
|
/* Finally, transfer all that to the clipboard. */
|
|
write_clip(term->frontend, buf.textbuf, buf.attrbuf, buf.bufpos, desel);
|
|
sfree(buf.textbuf);
|
|
sfree(buf.attrbuf);
|
|
}
|
|
|
|
void term_copyall(Terminal *term)
|
|
{
|
|
pos top;
|
|
pos bottom;
|
|
tree234 *screen = term->screen;
|
|
top.y = -sblines(term);
|
|
top.x = 0;
|
|
bottom.y = find_last_nonempty_line(term, screen);
|
|
bottom.x = term->cols;
|
|
clipme(term, top, bottom, 0, TRUE);
|
|
}
|
|
|
|
/*
|
|
* The wordness array is mainly for deciding the disposition of the
|
|
* US-ASCII characters.
|
|
*/
|
|
static int wordtype(Terminal *term, int uc)
|
|
{
|
|
struct ucsword {
|
|
int start, end, ctype;
|
|
};
|
|
static const struct ucsword ucs_words[] = {
|
|
{
|
|
128, 160, 0}, {
|
|
161, 191, 1}, {
|
|
215, 215, 1}, {
|
|
247, 247, 1}, {
|
|
0x037e, 0x037e, 1}, /* Greek question mark */
|
|
{
|
|
0x0387, 0x0387, 1}, /* Greek ano teleia */
|
|
{
|
|
0x055a, 0x055f, 1}, /* Armenian punctuation */
|
|
{
|
|
0x0589, 0x0589, 1}, /* Armenian full stop */
|
|
{
|
|
0x0700, 0x070d, 1}, /* Syriac punctuation */
|
|
{
|
|
0x104a, 0x104f, 1}, /* Myanmar punctuation */
|
|
{
|
|
0x10fb, 0x10fb, 1}, /* Georgian punctuation */
|
|
{
|
|
0x1361, 0x1368, 1}, /* Ethiopic punctuation */
|
|
{
|
|
0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
|
|
{
|
|
0x17d4, 0x17dc, 1}, /* Khmer punctuation */
|
|
{
|
|
0x1800, 0x180a, 1}, /* Mongolian punctuation */
|
|
{
|
|
0x2000, 0x200a, 0}, /* Various spaces */
|
|
{
|
|
0x2070, 0x207f, 2}, /* superscript */
|
|
{
|
|
0x2080, 0x208f, 2}, /* subscript */
|
|
{
|
|
0x200b, 0x27ff, 1}, /* punctuation and symbols */
|
|
{
|
|
0x3000, 0x3000, 0}, /* ideographic space */
|
|
{
|
|
0x3001, 0x3020, 1}, /* ideographic punctuation */
|
|
{
|
|
0x303f, 0x309f, 3}, /* Hiragana */
|
|
{
|
|
0x30a0, 0x30ff, 3}, /* Katakana */
|
|
{
|
|
0x3300, 0x9fff, 3}, /* CJK Ideographs */
|
|
{
|
|
0xac00, 0xd7a3, 3}, /* Hangul Syllables */
|
|
{
|
|
0xf900, 0xfaff, 3}, /* CJK Ideographs */
|
|
{
|
|
0xfe30, 0xfe6b, 1}, /* punctuation forms */
|
|
{
|
|
0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
|
|
{
|
|
0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
|
|
{
|
|
0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
|
|
{
|
|
0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
|
|
{
|
|
0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
|
|
{
|
|
0, 0, 0}
|
|
};
|
|
const struct ucsword *wptr;
|
|
|
|
switch (uc & CSET_MASK) {
|
|
case CSET_LINEDRW:
|
|
uc = term->ucsdata->unitab_xterm[uc & 0xFF];
|
|
break;
|
|
case CSET_ASCII:
|
|
uc = term->ucsdata->unitab_line[uc & 0xFF];
|
|
break;
|
|
case CSET_SCOACS:
|
|
uc = term->ucsdata->unitab_scoacs[uc&0xFF];
|
|
break;
|
|
}
|
|
switch (uc & CSET_MASK) {
|
|
case CSET_ACP:
|
|
uc = term->ucsdata->unitab_font[uc & 0xFF];
|
|
break;
|
|
case CSET_OEMCP:
|
|
uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
|
|
break;
|
|
}
|
|
|
|
/* For DBCS fonts I can't do anything useful. Even this will sometimes
|
|
* fail as there's such a thing as a double width space. :-(
|
|
*/
|
|
if (term->ucsdata->dbcs_screenfont &&
|
|
term->ucsdata->font_codepage == term->ucsdata->line_codepage)
|
|
return (uc != ' ');
|
|
|
|
if (uc < 0x80)
|
|
return term->wordness[uc];
|
|
|
|
for (wptr = ucs_words; wptr->start; wptr++) {
|
|
if (uc >= wptr->start && uc <= wptr->end)
|
|
return wptr->ctype;
|
|
}
|
|
|
|
return 2;
|
|
}
|
|
|
|
/*
|
|
* Spread the selection outwards according to the selection mode.
|
|
*/
|
|
static pos sel_spread_half(Terminal *term, pos p, int dir)
|
|
{
|
|
termline *ldata;
|
|
short wvalue;
|
|
int topy = -sblines(term);
|
|
|
|
ldata = lineptr(p.y);
|
|
|
|
switch (term->selmode) {
|
|
case SM_CHAR:
|
|
/*
|
|
* In this mode, every character is a separate unit, except
|
|
* for runs of spaces at the end of a non-wrapping line.
|
|
*/
|
|
if (!(ldata->lattr & LATTR_WRAPPED)) {
|
|
termchar *q = ldata->chars + term->cols;
|
|
while (q > ldata->chars &&
|
|
IS_SPACE_CHR(q[-1].chr) && !q[-1].cc_next)
|
|
q--;
|
|
if (q == ldata->chars + term->cols)
|
|
q--;
|
|
if (p.x >= q - ldata->chars)
|
|
p.x = (dir == -1 ? q - ldata->chars : term->cols - 1);
|
|
}
|
|
break;
|
|
case SM_WORD:
|
|
/*
|
|
* In this mode, the units are maximal runs of characters
|
|
* whose `wordness' has the same value.
|
|
*/
|
|
wvalue = wordtype(term, UCSGET(ldata->chars, p.x));
|
|
if (dir == +1) {
|
|
while (1) {
|
|
int maxcols = (ldata->lattr & LATTR_WRAPPED2 ?
|
|
term->cols-1 : term->cols);
|
|
if (p.x < maxcols-1) {
|
|
if (wordtype(term, UCSGET(ldata->chars, p.x+1)) == wvalue)
|
|
p.x++;
|
|
else
|
|
break;
|
|
} else {
|
|
if (ldata->lattr & LATTR_WRAPPED) {
|
|
termline *ldata2;
|
|
ldata2 = lineptr(p.y+1);
|
|
if (wordtype(term, UCSGET(ldata2->chars, 0))
|
|
== wvalue) {
|
|
p.x = 0;
|
|
p.y++;
|
|
unlineptr(ldata);
|
|
ldata = ldata2;
|
|
} else {
|
|
unlineptr(ldata2);
|
|
break;
|
|
}
|
|
} else
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
while (1) {
|
|
if (p.x > 0) {
|
|
if (wordtype(term, UCSGET(ldata->chars, p.x-1)) == wvalue)
|
|
p.x--;
|
|
else
|
|
break;
|
|
} else {
|
|
termline *ldata2;
|
|
int maxcols;
|
|
if (p.y <= topy)
|
|
break;
|
|
ldata2 = lineptr(p.y-1);
|
|
maxcols = (ldata2->lattr & LATTR_WRAPPED2 ?
|
|
term->cols-1 : term->cols);
|
|
if (ldata2->lattr & LATTR_WRAPPED) {
|
|
if (wordtype(term, UCSGET(ldata2->chars, maxcols-1))
|
|
== wvalue) {
|
|
p.x = maxcols-1;
|
|
p.y--;
|
|
unlineptr(ldata);
|
|
ldata = ldata2;
|
|
} else {
|
|
unlineptr(ldata2);
|
|
break;
|
|
}
|
|
} else
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case SM_LINE:
|
|
/*
|
|
* In this mode, every line is a unit.
|
|
*/
|
|
p.x = (dir == -1 ? 0 : term->cols - 1);
|
|
break;
|
|
}
|
|
|
|
unlineptr(ldata);
|
|
return p;
|
|
}
|
|
|
|
static void sel_spread(Terminal *term)
|
|
{
|
|
if (term->seltype == LEXICOGRAPHIC) {
|
|
term->selstart = sel_spread_half(term, term->selstart, -1);
|
|
decpos(term->selend);
|
|
term->selend = sel_spread_half(term, term->selend, +1);
|
|
incpos(term->selend);
|
|
}
|
|
}
|
|
|
|
void term_do_paste(Terminal *term)
|
|
{
|
|
wchar_t *data;
|
|
int len;
|
|
|
|
get_clip(term->frontend, &data, &len);
|
|
if (data && len > 0) {
|
|
wchar_t *p, *q;
|
|
|
|
term_seen_key_event(term); /* pasted data counts */
|
|
|
|
if (term->paste_buffer)
|
|
sfree(term->paste_buffer);
|
|
term->paste_pos = term->paste_hold = term->paste_len = 0;
|
|
term->paste_buffer = snewn(len, wchar_t);
|
|
|
|
p = q = data;
|
|
while (p < data + len) {
|
|
while (p < data + len &&
|
|
!(p <= data + len - sel_nl_sz &&
|
|
!memcmp(p, sel_nl, sizeof(sel_nl))))
|
|
p++;
|
|
|
|
{
|
|
int i;
|
|
for (i = 0; i < p - q; i++) {
|
|
term->paste_buffer[term->paste_len++] = q[i];
|
|
}
|
|
}
|
|
|
|
if (p <= data + len - sel_nl_sz &&
|
|
!memcmp(p, sel_nl, sizeof(sel_nl))) {
|
|
term->paste_buffer[term->paste_len++] = '\015';
|
|
p += sel_nl_sz;
|
|
}
|
|
q = p;
|
|
}
|
|
|
|
/* Assume a small paste will be OK in one go. */
|
|
if (term->paste_len < 256) {
|
|
if (term->ldisc)
|
|
luni_send(term->ldisc, term->paste_buffer, term->paste_len, 0);
|
|
if (term->paste_buffer)
|
|
sfree(term->paste_buffer);
|
|
term->paste_buffer = 0;
|
|
term->paste_pos = term->paste_hold = term->paste_len = 0;
|
|
}
|
|
}
|
|
get_clip(term->frontend, NULL, NULL);
|
|
}
|
|
|
|
void term_mouse(Terminal *term, Mouse_Button braw, Mouse_Button bcooked,
|
|
Mouse_Action a, int x, int y, int shift, int ctrl, int alt)
|
|
{
|
|
pos selpoint;
|
|
termline *ldata;
|
|
int raw_mouse = (term->xterm_mouse &&
|
|
!term->cfg.no_mouse_rep &&
|
|
!(term->cfg.mouse_override && shift));
|
|
int default_seltype;
|
|
|
|
if (y < 0) {
|
|
y = 0;
|
|
if (a == MA_DRAG && !raw_mouse)
|
|
term_scroll(term, 0, -1);
|
|
}
|
|
if (y >= term->rows) {
|
|
y = term->rows - 1;
|
|
if (a == MA_DRAG && !raw_mouse)
|
|
term_scroll(term, 0, +1);
|
|
}
|
|
if (x < 0) {
|
|
if (y > 0) {
|
|
x = term->cols - 1;
|
|
y--;
|
|
} else
|
|
x = 0;
|
|
}
|
|
if (x >= term->cols)
|
|
x = term->cols - 1;
|
|
|
|
selpoint.y = y + term->disptop;
|
|
ldata = lineptr(selpoint.y);
|
|
|
|
if ((ldata->lattr & LATTR_MODE) != LATTR_NORM)
|
|
x /= 2;
|
|
|
|
/*
|
|
* Transform x through the bidi algorithm to find the _logical_
|
|
* click point from the physical one.
|
|
*/
|
|
if (term_bidi_line(term, ldata, y) != NULL) {
|
|
x = term->post_bidi_cache[y].backward[x];
|
|
}
|
|
|
|
selpoint.x = x;
|
|
unlineptr(ldata);
|
|
|
|
/*
|
|
* If we're in the middle of a selection operation, we ignore raw
|
|
* mouse mode until it's done (we must have been not in raw mouse
|
|
* mode when it started).
|
|
* This makes use of Shift for selection reliable, and avoids the
|
|
* host seeing mouse releases for which they never saw corresponding
|
|
* presses.
|
|
*/
|
|
if (raw_mouse &&
|
|
(term->selstate != ABOUT_TO) && (term->selstate != DRAGGING)) {
|
|
int encstate = 0, r, c;
|
|
char abuf[16];
|
|
|
|
if (term->ldisc) {
|
|
|
|
switch (braw) {
|
|
case MBT_LEFT:
|
|
encstate = 0x20; /* left button down */
|
|
break;
|
|
case MBT_MIDDLE:
|
|
encstate = 0x21;
|
|
break;
|
|
case MBT_RIGHT:
|
|
encstate = 0x22;
|
|
break;
|
|
case MBT_WHEEL_UP:
|
|
encstate = 0x60;
|
|
break;
|
|
case MBT_WHEEL_DOWN:
|
|
encstate = 0x61;
|
|
break;
|
|
default: break; /* placate gcc warning about enum use */
|
|
}
|
|
switch (a) {
|
|
case MA_DRAG:
|
|
if (term->xterm_mouse == 1)
|
|
return;
|
|
encstate += 0x20;
|
|
break;
|
|
case MA_RELEASE:
|
|
encstate = 0x23;
|
|
term->mouse_is_down = 0;
|
|
break;
|
|
case MA_CLICK:
|
|
if (term->mouse_is_down == braw)
|
|
return;
|
|
term->mouse_is_down = braw;
|
|
break;
|
|
default: break; /* placate gcc warning about enum use */
|
|
}
|
|
if (shift)
|
|
encstate += 0x04;
|
|
if (ctrl)
|
|
encstate += 0x10;
|
|
r = y + 33;
|
|
c = x + 33;
|
|
|
|
sprintf(abuf, "\033[M%c%c%c", encstate, c, r);
|
|
ldisc_send(term->ldisc, abuf, 6, 0);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Set the selection type (rectangular or normal) at the start
|
|
* of a selection attempt, from the state of Alt.
|
|
*/
|
|
if (!alt ^ !term->cfg.rect_select)
|
|
default_seltype = RECTANGULAR;
|
|
else
|
|
default_seltype = LEXICOGRAPHIC;
|
|
|
|
if (term->selstate == NO_SELECTION) {
|
|
term->seltype = default_seltype;
|
|
}
|
|
|
|
if (bcooked == MBT_SELECT && a == MA_CLICK) {
|
|
deselect(term);
|
|
term->selstate = ABOUT_TO;
|
|
term->seltype = default_seltype;
|
|
term->selanchor = selpoint;
|
|
term->selmode = SM_CHAR;
|
|
} else if (bcooked == MBT_SELECT && (a == MA_2CLK || a == MA_3CLK)) {
|
|
deselect(term);
|
|
term->selmode = (a == MA_2CLK ? SM_WORD : SM_LINE);
|
|
term->selstate = DRAGGING;
|
|
term->selstart = term->selanchor = selpoint;
|
|
term->selend = term->selstart;
|
|
incpos(term->selend);
|
|
sel_spread(term);
|
|
} else if ((bcooked == MBT_SELECT && a == MA_DRAG) ||
|
|
(bcooked == MBT_EXTEND && a != MA_RELEASE)) {
|
|
if (term->selstate == ABOUT_TO && poseq(term->selanchor, selpoint))
|
|
return;
|
|
if (bcooked == MBT_EXTEND && a != MA_DRAG &&
|
|
term->selstate == SELECTED) {
|
|
if (term->seltype == LEXICOGRAPHIC) {
|
|
/*
|
|
* For normal selection, we extend by moving
|
|
* whichever end of the current selection is closer
|
|
* to the mouse.
|
|
*/
|
|
if (posdiff(selpoint, term->selstart) <
|
|
posdiff(term->selend, term->selstart) / 2) {
|
|
term->selanchor = term->selend;
|
|
decpos(term->selanchor);
|
|
} else {
|
|
term->selanchor = term->selstart;
|
|
}
|
|
} else {
|
|
/*
|
|
* For rectangular selection, we have a choice of
|
|
* _four_ places to put selanchor and selpoint: the
|
|
* four corners of the selection.
|
|
*/
|
|
if (2*selpoint.x < term->selstart.x + term->selend.x)
|
|
term->selanchor.x = term->selend.x-1;
|
|
else
|
|
term->selanchor.x = term->selstart.x;
|
|
|
|
if (2*selpoint.y < term->selstart.y + term->selend.y)
|
|
term->selanchor.y = term->selend.y;
|
|
else
|
|
term->selanchor.y = term->selstart.y;
|
|
}
|
|
term->selstate = DRAGGING;
|
|
}
|
|
if (term->selstate != ABOUT_TO && term->selstate != DRAGGING)
|
|
term->selanchor = selpoint;
|
|
term->selstate = DRAGGING;
|
|
if (term->seltype == LEXICOGRAPHIC) {
|
|
/*
|
|
* For normal selection, we set (selstart,selend) to
|
|
* (selpoint,selanchor) in some order.
|
|
*/
|
|
if (poslt(selpoint, term->selanchor)) {
|
|
term->selstart = selpoint;
|
|
term->selend = term->selanchor;
|
|
incpos(term->selend);
|
|
} else {
|
|
term->selstart = term->selanchor;
|
|
term->selend = selpoint;
|
|
incpos(term->selend);
|
|
}
|
|
} else {
|
|
/*
|
|
* For rectangular selection, we may need to
|
|
* interchange x and y coordinates (if the user has
|
|
* dragged in the -x and +y directions, or vice versa).
|
|
*/
|
|
term->selstart.x = min(term->selanchor.x, selpoint.x);
|
|
term->selend.x = 1+max(term->selanchor.x, selpoint.x);
|
|
term->selstart.y = min(term->selanchor.y, selpoint.y);
|
|
term->selend.y = max(term->selanchor.y, selpoint.y);
|
|
}
|
|
sel_spread(term);
|
|
} else if ((bcooked == MBT_SELECT || bcooked == MBT_EXTEND) &&
|
|
a == MA_RELEASE) {
|
|
if (term->selstate == DRAGGING) {
|
|
/*
|
|
* We've completed a selection. We now transfer the
|
|
* data to the clipboard.
|
|
*/
|
|
clipme(term, term->selstart, term->selend,
|
|
(term->seltype == RECTANGULAR), FALSE);
|
|
term->selstate = SELECTED;
|
|
} else
|
|
term->selstate = NO_SELECTION;
|
|
} else if (bcooked == MBT_PASTE
|
|
&& (a == MA_CLICK
|
|
#if MULTICLICK_ONLY_EVENT
|
|
|| a == MA_2CLK || a == MA_3CLK
|
|
#endif
|
|
)) {
|
|
request_paste(term->frontend);
|
|
}
|
|
|
|
term_update(term);
|
|
}
|
|
|
|
void term_key(Terminal *term, Key_Sym keysym, wchar_t *text, size_t tlen,
|
|
unsigned int modifiers, unsigned int flags)
|
|
{
|
|
char output[10];
|
|
char *p = output;
|
|
int prependesc = FALSE;
|
|
#if 0
|
|
int i;
|
|
|
|
fprintf(stderr, "keysym = %d, %d chars:", keysym, tlen);
|
|
for (i = 0; i < tlen; i++)
|
|
fprintf(stderr, " %04x", (unsigned)text[i]);
|
|
fprintf(stderr, "\n");
|
|
#endif
|
|
|
|
/* XXX Num Lock */
|
|
if ((flags & PKF_REPEAT) && term->repeat_off)
|
|
return;
|
|
|
|
/* Currently, Meta always just prefixes everything with ESC. */
|
|
if (modifiers & PKM_META)
|
|
prependesc = TRUE;
|
|
modifiers &= ~PKM_META;
|
|
|
|
/*
|
|
* Alt is only used for Alt+keypad, which isn't supported yet, so
|
|
* ignore it.
|
|
*/
|
|
modifiers &= ~PKM_ALT;
|
|
|
|
/* Standard local function keys */
|
|
switch (modifiers & (PKM_SHIFT | PKM_CONTROL)) {
|
|
case PKM_SHIFT:
|
|
if (keysym == PK_PAGEUP)
|
|
/* scroll up one page */;
|
|
if (keysym == PK_PAGEDOWN)
|
|
/* scroll down on page */;
|
|
if (keysym == PK_INSERT)
|
|
term_do_paste(term);
|
|
break;
|
|
case PKM_CONTROL:
|
|
if (keysym == PK_PAGEUP)
|
|
/* scroll up one line */;
|
|
if (keysym == PK_PAGEDOWN)
|
|
/* scroll down one line */;
|
|
/* Control-Numlock for app-keypad mode switch */
|
|
if (keysym == PK_PF1)
|
|
term->app_keypad_keys ^= 1;
|
|
break;
|
|
}
|
|
|
|
if (modifiers & PKM_ALT) {
|
|
/* Alt+F4 (close) */
|
|
/* Alt+Return (full screen) */
|
|
/* Alt+Space (system menu) */
|
|
}
|
|
|
|
if (keysym == PK_NULL && (modifiers & PKM_CONTROL) && tlen == 1 &&
|
|
text[0] >= 0x20 && text[0] <= 0x7e) {
|
|
/* ASCII chars + Control */
|
|
if ((text[0] >= 0x40 && text[0] <= 0x5f) ||
|
|
(text[0] >= 0x61 && text[0] <= 0x7a))
|
|
text[0] &= 0x1f;
|
|
else {
|
|
/*
|
|
* Control-2 should return ^@ (0x00), Control-6 should return
|
|
* ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
|
|
* the DOS keyboard handling did it, and we have nothing better
|
|
* to do with the key combo in question, we'll also map
|
|
* Control-Backquote to ^\ (0x1C).
|
|
*/
|
|
switch (text[0]) {
|
|
case ' ': text[0] = 0x00; break;
|
|
case '-': text[0] = 0x1f; break;
|
|
case '/': text[0] = 0x1f; break;
|
|
case '2': text[0] = 0x00; break;
|
|
case '3': text[0] = 0x1b; break;
|
|
case '4': text[0] = 0x1c; break;
|
|
case '5': text[0] = 0x1d; break;
|
|
case '6': text[0] = 0x1e; break;
|
|
case '7': text[0] = 0x1f; break;
|
|
case '8': text[0] = 0x7f; break;
|
|
case '`': text[0] = 0x1c; break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Nethack keypad */
|
|
if (term->cfg.nethack_keypad) {
|
|
char c = 0;
|
|
switch (keysym) {
|
|
case PK_KP1: c = 'b'; break;
|
|
case PK_KP2: c = 'j'; break;
|
|
case PK_KP3: c = 'n'; break;
|
|
case PK_KP4: c = 'h'; break;
|
|
case PK_KP5: c = '.'; break;
|
|
case PK_KP6: c = 'l'; break;
|
|
case PK_KP7: c = 'y'; break;
|
|
case PK_KP8: c = 'k'; break;
|
|
case PK_KP9: c = 'u'; break;
|
|
default: break; /* else gcc warns `enum value not used' */
|
|
}
|
|
if (c != 0) {
|
|
if (c != '.') {
|
|
if (modifiers & PKM_CONTROL)
|
|
c &= 0x1f;
|
|
else if (modifiers & PKM_SHIFT)
|
|
c = toupper(c);
|
|
}
|
|
*p++ = c;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/* Numeric Keypad */
|
|
if (PK_ISKEYPAD(keysym)) {
|
|
int xkey = 0;
|
|
|
|
/*
|
|
* In VT400 mode, PFn always emits an escape sequence. In
|
|
* Linux and tilde modes, this only happens in app keypad mode.
|
|
*/
|
|
if (term->cfg.funky_type == FUNKY_VT400 ||
|
|
((term->cfg.funky_type == FUNKY_LINUX ||
|
|
term->cfg.funky_type == FUNKY_TILDE) &&
|
|
term->app_keypad_keys && !term->cfg.no_applic_k)) {
|
|
switch (keysym) {
|
|
case PK_PF1: xkey = 'P'; break;
|
|
case PK_PF2: xkey = 'Q'; break;
|
|
case PK_PF3: xkey = 'R'; break;
|
|
case PK_PF4: xkey = 'S'; break;
|
|
default: break; /* else gcc warns `enum value not used' */
|
|
}
|
|
}
|
|
if (term->app_keypad_keys && !term->cfg.no_applic_k) {
|
|
switch (keysym) {
|
|
case PK_KP0: xkey = 'p'; break;
|
|
case PK_KP1: xkey = 'q'; break;
|
|
case PK_KP2: xkey = 'r'; break;
|
|
case PK_KP3: xkey = 's'; break;
|
|
case PK_KP4: xkey = 't'; break;
|
|
case PK_KP5: xkey = 'u'; break;
|
|
case PK_KP6: xkey = 'v'; break;
|
|
case PK_KP7: xkey = 'w'; break;
|
|
case PK_KP8: xkey = 'x'; break;
|
|
case PK_KP9: xkey = 'y'; break;
|
|
case PK_KPDECIMAL: xkey = 'n'; break;
|
|
case PK_KPENTER: xkey = 'M'; break;
|
|
default: break; /* else gcc warns `enum value not used' */
|
|
}
|
|
if (term->cfg.funky_type == FUNKY_XTERM && tlen > 0) {
|
|
/*
|
|
* xterm can't see the layout of the keypad, so it has
|
|
* to rely on the X keysyms returned by the keys.
|
|
* Hence, we look at the strings here, not the PuTTY
|
|
* keysyms (which describe the layout).
|
|
*/
|
|
switch (text[0]) {
|
|
case '+':
|
|
if (modifiers & PKM_SHIFT)
|
|
xkey = 'l';
|
|
else
|
|
xkey = 'k';
|
|
break;
|
|
case '/': xkey = 'o'; break;
|
|
case '*': xkey = 'j'; break;
|
|
case '-': xkey = 'm'; break;
|
|
}
|
|
} else {
|
|
/*
|
|
* In all other modes, we try to retain the layout of
|
|
* the DEC keypad in application mode.
|
|
*/
|
|
switch (keysym) {
|
|
case PK_KPBIGPLUS:
|
|
/* This key covers the '-' and ',' keys on a VT220 */
|
|
if (modifiers & PKM_SHIFT)
|
|
xkey = 'm'; /* VT220 '-' */
|
|
else
|
|
xkey = 'l'; /* VT220 ',' */
|
|
break;
|
|
case PK_KPMINUS: xkey = 'm'; break;
|
|
case PK_KPCOMMA: xkey = 'l'; break;
|
|
default: break; /* else gcc warns `enum value not used' */
|
|
}
|
|
}
|
|
}
|
|
if (xkey) {
|
|
if (term->vt52_mode) {
|
|
if (xkey >= 'P' && xkey <= 'S')
|
|
p += sprintf((char *) p, "\x1B%c", xkey);
|
|
else
|
|
p += sprintf((char *) p, "\x1B?%c", xkey);
|
|
} else
|
|
p += sprintf((char *) p, "\x1BO%c", xkey);
|
|
goto done;
|
|
}
|
|
/* Not in application mode -- treat the number pad as arrow keys? */
|
|
if ((flags & PKF_NUMLOCK) == 0) {
|
|
switch (keysym) {
|
|
case PK_KP0: keysym = PK_INSERT; break;
|
|
case PK_KP1: keysym = PK_END; break;
|
|
case PK_KP2: keysym = PK_DOWN; break;
|
|
case PK_KP3: keysym = PK_PAGEDOWN; break;
|
|
case PK_KP4: keysym = PK_LEFT; break;
|
|
case PK_KP5: keysym = PK_REST; break;
|
|
case PK_KP6: keysym = PK_RIGHT; break;
|
|
case PK_KP7: keysym = PK_HOME; break;
|
|
case PK_KP8: keysym = PK_UP; break;
|
|
case PK_KP9: keysym = PK_PAGEUP; break;
|
|
default: break; /* else gcc warns `enum value not used' */
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Miscellaneous keys */
|
|
switch (keysym) {
|
|
case PK_ESCAPE:
|
|
*p++ = 0x1b;
|
|
goto done;
|
|
case PK_BACKSPACE:
|
|
if (modifiers == 0)
|
|
*p++ = (term->cfg.bksp_is_delete ? 0x7F : 0x08);
|
|
else if (modifiers == PKM_SHIFT)
|
|
/* We do the opposite of what is configured */
|
|
*p++ = (term->cfg.bksp_is_delete ? 0x08 : 0x7F);
|
|
else break;
|
|
goto done;
|
|
case PK_TAB:
|
|
if (modifiers == 0)
|
|
*p++ = 0x09;
|
|
else if (modifiers == PKM_SHIFT)
|
|
*p++ = 0x1B, *p++ = '[', *p++ = 'Z';
|
|
else break;
|
|
goto done;
|
|
/* XXX window.c has ctrl+shift+space sending 0xa0 */
|
|
case PK_PAUSE:
|
|
if (modifiers == PKM_CONTROL)
|
|
*p++ = 26;
|
|
else break;
|
|
goto done;
|
|
case PK_RETURN:
|
|
case PK_KPENTER: /* Odd keypad modes handled above */
|
|
if (modifiers == 0) {
|
|
*p++ = 0x0d;
|
|
if (term->cr_lf_return)
|
|
*p++ = 0x0a;
|
|
goto done;
|
|
}
|
|
default: break; /* else gcc warns `enum value not used' */
|
|
}
|
|
|
|
/* SCO function keys and editing keys */
|
|
if (term->cfg.funky_type == FUNKY_SCO) {
|
|
if (PK_ISFKEY(keysym) && keysym <= PK_F12) {
|
|
static char const codes[] =
|
|
"MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
|
|
int index = keysym - PK_F1;
|
|
|
|
if (modifiers & PKM_SHIFT) index += 12;
|
|
if (modifiers & PKM_CONTROL) index += 24;
|
|
p += sprintf((char *) p, "\x1B[%c", codes[index]);
|
|
goto done;
|
|
}
|
|
if (PK_ISEDITING(keysym)) {
|
|
int xkey = 0;
|
|
|
|
switch (keysym) {
|
|
case PK_DELETE: *p++ = 0x7f; goto done;
|
|
case PK_HOME: xkey = 'H'; break;
|
|
case PK_INSERT: xkey = 'L'; break;
|
|
case PK_END: xkey = 'F'; break;
|
|
case PK_PAGEUP: xkey = 'I'; break;
|
|
case PK_PAGEDOWN: xkey = 'G'; break;
|
|
default: break; /* else gcc warns `enum value not used' */
|
|
}
|
|
p += sprintf((char *) p, "\x1B[%c", xkey);
|
|
}
|
|
}
|
|
|
|
if (PK_ISEDITING(keysym) && (modifiers & PKM_SHIFT) == 0) {
|
|
int code;
|
|
|
|
if (term->cfg.funky_type == FUNKY_XTERM) {
|
|
/* Xterm shuffles these keys, apparently. */
|
|
switch (keysym) {
|
|
case PK_HOME: keysym = PK_INSERT; break;
|
|
case PK_INSERT: keysym = PK_HOME; break;
|
|
case PK_DELETE: keysym = PK_END; break;
|
|
case PK_END: keysym = PK_PAGEUP; break;
|
|
case PK_PAGEUP: keysym = PK_DELETE; break;
|
|
case PK_PAGEDOWN: keysym = PK_PAGEDOWN; break;
|
|
default: break; /* else gcc warns `enum value not used' */
|
|
}
|
|
}
|
|
|
|
/* RXVT Home/End */
|
|
if (term->cfg.rxvt_homeend &&
|
|
(keysym == PK_HOME || keysym == PK_END)) {
|
|
p += sprintf((char *) p, keysym == PK_HOME ? "\x1B[H" : "\x1BOw");
|
|
goto done;
|
|
}
|
|
|
|
if (term->vt52_mode) {
|
|
int xkey;
|
|
|
|
/*
|
|
* A real VT52 doesn't have these, and a VT220 doesn't
|
|
* send anything for them in VT52 mode.
|
|
*/
|
|
switch (keysym) {
|
|
case PK_HOME: xkey = 'H'; break;
|
|
case PK_INSERT: xkey = 'L'; break;
|
|
case PK_DELETE: xkey = 'M'; break;
|
|
case PK_END: xkey = 'E'; break;
|
|
case PK_PAGEUP: xkey = 'I'; break;
|
|
case PK_PAGEDOWN: xkey = 'G'; break;
|
|
default: xkey=0; break; /* else gcc warns `enum value not used'*/
|
|
}
|
|
p += sprintf((char *) p, "\x1B%c", xkey);
|
|
goto done;
|
|
}
|
|
|
|
switch (keysym) {
|
|
case PK_HOME: code = 1; break;
|
|
case PK_INSERT: code = 2; break;
|
|
case PK_DELETE: code = 3; break;
|
|
case PK_END: code = 4; break;
|
|
case PK_PAGEUP: code = 5; break;
|
|
case PK_PAGEDOWN: code = 6; break;
|
|
default: code = 0; break; /* else gcc warns `enum value not used' */
|
|
}
|
|
p += sprintf((char *) p, "\x1B[%d~", code);
|
|
goto done;
|
|
}
|
|
|
|
if (PK_ISFKEY(keysym)) {
|
|
/* Map Shift+F1-F10 to F11-F20 */
|
|
if (keysym >= PK_F1 && keysym <= PK_F10 && (modifiers & PKM_SHIFT))
|
|
keysym += 10;
|
|
if ((term->vt52_mode || term->cfg.funky_type == FUNKY_VT100P) &&
|
|
keysym <= PK_F14) {
|
|
/* XXX This overrides the XTERM/VT52 mode below */
|
|
int offt = 0;
|
|
if (keysym >= PK_F6) offt++;
|
|
if (keysym >= PK_F12) offt++;
|
|
p += sprintf((char *) p, term->vt52_mode ? "\x1B%c" : "\x1BO%c",
|
|
'P' + keysym - PK_F1 - offt);
|
|
goto done;
|
|
}
|
|
if (term->cfg.funky_type == FUNKY_LINUX && keysym <= PK_F5) {
|
|
p += sprintf((char *) p, "\x1B[[%c", 'A' + keysym - PK_F1);
|
|
goto done;
|
|
}
|
|
if (term->cfg.funky_type == FUNKY_XTERM && keysym <= PK_F4) {
|
|
if (term->vt52_mode)
|
|
p += sprintf((char *) p, "\x1B%c", 'P' + keysym - PK_F1);
|
|
else
|
|
p += sprintf((char *) p, "\x1BO%c", 'P' + keysym - PK_F1);
|
|
goto done;
|
|
}
|
|
p += sprintf((char *) p, "\x1B[%d~", 11 + keysym - PK_F1);
|
|
goto done;
|
|
}
|
|
|
|
if (PK_ISCURSOR(keysym)) {
|
|
int xkey;
|
|
|
|
switch (keysym) {
|
|
case PK_UP: xkey = 'A'; break;
|
|
case PK_DOWN: xkey = 'B'; break;
|
|
case PK_RIGHT: xkey = 'C'; break;
|
|
case PK_LEFT: xkey = 'D'; break;
|
|
case PK_REST: xkey = 'G'; break; /* centre key on number pad */
|
|
default: xkey = 0; break; /* else gcc warns `enum value not used' */
|
|
}
|
|
if (term->vt52_mode)
|
|
p += sprintf((char *) p, "\x1B%c", xkey);
|
|
else {
|
|
int app_flg = (term->app_cursor_keys && !term->cfg.no_applic_c);
|
|
|
|
/* Useful mapping of Ctrl-arrows */
|
|
if (modifiers == PKM_CONTROL)
|
|
app_flg = !app_flg;
|
|
|
|
if (app_flg)
|
|
p += sprintf((char *) p, "\x1BO%c", xkey);
|
|
else
|
|
p += sprintf((char *) p, "\x1B[%c", xkey);
|
|
}
|
|
goto done;
|
|
}
|
|
|
|
done:
|
|
if (p > output || tlen > 0) {
|
|
/*
|
|
* Interrupt an ongoing paste. I'm not sure
|
|
* this is sensible, but for the moment it's
|
|
* preferable to having to faff about buffering
|
|
* things.
|
|
*/
|
|
term_nopaste(term);
|
|
|
|
/*
|
|
* We need not bother about stdin backlogs
|
|
* here, because in GUI PuTTY we can't do
|
|
* anything about it anyway; there's no means
|
|
* of asking Windows to hold off on KEYDOWN
|
|
* messages. We _have_ to buffer everything
|
|
* we're sent.
|
|
*/
|
|
term_seen_key_event(term);
|
|
|
|
if (prependesc) {
|
|
#if 0
|
|
fprintf(stderr, "sending ESC\n");
|
|
#endif
|
|
ldisc_send(term->ldisc, "\x1b", 1, 1);
|
|
}
|
|
|
|
if (p > output) {
|
|
#if 0
|
|
fprintf(stderr, "sending %d bytes:", p - output);
|
|
for (i = 0; i < p - output; i++)
|
|
fprintf(stderr, " %02x", output[i]);
|
|
fprintf(stderr, "\n");
|
|
#endif
|
|
ldisc_send(term->ldisc, output, p - output, 1);
|
|
} else if (tlen > 0) {
|
|
#if 0
|
|
fprintf(stderr, "sending %d unichars:", tlen);
|
|
for (i = 0; i < tlen; i++)
|
|
fprintf(stderr, " %04x", (unsigned) text[i]);
|
|
fprintf(stderr, "\n");
|
|
#endif
|
|
luni_send(term->ldisc, text, tlen, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
void term_nopaste(Terminal *term)
|
|
{
|
|
if (term->paste_len == 0)
|
|
return;
|
|
sfree(term->paste_buffer);
|
|
term->paste_buffer = NULL;
|
|
term->paste_len = 0;
|
|
}
|
|
|
|
int term_paste_pending(Terminal *term)
|
|
{
|
|
return term->paste_len != 0;
|
|
}
|
|
|
|
void term_paste(Terminal *term)
|
|
{
|
|
long now, paste_diff;
|
|
|
|
if (term->paste_len == 0)
|
|
return;
|
|
|
|
/* Don't wait forever to paste */
|
|
if (term->paste_hold) {
|
|
now = GETTICKCOUNT();
|
|
paste_diff = now - term->last_paste;
|
|
if (paste_diff >= 0 && paste_diff < 450)
|
|
return;
|
|
}
|
|
term->paste_hold = 0;
|
|
|
|
while (term->paste_pos < term->paste_len) {
|
|
int n = 0;
|
|
while (n + term->paste_pos < term->paste_len) {
|
|
if (term->paste_buffer[term->paste_pos + n++] == '\015')
|
|
break;
|
|
}
|
|
if (term->ldisc)
|
|
luni_send(term->ldisc, term->paste_buffer + term->paste_pos, n, 0);
|
|
term->paste_pos += n;
|
|
|
|
if (term->paste_pos < term->paste_len) {
|
|
term->paste_hold = 1;
|
|
return;
|
|
}
|
|
}
|
|
sfree(term->paste_buffer);
|
|
term->paste_buffer = NULL;
|
|
term->paste_len = 0;
|
|
}
|
|
|
|
static void deselect(Terminal *term)
|
|
{
|
|
term->selstate = NO_SELECTION;
|
|
term->selstart.x = term->selstart.y = term->selend.x = term->selend.y = 0;
|
|
}
|
|
|
|
void term_deselect(Terminal *term)
|
|
{
|
|
deselect(term);
|
|
term_update(term);
|
|
}
|
|
|
|
int term_ldisc(Terminal *term, int option)
|
|
{
|
|
if (option == LD_ECHO)
|
|
return term->term_echoing;
|
|
if (option == LD_EDIT)
|
|
return term->term_editing;
|
|
return FALSE;
|
|
}
|
|
|
|
int term_data(Terminal *term, int is_stderr, const char *data, int len)
|
|
{
|
|
bufchain_add(&term->inbuf, data, len);
|
|
|
|
if (!term->in_term_out) {
|
|
term->in_term_out = TRUE;
|
|
term_reset_cblink(term);
|
|
/*
|
|
* During drag-selects, we do not process terminal input,
|
|
* because the user will want the screen to hold still to
|
|
* be selected.
|
|
*/
|
|
if (term->selstate != DRAGGING)
|
|
term_out(term);
|
|
term->in_term_out = FALSE;
|
|
}
|
|
|
|
/*
|
|
* term_out() always completely empties inbuf. Therefore,
|
|
* there's no reason at all to return anything other than zero
|
|
* from this function, because there _can't_ be a question of
|
|
* the remote side needing to wait until term_out() has cleared
|
|
* a backlog.
|
|
*
|
|
* This is a slightly suboptimal way to deal with SSH-2 - in
|
|
* principle, the window mechanism would allow us to continue
|
|
* to accept data on forwarded ports and X connections even
|
|
* while the terminal processing was going slowly - but we
|
|
* can't do the 100% right thing without moving the terminal
|
|
* processing into a separate thread, and that might hurt
|
|
* portability. So we manage stdout buffering the old SSH-1 way:
|
|
* if the terminal processing goes slowly, the whole SSH
|
|
* connection stops accepting data until it's ready.
|
|
*
|
|
* In practice, I can't imagine this causing serious trouble.
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Write untrusted data to the terminal.
|
|
* The only control character that should be honoured is \n (which
|
|
* will behave as a CRLF).
|
|
*/
|
|
int term_data_untrusted(Terminal *term, const char *data, int len)
|
|
{
|
|
int i;
|
|
/* FIXME: more sophisticated checking? */
|
|
for (i = 0; i < len; i++) {
|
|
if (data[i] == '\n')
|
|
term_data(term, 1, "\r\n", 2);
|
|
else if (data[i] & 0x60)
|
|
term_data(term, 1, data + i, 1);
|
|
}
|
|
return 0; /* assumes that term_data() always returns 0 */
|
|
}
|
|
|
|
void term_provide_logctx(Terminal *term, void *logctx)
|
|
{
|
|
term->logctx = logctx;
|
|
}
|
|
|
|
void term_set_focus(Terminal *term, int has_focus)
|
|
{
|
|
term->has_focus = has_focus;
|
|
term_schedule_cblink(term);
|
|
}
|
|
|
|
/*
|
|
* Provide "auto" settings for remote tty modes, suitable for an
|
|
* application with a terminal window.
|
|
*/
|
|
char *term_get_ttymode(Terminal *term, const char *mode)
|
|
{
|
|
char *val = NULL;
|
|
if (strcmp(mode, "ERASE") == 0) {
|
|
val = term->cfg.bksp_is_delete ? "^?" : "^H";
|
|
}
|
|
/* FIXME: perhaps we should set ONLCR based on cfg.lfhascr as well? */
|
|
return dupstr(val);
|
|
}
|
|
|
|
struct term_userpass_state {
|
|
size_t curr_prompt;
|
|
int done_prompt; /* printed out prompt yet? */
|
|
size_t pos; /* cursor position */
|
|
};
|
|
|
|
/*
|
|
* Process some terminal data in the course of username/password
|
|
* input.
|
|
*/
|
|
int term_get_userpass_input(Terminal *term, prompts_t *p,
|
|
unsigned char *in, int inlen)
|
|
{
|
|
struct term_userpass_state *s = (struct term_userpass_state *)p->data;
|
|
if (!s) {
|
|
/*
|
|
* First call. Set some stuff up.
|
|
*/
|
|
p->data = s = snew(struct term_userpass_state);
|
|
s->curr_prompt = 0;
|
|
s->done_prompt = 0;
|
|
/* We only print the `name' caption if we have to... */
|
|
if (p->name_reqd && p->name) {
|
|
size_t l = strlen(p->name);
|
|
term_data_untrusted(term, p->name, l);
|
|
if (p->name[l-1] != '\n')
|
|
term_data_untrusted(term, "\n", 1);
|
|
}
|
|
/* ...but we always print any `instruction'. */
|
|
if (p->instruction) {
|
|
size_t l = strlen(p->instruction);
|
|
term_data_untrusted(term, p->instruction, l);
|
|
if (p->instruction[l-1] != '\n')
|
|
term_data_untrusted(term, "\n", 1);
|
|
}
|
|
/*
|
|
* Zero all the results, in case we abort half-way through.
|
|
*/
|
|
{
|
|
int i;
|
|
for (i = 0; i < (int)p->n_prompts; i++)
|
|
memset(p->prompts[i]->result, 0, p->prompts[i]->result_len);
|
|
}
|
|
}
|
|
|
|
while (s->curr_prompt < p->n_prompts) {
|
|
|
|
prompt_t *pr = p->prompts[s->curr_prompt];
|
|
int finished_prompt = 0;
|
|
|
|
if (!s->done_prompt) {
|
|
term_data_untrusted(term, pr->prompt, strlen(pr->prompt));
|
|
s->done_prompt = 1;
|
|
s->pos = 0;
|
|
}
|
|
|
|
/* Breaking out here ensures that the prompt is printed even
|
|
* if we're now waiting for user data. */
|
|
if (!in || !inlen) break;
|
|
|
|
/* FIXME: should we be using local-line-editing code instead? */
|
|
while (!finished_prompt && inlen) {
|
|
char c = *in++;
|
|
inlen--;
|
|
switch (c) {
|
|
case 10:
|
|
case 13:
|
|
term_data(term, 0, "\r\n", 2);
|
|
pr->result[s->pos] = '\0';
|
|
pr->result[pr->result_len - 1] = '\0';
|
|
/* go to next prompt, if any */
|
|
s->curr_prompt++;
|
|
s->done_prompt = 0;
|
|
finished_prompt = 1; /* break out */
|
|
break;
|
|
case 8:
|
|
case 127:
|
|
if (s->pos > 0) {
|
|
if (pr->echo)
|
|
term_data(term, 0, "\b \b", 3);
|
|
s->pos--;
|
|
}
|
|
break;
|
|
case 21:
|
|
case 27:
|
|
while (s->pos > 0) {
|
|
if (pr->echo)
|
|
term_data(term, 0, "\b \b", 3);
|
|
s->pos--;
|
|
}
|
|
break;
|
|
case 3:
|
|
case 4:
|
|
/* Immediate abort. */
|
|
term_data(term, 0, "\r\n", 2);
|
|
sfree(s);
|
|
p->data = NULL;
|
|
return 0; /* user abort */
|
|
default:
|
|
/*
|
|
* This simplistic check for printability is disabled
|
|
* when we're doing password input, because some people
|
|
* have control characters in their passwords.
|
|
*/
|
|
if ((!pr->echo ||
|
|
(c >= ' ' && c <= '~') ||
|
|
((unsigned char) c >= 160))
|
|
&& s->pos < pr->result_len - 1) {
|
|
pr->result[s->pos++] = c;
|
|
if (pr->echo)
|
|
term_data(term, 0, &c, 1);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
if (s->curr_prompt < p->n_prompts) {
|
|
return -1; /* more data required */
|
|
} else {
|
|
sfree(s);
|
|
p->data = NULL;
|
|
return +1; /* all done */
|
|
}
|
|
}
|