зеркало из https://github.com/github/putty.git
92 строки
2.3 KiB
C
92 строки
2.3 KiB
C
/* $Id: macucs.c,v 1.2 2002/12/04 19:44:57 ben Exp $ */
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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 "putty.h"
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#include "terminal.h"
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#include "misc.h"
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/*
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* Mac Unicode-handling routines.
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*
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* FIXME: currently trivial stub versions assuming all codepages
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* are ISO8859-1.
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*
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* What we _should_ do is to use the Text Encoding Conversion Manager
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* when it's available, and have our own routines for converting to
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* standard Mac OS scripts when it's not. Support for ATSUI might be
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* nice, too.
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*/
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/*
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* Determine whether a byte is the first byte of a double-byte
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* character in a system character set. Only MI use is by clipme()
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* when copying direct-to-font text to the clipboard.
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*/
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int is_dbcs_leadbyte(int codepage, char byte)
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{
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return 0; /* we don't do DBCS */
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}
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/*
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* Convert from Unicode to a system character set. MI uses are:
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* (1) by lpage_send(), whose only MI use is to convert the answerback
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* string to Unicode, and
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* (2) by clipme() when copying direct-to-font text to the clipboard.
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*/
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int mb_to_wc(int codepage, int flags, char *mbstr, int mblen,
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wchar_t *wcstr, int wclen)
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{
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int ret = 0;
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while (mblen > 0 && wclen > 0) {
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*wcstr++ = (unsigned char) *mbstr++;
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mblen--, wclen--, ret++;
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}
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return ret; /* FIXME: check error codes! */
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}
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/*
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* Convert from a system character set to Unicode. Used by luni_send
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* to convert Unicode into the line character set.
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*/
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int wc_to_mb(int codepage, int flags, wchar_t *wcstr, int wclen,
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char *mbstr, int mblen, char *defchr, int *defused)
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{
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int ret = 0;
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if (defused)
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*defused = 0;
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while (mblen > 0 && wclen > 0) {
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if (*wcstr >= 0x100) {
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if (defchr)
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*mbstr++ = *defchr;
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else
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*mbstr++ = '.';
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if (defused)
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*defused = 1;
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} else
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*mbstr++ = (unsigned char) *wcstr;
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wcstr++;
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mblen--, wclen--, ret++;
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}
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return ret; /* FIXME: check error codes! */
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}
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void init_ucs(void)
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{
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int i;
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/* Find the line control characters. FIXME: this is not right. */
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for (i = 0; i < 256; i++)
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if (i < ' ' || (i >= 0x7F && i < 0xA0))
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unitab_ctrl[i] = i;
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else
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unitab_ctrl[i] = 0xFF;
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for (i = 0; i < 256; i++) {
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unitab_line[i] = unitab_scoacs[i] = i;
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unitab_xterm[i] = (i >= 0x5F && i < 0x7F) ? ((i+1) & 0x1F) : i;
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}
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}
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