зеркало из https://github.com/github/ruby.git
738 строки
18 KiB
C
738 строки
18 KiB
C
/* readline.c -- GNU Readline module
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Copyright (C) 1997-2001 Shugo Maeda */
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#include <stdio.h>
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#include <readline/readline.h>
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#include <readline/history.h>
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#include "ruby.h"
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#include "rubysig.h"
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static VALUE mReadline;
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#define TOLOWER(c) (isupper(c) ? tolower(c) : c)
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#define COMPLETION_PROC "completion_proc"
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#define COMPLETION_CASE_FOLD "completion_case_fold"
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#ifndef READLINE_42_OR_LATER
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# define rl_filename_completion_function filename_completion_function
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# define rl_username_completion_function username_completion_function
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# define rl_completion_matches completion_matches
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#endif
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static int
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readline_event()
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{
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CHECK_INTS;
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rb_thread_schedule();
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return 0;
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}
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static VALUE
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readline_readline(argc, argv, self)
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int argc;
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VALUE *argv;
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VALUE self;
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{
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VALUE tmp, add_hist, result;
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char *prompt = NULL;
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char *buff;
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int status;
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if (rb_scan_args(argc, argv, "02", &tmp, &add_hist) > 0) {
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prompt = StringValuePtr(tmp);
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}
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buff = (char*)rb_protect((VALUE(*)_((VALUE)))readline, (VALUE)prompt,
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&status);
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if (status) {
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#if READLINE_40_OR_LATER
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/* restore terminal mode and signal handler*/
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rl_cleanup_after_signal();
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#elif READLINE_21_OR_LATER
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/* restore terminal mode */
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(*rl_deprep_term_function)();
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#else
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rl_deprep_terminal();
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#endif
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rb_jump_tag(status);
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}
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if (RTEST(add_hist) && buff) {
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add_history(buff);
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}
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if (buff)
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result = rb_tainted_str_new2(buff);
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else
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result = Qnil;
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if (buff) free(buff);
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return result;
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}
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static VALUE
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readline_s_set_completion_proc(self, proc)
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VALUE self;
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VALUE proc;
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{
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if (!rb_respond_to(proc, rb_intern("call")))
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rb_raise(rb_eArgError, "argument have to respond to `call'");
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return rb_iv_set(mReadline, COMPLETION_PROC, proc);
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}
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static VALUE
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readline_s_get_completion_proc(self)
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VALUE self;
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{
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return rb_iv_get(mReadline, COMPLETION_PROC);
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}
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static VALUE
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readline_s_set_completion_case_fold(self, val)
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VALUE self;
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VALUE val;
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{
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return rb_iv_set(mReadline, COMPLETION_CASE_FOLD, val);
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}
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static VALUE
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readline_s_get_completion_case_fold(self)
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VALUE self;
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{
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return rb_iv_get(mReadline, COMPLETION_CASE_FOLD);
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}
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static char **
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readline_attempted_completion_function(text, start, end)
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char *text;
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int start;
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int end;
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{
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VALUE proc, ary, temp;
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char **result;
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int case_fold;
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int i, matches;
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proc = rb_iv_get(mReadline, COMPLETION_PROC);
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if (NIL_P(proc))
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return NULL;
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rl_attempted_completion_over = 1;
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case_fold = RTEST(rb_iv_get(mReadline, COMPLETION_CASE_FOLD));
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ary = rb_funcall(proc, rb_intern("call"), 1, rb_tainted_str_new2(text));
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if (TYPE(ary) != T_ARRAY)
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ary = rb_Array(ary);
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matches = RARRAY(ary)->len;
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if (matches == 0)
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return NULL;
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result = ALLOC_N(char *, matches + 2);
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for (i = 0; i < matches; i++) {
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temp = rb_obj_as_string(RARRAY(ary)->ptr[i]);
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result[i + 1] = ALLOC_N(char, RSTRING(temp)->len + 1);
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strcpy(result[i + 1], RSTRING(temp)->ptr);
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}
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result[matches + 1] = NULL;
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if (matches == 1) {
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result[0] = result[1];
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result[1] = NULL;
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} else {
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register int i = 1;
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int low = 100000;
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while (i < matches) {
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register int c1, c2, si;
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if (case_fold) {
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for (si = 0;
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(c1 = TOLOWER(result[i][si])) &&
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(c2 = TOLOWER(result[i + 1][si]));
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si++)
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if (c1 != c2) break;
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} else {
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for (si = 0;
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(c1 = result[i][si]) &&
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(c2 = result[i + 1][si]);
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si++)
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if (c1 != c2) break;
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}
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if (low > si) low = si;
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i++;
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}
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result[0] = ALLOC_N(char, low + 1);
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strncpy(result[0], result[1], low);
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result[0][low] = '\0';
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}
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return result;
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}
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static VALUE
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readline_s_vi_editing_mode(self)
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VALUE self;
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{
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rl_vi_editing_mode(1,0);
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return Qnil;
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}
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static VALUE
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readline_s_emacs_editing_mode(self)
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VALUE self;
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{
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rl_emacs_editing_mode(1,0);
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return Qnil;
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}
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static VALUE
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readline_s_set_completion_append_character(self, str)
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VALUE self, str;
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{
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#ifdef READLINE_21_OR_LATER
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if (NIL_P(str)) {
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rl_completion_append_character = '\0';
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} else {
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StringValue(str);
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rl_completion_append_character = RSTRING(str)->ptr[0];
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}
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return self;
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#else
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rb_notimplement();
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#endif /* READLINE_21_OR_LATER */
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}
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static VALUE
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readline_s_get_completion_append_character(self)
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VALUE self;
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{
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#ifdef READLINE_21_OR_LATER
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VALUE str;
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if (rl_completion_append_character == '\0')
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return Qnil;
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str = rb_str_new("", 1);
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RSTRING(str)->ptr[0] = rl_completion_append_character;
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return str;
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#else
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rb_notimplement();
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#endif /* READLINE_21_OR_LATER */
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}
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static VALUE
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readline_s_set_basic_word_break_characters(self, str)
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VALUE self, str;
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{
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#ifdef READLINE_21_OR_LATER
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static char *basic_word_break_characters = NULL;
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char *s;
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StringValue(str);
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if (basic_word_break_characters == NULL) {
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basic_word_break_characters =
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ALLOC_N(char, RSTRING(str)->len + 1);
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}
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else {
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REALLOC_N(basic_word_break_characters, char, RSTRING(str)->len + 1);
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}
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strncpy(basic_word_break_characters,
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RSTRING(str)->ptr, RSTRING(str)->len);
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basic_word_break_characters[RSTRING(str)->len] = '\0';
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rl_basic_word_break_characters = basic_word_break_characters;
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return self;
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#else
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rb_notimplement();
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#endif /* READLINE_21_OR_LATER */
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}
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static VALUE
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readline_s_get_basic_word_break_characters(self, str)
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VALUE self, str;
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{
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#ifdef READLINE_21_OR_LATER
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if (rl_basic_word_break_characters == NULL)
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return Qnil;
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return rb_str_new2(rl_basic_word_break_characters);
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#else
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rb_notimplement();
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#endif /* READLINE_21_OR_LATER */
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}
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static VALUE
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readline_s_set_completer_word_break_characters(self, str)
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VALUE self, str;
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{
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#ifdef READLINE_21_OR_LATER
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static char *completer_word_break_characters = NULL;
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char *s;
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StringValue(str);
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if (completer_word_break_characters == NULL) {
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completer_word_break_characters =
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ALLOC_N(char, RSTRING(str)->len + 1);
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}
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else {
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REALLOC_N(completer_word_break_characters, char, RSTRING(str)->len + 1);
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}
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strncpy(completer_word_break_characters,
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RSTRING(str)->ptr, RSTRING(str)->len);
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completer_word_break_characters[RSTRING(str)->len] = '\0';
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rl_completer_word_break_characters = completer_word_break_characters;
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return self;
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#else
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rb_notimplement();
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#endif /* READLINE_21_OR_LATER */
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}
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static VALUE
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readline_s_get_completer_word_break_characters(self, str)
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VALUE self, str;
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{
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#ifdef READLINE_21_OR_LATER
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if (rl_completer_word_break_characters == NULL)
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return Qnil;
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return rb_str_new2(rl_completer_word_break_characters);
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#else
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rb_notimplement();
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#endif /* READLINE_21_OR_LATER */
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}
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static VALUE
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readline_s_set_basic_quote_characters(self, str)
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VALUE self, str;
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{
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#ifdef READLINE_21_OR_LATER
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static char *basic_quote_characters = NULL;
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char *s;
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StringValue(str);
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if (basic_quote_characters == NULL) {
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basic_quote_characters =
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ALLOC_N(char, RSTRING(str)->len + 1);
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}
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else {
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REALLOC_N(basic_quote_characters, char, RSTRING(str)->len + 1);
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}
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strncpy(basic_quote_characters,
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RSTRING(str)->ptr, RSTRING(str)->len);
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basic_quote_characters[RSTRING(str)->len] = '\0';
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rl_basic_quote_characters = basic_quote_characters;
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return self;
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#else
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rb_notimplement();
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#endif /* READLINE_21_OR_LATER */
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}
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static VALUE
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readline_s_get_basic_quote_characters(self, str)
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VALUE self, str;
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{
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#ifdef READLINE_21_OR_LATER
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if (rl_basic_quote_characters == NULL)
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return Qnil;
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return rb_str_new2(rl_basic_quote_characters);
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#else
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rb_notimplement();
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#endif /* READLINE_21_OR_LATER */
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}
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static VALUE
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readline_s_set_completer_quote_characters(self, str)
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VALUE self, str;
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{
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#ifdef READLINE_21_OR_LATER
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static char *completer_quote_characters = NULL;
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char *s;
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StringValue(str);
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if (completer_quote_characters == NULL) {
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completer_quote_characters =
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ALLOC_N(char, RSTRING(str)->len + 1);
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}
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else {
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REALLOC_N(completer_quote_characters, char, RSTRING(str)->len + 1);
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}
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strncpy(completer_quote_characters,
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RSTRING(str)->ptr, RSTRING(str)->len);
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completer_quote_characters[RSTRING(str)->len] = '\0';
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rl_completer_quote_characters = completer_quote_characters;
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return self;
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#else
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rb_notimplement();
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#endif /* READLINE_21_OR_LATER */
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}
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static VALUE
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readline_s_get_completer_quote_characters(self, str)
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VALUE self, str;
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{
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#ifdef READLINE_21_OR_LATER
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if (rl_completer_quote_characters == NULL)
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return Qnil;
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return rb_str_new2(rl_completer_quote_characters);
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#else
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rb_notimplement();
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#endif /* READLINE_21_OR_LATER */
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}
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static VALUE
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readline_s_set_filename_quote_characters(self, str)
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VALUE self, str;
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{
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#ifdef READLINE_21_OR_LATER
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static char *filename_quote_characters = NULL;
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char *s;
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StringValue(str);
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if (filename_quote_characters == NULL) {
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filename_quote_characters =
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ALLOC_N(char, RSTRING(str)->len + 1);
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}
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else {
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REALLOC_N(filename_quote_characters, char, RSTRING(str)->len + 1);
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}
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strncpy(filename_quote_characters,
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RSTRING(str)->ptr, RSTRING(str)->len);
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filename_quote_characters[RSTRING(str)->len] = '\0';
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rl_filename_quote_characters = filename_quote_characters;
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return self;
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#else
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rb_notimplement();
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#endif /* READLINE_21_OR_LATER */
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}
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static VALUE
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readline_s_get_filename_quote_characters(self, str)
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VALUE self, str;
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{
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#ifdef READLINE_21_OR_LATER
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if (rl_filename_quote_characters == NULL)
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return Qnil;
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return rb_str_new2(rl_filename_quote_characters);
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#else
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rb_notimplement();
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#endif /* READLINE_21_OR_LATER */
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}
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static VALUE
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rb_remove_history(index)
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int index;
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{
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HIST_ENTRY *entry;
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VALUE val;
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entry = remove_history(index);
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if (entry) {
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val = rb_tainted_str_new2(entry->line);
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free(entry->line);
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free(entry);
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return val;
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}
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return Qnil;
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}
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static VALUE
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hist_to_s(self)
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VALUE self;
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{
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return rb_str_new2("HISTORY");
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}
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static VALUE
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hist_get(self, index)
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VALUE self;
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VALUE index;
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{
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HISTORY_STATE *state;
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int i;
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state = history_get_history_state();
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i = NUM2INT(index);
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if (i < 0) {
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i += state->length;
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}
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if (i < 0 || i > state->length - 1) {
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rb_raise(rb_eIndexError, "Invalid index");
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}
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return rb_tainted_str_new2(state->entries[i]->line);
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}
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static VALUE
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hist_set(self, index, str)
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VALUE self;
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VALUE index;
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VALUE str;
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{
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HISTORY_STATE *state;
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VALUE s = str;
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int i;
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state = history_get_history_state();
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i = NUM2INT(index);
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if (i < 0) {
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i += state->length;
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}
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if (i < 0 || i > state->length - 1) {
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rb_raise(rb_eIndexError, "Invalid index");
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}
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replace_history_entry(i, StringValuePtr(s), NULL);
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return str;
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}
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static VALUE
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hist_push(self, str)
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VALUE self;
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VALUE str;
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{
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add_history(StringValuePtr(str));
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return self;
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}
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static VALUE
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hist_push_method(argc, argv, self)
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int argc;
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VALUE *argv;
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VALUE self;
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{
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VALUE str;
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while (argc--) {
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str = *argv++;
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add_history(StringValuePtr(str));
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}
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return self;
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}
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static VALUE
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hist_pop(self)
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VALUE self;
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{
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HISTORY_STATE *state;
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state = history_get_history_state();
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if (state->length > 0) {
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return rb_remove_history(state->length - 1);
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} else {
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return Qnil;
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}
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}
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static VALUE
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hist_shift(self)
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VALUE self;
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{
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HISTORY_STATE *state;
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state = history_get_history_state();
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if (state->length > 0) {
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return rb_remove_history(0);
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} else {
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return Qnil;
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}
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}
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static VALUE
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hist_each(self)
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VALUE self;
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{
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HISTORY_STATE *state;
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int i;
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state = history_get_history_state();
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for (i = 0; i < state->length; i++) {
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rb_yield(rb_tainted_str_new2(state->entries[i]->line));
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}
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return self;
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}
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static VALUE
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hist_length(self)
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VALUE self;
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{
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HISTORY_STATE *state;
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state = history_get_history_state();
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return INT2NUM(state->length);
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}
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static VALUE
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hist_empty_p(self)
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VALUE self;
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{
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HISTORY_STATE *state;
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|
state = history_get_history_state();
|
|
if (state->length == 0)
|
|
return Qtrue;
|
|
else
|
|
return Qfalse;
|
|
}
|
|
|
|
static VALUE
|
|
hist_delete_at(self, index)
|
|
VALUE self;
|
|
VALUE index;
|
|
{
|
|
HISTORY_STATE *state;
|
|
int i;
|
|
|
|
state = history_get_history_state();
|
|
i = NUM2INT(index);
|
|
if (i < 0)
|
|
i += state->length;
|
|
if (i < 0 || i > state->length - 1) {
|
|
rb_raise(rb_eIndexError, "Invalid index");
|
|
}
|
|
return rb_remove_history(i);
|
|
}
|
|
|
|
static VALUE
|
|
filename_completion_proc_call(self, str)
|
|
VALUE self;
|
|
VALUE str;
|
|
{
|
|
VALUE result;
|
|
char **matches;
|
|
int i;
|
|
|
|
matches = rl_completion_matches(StringValuePtr(str),
|
|
rl_filename_completion_function);
|
|
if (matches) {
|
|
result = rb_ary_new();
|
|
for (i = 0; matches[i]; i++) {
|
|
rb_ary_push(result, rb_tainted_str_new2(matches[i]));
|
|
free(matches[i]);
|
|
}
|
|
free(matches);
|
|
if (RARRAY(result)->len >= 2)
|
|
rb_ary_shift(result);
|
|
}
|
|
else {
|
|
result = Qnil;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static VALUE
|
|
username_completion_proc_call(self, str)
|
|
VALUE self;
|
|
VALUE str;
|
|
{
|
|
VALUE result;
|
|
char **matches;
|
|
int i;
|
|
|
|
matches = rl_completion_matches(StringValuePtr(str),
|
|
rl_username_completion_function);
|
|
if (matches) {
|
|
result = rb_ary_new();
|
|
for (i = 0; matches[i]; i++) {
|
|
rb_ary_push(result, rb_tainted_str_new2(matches[i]));
|
|
free(matches[i]);
|
|
}
|
|
free(matches);
|
|
if (RARRAY(result)->len >= 2)
|
|
rb_ary_shift(result);
|
|
}
|
|
else {
|
|
result = Qnil;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void
|
|
Init_readline()
|
|
{
|
|
VALUE histary, fcomp, ucomp;
|
|
|
|
/* Allow conditional parsing of the ~/.inputrc file. */
|
|
rl_readline_name = "Ruby";
|
|
|
|
using_history();
|
|
|
|
mReadline = rb_define_module("Readline");
|
|
rb_define_module_function(mReadline, "readline",
|
|
readline_readline, -1);
|
|
rb_define_singleton_method(mReadline, "completion_proc=",
|
|
readline_s_set_completion_proc, 1);
|
|
rb_define_singleton_method(mReadline, "completion_proc",
|
|
readline_s_get_completion_proc, 0);
|
|
rb_define_singleton_method(mReadline, "completion_case_fold=",
|
|
readline_s_set_completion_case_fold, 1);
|
|
rb_define_singleton_method(mReadline, "completion_case_fold",
|
|
readline_s_get_completion_case_fold, 0);
|
|
rb_define_singleton_method(mReadline, "vi_editing_mode",
|
|
readline_s_vi_editing_mode, 0);
|
|
rb_define_singleton_method(mReadline, "emacs_editing_mode",
|
|
readline_s_emacs_editing_mode, 0);
|
|
rb_define_singleton_method(mReadline, "completion_append_character=",
|
|
readline_s_set_completion_append_character, 1);
|
|
rb_define_singleton_method(mReadline, "completion_append_character",
|
|
readline_s_get_completion_append_character, 0);
|
|
rb_define_singleton_method(mReadline, "basic_word_break_characters=",
|
|
readline_s_set_basic_word_break_characters, 1);
|
|
rb_define_singleton_method(mReadline, "basic_word_break_characters",
|
|
readline_s_get_basic_word_break_characters, 0);
|
|
rb_define_singleton_method(mReadline, "completer_word_break_characters=",
|
|
readline_s_set_completer_word_break_characters, 1);
|
|
rb_define_singleton_method(mReadline, "completer_word_break_characters",
|
|
readline_s_get_completer_word_break_characters, 0);
|
|
rb_define_singleton_method(mReadline, "basic_quote_characters=",
|
|
readline_s_set_basic_quote_characters, 1);
|
|
rb_define_singleton_method(mReadline, "basic_quote_characters",
|
|
readline_s_get_basic_quote_characters, 0);
|
|
rb_define_singleton_method(mReadline, "completer_quote_characters=",
|
|
readline_s_set_completer_quote_characters, 1);
|
|
rb_define_singleton_method(mReadline, "completer_quote_characters",
|
|
readline_s_get_completer_quote_characters, 0);
|
|
rb_define_singleton_method(mReadline, "filename_quote_characters=",
|
|
readline_s_set_filename_quote_characters, 1);
|
|
rb_define_singleton_method(mReadline, "filename_quote_characters",
|
|
readline_s_get_filename_quote_characters, 0);
|
|
|
|
histary = rb_obj_alloc(rb_cObject);
|
|
rb_extend_object(histary, rb_mEnumerable);
|
|
rb_define_singleton_method(histary,"to_s", hist_to_s, 0);
|
|
rb_define_singleton_method(histary,"[]", hist_get, 1);
|
|
rb_define_singleton_method(histary,"[]=", hist_set, 2);
|
|
rb_define_singleton_method(histary,"<<", hist_push, 1);
|
|
rb_define_singleton_method(histary,"push", hist_push_method, -1);
|
|
rb_define_singleton_method(histary,"pop", hist_pop, 0);
|
|
rb_define_singleton_method(histary,"shift", hist_shift, 0);
|
|
rb_define_singleton_method(histary,"each", hist_each, 0);
|
|
rb_define_singleton_method(histary,"length", hist_length, 0);
|
|
rb_define_singleton_method(histary,"size", hist_length, 0);
|
|
|
|
rb_define_singleton_method(histary,"empty?", hist_empty_p, 0);
|
|
rb_define_singleton_method(histary,"delete_at", hist_delete_at, 1);
|
|
rb_define_const(mReadline, "HISTORY", histary);
|
|
|
|
fcomp = rb_obj_alloc(rb_cObject);
|
|
rb_define_singleton_method(fcomp, "call",
|
|
filename_completion_proc_call, 1);
|
|
rb_define_const(mReadline, "FILENAME_COMPLETION_PROC", fcomp);
|
|
|
|
ucomp = rb_obj_alloc(rb_cObject);
|
|
rb_define_singleton_method(ucomp, "call",
|
|
username_completion_proc_call, 1);
|
|
rb_define_const(mReadline, "USERNAME_COMPLETION_PROC", ucomp);
|
|
#if READLINE_21_OR_LATER
|
|
rb_define_const(mReadline, "VERSION", rb_str_new2(rl_library_version));
|
|
#else
|
|
rb_define_const(mReadline, "VERSION",
|
|
rb_str_new2("2.0 or before version"));
|
|
#endif
|
|
|
|
rl_attempted_completion_function
|
|
= (CPPFunction *) readline_attempted_completion_function;
|
|
rl_event_hook = readline_event;
|
|
rl_clear_signals();
|
|
}
|