144 lines
3.9 KiB
C
144 lines
3.9 KiB
C
/*
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* Lisp Source mode for QEmacs.
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*
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* Copyright (c) 2000-2014 Charlie Gordon.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "qe.h"
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/* TODO: lisp-indent = 2 */
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/*---------------- Lisp colors ----------------*/
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#define IN_COMMENT 0x01
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#define IN_STRING 0x02
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#define LISP_TEXT QE_STYLE_DEFAULT
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#define LISP_COMMENT QE_STYLE_COMMENT
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#define LISP_STRING QE_STYLE_STRING
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static void lisp_colorize_line(unsigned int *str, int n, int *statep,
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__unused__ int state_only)
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{
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int colstate = *statep;
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int i = 0, j = 0;
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if (colstate & IN_STRING) {
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for (j = i; j < n;) {
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if (str[j] == '\\' && ++j < n) {
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j++;
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} else
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if (str[j++] == '"') {
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colstate &= ~IN_STRING;
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break;
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}
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}
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set_color(str + i, str + j, LISP_STRING);
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i = j;
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}
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if (colstate & IN_COMMENT) {
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for (j = i; j < n; j++) {
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if (str[j] == '|' && j + 1 < n && str[j + 1] == '#') {
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j += 2;
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colstate &= ~IN_COMMENT;
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break;
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}
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}
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set_color(str + i, str + j, LISP_COMMENT);
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i = j;
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}
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while (i < n) {
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switch (str[i]) {
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case ';':
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set_color(str + i, str + n, LISP_COMMENT);
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i = n;
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continue;
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case '#':
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/* check for block comment */
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if (str[i + 1] == '|') {
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colstate |= IN_COMMENT;
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for (j = i + 2; j < n; j++) {
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if (str[j] == '|' && str[j + 1] == '#') {
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j += 2;
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colstate &= ~IN_COMMENT;
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break;
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}
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}
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set_color(str + i, str + j, LISP_COMMENT);
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i = j;
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continue;
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}
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break;
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case '"':
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/* parse string const */
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colstate |= IN_STRING;
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for (j = i + 1; j < n;) {
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if (str[j++] == '"') {
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colstate &= ~IN_STRING;
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break;
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}
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}
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set_color(str + i, str + j, LISP_STRING);
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i = j;
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continue;
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default:
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break;
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}
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i++;
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}
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*statep = colstate;
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}
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#undef IN_STRING
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#undef IN_COMMENT
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#undef LISP_TEXT
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#undef LISP_COMMENT
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#undef LISP_STRING
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static int lisp_mode_probe(ModeDef *mode, ModeProbeData *p)
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{
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/* check file name or extension */
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if (match_extension(p->filename, mode->extensions)
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|| strstart(p->filename, ".emacs", NULL))
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return 80;
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return 0;
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}
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/* specific lisp commands */
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static CmdDef lisp_commands[] = {
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CMD_DEF_END,
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};
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ModeDef lisp_mode;
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static int lisp_init(void)
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{
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/* lisp mode is almost like the text mode, so we copy and patch it */
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memcpy(&lisp_mode, &text_mode, sizeof(ModeDef));
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lisp_mode.name = "Lisp";
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lisp_mode.extensions = "ll|li|lh|lo|lm|lisp|el";
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lisp_mode.mode_probe = lisp_mode_probe;
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lisp_mode.colorize_func = lisp_colorize_line;
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qe_register_mode(&lisp_mode);
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qe_register_cmd_table(lisp_commands, &lisp_mode);
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return 0;
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}
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qe_module_init(lisp_init);
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