2ef06f9131
* pass state and state_only as members of QEColorizeContext * simplify ColorizeFunc, make them more consistent * use offsets instead of pointers to prepare for further API changes
141 lines
3.9 KiB
C
141 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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enum {
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IN_LISP_COMMENT = 0x01,
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IN_LISP_STRING = 0x02,
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};
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enum {
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LISP_STYLE_TEXT = QE_STYLE_DEFAULT,
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LISP_STYLE_COMMENT = QE_STYLE_COMMENT,
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LISP_STYLE_STRING = QE_STYLE_STRING,
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};
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static void lisp_colorize_line(QEColorizeContext *cp,
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unsigned int *str, int n, int mode_flags)
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{
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int colstate = cp->colorize_state;
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int i = 0, start = i;
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if (colstate & IN_LISP_STRING) {
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while (i < n) {
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if (str[i] == '\\' && ++i < n) {
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i++;
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} else
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if (str[i++] == '"') {
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colstate &= ~IN_LISP_STRING;
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break;
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}
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}
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SET_COLOR(str, start, i, LISP_STYLE_STRING);
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}
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if (colstate & IN_LISP_COMMENT) {
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for (; i < n; i++) {
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if (str[i] == '|' && str[i + 1] == '#') {
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i += 2;
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colstate &= ~IN_LISP_COMMENT;
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break;
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}
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}
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SET_COLOR(str, start, i, LISP_STYLE_COMMENT);
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}
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while (i < n) {
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start = i;
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switch (str[i++]) {
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case ';':
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i = n;
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SET_COLOR(str, start, i, LISP_STYLE_COMMENT);
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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] == '|') {
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colstate |= IN_LISP_COMMENT;
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for (i++; i < n; i++) {
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if (str[i] == '|' && str[i + 1] == '#') {
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i += 2;
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colstate &= ~IN_LISP_COMMENT;
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break;
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}
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}
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SET_COLOR(str, start, i, LISP_STYLE_COMMENT);
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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_LISP_STRING;
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while (i < n) {
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if (str[i] == '\\' && ++i < n) {
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i++;
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} else
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if (str[i++] == '"') {
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colstate &= ~IN_LISP_STRING;
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break;
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}
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}
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SET_COLOR(str, start, i, LISP_STYLE_STRING);
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continue;
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default:
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break;
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}
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}
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cp->colorize_state = colstate;
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}
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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 1;
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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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