143 lines
4.1 KiB
C
143 lines
4.1 KiB
C
/*
|
|
* Shell script mode for QEmacs.
|
|
*
|
|
* Copyright (c) 2000-2014 Charlie Gordon.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "qe.h"
|
|
|
|
/*---------------- Shell script colors ----------------*/
|
|
|
|
enum {
|
|
SCRIPT_STYLE_TEXT = QE_STYLE_DEFAULT,
|
|
SCRIPT_STYLE_COMMENT = QE_STYLE_COMMENT,
|
|
SCRIPT_STYLE_PREPROCESS = QE_STYLE_PREPROCESS,
|
|
SCRIPT_STYLE_COMMAND = QE_STYLE_FUNCTION,
|
|
SCRIPT_STYLE_VARIABLE = QE_STYLE_TYPE,
|
|
SCRIPT_STYLE_STRING = QE_STYLE_STRING,
|
|
SCRIPT_STYLE_BACKTICK = QE_STYLE_STRING_Q,
|
|
};
|
|
|
|
static int script_var(const unsigned int *str, int j, int n)
|
|
{
|
|
for (; j < n; j++) {
|
|
if (qe_isalnum_(str[j]) || str[j] == '-')
|
|
continue;
|
|
break;
|
|
}
|
|
return j;
|
|
}
|
|
|
|
static void script_colorize_line(QEColorizeContext *cp,
|
|
unsigned int *str, int n, int mode_flags)
|
|
{
|
|
int i = 0, j, c, start, style;
|
|
|
|
style = SCRIPT_STYLE_COMMAND;
|
|
|
|
while (i < n) {
|
|
start = i;
|
|
switch (str[i]) {
|
|
case '#':
|
|
if (i > 0 && str[i - 1] == '$')
|
|
break;
|
|
style = SCRIPT_STYLE_COMMENT;
|
|
if (str[i + 1] == '!')
|
|
style = SCRIPT_STYLE_PREPROCESS;
|
|
i = n;
|
|
SET_COLOR(str, start, i, style);
|
|
continue;
|
|
case '`':
|
|
style = SCRIPT_STYLE_BACKTICK;
|
|
goto has_string;
|
|
case '\'':
|
|
case '"':
|
|
style = SCRIPT_STYLE_STRING;
|
|
has_string:
|
|
/* parse string const */
|
|
for (i++; i < n;) {
|
|
c = str[i++];
|
|
if (c == '\\' && str[i] == '"' && str[start] == '"')
|
|
i++;
|
|
if (c == str[start])
|
|
break;
|
|
}
|
|
SET_COLOR(str, start, i, style);
|
|
if (c == str[start])
|
|
style = SCRIPT_STYLE_TEXT;
|
|
continue;
|
|
case ' ':
|
|
case '\t':
|
|
break;
|
|
default:
|
|
i = script_var(str, i, n);
|
|
if (i > start) {
|
|
j = i;
|
|
while (qe_isblank(str[j]))
|
|
j++;
|
|
if (str[j] == '=')
|
|
style = SCRIPT_STYLE_VARIABLE;
|
|
SET_COLOR(str, start, i, style);
|
|
style = SCRIPT_STYLE_TEXT;
|
|
continue;
|
|
}
|
|
// Should support << syntax
|
|
// Should support $ syntax
|
|
style = SCRIPT_STYLE_TEXT;
|
|
break;
|
|
}
|
|
i++;
|
|
}
|
|
}
|
|
|
|
static int script_mode_probe(ModeDef *mode, ModeProbeData *p)
|
|
{
|
|
if (match_extension(p->filename, mode->extensions))
|
|
return 80;
|
|
|
|
if (p->buf[0] == '#') {
|
|
if (p->buf[1] == '!')
|
|
return 60;
|
|
if (p->buf[1] == ' ')
|
|
return 30;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* specific script commands */
|
|
static CmdDef script_commands[] = {
|
|
CMD_DEF_END,
|
|
};
|
|
|
|
static ModeDef script_mode;
|
|
|
|
static int script_init(void)
|
|
{
|
|
/* Shell-script mode is almost like the text mode, so we copy and patch it */
|
|
memcpy(&script_mode, &text_mode, sizeof(ModeDef));
|
|
script_mode.name = "Shell-script";
|
|
script_mode.extensions = "sh|bash|csh|ksh|zsh";
|
|
script_mode.mode_probe = script_mode_probe;
|
|
script_mode.colorize_func = script_colorize_line;
|
|
|
|
qe_register_mode(&script_mode);
|
|
qe_register_cmd_table(script_commands, &script_mode);
|
|
|
|
return 0;
|
|
}
|
|
|
|
qe_module_init(script_init);
|