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/*
* Mini-Commander Applet
* Copyright (C) 1998 Oliver Maruhn <oliver@maruhn.com>
*
* Author: Oliver Maruhn <oliver@maruhn.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <sys/types.h>
#include <string.h>
#include <stdlib.h>
#include <regex.h>
#include "macro.h"
#include "preferences.h"
/* search for the longest matching prefix */
static MCMacro *
mc_macro_with_prefix (MCData *mc,
char *command)
{
MCMacro *retval = NULL;
GSList *l;
int prefix_len_found = 0;
for (l = mc->preferences.macros; l; l = l->next) {
MCMacro *macro = l->data;
int pattern_len;
pattern_len = strlen (macro->pattern);
if (pattern_len > prefix_len_found &&
!strncmp (command, macro->pattern, pattern_len) &&
(strstr (macro->command, "$1") || pattern_len == strlen (command))) {
/* found a matching prefix;
* if macro does not contain "$1" then the prefix has
* to to have the same length as the command
*/
prefix_len_found = pattern_len;
retval = macro;
}
}
return retval;
}
int
mc_macro_prefix_len (MCData *mc,
char *command)
{
MCMacro *macro;
macro = mc_macro_with_prefix (mc, command);
if (!macro)
return 0;
return strlen (macro->pattern);
}
int
mc_macro_prefix_len_wspace (MCData *mc,
char *command)
{
char *c_ptr;
c_ptr = command + mc_macro_prefix_len (mc, command);
while (*c_ptr != '\0' && *c_ptr == ' ')
c_ptr++;
return c_ptr - command;
}
char *
mc_macro_get_prefix (MCData *mc,
char *command)
{
MCMacro *macro;
macro = mc_macro_with_prefix (mc, command);
if (!macro)
return NULL;
return macro->pattern;
}
void
mc_macro_expand_command (MCData *mc,
char *command)
{
GSList *l;
char command_exec [1000];
command_exec [0] = '\0';
for (l = mc->preferences.macros; l; l = l->next) {
regmatch_t regex_matches [MC_MAX_NUM_MACRO_PARAMETERS];
MCMacro *macro = l->data;
if (regexec (¯o->regex, command, MC_MAX_NUM_MACRO_PARAMETERS, regex_matches, 0) != REG_NOMATCH) {
char placeholder [100];
char *char_p;
int inside_placeholder;
int parameter_number;
inside_placeholder = 0;
for (char_p = macro->command; *char_p != '\0'; ++char_p) {
if (inside_placeholder == 0 &&
*char_p == '\\' &&
*(char_p + 1) >= '0' &&
*(char_p + 1) <= '9') {
strcpy (placeholder, "");
inside_placeholder = 1;
} else if (inside_placeholder &&
(*(char_p + 1) < '0' || *(char_p + 1) > '9'))
inside_placeholder = 2;
if (inside_placeholder == 0)
strncat (command_exec, char_p, 1);
else
strncat (placeholder, char_p, 1);
if (inside_placeholder == 2) {
parameter_number = atoi (placeholder + 1);
if (parameter_number <= MC_MAX_NUM_MACRO_PARAMETERS &&
regex_matches [parameter_number].rm_eo > 0)
strncat (command_exec,
command + regex_matches [parameter_number].rm_so,
regex_matches [parameter_number].rm_eo - regex_matches [parameter_number].rm_so);
inside_placeholder = 0;
}
}
}
}
if (command_exec [0] != '\0')
strcpy (command, command_exec);
}
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