/* The second argument is action, i.e. Open, View or Edit
*
* This function returns:
*
* -1 for a failure or user interrupt
* 0 if no command was run
* 1 if some command was run
*
* If action == "View" then a parameter is checked in the form of "View:%d",
* if the value for %d exists, then the viewer is started up at that line number.
*/
int
regex_command (const char *filename, const char *action, int *move_dir)
{
char *p, *q, *r, c;
int file_len = strlen (filename);
int found = 0;
int error_flag = 0;
int ret = 0;
struct stat mystat;
int view_at_line_number;
char *include_target;
int include_target_len;
int have_type = 0; /* Flag used by regex_check_type() */
/* Check for the special View:%d parameter */
if (strncmp (action, "View:", 5) == 0) {
view_at_line_number = atoi (action + 5);
action = "View";
} else {
view_at_line_number = 0;
}
if (data == NULL) {
char *extension_file;
int mc_user_ext = 1;
int home_error = 0;
extension_file = concat_dir_and_file (home_dir, MC_USER_EXT);
if (!exist_file (extension_file)) {
g_free (extension_file);
check_stock_mc_ext:
extension_file = concat_dir_and_file (mc_home, MC_LIB_EXT);
mc_user_ext = 0;
}
data = load_file (extension_file);
g_free (extension_file);
if (data == NULL)
return 0;
if (!strstr (data, "default/")) {
if (!strstr (data, "regex/") && !strstr (data, "shell/")
&& !strstr (data, "type/")) {
g_free (data);
data = NULL;
if (mc_user_ext) {
home_error = 1;
goto check_stock_mc_ext;
} else {
char *msg;
char *msg2;
msg =
g_strconcat (" ", mc_home, MC_LIB_EXT,
_(" file error "), (char *) NULL);
msg2 =
g_strconcat (_("Format of the "), mc_home,
_("mc.ext file has changed\n"
"with version 3.0. It seems that installation\n"
"failed. Please fetch a fresh new copy from the\n"
"Midnight Commander package."),
(char *) NULL);
message (1, msg, "%s", msg2);
g_free (msg);
g_free (msg2);
return 0;
}
}
}
if (home_error) {
char *msg;
char *msg2;
msg =
g_strconcat (" ~/", MC_USER_EXT, _(" file error "), (char *) NULL);
msg2 =
g_strconcat (_("Format of the "), "~/", MC_USER_EXT,
_(" file has changed\n"
"with version 3.0. You may want either to\n"
"copy it from "), mc_home,
_("mc.ext or use that\n"
"file as an example of how to write it.\n"),
mc_home,
_("mc.ext will be used for this moment."),
(char *) NULL);
message (1, msg, "%s", msg2);
g_free (msg);
g_free (msg2);
}
}
mc_stat (filename, &mystat);
include_target = NULL;
include_target_len = 0;
for (p = data; *p; p++) {
for (q = p; *q == ' ' || *q == '\t'; q++);
if (*q == '\n' || !*q)
p = q; /* empty line */
if (*p == '#') /* comment */
while (*p && *p != '\n')
p++;
if (*p == '\n')
continue;
if (!*p)
break;
if (p == q) { /* i.e. starts in the first column, should be
* keyword/descNL
*/
found = 0;
q = strchr (p, '\n');
if (q == NULL)
q = strchr (p, 0);
c = *q;
*q = 0;
if (include_target) {
if ((strncmp (p, "include/", 8) == 0)
&& (strncmp (p + 8, include_target, include_target_len)
== 0))
found = 1;
} else if (!strncmp (p, "regex/", 6)) {
p += 6;
/* Do not transform shell patterns, you can use shell/ for
* that
*/
if (regexp_match (p, filename, match_regex))
found = 1;
} else if (!strncmp (p, "directory/", 10)) {
if (S_ISDIR (mystat.st_mode)
&& regexp_match (p + 10, filename, match_regex))
found = 1;
} else if (!strncmp (p, "shell/", 6)) {
p += 6;
if (*p == '.' && file_len >= (q - p)) {
if (!strncmp (p, filename + file_len - (q - p), q - p))
found = 1;
} else {
if (q - p == file_len && !strncmp (p, filename, q - p))
found = 1;
}
} else if (!strncmp (p, "type/", 5)) {
int res;
p += 5;
res = regex_check_type (filename, p, &have_type);
if (res == 1)
found = 1;
if (res == -1)
error_flag = 1; /* leave it if file cannot be opened */
} else if (!strncmp (p, "default/", 8)) {
found = 1;
}
*q = c;
p = q;
if (!*p)
break;
} else { /* List of actions */
p = q;
q = strchr (p, '\n');
if (q == NULL)
q = strchr (p, 0);
if (found && !error_flag) {
r = strchr (p, '=');
if (r != NULL) {
c = *r;
*r = 0;
if (strcmp (p, "Include") == 0) {
char *t;
include_target = p + 8;
t = strchr (include_target, '\n');
if (t)
*t = 0;
include_target_len = strlen (include_target);
if (t)
*t = '\n';
*r = c;
p = q;
found = 0;
if (!*p)
break;
continue;
}
if (!strcmp (action, p)) {
*r = c;
for (p = r + 1; *p == ' ' || *p == '\t'; p++);
/* Empty commands just stop searching
* through, they don't do anything
*
* We need to copy the filename because exec_extension
* may end up invoking update_panels thus making the
* filename parameter invalid (ie, most of the time,
* we get filename as a pointer from current_panel->dir).
*/
if (p < q) {
char *filename_copy = g_strdup (filename);
exec_extension (filename_copy, r + 1, move_dir,
view_at_line_number);
g_free (filename_copy);
ret = 1;
}
break;
} else
*r = c;
}
}
p = q;
if (!*p)
break;
}
}
if (error_flag)
return -1;
return ret;
}
int
regex_command_for (void *target, const vfs_path_t * filename_vpath, const char *action,
vfs_path_t ** script_vpath)
{
char *p, *q, *r, c;
size_t file_len;
gboolean found = FALSE;
gboolean error_flag = FALSE;
int ret = 0;
struct stat mystat;
int view_at_line_number;
char *include_target;
int include_target_len;
int have_type = 0; /* Flag used by regex_check_type() */
if (filename_vpath == NULL)
return 0;
if (script_vpath != NULL)
*script_vpath = NULL;
/* Check for the special View:%d parameter */
if (strncmp (action, "View:", 5) == 0)
{
view_at_line_number = atoi (action + 5);
action = "View";
}
else
{
view_at_line_number = 0;
}
if (data == NULL)
{
char *extension_file;
gboolean mc_user_ext = TRUE;
gboolean home_error = FALSE;
extension_file = mc_config_get_full_path (MC_FILEBIND_FILE);
if (!exist_file (extension_file))
{
g_free (extension_file);
check_stock_mc_ext:
extension_file = mc_build_filename (mc_global.sysconfig_dir, MC_LIB_EXT, NULL);
if (!exist_file (extension_file))
{
g_free (extension_file);
extension_file = mc_build_filename (mc_global.share_data_dir, MC_LIB_EXT, NULL);
}
mc_user_ext = FALSE;
}
g_file_get_contents (extension_file, &data, NULL, NULL);
g_free (extension_file);
if (data == NULL)
return 0;
if (strstr (data, "default/") == NULL)
{
if (strstr (data, "regex/") == NULL && strstr (data, "shell/") == NULL &&
strstr (data, "type/") == NULL)
{
g_free (data);
data = NULL;
if (!mc_user_ext)
{
char *title;
title = g_strdup_printf (_(" %s%s file error"),
mc_global.sysconfig_dir, MC_LIB_EXT);
message (D_ERROR, title, _("The format of the %smc.ext "
"file has changed with version 3.0. It seems that "
"the installation failed. Please fetch a fresh "
"copy from the Midnight Commander package."),
mc_global.sysconfig_dir);
g_free (title);
return 0;
}
home_error = TRUE;
goto check_stock_mc_ext;
}
}
if (home_error)
{
char *filebind_filename;
char *title;
filebind_filename = mc_config_get_full_path (MC_FILEBIND_FILE);
title = g_strdup_printf (_("%s file error"), filebind_filename);
message (D_ERROR, title,
_("The format of the %s file has "
"changed with version 3.0. You may either want to copy "
"it from %smc.ext or use that file as an example of how to write it."),
filebind_filename, mc_global.sysconfig_dir);
g_free (filebind_filename);
g_free (title);
}
}
mc_stat (filename_vpath, &mystat);
include_target = NULL;
include_target_len = 0;
file_len = vfs_path_len (filename_vpath);
for (p = data; *p != '\0'; p++)
{
for (q = p; *q == ' ' || *q == '\t'; q++)
;
if (*q == '\n' || *q == '\0')
p = q; /* empty line */
if (*p == '#') /* comment */
while (*p != '\0' && *p != '\n')
p++;
if (*p == '\n')
continue;
if (*p == '\0')
break;
if (p == q)
{ /* i.e. starts in the first column, should be
* keyword/descNL
*/
gboolean case_insense;
found = FALSE;
q = strchr (p, '\n');
if (q == NULL)
q = strchr (p, '\0');
c = *q;
*q = '\0';
if (include_target)
{
if ((strncmp (p, "include/", 8) == 0)
&& (strncmp (p + 8, include_target, include_target_len) == 0))
found = TRUE;
}
else if (strncmp (p, "regex/", 6) == 0)
{
mc_search_t *search;
p += 6;
case_insense = (strncmp (p, "i/", 2) == 0);
if (case_insense)
p += 2;
search = mc_search_new (p, -1);
if (search != NULL)
{
search->search_type = MC_SEARCH_T_REGEX;
search->is_case_sensitive = !case_insense;
found =
mc_search_run (search, vfs_path_as_str (filename_vpath), 0, file_len, NULL);
mc_search_free (search);
}
}
else if (strncmp (p, "directory/", 10) == 0)
{
if (S_ISDIR (mystat.st_mode)
&& mc_search (p + 10, vfs_path_as_str (filename_vpath), MC_SEARCH_T_REGEX))
found = TRUE;
}
else if (strncmp (p, "shell/", 6) == 0)
{
int (*cmp_func) (const char *s1, const char *s2, size_t n) = strncmp;
p += 6;
case_insense = (strncmp (p, "i/", 2) == 0);
if (case_insense)
{
p += 2;
cmp_func = strncasecmp;
}
if (*p == '.' && file_len >= (size_t) (q - p))
{
if (cmp_func
(p, vfs_path_as_str (filename_vpath) + file_len - (q - p), q - p) == 0)
found = TRUE;
}
else
{
if ((size_t) (q - p) == file_len
&& cmp_func (p, vfs_path_as_str (filename_vpath), q - p) == 0)
found = TRUE;
}
}
else if (strncmp (p, "type/", 5) == 0)
{
GError *error = NULL;
p += 5;
case_insense = (strncmp (p, "i/", 2) == 0);
if (case_insense)
p += 2;
found = regex_check_type (filename_vpath, p, &have_type, case_insense, &error);
if (error != NULL)
{
g_error_free (error);
error_flag = TRUE; /* leave it if file cannot be opened */
}
}
else if (strncmp (p, "default/", 8) == 0)
found = TRUE;
*q = c;
p = q;
if (*p == '\0')
break;
}
else
{ /* List of actions */
p = q;
q = strchr (p, '\n');
if (q == NULL)
q = strchr (p, '\0');
if (found && !error_flag)
{
r = strchr (p, '=');
if (r != NULL)
{
c = *r;
*r = '\0';
if (strcmp (p, "Include") == 0)
{
char *t;
include_target = p + 8;
t = strchr (include_target, '\n');
if (t != NULL)
*t = '\0';
include_target_len = strlen (include_target);
if (t != NULL)
*t = '\n';
*r = c;
p = q;
found = FALSE;
if (*p == '\0')
break;
continue;
}
if (strcmp (action, p) != 0)
*r = c;
else
{
*r = c;
for (p = r + 1; *p == ' ' || *p == '\t'; p++)
;
/* Empty commands just stop searching
* through, they don't do anything
*/
if (p < q)
{
vfs_path_t *sv;
sv = exec_extension (target, filename_vpath, r + 1,
view_at_line_number);
if (script_vpath != NULL)
*script_vpath = sv;
else
exec_cleanup_script (sv);
ret = 1;
}
break;
}
}
}
p = q;
if (*p == '\0')
break;
}
}
if (error_flag)
ret = -1;
return ret;
}
