-const char actions_rcs[] = "$Id: actions.c,v 1.24 2002/03/16 23:54:06 jongfoster Exp $";
+const char actions_rcs[] = "$Id: actions.c,v 1.32.2.6 2006/01/29 23:10:56 david__schmidt Exp $";
/*********************************************************************
*
- * File : $Source: /cvsroot/ijbswa/current/actions.c,v $
+ * File : $Source: /cvsroot/ijbswa/current/Attic/actions.c,v $
*
* Purpose : Declares functions to work with actions files
* Functions declared include: FIXME
*
* Copyright : Written by and Copyright (C) 2001 the SourceForge
- * Privoxy team. http://ijbswa.sourceforge.net
+ * Privoxy team. http://www.privoxy.org/
*
* Based on the Internet Junkbuster originally written
* by and Copyright (C) 1997 Anonymous Coders and
*
* Revisions :
* $Log: actions.c,v $
+ * Revision 1.32.2.6 2006/01/29 23:10:56 david__schmidt
+ * Multiple filter file support
+ *
+ * Revision 1.32.2.5 2005/06/09 01:18:41 david__schmidt
+ * Tweaks to conditionally include pthread.h if FEATURE_PTHREAD is enabled -
+ * this becomes important when jcc.h gets included later down the line.
+ *
+ * Revision 1.32.2.4 2003/12/03 10:33:11 oes
+ * - Implemented Privoxy version requirement through
+ * for-privoxy-version= statement in {{settings}}
+ * block
+ * - Fix for unchecked out-of-memory condition
+ *
+ * Revision 1.32.2.3 2003/02/28 12:52:10 oes
+ * Fixed memory leak reported by Dan Price in Bug #694713
+ *
+ * Revision 1.32.2.2 2002/11/20 14:36:55 oes
+ * Extended unload_current_actions_file() to multiple AFs.
+ * Thanks to Oliver Stoeneberg for the hint.
+ *
+ * Revision 1.32.2.1 2002/05/26 12:13:16 roro
+ * Change unsigned to unsigned long in actions_name struct. This closes
+ * SourceForge Bug #539284.
+ *
+ * Revision 1.32 2002/05/12 21:36:29 jongfoster
+ * Correcting function comments
+ *
+ * Revision 1.31 2002/05/06 07:56:50 oes
+ * Made actions_to_html independent of FEATURE_CGI_EDIT_ACTIONS
+ *
+ * Revision 1.30 2002/04/30 11:14:52 oes
+ * Made csp the first parameter in *action_to_html
+ *
+ * Revision 1.29 2002/04/26 19:30:54 jongfoster
+ * - current_action_to_html(): Adding help link for the "-" form of
+ * one-string actions.
+ * - Some actions had "<br>-", some "<br> -" (note the space).
+ * Standardizing on no space.
+ * - Greatly simplifying some of the code by using string_join()
+ * where appropriate.
+ *
+ * Revision 1.28 2002/04/26 12:53:15 oes
+ * - CGI AF editor now writes action lines split into
+ * single lines with line continuation
+ * - actions_to_html now embeds each action name in
+ * link to chapter
+ * - current_action_to_text is now called current_action_to_html
+ * and acts like actions_to_html
+ *
+ * Revision 1.27 2002/04/24 02:10:31 oes
+ * - Jon's patch for multiple AFs:
+ * - split load_actions_file, add load_one_actions_file
+ * - make csp->actions_list files an array
+ * - remember file id with each action
+ * - Copy_action now frees dest action before copying
+ *
+ * Revision 1.26 2002/03/26 22:29:54 swa
+ * we have a new homepage!
+ *
+ * Revision 1.25 2002/03/24 13:25:43 swa
+ * name change related issues
+ *
* Revision 1.24 2002/03/16 23:54:06 jongfoster
* Adding graceful termination feature, to help look for memory leaks.
* If you enable this (which, by design, has to be done by hand
#include <assert.h>
#include <stdlib.h>
+#ifdef FEATURE_PTHREAD
+#include <pthread.h>
+#endif
+
#include "project.h"
#include "jcc.h"
#include "list.h"
#include "miscutil.h"
#include "errlog.h"
#include "loaders.h"
-#ifdef FEATURE_CGI_EDIT_ACTIONS
#include "encode.h"
-#endif /* def FEATURE_CGI_EDIT_ACTIONS */
#include "urlmatch.h"
+#include "cgi.h"
+#include "ssplit.h"
const char actions_h_rcs[] = ACTIONS_H_VERSION;
struct action_name
{
const char * name;
- unsigned mask; /* a bit set to "0" = remove action */
- unsigned add; /* a bit set to "1" = add action */
- int takes_value; /* an AV_... constant */
- int index; /* index into strings[] or multi[] */
+ unsigned long mask; /* a bit set to "0" = remove action */
+ unsigned long add; /* a bit set to "1" = add action */
+ int takes_value; /* an AV_... constant */
+ int index; /* index into strings[] or multi[] */
};
/*
};
+static int load_one_actions_file(struct client_state *csp, int fileid);
+
+
/*********************************************************************
*
* Function : merge_actions
*
* Description : Merge two actions together.
- * Similar to "cur_action += new_action".
+ * Similar to "dest += src".
*
* Parameters :
- * 1 : cur_action = Current actions, to modify.
- * 2 : new_action = Action to add.
+ * 1 : dest = Actions to modify.
+ * 2 : src = Action to add.
*
* Returns : JB_ERR_OK or JB_ERR_MEMORY
*
* Function : copy_action
*
* Description : Copy an action_specs.
- * Similar to "cur_action = new_action".
- * Note that dest better not contain valid data
- * - it's overwritten, not freed.
+ * Similar to "dest = src".
*
* Parameters :
* 1 : dest = Destination of copy.
int i;
jb_err err = JB_ERR_OK;
+ free_action(dest);
memset(dest, '\0', sizeof(*dest));
dest->mask = src->mask;
* Parameters :
* 1 : line = The string containing the actions.
* Will be written to by this function.
- * 2 : aliases = Custom alias list, or NULL for none.
+ * 2 : alias_list = Custom alias list, or NULL for none.
* 3 : cur_action = Where to store the action. Caller
* allocates memory.
*
}
-static struct file_list *current_actions_file = NULL;
+static struct file_list *current_actions_file[MAX_AF_FILES] = {
+ NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL
+};
#ifdef FEATURE_GRACEFUL_TERMINATION
*********************************************************************/
void unload_current_actions_file(void)
{
- if (current_actions_file)
+ int i;
+
+ for (i = 0; i < MAX_AF_FILES; i++)
{
- current_actions_file->unloader = unload_actions_file;
- current_actions_file = NULL;
+ if (current_actions_file[i])
+ {
+ current_actions_file[i]->unloader = unload_actions_file;
+ current_actions_file[i] = NULL;
+ }
}
}
#endif /* FEATURE_GRACEFUL_TERMINATION */
*
* Function : load_actions_file
*
- * Description : Read and parse a action file and add to files
+ * Description : Read and parse all the action files and add to files
* list.
*
* Parameters :
*
*********************************************************************/
int load_actions_file(struct client_state *csp)
+{
+ int i;
+ int result;
+
+ for (i = 0; i < MAX_AF_FILES; i++)
+ {
+ if (csp->config->actions_file[i])
+ {
+ result = load_one_actions_file(csp, i);
+ if (result)
+ {
+ return result;
+ }
+ }
+ else if (current_actions_file[i])
+ {
+ current_actions_file[i]->unloader = unload_actions_file;
+ current_actions_file[i] = NULL;
+ }
+ }
+
+ return 0;
+}
+
+/*********************************************************************
+ *
+ * Function : load_one_actions_file
+ *
+ * Description : Read and parse a action file and add to files
+ * list.
+ *
+ * Parameters :
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : fileid = File index to load.
+ *
+ * Returns : 0 => Ok, everything else is an error.
+ *
+ *********************************************************************/
+static int load_one_actions_file(struct client_state *csp, int fileid)
{
/*
struct action_alias * alias_list = NULL;
unsigned long linenum = 0;
- if (!check_file_changed(current_actions_file, csp->config->actions_file, &fs))
+ if (!check_file_changed(current_actions_file[fileid], csp->config->actions_file[fileid], &fs))
{
/* No need to load */
- if (csp)
- {
- csp->actions_list = current_actions_file;
- }
+ csp->actions_list[fileid] = current_actions_file[fileid];
return 0;
}
if (!fs)
{
log_error(LOG_LEVEL_FATAL, "can't load actions file '%s': error finding file: %E",
- csp->config->actions_file);
+ csp->config->actions_file[fileid]);
return 1; /* never get here */
}
if (last_perm == NULL)
{
log_error(LOG_LEVEL_FATAL, "can't load actions file '%s': out of memory!",
- csp->config->actions_file);
+ csp->config->actions_file[fileid]);
return 1; /* never get here */
}
- if ((fp = fopen(csp->config->actions_file, "r")) == NULL)
+ if ((fp = fopen(csp->config->actions_file[fileid], "r")) == NULL)
{
log_error(LOG_LEVEL_FATAL, "can't load actions file '%s': error opening file: %E",
- csp->config->actions_file);
+ csp->config->actions_file[fileid]);
return 1; /* never get here */
}
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': invalid line (%lu): %s",
- csp->config->actions_file, linenum, buf);
+ csp->config->actions_file[fileid], linenum, buf);
return 1; /* never get here */
}
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': invalid line (%lu): {{ }}",
- csp->config->actions_file, linenum);
+ csp->config->actions_file[fileid], linenum);
return 1; /* never get here */
}
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': line %lu: {{settings}} must only appear once, and it must be before anything else.",
- csp->config->actions_file, linenum);
+ csp->config->actions_file[fileid], linenum);
}
mode = MODE_SETTINGS;
}
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': line %lu: {{description}} must only appear once, and only a {{settings}} block may be above it.",
- csp->config->actions_file, linenum);
+ csp->config->actions_file[fileid], linenum);
}
mode = MODE_DESCRIPTION;
}
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': line %lu: {{alias}} must only appear once, and it must be before all actions.",
- csp->config->actions_file, linenum);
+ csp->config->actions_file[fileid], linenum);
}
mode = MODE_ALIAS;
}
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': invalid line (%lu): {{%s}}",
- csp->config->actions_file, linenum, start);
+ csp->config->actions_file[fileid], linenum, start);
return 1; /* never get here */
}
}
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': out of memory",
- csp->config->actions_file);
+ csp->config->actions_file[fileid]);
return 1; /* never get here */
}
init_action(cur_action);
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': invalid line (%lu): %s",
- csp->config->actions_file, linenum, buf);
+ csp->config->actions_file[fileid], linenum, buf);
return 1; /* never get here */
}
*end = '\0';
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': invalid line (%lu): %s",
- csp->config->actions_file, linenum, buf);
+ csp->config->actions_file[fileid], linenum, buf);
return 1; /* never get here */
}
}
{
/*
* Part of the {{settings}} block.
- * Ignore for now, but we may want to read & check permissions
- * when we go multi-user.
+ * For now only serves to check if the file's minimum Privoxy
+ * version requirement is met, but we may want to read & check
+ * permissions when we go multi-user.
*/
+ if (!strncmp(buf, "for-privoxy-version=", 20))
+ {
+ char *version_string, *fields[3];
+ int num_fields;
+
+ if ((version_string = strdup(buf + 20)) == NULL)
+ {
+ fclose(fp);
+ log_error(LOG_LEVEL_FATAL,
+ "can't load actions file '%s': out of memory!",
+ csp->config->actions_file[fileid]);
+ return 1; /* never get here */
+ }
+
+ num_fields = ssplit(version_string, ".", fields, 3, TRUE, FALSE);
+
+ if (num_fields < 1 || atoi(fields[0]) == 0)
+ {
+ log_error(LOG_LEVEL_ERROR,
+ "While loading actions file '%s': invalid line (%lu): %s",
+ csp->config->actions_file[fileid], linenum, buf);
+ }
+ else if ( atoi(fields[0]) > VERSION_MAJOR
+ || (num_fields > 1 && atoi(fields[1]) > VERSION_MINOR)
+ || (num_fields > 2 && atoi(fields[2]) > VERSION_POINT))
+ {
+ fclose(fp);
+ log_error(LOG_LEVEL_FATAL,
+ "Actions file '%s', line %lu requires newer Privoxy version: %s",
+ csp->config->actions_file[fileid], linenum, buf );
+ return 1; /* never get here */
+ }
+ free(version_string);
+ }
}
else if (mode == MODE_DESCRIPTION)
{
{
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': invalid alias line (%lu): %s",
- csp->config->actions_file, linenum, buf);
+ csp->config->actions_file[fileid], linenum, buf);
return 1; /* never get here */
}
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': out of memory!",
- csp->config->actions_file);
+ csp->config->actions_file[fileid]);
return 1; /* never get here */
}
{
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': invalid alias line (%lu): %s",
- csp->config->actions_file, linenum, buf);
+ csp->config->actions_file[fileid], linenum, buf);
return 1; /* never get here */
}
- new_alias->name = strdup(buf);
+ if ((new_alias->name = strdup(buf)) == NULL)
+ {
+ fclose(fp);
+ log_error(LOG_LEVEL_FATAL,
+ "can't load actions file '%s': out of memory!",
+ csp->config->actions_file[fileid]);
+ return 1; /* never get here */
+ }
strcpy(actions_buf, start);
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': invalid alias line (%lu): %s = %s",
- csp->config->actions_file, linenum, buf, start);
+ csp->config->actions_file[fileid], linenum, buf, start);
return 1; /* never get here */
}
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': out of memory!",
- csp->config->actions_file);
+ csp->config->actions_file[fileid]);
return 1; /* never get here */
}
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': line %lu: cannot create URL pattern from: %s",
- csp->config->actions_file, linenum, buf);
+ csp->config->actions_file[fileid], linenum, buf);
return 1; /* never get here */
}
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': first needed line (%lu) is invalid: %s",
- csp->config->actions_file, linenum, buf);
+ csp->config->actions_file[fileid], linenum, buf);
return 1; /* never get here */
}
else
fclose(fp);
log_error(LOG_LEVEL_FATAL,
"can't load actions file '%s': INTERNAL ERROR - mode = %d",
- csp->config->actions_file, mode);
+ csp->config->actions_file[fileid], mode);
return 1; /* never get here */
}
}
fclose(fp);
free_action(cur_action);
+ freez(cur_action);
free_alias_list(alias_list);
/* the old one is now obsolete */
- if (current_actions_file)
+ if (current_actions_file[fileid])
{
- current_actions_file->unloader = unload_actions_file;
+ current_actions_file[fileid]->unloader = unload_actions_file;
}
fs->next = files->next;
files->next = fs;
- current_actions_file = fs;
+ current_actions_file[fileid] = fs;
- if (csp)
- {
- csp->actions_list = fs;
- }
+ csp->actions_list[fileid] = fs;
return(0);
*
* Function : actions_to_text
*
- * Description : Converts a actionsfile entry from numeric form
- * ("mask" and "add") to text.
+ * Description : Converts a actionsfile entry from the internal
+ * structurt into a text line. The output is split
+ * into one line for each action with line continuation.
*
* Parameters :
- * 1 : mask = As from struct url_actions
- * 2 : add = As from struct url_actions
+ * 1 : action = The action to format.
*
* Returns : A string. Caller must free it.
* NULL on out-of-memory error.
mask |= add;
-#define DEFINE_ACTION_BOOL(__name, __bit) \
- if (!(mask & __bit)) \
- { \
- string_append(&result, " -" __name); \
- } \
- else if (add & __bit) \
- { \
- string_append(&result, " +" __name); \
+#define DEFINE_ACTION_BOOL(__name, __bit) \
+ if (!(mask & __bit)) \
+ { \
+ string_append(&result, " -" __name " \\\n"); \
+ } \
+ else if (add & __bit) \
+ { \
+ string_append(&result, " +" __name " \\\n"); \
}
#define DEFINE_ACTION_STRING(__name, __bit, __index) \
if (!(mask & __bit)) \
{ \
- string_append(&result, " -" __name); \
+ string_append(&result, " -" __name " \\\n"); \
} \
else if (add & __bit) \
{ \
string_append(&result, " +" __name "{"); \
string_append(&result, action->string[__index]); \
- string_append(&result, "}"); \
+ string_append(&result, "} \\\n"); \
}
#define DEFINE_ACTION_MULTI(__name, __index) \
if (action->multi_remove_all[__index]) \
{ \
- string_append(&result, " -" __name); \
+ string_append(&result, " -" __name " \\\n"); \
} \
else \
{ \
{ \
string_append(&result, " -" __name "{"); \
string_append(&result, lst->str); \
- string_append(&result, "}"); \
+ string_append(&result, "} \\\n"); \
lst = lst->next; \
} \
} \
{ \
string_append(&result, " +" __name "{"); \
string_append(&result, lst->str); \
- string_append(&result, "}"); \
+ string_append(&result, "} \\\n"); \
lst = lst->next; \
}
}
-#ifdef FEATURE_CGI_EDIT_ACTIONS
/*********************************************************************
*
* Function : actions_to_html
*
* Description : Converts a actionsfile entry from numeric form
- * ("mask" and "add") to a <br>-seperated HTML string.
+ * ("mask" and "add") to a <br>-seperated HTML string
+ * in which each action is linked to its chapter in
+ * the user manual.
*
* Parameters :
- * 1 : mask = As from struct url_actions
- * 2 : add = As from struct url_actions
+ * 1 : csp = Client state (for config)
+ * 2 : action = Action spec to be converted
*
* Returns : A string. Caller must free it.
* NULL on out-of-memory error.
*
*********************************************************************/
-char * actions_to_html(struct action_spec *action)
+char * actions_to_html(struct client_state *csp,
+ struct action_spec *action)
{
unsigned mask = action->mask;
unsigned add = action->add;
char * result = strdup("");
- char * enc_str;
struct list_entry * lst;
/* sanity - prevents "-feature +feature" */
#define DEFINE_ACTION_BOOL(__name, __bit) \
if (!(mask & __bit)) \
{ \
- string_append(&result, "\n<br>-" __name); \
+ string_append(&result, "\n<br>-"); \
+ string_join(&result, add_help_link(__name, csp->config)); \
} \
else if (add & __bit) \
{ \
- string_append(&result, "\n<br>+" __name); \
+ string_append(&result, "\n<br>+"); \
+ string_join(&result, add_help_link(__name, csp->config)); \
}
#define DEFINE_ACTION_STRING(__name, __bit, __index) \
if (!(mask & __bit)) \
{ \
- string_append(&result, "\n<br>-" __name); \
+ string_append(&result, "\n<br>-"); \
+ string_join(&result, add_help_link(__name, csp->config)); \
} \
else if (add & __bit) \
{ \
- string_append(&result, "\n<br>+" __name "{"); \
- if (NULL == result) \
- { \
- return NULL; \
- } \
- enc_str = html_encode(action->string[__index]);\
- if (NULL == enc_str) \
- { \
- free(result); \
- return NULL; \
- } \
- string_append(&result, enc_str); \
- free(enc_str); \
+ string_append(&result, "\n<br>+"); \
+ string_join(&result, add_help_link(__name, csp->config)); \
+ string_append(&result, "{"); \
+ string_join(&result, html_encode(action->string[__index])); \
string_append(&result, "}"); \
}
#define DEFINE_ACTION_MULTI(__name, __index) \
if (action->multi_remove_all[__index]) \
{ \
- string_append(&result, "\n<br>-" __name); \
+ string_append(&result, "\n<br>-"); \
+ string_join(&result, add_help_link(__name, csp->config)); \
} \
else \
{ \
lst = action->multi_remove[__index]->first; \
while (lst) \
{ \
- string_append(&result, "\n<br>-" __name "{");\
- if (NULL == result) \
- { \
- return NULL; \
- } \
- enc_str = html_encode(lst->str); \
- if (NULL == enc_str) \
- { \
- free(result); \
- return NULL; \
- } \
- string_append(&result, enc_str); \
- free(enc_str); \
+ string_append(&result, "\n<br>-"); \
+ string_join(&result, add_help_link(__name, csp->config)); \
+ string_append(&result, "{"); \
+ string_join(&result, html_encode(lst->str)); \
string_append(&result, "}"); \
lst = lst->next; \
} \
lst = action->multi_add[__index]->first; \
while (lst) \
{ \
- string_append(&result, "\n<br>+" __name "{"); \
- if (NULL == result) \
- { \
- return NULL; \
- } \
- enc_str = html_encode(lst->str); \
- if (NULL == enc_str) \
- { \
- free(result); \
- return NULL; \
- } \
- string_append(&result, enc_str); \
- free(enc_str); \
+ string_append(&result, "\n<br>+"); \
+ string_join(&result, add_help_link(__name, csp->config)); \
+ string_append(&result, "{"); \
+ string_join(&result, html_encode(lst->str)); \
string_append(&result, "}"); \
lst = lst->next; \
}
return result;
}
-#endif /* def FEATURE_CGI_EDIT_ACTIONS */
/*********************************************************************
*
- * Function : current_actions_to_text
+ * Function : current_actions_to_html
*
- * Description : Converts a actionsfile entry to text.
+ * Description : Converts a curren action spec to a <br> seperated HTML
+ * text in which each action is linked to its chapter in
+ * the user manual.
*
* Parameters :
- * 1 : action = Action
+ * 1 : csp = Client state (for config)
+ * 2 : action = Current action spec to be converted
*
* Returns : A string. Caller must free it.
* NULL on out-of-memory error.
*
*********************************************************************/
-char * current_action_to_text(struct current_action_spec *action)
+char *current_action_to_html(struct client_state *csp,
+ struct current_action_spec *action)
{
unsigned long flags = action->flags;
char * result = strdup("");
#define DEFINE_ACTION_BOOL(__name, __bit) \
if (flags & __bit) \
{ \
- string_append(&result, " +" __name); \
+ string_append(&result, "\n<br>+"); \
+ string_join(&result, add_help_link(__name, csp->config)); \
} \
else \
{ \
- string_append(&result, " -" __name); \
+ string_append(&result, "\n<br>-"); \
+ string_join(&result, add_help_link(__name, csp->config)); \
}
#define DEFINE_ACTION_STRING(__name, __bit, __index) \
if (flags & __bit) \
{ \
- string_append(&result, " +" __name "{"); \
- string_append(&result, action->string[__index]); \
+ string_append(&result, "\n<br>+"); \
+ string_join(&result, add_help_link(__name, csp->config)); \
+ string_append(&result, "{"); \
+ string_join(&result, html_encode(action->string[__index])); \
string_append(&result, "}"); \
} \
else \
{ \
- string_append(&result, " -" __name); \
+ string_append(&result, "\n<br>-"); \
+ string_join(&result, add_help_link(__name, csp->config)); \
}
#define DEFINE_ACTION_MULTI(__name, __index) \
lst = action->multi[__index]->first; \
if (lst == NULL) \
{ \
- string_append(&result, " -" __name); \
+ string_append(&result, "\n<br>-"); \
+ string_join(&result, add_help_link(__name, csp->config)); \
} \
else \
{ \
while (lst) \
{ \
- string_append(&result, " +" __name "{"); \
- string_append(&result, lst->str); \
+ string_append(&result, "\n<br>+"); \
+ string_join(&result, add_help_link(__name, csp->config)); \
+ string_append(&result, "{"); \
+ string_join(&result, html_encode(lst->str)); \
string_append(&result, "}"); \
lst = lst->next; \
} \