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/*
* Copyright (C) 2010 Collabora Ltd.
*
* 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 2.1 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors: Xavier Claessens <xclaesse@gmail.com>
*/
#include <config.h>
#include <string.h>
#include "empathy-string-parser.h"
#include "empathy-smiley-manager.h"
#define SCHEMES "([a-zA-Z\\+]+)"
#define INVALID_CHARS "\\s\"'"
#define INVALID_CHARS_EXT INVALID_CHARS "\\[\\]<>(){},;:?"
#define BODY "([^"INVALID_CHARS"]+)"
#define BODY_END "([^"INVALID_CHARS"]*)[^"INVALID_CHARS_EXT".]"
#define BODY_STRICT "([^"INVALID_CHARS_EXT"]+)"
#define URI_REGEX "("SCHEMES"://"BODY_END")" \
"|((www|ftp)\\."BODY_END")" \
"|((mailto:)?"BODY_STRICT"@"BODY"\\."BODY_END")"
static GRegex *
uri_regex_dup_singleton (void)
{
static GRegex *uri_regex = NULL;
/* We intentionally leak the regex so it's not recomputed */
if (!uri_regex) {
uri_regex = g_regex_new (URI_REGEX, 0, 0, NULL);
}
return g_regex_ref (uri_regex);
}
void
empathy_string_parser_substr (const gchar *text,
gssize len,
EmpathyStringParser *parsers,
gpointer user_data)
{
if (parsers != NULL && parsers[0].match_func != NULL) {
parsers[0].match_func (text, len,
parsers[0].replace_func, parsers + 1,
user_data);
}
}
void
empathy_string_match_link (const gchar *text,
gssize len,
EmpathyStringReplace replace_func,
EmpathyStringParser *sub_parsers,
gpointer user_data)
{
GRegex *uri_regex;
GMatchInfo *match_info;
gboolean match;
gint last = 0;
uri_regex = uri_regex_dup_singleton ();
match = g_regex_match_full (uri_regex, text, len, 0, 0, &match_info, NULL);
if (match) {
gint s = 0, e = 0;
do {
g_match_info_fetch_pos (match_info, 0, &s, &e);
if (s > last) {
/* Append the text between last link (or the
* start of the message) and this link */
empathy_string_parser_substr (text + last,
s - last,
sub_parsers,
user_data);
}
replace_func (text + s, e - s, NULL, user_data);
last = e;
} while (g_match_info_next (match_info, NULL));
}
empathy_string_parser_substr (text + last, len - last,
sub_parsers, user_data);
g_match_info_free (match_info);
g_regex_unref (uri_regex);
}
void
empathy_string_match_smiley (const gchar *text,
gssize len,
EmpathyStringReplace replace_func,
EmpathyStringParser *sub_parsers,
gpointer user_data)
{
guint last = 0;
EmpathySmileyManager *smiley_manager;
GSList *hits, *l;
smiley_manager = empathy_smiley_manager_dup_singleton ();
hits = empathy_smiley_manager_parse_len (smiley_manager, text, len);
for (l = hits; l; l = l->next) {
EmpathySmileyHit *hit = l->data;
if (hit->start > last) {
/* Append the text between last smiley (or the
* start of the message) and this smiley */
empathy_string_parser_substr (text + last,
hit->start - last,
sub_parsers, user_data);
}
replace_func (text + hit->start, hit->end - hit->start,
hit, user_data);
last = hit->end;
empathy_smiley_hit_free (hit);
}
g_slist_free (hits);
g_object_unref (smiley_manager);
empathy_string_parser_substr (text + last, len - last,
sub_parsers, user_data);
}
void
empathy_string_match_all (const gchar *text,
gssize len,
EmpathyStringReplace replace_func,
EmpathyStringParser *sub_parsers,
gpointer user_data)
{
replace_func (text, len, NULL, user_data);
}
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