2 * Copyright (C) 2010 Collabora Ltd.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 * Authors: Xavier Claessens <xclaesse@gmail.com>
22 #include "empathy-string-parser.h"
24 #include "empathy-smiley-manager.h"
25 #include "empathy-ui-utils.h"
27 #define SCHEMES "([a-zA-Z\\+]+)"
28 #define INVALID_CHARS "\\s\"<>"
29 #define INVALID_CHARS_EXT INVALID_CHARS "\\[\\](){},;:"
30 #define INVALID_CHARS_FULL INVALID_CHARS_EXT "?'"
31 #define BODY "([^"INVALID_CHARS_FULL"])([^"INVALID_CHARS_EXT"]*)"
32 #define BODY_END "([^"INVALID_CHARS"]*)[^"INVALID_CHARS_FULL".]"
33 #define URI_REGEX "("SCHEMES"://"BODY_END")" \
34 "|((www|ftp)\\."BODY_END")" \
35 "|((mailto:)?"BODY"@"BODY"\\."BODY_END")"
38 uri_regex_dup_singleton (void)
40 static GRegex *uri_regex = NULL;
42 /* We intentionally leak the regex so it's not recomputed */
46 uri_regex = g_regex_new (URI_REGEX, 0, 0, &error);
47 if (uri_regex == NULL) {
48 g_warning ("Failed to create reg exp: %s", error->message);
54 return g_regex_ref (uri_regex);
58 empathy_string_parser_substr (const gchar *text,
60 EmpathyStringParser *parsers,
63 if (parsers != NULL && parsers[0].match_func != NULL) {
64 parsers[0].match_func (text, len,
65 parsers[0].replace_func, parsers + 1,
71 empathy_string_match_link (const gchar *text,
73 EmpathyStringReplace replace_func,
74 EmpathyStringParser *sub_parsers,
78 GMatchInfo *match_info;
82 uri_regex = uri_regex_dup_singleton ();
83 if (uri_regex == NULL) {
84 empathy_string_parser_substr (text, len, sub_parsers, user_data);
88 match = g_regex_match_full (uri_regex, text, len, 0, 0, &match_info, NULL);
93 g_match_info_fetch_pos (match_info, 0, &s, &e);
96 /* Append the text between last link (or the
97 * start of the message) and this link */
98 empathy_string_parser_substr (text + last,
104 replace_func (text + s, e - s, NULL, user_data);
107 } while (g_match_info_next (match_info, NULL));
110 empathy_string_parser_substr (text + last, len - last,
111 sub_parsers, user_data);
113 g_match_info_free (match_info);
114 g_regex_unref (uri_regex);
118 empathy_string_match_smiley (const gchar *text,
120 EmpathyStringReplace replace_func,
121 EmpathyStringParser *sub_parsers,
125 EmpathySmileyManager *smiley_manager;
128 smiley_manager = empathy_smiley_manager_dup_singleton ();
129 hits = empathy_smiley_manager_parse_len (smiley_manager, text, len);
131 for (l = hits; l; l = l->next) {
132 EmpathySmileyHit *hit = l->data;
134 if (hit->start > last) {
135 /* Append the text between last smiley (or the
136 * start of the message) and this smiley */
137 empathy_string_parser_substr (text + last,
139 sub_parsers, user_data);
142 replace_func (text + hit->start, hit->end - hit->start,
147 empathy_smiley_hit_free (hit);
150 g_object_unref (smiley_manager);
152 empathy_string_parser_substr (text + last, len - last,
153 sub_parsers, user_data);
157 empathy_string_match_all (const gchar *text,
159 EmpathyStringReplace replace_func,
160 EmpathyStringParser *sub_parsers,
163 replace_func (text, len, NULL, user_data);
167 empathy_string_replace_link (const gchar *text,
172 GString *string = user_data;
177 real_url = empathy_make_absolute_url_len (text, len);
179 /* Need to copy manually, because g_markup_printf_escaped does not work
180 * with string precision pitfalls. */
181 title = g_strndup (text, len);
183 /* Append the link inside <a href=""></a> tag */
184 markup = g_markup_printf_escaped ("<a href=\"%s\">%s</a>",
187 g_string_append (string, markup);
195 empathy_string_replace_escaped (const gchar *text,
200 GString *string = user_data;
203 gsize escaped_len, old_len;
205 escaped = g_markup_escape_text (text, len);
206 escaped_len = strlen (escaped);
208 /* Allocate more space to string (we really need a g_string_extend...) */
209 old_len = string->len;
210 g_string_set_size (string, old_len + escaped_len);
211 g_string_truncate (string, old_len);
214 for (i = 0; i < escaped_len; i++) {
215 if (escaped[i] != '\r')
216 g_string_append_c (string, escaped[i]);
223 empathy_add_link_markup (const gchar *text)
225 EmpathyStringParser parsers[] = {
226 {empathy_string_match_link, empathy_string_replace_link},
227 {empathy_string_match_all, empathy_string_replace_escaped},
232 g_return_val_if_fail (text != NULL, NULL);
234 string = g_string_sized_new (strlen (text));
235 empathy_string_parser_substr (text, -1, parsers, string);
237 return g_string_free (string, FALSE);