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/**
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* 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 Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include "internal.h"
#include "debug.h"
#include "google.h"
#include "jabber.h"
#include "chat.h"
/* This does two passes on the string. The first pass goes through
* and determine if all the structured text is properly balanced, and
* how many instances of each there is. The second pass goes and converts
* everything to HTML, depending on what's figured out by the first pass.
* It will short circuit once it knows it has no more replacements to make
*/
char *jabber_google_format_to_html(const char *text)
{
const char *p;
/* The start of the screen may be consdiered a space for this purpose */
gboolean preceding_space = TRUE;
gboolean in_bold = FALSE, in_italic = FALSE;
gboolean in_tag = FALSE;
gint bold_count = 0, italic_count = 0;
GString *str;
for (p = text; *p != '\0'; p = g_utf8_next_char(p)) {
gunichar c = g_utf8_get_char(p);
if (c == '*' && !in_tag) {
if (in_bold && (g_unichar_isspace(*(p+1)) ||
*(p+1) == '\0' ||
*(p+1) == '<')) {
bold_count++;
in_bold = FALSE;
} else if (preceding_space && !in_bold && !g_unichar_isspace(*(p+1))) {
bold_count++;
in_bold = TRUE;
}
preceding_space = TRUE;
} else if (c == '_' && !in_tag) {
if (in_italic && (g_unichar_isspace(*(p+1)) ||
*(p+1) == '\0' ||
*(p+1) == '<')) {
italic_count++;
in_italic = FALSE;
} else if (preceding_space && !in_italic && !g_unichar_isspace(*(p+1))) {
italic_count++;
in_italic = TRUE;
}
preceding_space = TRUE;
} else if (c == '<' && !in_tag) {
in_tag = TRUE;
} else if (c == '>' && in_tag) {
in_tag = FALSE;
} else if (!in_tag) {
if (g_unichar_isspace(c))
preceding_space = TRUE;
else
preceding_space = FALSE;
}
}
str = g_string_new(NULL);
in_bold = in_italic = in_tag = FALSE;
preceding_space = TRUE;
for (p = text; *p != '\0'; p = g_utf8_next_char(p)) {
gunichar c = g_utf8_get_char(p);
if (bold_count < 2 && italic_count < 2 && !in_bold && !in_italic) {
g_string_append(str, p);
return g_string_free(str, FALSE);
}
if (c == '*' && !in_tag) {
if (in_bold &&
(g_unichar_isspace(*(p+1))||*(p+1)=='<')) { /* This is safe in UTF-8 */
str = g_string_append(str, "</b>");
in_bold = FALSE;
bold_count--;
} else if (preceding_space && bold_count > 1 && !g_unichar_isspace(*(p+1))) {
str = g_string_append(str, "<b>");
bold_count--;
in_bold = TRUE;
} else {
str = g_string_append_unichar(str, c);
}
preceding_space = TRUE;
} else if (c == '_' && !in_tag) {
if (in_italic &&
(g_unichar_isspace(*(p+1))||*(p+1)=='<')) {
str = g_string_append(str, "</i>");
italic_count--;
in_italic = FALSE;
} else if (preceding_space && italic_count > 1 && !g_unichar_isspace(*(p+1))) {
str = g_string_append(str, "<i>");
italic_count--;
in_italic = TRUE;
} else {
str = g_string_append_unichar(str, c);
}
preceding_space = TRUE;
} else if (c == '<' && !in_tag) {
str = g_string_append_unichar(str, c);
in_tag = TRUE;
} else if (c == '>' && in_tag) {
str = g_string_append_unichar(str, c);
in_tag = FALSE;
} else if (!in_tag) {
str = g_string_append_unichar(str, c);
if (g_unichar_isspace(c))
preceding_space = TRUE;
else
preceding_space = FALSE;
} else {
str = g_string_append_unichar(str, c);
}
}
return g_string_free(str, FALSE);
}
void google_buddy_node_chat(PurpleBlistNode *node, gpointer data)
{
PurpleBuddy *buddy;
PurpleConnection *gc;
JabberStream *js;
JabberChat *chat;
gchar *room;
gchar *uuid = purple_uuid_random();
g_return_if_fail(PURPLE_BLIST_NODE_IS_BUDDY(node));
buddy = PURPLE_BUDDY(node);
gc = purple_account_get_connection(purple_buddy_get_account(buddy));
g_return_if_fail(gc != NULL);
js = purple_connection_get_protocol_data(gc);
room = g_strdup_printf("private-chat-%s", uuid);
chat = jabber_join_chat(js, room, GOOGLE_GROUPCHAT_SERVER, js->user->node,
NULL, NULL);
if (chat) {
chat->muc = TRUE;
jabber_chat_invite(gc, chat->id, "", purple_buddy_get_name(buddy));
}
g_free(room);
g_free(uuid);
}
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