HGKeeper

/* purple

* 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.

* Component written by Tomek Wasilczyk (http://www.wasilczyk.pl).

* This file is dual-licensed under the GPL2+ and the X11 (MIT) licences.

* As a recipient of this file you may choose, which license to receive the

* code under. As a contributor, you have to ensure the new code is

* compatible with both.

* 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 "html.h"

typedef struct

{

GRegex *re_html_attr;

GRegex *re_css_attr;

GRegex *re_color_hex;

GRegex *re_color_rgb;

} ggp_html_global_data;

static ggp_html_global_data global_data;

void ggp_html_setup(void)

{

global_data.re_html_attr = g_regex_new(

"([a-z-]+)=\"([^\"]+)\"",

G_REGEX_OPTIMIZE, 0, NULL);

global_data.re_css_attr = g_regex_new(

"([a-z-]+): *([^;]+)",

G_REGEX_OPTIMIZE, 0, NULL);

global_data.re_color_hex = g_regex_new(

"^#([0-9a-fA-F]+){6}$",

G_REGEX_OPTIMIZE, 0, NULL);

global_data.re_color_rgb = g_regex_new(

"^rgb\$([0-9]+), *([0-9]+), *([0-9]+)\$$",

G_REGEX_OPTIMIZE, 0, NULL);

}

void ggp_html_cleanup(void)

{

g_regex_unref(global_data.re_html_attr);

g_regex_unref(global_data.re_css_attr);

g_regex_unref(global_data.re_color_hex);

g_regex_unref(global_data.re_color_rgb);

}

GHashTable * ggp_html_tag_attribs(const gchar *attribs_str)

{

GMatchInfo *match;

GHashTable *attribs = g_hash_table_new_full(g_str_hash, g_str_equal,

g_free, g_free);

if (attribs_str == NULL)

return attribs;

g_regex_match(global_data.re_html_attr, attribs_str, 0, &match);

while (g_match_info_matches(match)) {

g_hash_table_insert(attribs,

g_match_info_fetch(match, 1),

g_match_info_fetch(match, 2));

g_match_info_next(match, NULL);

}

g_match_info_free(match);

return attribs;

}

GHashTable * ggp_html_css_attribs(const gchar *attribs_str)

{

GMatchInfo *match;

GHashTable *attribs = g_hash_table_new_full(g_str_hash, g_str_equal,

g_free, g_free);

if (attribs_str == NULL)

return attribs;

g_regex_match(global_data.re_css_attr, attribs_str, 0, &match);

while (g_match_info_matches(match)) {

g_hash_table_insert(attribs,

g_match_info_fetch(match, 1),

g_match_info_fetch(match, 2));

g_match_info_next(match, NULL);

}

g_match_info_free(match);

return attribs;

}

int ggp_html_decode_color(const gchar *str)

{

GMatchInfo *match;

int color = -1;

g_regex_match(global_data.re_color_hex, str, 0, &match);

if (g_match_info_matches(match)) {

if (sscanf(str + 1, "%x", &color) != 1)

color = -1;

}

g_match_info_free(match);

if (color >= 0)

return color;

g_regex_match(global_data.re_color_rgb, str, 0, &match);

if (g_match_info_matches(match)) {

int r = -1, g = -1, b = -1;

gchar *c_str;

c_str = g_match_info_fetch(match, 1);

if (c_str)

r = atoi(c_str);

g_free(c_str);

c_str = g_match_info_fetch(match, 2);

if (c_str)

g = atoi(c_str);

g_free(c_str);

c_str = g_match_info_fetch(match, 3);

if (c_str)

b = atoi(c_str);

g_free(c_str);

if (r >= 0 && r < 256 && g >= 0 && g < 256 && b >= 0 && b < 256)

color = (r << 16) | (g << 8) | b;

}

g_match_info_free(match);

if (color >= 0)

return color;

return -1;

}

ggp_html_tag ggp_html_parse_tag(const gchar *tag_str)

{

if (0 == g_ascii_strcasecmp(tag_str, "eom"))

return GGP_HTML_TAG_EOM;

if (0 == g_ascii_strcasecmp(tag_str, "span"))

return GGP_HTML_TAG_SPAN;

if (0 == g_ascii_strcasecmp(tag_str, "div"))

return GGP_HTML_TAG_DIV;

if (0 == g_ascii_strcasecmp(tag_str, "br"))

return GGP_HTML_TAG_BR;

if (0 == g_ascii_strcasecmp(tag_str, "a"))

return GGP_HTML_TAG_A;

if (0 == g_ascii_strcasecmp(tag_str, "b"))

return GGP_HTML_TAG_B;

if (0 == g_ascii_strcasecmp(tag_str, "i"))

return GGP_HTML_TAG_I;

if (0 == g_ascii_strcasecmp(tag_str, "u"))

return GGP_HTML_TAG_U;

if (0 == g_ascii_strcasecmp(tag_str, "s"))

return GGP_HTML_TAG_S;

if (0 == g_ascii_strcasecmp(tag_str, "img"))

return GGP_HTML_TAG_IMG;

if (0 == g_ascii_strcasecmp(tag_str, "font"))

return GGP_HTML_TAG_FONT;

if (0 == g_ascii_strcasecmp(tag_str, "hr"))

return GGP_HTML_TAG_HR;

return GGP_HTML_TAG_UNKNOWN;

}

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