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https://gitlab.com/gnuwget/wget2.git
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87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
/*
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* Copyright(c) 2013 Tim Ruehsen
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* Copyright(c) 2015 Free Software Foundation, Inc.
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*
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* This file is part of libwget.
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*
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* Libwget is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Libwget is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with libwget. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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* Example for HTML parsing using libwget
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*
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* Changelog
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* 03.01.2014 Tim Ruehsen created
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*
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* Demonstrate how to extract URIs from HTML files using callback functions.
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* We don't care about character encoding in this example.
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*
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*/
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#if HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <unistd.h>
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#include <libwget.h>
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static void html_parse_localfile(const char *fname)
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{
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char *data;
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if ((data = wget_read_file(fname, NULL))) {
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WGET_HTML_PARSED_RESULT *res = wget_html_get_urls_inline(data, NULL, NULL);
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if (res->encoding)
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printf("URI encoding '%s'\n", res->encoding);
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for (int it = 0; it < wget_vector_size(res->uris); it++) {
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WGET_HTML_PARSED_URL *html_url = wget_vector_get(res->uris, it);
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wget_string_t *url = &html_url->url;
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printf(" %s.%s '%.*s'\n", html_url->dir, html_url->attr, (int) url->len, url->p);
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}
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wget_xfree(data);
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wget_html_free_urls_inline(&res);
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}
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}
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int main(int argc, const char *const *argv)
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{
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/*
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wget_global_init(
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WGET_DEBUG_STREAM, stderr,
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WGET_ERROR_STREAM, stderr,
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WGET_INFO_STREAM, stdout,
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NULL);
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*/
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if (!isatty(STDIN_FILENO)) {
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// read HTML data from STDIN
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html_parse_localfile("-");
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} else {
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// parse CSS files given as arguments
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int argpos;
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for (argpos = 1; argpos < argc; argpos++) {
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printf("%s:\n", argv[argpos]);
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// use '-' as filename for STDIN
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html_parse_localfile(argv[argpos]);
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}
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}
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return 0;
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}
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