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/*
Copyright (C) 2015-2017 Alexander Borisov
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 Street, Fifth Floor, Boston, MA 02110-1301 USA
Author: lex.borisov@gmail.com (Alexander Borisov)
*/
#include <stdio.h>
#include <stdlib.h>
#include <myencoding/encoding.h>
#include "example.h"
struct res_html {
char *html;
size_t size;
};
struct res_html load_html_file(const char* filename)
{
FILE *fh = fopen(filename, "rb");
if(fh == NULL) {
fprintf(stderr, "Can't open html file: %s\n", filename);
exit(EXIT_FAILURE);
}
if(fseek(fh, 0L, SEEK_END) != 0) {
fprintf(stderr, "Can't set position (fseek) in file: %s\n", filename);
exit(EXIT_FAILURE);
}
long size = ftell(fh);
if(fseek(fh, 0L, SEEK_SET) != 0) {
fprintf(stderr, "Can't set position (fseek) in file: %s\n", filename);
exit(EXIT_FAILURE);
}
if(size <= 0) {
fprintf(stderr, "Can't get file size or file is empty: %s\n", filename);
exit(EXIT_FAILURE);
}
char *html = (char*)malloc(size + 1);
if(html == NULL) {
fprintf(stderr, "Can't allocate mem for html file: %s\n", filename);
exit(EXIT_FAILURE);
}
size_t nread = fread(html, 1, size, fh);
if (nread != size) {
fprintf(stderr, "could not read %ld bytes (" MyCORE_FMT_Z " bytes done)\n", size, nread);
exit(EXIT_FAILURE);
}
fclose(fh);
struct res_html res = {html, (size_t)size};
return res;
}
int main(int argc, const char * argv[])
{
if (argc != 2) {
printf("Bad ARGV!\nUse: detect_encoding_in_meta_high_level <path_to_html_file>\n");
exit(EXIT_FAILURE);
}
struct res_html res = load_html_file(argv[1]);
myencoding_t encoding = myencoding_prescan_stream_to_determine_encoding(res.html, res.size);
if(encoding == MyENCODING_NOT_DETERMINED) {
printf("Can't detect encoding\n");
}
else {
const char *encoding_name = myencoding_name_by_id(encoding, NULL);
printf("Encoding: %s\n", encoding_name);
}
free(res.html);
return 0;
}
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