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/*
Copyright (C) 2016 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 <string.h>
#include <mycss/mycss.h>
struct res_data {
char *data;
size_t size;
};
struct res_data load_data_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 *data = (char*)malloc(size + 1);
if(data == NULL) {
fprintf(stderr, "Can't allocate mem for html file: %s\n", filename);
exit(EXIT_FAILURE);
}
size_t nread = fread(data, 1, size, fh);
if (nread != size) {
fprintf(stderr, "could not read %ld bytes (%zu bytes done)\n", size, nread);
exit(EXIT_FAILURE);
}
fclose(fh);
struct res_data res = {data, (size_t)size};
return res;
}
void serialization_callback(const char* data, size_t len, void* ctx)
{
printf("%.*s", (int)len, data);
}
int main(int argc, const char * argv[])
{
const char* path;
if (argc == 2) {
path = argv[1];
}
else {
printf("Bad ARGV!\nUse: css_low_level <path_to_css_file>\n");
exit(EXIT_FAILURE);
}
struct res_data res = load_data_file(path);
// basic init
mycss_t *mycss = mycss_create();
mycss_status_t status = mycss_init(mycss);
// current entry work init
mycss_entry_t *entry = mycss_entry_create();
status = mycss_entry_init(mycss, entry);
// parse selectors
status = mycss_parse(entry, MyHTML_ENCODING_UTF_8, res.data, res.size);
if(status) {
fprintf(stderr, "Parse error!\n");
exit(EXIT_FAILURE);
}
/* print result */
printf("Result:\n");
mycss_namespace_serialization_stylesheet(&entry->stylesheet->ns_stylesheet, serialization_callback, NULL);
mycss_stylesheet_serialization(entry->stylesheet, serialization_callback, NULL);
printf("\n");
// destroy all
mycss_entry_destroy(entry, true);
mycss_destroy(mycss, true);
free(res.data);
return 0;
}
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