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/*
* blogc: A blog compiler.
* Copyright (C) 2015 Rafael G. Martins <rafael@rafaelmartins.eng.br>
*
* This program can be distributed under the terms of the BSD License.
* See the file LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /* HAVE_CONFIG_H */
#include <math.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <squareball.h>
#include "file.h"
#include "source-parser.h"
#include "template-parser.h"
#include "loader.h"
#include "error.h"
char*
blogc_get_filename(const char *f)
{
if (f == NULL)
return NULL;
if (strlen(f) == 0)
return NULL;
char *filename = sb_strdup(f);
// keep a pointer to original string
char *tmp = filename;
bool removed_dot = false;
for (int i = strlen(tmp); i >= 0 ; i--) {
// remove last extension
if (!removed_dot && tmp[i] == '.') {
tmp[i] = '\0';
removed_dot = true;
continue;
}
if (tmp[i] == '/' || tmp[i] == '\\') {
tmp += i + 1;
break;
}
}
char *final_filename = sb_strdup(tmp);
free(filename);
return final_filename;
}
sb_slist_t*
blogc_template_parse_from_file(const char *f, blogc_error_t **err)
{
if (err == NULL || *err != NULL)
return NULL;
size_t len;
char *s = blogc_file_get_contents(f, &len, err);
if (s == NULL)
return NULL;
sb_slist_t *rv = blogc_template_parse(s, len, err);
free(s);
return rv;
}
sb_trie_t*
blogc_source_parse_from_file(const char *f, blogc_error_t **err)
{
if (err == NULL || *err != NULL)
return NULL;
size_t len;
char *s = blogc_file_get_contents(f, &len, err);
if (s == NULL)
return NULL;
sb_trie_t *rv = blogc_source_parse(s, len, err);
// set FILENAME variable
if (rv != NULL) {
char *filename = blogc_get_filename(f);
if (filename != NULL)
sb_trie_insert(rv, "FILENAME", filename);
}
free(s);
return rv;
}
sb_slist_t*
blogc_source_parse_from_files(sb_trie_t *conf, sb_slist_t *l, blogc_error_t **err)
{
blogc_error_t *tmp_err = NULL;
sb_slist_t *rv = NULL;
unsigned int with_date = 0;
const char *filter_tag = sb_trie_lookup(conf, "FILTER_TAG");
const char *filter_page = sb_trie_lookup(conf, "FILTER_PAGE");
const char *filter_per_page = sb_trie_lookup(conf, "FILTER_PER_PAGE");
long page = strtol(filter_page != NULL ? filter_page : "", NULL, 10);
if (page <= 0)
page = 1;
long per_page = strtol(filter_per_page != NULL ? filter_per_page : "10",
NULL, 10);
if (per_page <= 0)
per_page = 10;
// poor man's pagination
unsigned int start = (page - 1) * per_page;
unsigned int end = start + per_page;
unsigned int counter = 0;
for (sb_slist_t *tmp = l; tmp != NULL; tmp = tmp->next) {
char *f = tmp->data;
sb_trie_t *s = blogc_source_parse_from_file(f, &tmp_err);
if (s == NULL) {
*err = blogc_error_new_printf(BLOGC_ERROR_LOADER,
"An error occurred while parsing source file: %s\n\n%s",
f, tmp_err->msg);
blogc_error_free(tmp_err);
tmp_err = NULL;
sb_slist_free_full(rv, (sb_free_func_t) sb_trie_free);
rv = NULL;
break;
}
if (filter_tag != NULL) {
const char *tags_str = sb_trie_lookup(s, "TAGS");
// if user wants to filter by tag and no tag is provided, skip it
if (tags_str == NULL) {
sb_trie_free(s);
continue;
}
char **tags = sb_str_split(tags_str, ',', 0);
bool found = false;
for (unsigned int i = 0; tags[i] != NULL; i++)
if (0 == strcmp(sb_str_strip(tags[i]), filter_tag))
found = true;
sb_strv_free(tags);
if (!found) {
sb_trie_free(s);
continue;
}
}
if (filter_page != NULL) {
if (counter < start || counter >= end) {
counter++;
sb_trie_free(s);
continue;
}
counter++;
}
if (sb_trie_lookup(s, "DATE") != NULL)
with_date++;
rv = sb_slist_append(rv, s);
}
if (with_date > 0 && with_date < sb_slist_length(rv))
// fatal error, maybe?
blogc_fprintf(stderr,
"blogc: warning: 'DATE' variable provided for at least one source "
"file, but not for all source files. This means that you may get "
"wrong values for 'DATE_FIRST' and 'DATE_LAST' variables.\n");
bool first = true;
for (sb_slist_t *tmp = rv; tmp != NULL; tmp = tmp->next) {
sb_trie_t *s = tmp->data;
if (first) {
const char *val = sb_trie_lookup(s, "DATE");
if (val != NULL)
sb_trie_insert(conf, "DATE_FIRST", sb_strdup(val));
val = sb_trie_lookup(s, "FILENAME");
if (val != NULL)
sb_trie_insert(conf, "FILENAME_FIRST", sb_strdup(val));
first = false;
}
if (tmp->next == NULL) { // last
const char *val = sb_trie_lookup(s, "DATE");
if (val != NULL)
sb_trie_insert(conf, "DATE_LAST", sb_strdup(val));
val = sb_trie_lookup(s, "FILENAME");
if (val != NULL)
sb_trie_insert(conf, "FILENAME_LAST", sb_strdup(val));
}
}
if (filter_page != NULL) {
unsigned int last_page = ceilf(((float) counter) / per_page);
sb_trie_insert(conf, "CURRENT_PAGE", sb_strdup_printf("%ld", page));
if (page > 1)
sb_trie_insert(conf, "PREVIOUS_PAGE", sb_strdup_printf("%ld", page - 1));
if (page < last_page)
sb_trie_insert(conf, "NEXT_PAGE", sb_strdup_printf("%ld", page + 1));
if (sb_slist_length(rv) > 0)
sb_trie_insert(conf, "FIRST_PAGE", sb_strdup("1"));
if (last_page > 0)
sb_trie_insert(conf, "LAST_PAGE", sb_strdup_printf("%d", last_page));
}
return rv;
}
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