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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 COPYING.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /* HAVE_CONFIG_H */
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include "utils/utils.h"
#include "source-parser.h"
#include "template-parser.h"
#include "loader.h"
#include "error.h"
char*
blogc_file_get_contents(const char *path, size_t *len, blogc_error_t **err)
{
if (err == NULL || *err != NULL)
return NULL;
*len = 0;
FILE *fp = fopen(path, "r");
if (fp == NULL) {
int tmp_errno = errno;
*err = blogc_error_new_printf(BLOGC_ERROR_LOADER,
"Failed to open file (%s): %s", path, strerror(tmp_errno));
return NULL;
}
b_string_t *str = b_string_new();
char buffer[BLOGC_FILE_CHUNK_SIZE];
while (!feof(fp)) {
size_t read_len = fread(buffer, sizeof(char), BLOGC_FILE_CHUNK_SIZE, fp);
*len += read_len;
b_string_append_len(str, buffer, read_len);
}
fclose(fp);
return b_string_free(str, false);
}
char*
blogc_get_filename(const char *f)
{
if (f == NULL)
return NULL;
if (strlen(f) == 0)
return NULL;
// keep a pointer to original string
char *filename = b_strdup(f);
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 = b_strdup(tmp);
free(filename);
return final_filename;
}
b_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;
b_slist_t *rv = blogc_template_parse(s, len, err);
free(s);
return rv;
}
b_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;
b_trie_t *rv = blogc_source_parse(s, len, err);
// set FILENAME variable
if (rv != NULL) {
char *filename = blogc_get_filename(f);
if (filename != NULL)
b_trie_insert(rv, "FILENAME", filename);
}
free(s);
return rv;
}
b_slist_t*
blogc_source_parse_from_files(b_slist_t *l, blogc_error_t **err)
{
blogc_error_t *tmp_err = NULL;
b_slist_t *rv = NULL;
for (b_slist_t *tmp = l; tmp != NULL; tmp = tmp->next) {
char *f = tmp->data;
b_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;
b_slist_free_full(rv, (b_free_func_t) b_trie_free);
rv = NULL;
break;
}
rv = b_slist_append(rv, s);
}
return rv;
}
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