107 lines
2.0 KiB
C
107 lines
2.0 KiB
C
#include <linux/limits.h>
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#include <dirent.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include "util.h"
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#include "docs.h"
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#define DOCS_LANG_CODE_LEN 2
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bool __docs_parse_name(docs_t *docs, char *ext) {
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// check the extension
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uint64_t ext_pos = util_endswith(docs->name, ext);
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if (ext_pos == 0)
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return false;
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// example.en.json\0 => example.en\0json\0
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docs->name[ext_pos] = 0;
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// example.en\0json\0
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// |
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// `--- find this
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for (docs->lang = docs->name; *docs->lang != 0 && *docs->lang != '.'; docs->lang++)
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continue;
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if (*docs->lang != '.')
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return false;
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// example.en\0json\0 => example.en\0json\0
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*docs->lang++ = 0;
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// example\0en\0json
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// | | |
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// | | `--- ext_pos
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// | `-- lang
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// `-- name
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return strlen(docs->lang) == DOCS_LANG_CODE_LEN && *docs->name != 0;
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}
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void __docs_clean(docs_t *docs) {
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if (NULL == docs->file)
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return;
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util_file_free(docs->file);
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docs->file = NULL;
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}
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bool docs_init(docs_t *docs, char *dir) {
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if (NULL == docs || NULL == dir) {
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errno = EINVAL;
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return false;
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}
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bzero(docs, sizeof(*docs));
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return NULL != (docs->dir = opendir(dir));
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}
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char *docs_next(docs_t *docs, char *name, bool content) {
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if (NULL == docs) {
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errno = EINVAL;
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return false;
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}
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struct dirent *ent = NULL;
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__docs_clean(docs);
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while (NULL != (ent = readdir(docs->dir))) {
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if (*ent->d_name == '.')
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continue;
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strcpy(docs->name, ent->d_name);
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if (!__docs_parse_name(docs, content ? ".md" : ".json"))
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continue;
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if (NULL == name || strncmp(docs->name, name, NAME_MAX) == 0)
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break;
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}
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if (NULL == ent) {
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errno = ENOENT;
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return NULL;
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}
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if (NULL == (docs->file = util_file_load(dirfd(docs->dir), ent->d_name)))
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return NULL;
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return docs->file->content;
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}
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void docs_reset(docs_t *docs) {
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if (NULL != docs)
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rewinddir(docs->dir);
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}
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void docs_free(docs_t *docs) {
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if (NULL == docs)
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return;
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__docs_clean(docs);
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closedir(docs->dir);
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bzero(docs, sizeof(*docs));
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}
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