--- libelwix/src/json.c 2017/11/27 19:37:22 1.1.2.3 +++ libelwix/src/json.c 2017/11/28 00:46:53 1.1.2.4 @@ -3,7 +3,7 @@ * by Michael Pounov * * $Author: misho $ -* $Id: json.c,v 1.1.2.3 2017/11/27 19:37:22 misho Exp $ +* $Id: json.c,v 1.1.2.4 2017/11/28 00:46:53 misho Exp $ * ************************************************************************** The ELWIX and AITNET software is distributed under the following @@ -405,4 +405,158 @@ json_parse(json_t * __restrict json, const char *jstr, } return cx; +} + +/* + * json_token2val() - Return token to AIT variable + * + * @jstr = JSON string + * @tok = Token for convert + * @return =NULL error or !=NULL allocated variable, after use should be ait_freeVar() + */ +ait_val_t * +json_token2val(const char *jstr, jtok_t * __restrict tok) +{ + ait_val_t *v = NULL; + + if (!jstr || !tok) + return NULL; + + v = ait_allocVar(); + if (!v) + return NULL; + + AIT_SET_STRSIZ(v, tok->tok_end - tok->tok_start); + strncpy(AIT_GET_STR(v), jstr + tok->tok_start, AIT_LEN(v) - 1); + + return v; +} + +/* + * json_token2str() - Return token to string + * + * @jstr = JSON string + * @tok = Token for convert + * @return =NULL error or !=NULL allocated str, after use should be e_free() + */ +char * +json_token2str(const char *jstr, jtok_t * __restrict tok) +{ + char *str = NULL; + size_t len; + + if (!jstr || !tok) + return NULL; + + len = tok->tok_end - tok->tok_start; + str = e_malloc(len + 1); + if (!str) + return NULL; + else { + strncpy(str, jstr + tok->tok_start, len); + str[len] = 0; + } + + return str; +} + +/* + * json_token2num() - Return token to numeric + * + * @jstr = JSON string + * @tok = Token for convert + * @return number + */ +long +json_token2num(const char *jstr, jtok_t * __restrict tok) +{ + long ret = 0; + char *str; + + str = json_token2str(jstr, tok); + if (!str) + return 0; + + ret = strtol(str, NULL, 0); + e_free(str); + return ret; +} + +/* + * json_findbykey() - Find data by key + * + * @jstr = JSON string + * @key = Search key + * @toks = Parsed tokens + * @toksnum = Number of parsed tokens + * return: =NULL error or !=NULL data token found + */ +jtok_t * +json_findbykey(const char *jstr, const char *key, jtok_t * __restrict toks, int toksnum) +{ + jtok_t *tok = NULL; + register int i; + int klen; + + if (!jstr || !key || !toks) + return NULL; + else + klen = strlen(key); + + for (i = 1; i < toksnum; i++) { + if (toks[i].tok_type == J_STRING && + klen == toks[i].tok_end - toks[i].tok_start && + !strncmp(jstr + toks[i].tok_start, key, klen)) { + tok = toks + i + 1; + break; + } + } + + return tok; +} + +/* + * json_token2array() - Convert token to array + * + * @jstr = JSON string + * @tok = Token for convert + * return: =NULL error or !=NULL allocated array with variables, + * after use should be ait_freeVars() + */ +array_t * +json_token2array(const char *jstr, jtok_t * __restrict tok) +{ + array_t *arr = NULL; + register int i; + int siz; + ait_val_t *v; + jtok_t *t; + + if (!jstr || !tok) + return NULL; + + siz = tok->tok_size; + if (!siz && tok->tok_type != J_ARRAY && tok->tok_type != J_OBJECT) + siz++; + + arr = ait_allocVars(siz); + if (!arr) + return NULL; + + if (tok->tok_type == J_STRING || tok->tok_type == J_VALUE) { + v = ait_getVars(&arr, 0); + AIT_SET_STRSIZ(v, tok->tok_end - tok->tok_start); + strncpy(AIT_GET_STR(v), jstr + tok->tok_start, AIT_LEN(v) - 1); + } else if (tok->tok_type == J_ARRAY) { + for (i = 0; i < tok->tok_size; i++) { + t = &tok[i + 1]; + v = ait_getVars(&arr, i); + AIT_SET_STRSIZ(v, t->tok_end - t->tok_start); + strncpy(AIT_GET_STR(v), jstr + t->tok_start, AIT_LEN(v) - 1); + } + } else { + /* todo for object */ + } + + return arr; }