--- libelwix/src/json.c 2017/11/29 00:49:47 1.1.2.9 +++ libelwix/src/json.c 2018/03/07 12:26:38 1.3.4.1 @@ -3,7 +3,7 @@ * by Michael Pounov * * $Author: misho $ -* $Id: json.c,v 1.1.2.9 2017/11/29 00:49:47 misho Exp $ +* $Id: json.c,v 1.3.4.1 2018/03/07 12:26:38 misho Exp $ * ************************************************************************** The ELWIX and AITNET software is distributed under the following @@ -12,7 +12,7 @@ terms: All of the documentation and software included in the ELWIX and AITNET Releases is copyrighted by ELWIX - Sofia/Bulgaria -Copyright 2004 - 2017 +Copyright 2004 - 2018 by Michael Pounov . All rights reserved. Redistribution and use in source and binary forms, with or without @@ -487,12 +487,13 @@ json_token2num(const char *jstr, jtok_t * __restrict t * * @jstr = JSON string * @key = Search key + * @type = Search key for particular token type, if is J_UNDEF this mean any type * @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) +json_findbykey(const char *jstr, const char *key, jtype_t type, jtok_t * __restrict toks, int toksnum) { jtok_t *tok = NULL; register int i; @@ -507,8 +508,15 @@ json_findbykey(const char *jstr, const char *key, jtok 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; + if (type != J_UNDEF) { + if (toks[i + 1].tok_type == type) { + tok = toks + i + 1; + break; + } + } else { + tok = toks + i + 1; + break; + } } } @@ -563,6 +571,7 @@ json_token2array(const char *jstr, jtok_t * __restrict } } else { elwix_SetErr(J_ERR_PARAM, "%s", jerrstr[J_ERR_PARAM]); + ait_freeVars(&arr); return NULL; } @@ -570,6 +579,7 @@ json_token2array(const char *jstr, jtok_t * __restrict } + /* * json_add_begin_object() - Adds begin of object { * @@ -582,10 +592,14 @@ int json_add_begin_object(char * __restrict jstr, int jlen, int wspace) { int len; + size_t eos; if (!jstr) return -1; + else + eos = strlen(jstr); + if (wspace) len = strlcat(jstr, "{ ", jlen); else @@ -593,6 +607,7 @@ json_add_begin_object(char * __restrict jstr, int jlen if (len >= jlen) { elwix_SetErr(J_ERR_NOMEM, "%s", jerrstr[J_ERR_NOMEM]); + jstr[eos] = 0; return -1; } @@ -611,9 +626,12 @@ int json_add_end_object(char * __restrict jstr, int jlen, int wspace) { int len; + size_t eos; if (!jstr) return -1; + else + eos = strlen(jstr); if (wspace) len = strlcat(jstr, " }", jlen); @@ -622,6 +640,7 @@ json_add_end_object(char * __restrict jstr, int jlen, if (len >= jlen) { elwix_SetErr(J_ERR_NOMEM, "%s", jerrstr[J_ERR_NOMEM]); + jstr[eos] = 0; return -1; } @@ -640,9 +659,12 @@ int json_add_begin_array(char * __restrict jstr, int jlen, int wspace) { int len; + size_t eos; if (!jstr) return -1; + else + eos = strlen(jstr); if (wspace) len = strlcat(jstr, "[ ", jlen); @@ -651,6 +673,7 @@ json_add_begin_array(char * __restrict jstr, int jlen, if (len >= jlen) { elwix_SetErr(J_ERR_NOMEM, "%s", jerrstr[J_ERR_NOMEM]); + jstr[eos] = 0; return -1; } @@ -669,9 +692,12 @@ int json_add_end_array(char * __restrict jstr, int jlen, int wspace) { int len; + size_t eos; if (!jstr) return -1; + else + eos = strlen(jstr); if (wspace) len = strlcat(jstr, " ]", jlen); @@ -680,6 +706,7 @@ json_add_end_array(char * __restrict jstr, int jlen, i if (len >= jlen) { elwix_SetErr(J_ERR_NOMEM, "%s", jerrstr[J_ERR_NOMEM]); + jstr[eos] = 0; return -1; } @@ -702,7 +729,7 @@ json_add_char(char * __restrict jstr, int jlen, u_char if (!jstr) return -1; - len = strlen(jstr); + len = strlen(jstr) + 1; if (len >= jlen) { elwix_SetErr(J_ERR_NOMEM, "%s", jerrstr[J_ERR_NOMEM]); return -1; @@ -726,9 +753,12 @@ int json_add_colon(char * __restrict jstr, int jlen, int wspace) { int len; + size_t eos; if (!jstr) return -1; + else + eos = strlen(jstr); if (wspace) len = strlcat(jstr, ": ", jlen); @@ -737,6 +767,7 @@ json_add_colon(char * __restrict jstr, int jlen, int w if (len >= jlen) { elwix_SetErr(J_ERR_NOMEM, "%s", jerrstr[J_ERR_NOMEM]); + jstr[eos] = 0; return -1; } @@ -755,9 +786,12 @@ int json_add_comma(char * __restrict jstr, int jlen, int wspace) { int len; + size_t eos; if (!jstr) return -1; + else + eos = strlen(jstr); if (wspace) len = strlcat(jstr, ", ", jlen); @@ -766,6 +800,7 @@ json_add_comma(char * __restrict jstr, int jlen, int w if (len >= jlen) { elwix_SetErr(J_ERR_NOMEM, "%s", jerrstr[J_ERR_NOMEM]); + jstr[eos] = 0; return -1; } @@ -785,20 +820,35 @@ int json_add_string(char * __restrict jstr, int jlen, int unquot, const char *str) { int len; + size_t eos; if (!jstr || !str) return -1; + else + eos = strlen(jstr); - if (!unquot) + if (!unquot) { len = strlcat(jstr, "\"", jlen); + if (len >= jlen) { + elwix_SetErr(J_ERR_NOMEM, "%s", jerrstr[J_ERR_NOMEM]); + jstr[eos] = 0; + return -1; + } + } len = strlcat(jstr, str, jlen); - if (!unquot) - len = strlcat(jstr, "\"", jlen); - if (len >= jlen) { elwix_SetErr(J_ERR_NOMEM, "%s", jerrstr[J_ERR_NOMEM]); + jstr[eos] = 0; return -1; } + if (!unquot) { + len = strlcat(jstr, "\"", jlen); + if (len >= jlen) { + elwix_SetErr(J_ERR_NOMEM, "%s", jerrstr[J_ERR_NOMEM]); + jstr[eos] = 0; + return -1; + } + } return len; } @@ -817,21 +867,36 @@ json_add_value(char * __restrict jstr, int jlen, int u { int len; char wrk[STRSIZ] = { [0 ... STRSIZ - 1] = 0 }; + size_t eos; if (!jstr) return -1; + else + eos = strlen(jstr); - if (!unquot) + if (!unquot) { len = strlcat(jstr, "\"", jlen); + if (len >= jlen) { + elwix_SetErr(J_ERR_NOMEM, "%s", jerrstr[J_ERR_NOMEM]); + jstr[eos] = 0; + return -1; + } + } snprintf(wrk, sizeof wrk, "%ld", num); len = strlcat(jstr, wrk, jlen); - if (!unquot) - len = strlcat(jstr, "\"", jlen); - if (len >= jlen) { elwix_SetErr(J_ERR_NOMEM, "%s", jerrstr[J_ERR_NOMEM]); + jstr[eos] = 0; return -1; } + if (!unquot) { + len = strlcat(jstr, "\"", jlen); + if (len >= jlen) { + elwix_SetErr(J_ERR_NOMEM, "%s", jerrstr[J_ERR_NOMEM]); + jstr[eos] = 0; + return -1; + } + } return len; } @@ -850,16 +915,25 @@ int json_add_pair(char * __restrict jstr, int jlen, int wspace, const char *key, const char *val) { int len = -1; + size_t eos; if (!jstr || !key || !val) return -1; + else + eos = strlen(jstr); - if (json_add_string(jstr, jlen, 0, key) == -1) + if (json_add_string(jstr, jlen, 0, key) == -1) { + jstr[eos] = 0; return -1; - if (json_add_colon(jstr, jlen, wspace) == -1) + } + if (json_add_colon(jstr, jlen, wspace) == -1) { + jstr[eos] = 0; return -1; - if ((len = json_add_string(jstr, jlen, 0, key)) == -1) + } + if ((len = json_add_string(jstr, jlen, 0, val)) == -1) { + jstr[eos] = 0; return -1; + } return len; } @@ -879,28 +953,91 @@ json_add_array(char * __restrict jstr, int jlen, int w int len = -1; register int i; ait_val_t *v; + size_t eos; if (!jstr || !arr) return -1; + else + eos = strlen(jstr); - if (json_add_begin_array(jstr, jlen, wspace) == -1) + if (json_add_begin_array(jstr, jlen, wspace) == -1) { + jstr[eos] = 0; return -1; + } for (i = 0; i < array_Size(arr); i++) { v = array(arr, i, ait_val_t*); if (v) { if (AIT_TYPE(v) == string) { - if (json_add_string(jstr, jlen, 0, AIT_GET_STR(v)) == -1) + if (json_add_string(jstr, jlen, 0, AIT_GET_STR(v)) == -1) { + jstr[eos] = 0; return -1; + } } else { - if (json_add_value(jstr, jlen, 0, AIT_GET_LIKE(v, long)) == -1) + if (json_add_value(jstr, jlen, 0, AIT_GET_LIKE(v, long)) == -1) { + jstr[eos] = 0; return -1; + } } - if (i < array_Size(arr) - 1 && json_add_comma(jstr, jlen, wspace) == -1) + if (i < array_Size(arr) - 1 && json_add_comma(jstr, jlen, wspace) == -1) { + jstr[eos] = 0; return -1; + } } } - if ((len = json_add_end_array(jstr, jlen, wspace)) == -1) + if ((len = json_add_end_array(jstr, jlen, wspace)) == -1) { + jstr[eos] = 0; return -1; + } return len; +} + +/* + * json_dump_yaml() - Dump parsed JSON string to YAML format + * + * @f = Output handler + * @jstr = JSON string + * @toks = JSON tokens + * @toksnum = Number of tokens + * @indent = Start indent spaces + * return: 0 done and 1 added one more item + */ +int +json_dump_yaml(FILE *f, const char *jstr, jtok_t *toks, int toksnum, int indent) +{ + register int i, j, k; + + if (!toksnum) + return 0; + + if (toks->tok_type == J_VALUE) { + fprintf(f, "%.*s", (int) json_toklen(toks), json_tokstr(jstr, toks)); + return 1; + } else if (toks->tok_type == J_STRING) { + fprintf(f, "%.*s", (int) json_toklen(toks), json_tokstr(jstr, toks)); + return 1; + } else if (toks->tok_type == J_OBJECT) { + fprintf(f, "\n"); + for (j = i = 0; i < json_toksize(toks); i++) { + for (k = 0; k < indent; k++) + fprintf(f, " "); + j += json_dump_yaml(f, jstr, toks + j + 1, toksnum - j, indent + 1); + fprintf(f, ": "); + j += json_dump_yaml(f, jstr, toks + j + 1, toksnum - j, indent + 1); + fprintf(f, "\n"); + } + return j + 1; + } else if (toks->tok_type == J_ARRAY) { + fprintf(f, "\n"); + for (j = i = 0; i < json_toksize(toks); i++) { + for (k = 0; k < indent - 1; k++) + fprintf(f, " "); + fprintf(f, " - "); + j += json_dump_yaml(f, jstr, toks + j + 1, toksnum - j, indent + 1); + fprintf(f, "\n"); + } + return j + 1; + } + + return 0; }