C-based memory friendly JSON parser based on Serge Zaitsev's JSMN (https://bitbucket.org/zserge/jsmn/wiki/Home)
Dependents: _library_jsmn _library_jsmn _library_jsmn
JSMN
jsmn (pronounced like 'jasmine') is a minimalistic JSON parser in C. It can be easily integrated into resource-limited or embedded projects.
You can find more information about JSON format at json.org
Library sources are available at https://bitbucket.org/zserge/jsmn
The web page with some information about jsmn can be found at http://zserge.com/jsmn.html
jsmn.cpp@2:5167da2fcc4e, 2014-11-17 (annotated)
- Committer:
- yoonghm
- Date:
- Mon Nov 17 16:09:04 2014 +0000
- Revision:
- 2:5167da2fcc4e
- Parent:
- 1:70061827a9c8
Updated copyright information.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
yoonghm | 0:46575249ef23 | 1 | /* C-based low-memory footprint JSON parser for mbed |
yoonghm | 0:46575249ef23 | 2 | * Based on Serge Zaitsev's JSMN https://bitbucket.org/zserge/jsmn/wiki/Home |
yoonghm | 0:46575249ef23 | 3 | * JSMN is distributed under MIT license. |
yoonghm | 0:46575249ef23 | 4 | * |
yoonghm | 2:5167da2fcc4e | 5 | * Copyright (c) 2010 Serge A. Zaitsev |
yoonghm | 0:46575249ef23 | 6 | * Copyright (c) 2014 YoongHM |
yoonghm | 0:46575249ef23 | 7 | * |
yoonghm | 0:46575249ef23 | 8 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
yoonghm | 0:46575249ef23 | 9 | * of this software and associated documentation files (the "Software"), to deal |
yoonghm | 0:46575249ef23 | 10 | * in the Software without restriction, including without limitation the rights |
yoonghm | 0:46575249ef23 | 11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
yoonghm | 0:46575249ef23 | 12 | * copies of the Software, and to permit persons to whom the Software is |
yoonghm | 0:46575249ef23 | 13 | * furnished to do so, subject to the following conditions: |
yoonghm | 0:46575249ef23 | 14 | * |
yoonghm | 0:46575249ef23 | 15 | * The above copyright notice and this permission notice shall be included in |
yoonghm | 0:46575249ef23 | 16 | * all copies or substantial portions of the Software. |
yoonghm | 0:46575249ef23 | 17 | * |
yoonghm | 0:46575249ef23 | 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
yoonghm | 0:46575249ef23 | 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
yoonghm | 0:46575249ef23 | 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
yoonghm | 0:46575249ef23 | 21 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
yoonghm | 0:46575249ef23 | 22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
yoonghm | 0:46575249ef23 | 23 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
yoonghm | 0:46575249ef23 | 24 | * THE SOFTWARE. |
yoonghm | 0:46575249ef23 | 25 | */ |
yoonghm | 0:46575249ef23 | 26 | |
yoonghm | 0:46575249ef23 | 27 | #include <stdlib.h> |
yoonghm | 1:70061827a9c8 | 28 | #include "mbed.h" |
yoonghm | 0:46575249ef23 | 29 | |
yoonghm | 0:46575249ef23 | 30 | #include "jsmn.h" |
yoonghm | 0:46575249ef23 | 31 | |
yoonghm | 0:46575249ef23 | 32 | |
yoonghm | 0:46575249ef23 | 33 | /** |
yoonghm | 0:46575249ef23 | 34 | * Allocates a fresh unused token from the token pull. |
yoonghm | 0:46575249ef23 | 35 | */ |
yoonghm | 0:46575249ef23 | 36 | static jsmntok_t * |
yoonghm | 0:46575249ef23 | 37 | jsmn_alloc_token |
yoonghm | 0:46575249ef23 | 38 | (jsmn_parser *parser |
yoonghm | 0:46575249ef23 | 39 | ,jsmntok_t *tokens |
yoonghm | 0:46575249ef23 | 40 | ,size_t num_tokens |
yoonghm | 0:46575249ef23 | 41 | ) |
yoonghm | 0:46575249ef23 | 42 | { |
yoonghm | 0:46575249ef23 | 43 | jsmntok_t *tok; |
yoonghm | 1:70061827a9c8 | 44 | |
yoonghm | 0:46575249ef23 | 45 | if (parser->toknext >= num_tokens) |
yoonghm | 0:46575249ef23 | 46 | { |
yoonghm | 0:46575249ef23 | 47 | return NULL; |
yoonghm | 0:46575249ef23 | 48 | } |
yoonghm | 0:46575249ef23 | 49 | tok = &tokens[parser->toknext++]; |
yoonghm | 0:46575249ef23 | 50 | tok->start = tok->end = -1; |
yoonghm | 0:46575249ef23 | 51 | tok->size = 0; |
yoonghm | 0:46575249ef23 | 52 | tok->parent = -1; |
yoonghm | 0:46575249ef23 | 53 | return tok; |
yoonghm | 0:46575249ef23 | 54 | } |
yoonghm | 0:46575249ef23 | 55 | |
yoonghm | 0:46575249ef23 | 56 | |
yoonghm | 0:46575249ef23 | 57 | /** |
yoonghm | 0:46575249ef23 | 58 | * Fills token type and boundaries. |
yoonghm | 0:46575249ef23 | 59 | */ |
yoonghm | 0:46575249ef23 | 60 | static void |
yoonghm | 0:46575249ef23 | 61 | jsmn_fill_token |
yoonghm | 0:46575249ef23 | 62 | (jsmntok_t *token |
yoonghm | 0:46575249ef23 | 63 | ,jsmntype_t type |
yoonghm | 0:46575249ef23 | 64 | ,int start |
yoonghm | 0:46575249ef23 | 65 | ,int end |
yoonghm | 0:46575249ef23 | 66 | ) |
yoonghm | 0:46575249ef23 | 67 | { |
yoonghm | 0:46575249ef23 | 68 | token->type = type; |
yoonghm | 0:46575249ef23 | 69 | token->start = start; |
yoonghm | 0:46575249ef23 | 70 | token->end = end; |
yoonghm | 0:46575249ef23 | 71 | token->size = 0; |
yoonghm | 0:46575249ef23 | 72 | } |
yoonghm | 0:46575249ef23 | 73 | |
yoonghm | 0:46575249ef23 | 74 | |
yoonghm | 0:46575249ef23 | 75 | /** |
yoonghm | 0:46575249ef23 | 76 | * Fills next available token with JSON primitive. |
yoonghm | 0:46575249ef23 | 77 | */ |
yoonghm | 0:46575249ef23 | 78 | static int |
yoonghm | 0:46575249ef23 | 79 | jsmn_parse_primitive |
yoonghm | 0:46575249ef23 | 80 | (jsmn_parser *parser |
yoonghm | 0:46575249ef23 | 81 | ,const char *js |
yoonghm | 0:46575249ef23 | 82 | ,size_t len |
yoonghm | 0:46575249ef23 | 83 | ,jsmntok_t *tokens |
yoonghm | 0:46575249ef23 | 84 | ,size_t num_tokens |
yoonghm | 0:46575249ef23 | 85 | ) |
yoonghm | 0:46575249ef23 | 86 | { |
yoonghm | 0:46575249ef23 | 87 | jsmntok_t *token; |
yoonghm | 0:46575249ef23 | 88 | int start; |
yoonghm | 0:46575249ef23 | 89 | |
yoonghm | 0:46575249ef23 | 90 | start = parser->pos; |
yoonghm | 0:46575249ef23 | 91 | |
yoonghm | 0:46575249ef23 | 92 | for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) |
yoonghm | 0:46575249ef23 | 93 | { |
yoonghm | 0:46575249ef23 | 94 | switch (js[parser->pos]) |
yoonghm | 0:46575249ef23 | 95 | { |
yoonghm | 0:46575249ef23 | 96 | case '\t': |
yoonghm | 0:46575249ef23 | 97 | case '\r': |
yoonghm | 0:46575249ef23 | 98 | case '\n': |
yoonghm | 0:46575249ef23 | 99 | case ' ' : |
yoonghm | 0:46575249ef23 | 100 | case ',' : |
yoonghm | 0:46575249ef23 | 101 | case ']' : |
yoonghm | 0:46575249ef23 | 102 | case '}' : |
yoonghm | 0:46575249ef23 | 103 | goto found; |
yoonghm | 0:46575249ef23 | 104 | } |
yoonghm | 0:46575249ef23 | 105 | if (js[parser->pos] < 32 || js[parser->pos] >= 127) |
yoonghm | 0:46575249ef23 | 106 | { |
yoonghm | 0:46575249ef23 | 107 | parser->pos = start; |
yoonghm | 1:70061827a9c8 | 108 | printf("%s:%d: parser->pos=%d\r\n", __FILE__, __LINE__, parser->pos); |
yoonghm | 0:46575249ef23 | 109 | return JSMN_ERR_INVAL; |
yoonghm | 0:46575249ef23 | 110 | } |
yoonghm | 0:46575249ef23 | 111 | } |
yoonghm | 0:46575249ef23 | 112 | parser->pos = start; |
yoonghm | 0:46575249ef23 | 113 | return JSMN_ERR_PART; |
yoonghm | 0:46575249ef23 | 114 | |
yoonghm | 0:46575249ef23 | 115 | found: |
yoonghm | 0:46575249ef23 | 116 | if (tokens == NULL) |
yoonghm | 0:46575249ef23 | 117 | { |
yoonghm | 0:46575249ef23 | 118 | parser->pos--; |
yoonghm | 0:46575249ef23 | 119 | return 0; |
yoonghm | 0:46575249ef23 | 120 | } |
yoonghm | 0:46575249ef23 | 121 | |
yoonghm | 0:46575249ef23 | 122 | token = jsmn_alloc_token(parser, tokens, num_tokens); |
yoonghm | 0:46575249ef23 | 123 | if (token == NULL) |
yoonghm | 0:46575249ef23 | 124 | { |
yoonghm | 0:46575249ef23 | 125 | parser->pos = start; |
yoonghm | 0:46575249ef23 | 126 | return JSMN_ERR_NOMEM; |
yoonghm | 0:46575249ef23 | 127 | } |
yoonghm | 0:46575249ef23 | 128 | jsmn_fill_token(token, JSMN_PRIMITIVE, start, parser->pos); |
yoonghm | 0:46575249ef23 | 129 | |
yoonghm | 0:46575249ef23 | 130 | token->parent = parser->toksuper; |
yoonghm | 0:46575249ef23 | 131 | parser->pos--; |
yoonghm | 0:46575249ef23 | 132 | |
yoonghm | 0:46575249ef23 | 133 | return 0; |
yoonghm | 0:46575249ef23 | 134 | } |
yoonghm | 0:46575249ef23 | 135 | |
yoonghm | 0:46575249ef23 | 136 | |
yoonghm | 0:46575249ef23 | 137 | /** |
yoonghm | 0:46575249ef23 | 138 | * Fill next token with JSON string. |
yoonghm | 0:46575249ef23 | 139 | */ |
yoonghm | 0:46575249ef23 | 140 | static int |
yoonghm | 0:46575249ef23 | 141 | jsmn_parse_string |
yoonghm | 0:46575249ef23 | 142 | (jsmn_parser *parser |
yoonghm | 0:46575249ef23 | 143 | ,const char *js |
yoonghm | 0:46575249ef23 | 144 | ,size_t len |
yoonghm | 0:46575249ef23 | 145 | ,jsmntok_t *tokens |
yoonghm | 0:46575249ef23 | 146 | ,size_t num_tokens |
yoonghm | 0:46575249ef23 | 147 | ) |
yoonghm | 0:46575249ef23 | 148 | { |
yoonghm | 0:46575249ef23 | 149 | jsmntok_t *token; |
yoonghm | 0:46575249ef23 | 150 | int start = parser->pos; |
yoonghm | 0:46575249ef23 | 151 | |
yoonghm | 0:46575249ef23 | 152 | parser->pos++; |
yoonghm | 0:46575249ef23 | 153 | |
yoonghm | 0:46575249ef23 | 154 | /* Skip starting quote */ |
yoonghm | 0:46575249ef23 | 155 | for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) |
yoonghm | 0:46575249ef23 | 156 | { |
yoonghm | 0:46575249ef23 | 157 | char c = js[parser->pos]; |
yoonghm | 0:46575249ef23 | 158 | |
yoonghm | 0:46575249ef23 | 159 | /* Quote: end of string */ |
yoonghm | 0:46575249ef23 | 160 | if (c == '\"') |
yoonghm | 0:46575249ef23 | 161 | { |
yoonghm | 0:46575249ef23 | 162 | if (tokens == NULL) |
yoonghm | 0:46575249ef23 | 163 | return 0; |
yoonghm | 0:46575249ef23 | 164 | |
yoonghm | 0:46575249ef23 | 165 | token = jsmn_alloc_token(parser, tokens, num_tokens); |
yoonghm | 0:46575249ef23 | 166 | if (token == NULL) |
yoonghm | 0:46575249ef23 | 167 | { |
yoonghm | 0:46575249ef23 | 168 | parser->pos = start; |
yoonghm | 0:46575249ef23 | 169 | return JSMN_ERR_NOMEM; |
yoonghm | 0:46575249ef23 | 170 | } |
yoonghm | 0:46575249ef23 | 171 | |
yoonghm | 0:46575249ef23 | 172 | jsmn_fill_token(token, JSMN_STRING, start+1, parser->pos); |
yoonghm | 0:46575249ef23 | 173 | token->parent = parser->toksuper; |
yoonghm | 0:46575249ef23 | 174 | return 0; |
yoonghm | 0:46575249ef23 | 175 | } |
yoonghm | 0:46575249ef23 | 176 | |
yoonghm | 0:46575249ef23 | 177 | /* Backslash: Quoted symbol expected */ |
yoonghm | 1:70061827a9c8 | 178 | if (c == '\\' && parser->pos + 1 < len) |
yoonghm | 0:46575249ef23 | 179 | { |
yoonghm | 1:70061827a9c8 | 180 | int i; |
yoonghm | 0:46575249ef23 | 181 | parser->pos++; |
yoonghm | 0:46575249ef23 | 182 | switch (js[parser->pos]) |
yoonghm | 0:46575249ef23 | 183 | { |
yoonghm | 0:46575249ef23 | 184 | /* Allowed escaped symbols */ |
yoonghm | 0:46575249ef23 | 185 | case '\"': |
yoonghm | 0:46575249ef23 | 186 | case '/' : |
yoonghm | 0:46575249ef23 | 187 | case '\\': |
yoonghm | 0:46575249ef23 | 188 | case 'b' : |
yoonghm | 0:46575249ef23 | 189 | case 'f' : |
yoonghm | 0:46575249ef23 | 190 | case 'r' : |
yoonghm | 0:46575249ef23 | 191 | case 'n' : |
yoonghm | 0:46575249ef23 | 192 | case 't' : |
yoonghm | 0:46575249ef23 | 193 | break; |
yoonghm | 0:46575249ef23 | 194 | |
yoonghm | 0:46575249ef23 | 195 | /* Allows escaped symbol \uXXXX */ |
yoonghm | 0:46575249ef23 | 196 | case 'u': |
yoonghm | 0:46575249ef23 | 197 | parser->pos++; |
yoonghm | 1:70061827a9c8 | 198 | for (i = 0; |
yoonghm | 1:70061827a9c8 | 199 | i < 4 && parser->pos < len && js[parser->pos] != '\0'; |
yoonghm | 1:70061827a9c8 | 200 | i++) |
yoonghm | 0:46575249ef23 | 201 | { |
yoonghm | 0:46575249ef23 | 202 | /* If it isn't a hex character we have an ERR */ |
yoonghm | 0:46575249ef23 | 203 | if (!((js[parser->pos] >= 48 && js[parser->pos] <= 57) || /* 0-9 */ |
yoonghm | 0:46575249ef23 | 204 | (js[parser->pos] >= 65 && js[parser->pos] <= 70) || /* A-F */ |
yoonghm | 0:46575249ef23 | 205 | (js[parser->pos] >= 97 && js[parser->pos] <= 102))) { /* a-f */ |
yoonghm | 0:46575249ef23 | 206 | parser->pos = start; |
yoonghm | 1:70061827a9c8 | 207 | printf("%s:%d: parser->pos=%d\r\n", __FILE__, __LINE__, parser->pos); |
yoonghm | 0:46575249ef23 | 208 | return JSMN_ERR_INVAL; |
yoonghm | 0:46575249ef23 | 209 | } |
yoonghm | 0:46575249ef23 | 210 | parser->pos++; |
yoonghm | 0:46575249ef23 | 211 | } |
yoonghm | 0:46575249ef23 | 212 | parser->pos--; |
yoonghm | 0:46575249ef23 | 213 | break; |
yoonghm | 0:46575249ef23 | 214 | |
yoonghm | 0:46575249ef23 | 215 | /* Unexpected symbol */ |
yoonghm | 0:46575249ef23 | 216 | default: |
yoonghm | 0:46575249ef23 | 217 | parser->pos = start; |
yoonghm | 1:70061827a9c8 | 218 | printf("%s:%d: parser->pos=%d\r\n", __FILE__, __LINE__, parser->pos); |
yoonghm | 0:46575249ef23 | 219 | return JSMN_ERR_INVAL; |
yoonghm | 0:46575249ef23 | 220 | } |
yoonghm | 0:46575249ef23 | 221 | } |
yoonghm | 0:46575249ef23 | 222 | } |
yoonghm | 0:46575249ef23 | 223 | parser->pos = start; |
yoonghm | 0:46575249ef23 | 224 | return JSMN_ERR_PART; |
yoonghm | 0:46575249ef23 | 225 | } |
yoonghm | 0:46575249ef23 | 226 | |
yoonghm | 0:46575249ef23 | 227 | |
yoonghm | 0:46575249ef23 | 228 | /** |
yoonghm | 0:46575249ef23 | 229 | * Parse JSON string and fill tokens. |
yoonghm | 0:46575249ef23 | 230 | */ |
yoonghm | 0:46575249ef23 | 231 | int |
yoonghm | 0:46575249ef23 | 232 | jsmn_parse |
yoonghm | 0:46575249ef23 | 233 | (jsmn_parser *parser |
yoonghm | 0:46575249ef23 | 234 | ,const char *js |
yoonghm | 0:46575249ef23 | 235 | ,size_t len |
yoonghm | 0:46575249ef23 | 236 | ,jsmntok_t *tokens |
yoonghm | 0:46575249ef23 | 237 | ,unsigned int num_tokens |
yoonghm | 0:46575249ef23 | 238 | ) |
yoonghm | 0:46575249ef23 | 239 | { |
yoonghm | 0:46575249ef23 | 240 | int r; |
yoonghm | 0:46575249ef23 | 241 | int i; |
yoonghm | 0:46575249ef23 | 242 | jsmntok_t *token; |
yoonghm | 0:46575249ef23 | 243 | int count = 0; |
yoonghm | 0:46575249ef23 | 244 | |
yoonghm | 0:46575249ef23 | 245 | for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) |
yoonghm | 0:46575249ef23 | 246 | { |
yoonghm | 0:46575249ef23 | 247 | char c; |
yoonghm | 0:46575249ef23 | 248 | jsmntype_t type = JSMN_INVALID; |
yoonghm | 0:46575249ef23 | 249 | |
yoonghm | 0:46575249ef23 | 250 | c = js[parser->pos]; |
yoonghm | 0:46575249ef23 | 251 | switch (c) |
yoonghm | 0:46575249ef23 | 252 | { |
yoonghm | 0:46575249ef23 | 253 | case '{' : |
yoonghm | 0:46575249ef23 | 254 | case '[' : |
yoonghm | 0:46575249ef23 | 255 | count++; |
yoonghm | 0:46575249ef23 | 256 | if (tokens == NULL) |
yoonghm | 0:46575249ef23 | 257 | break; |
yoonghm | 0:46575249ef23 | 258 | |
yoonghm | 0:46575249ef23 | 259 | token = jsmn_alloc_token(parser, tokens, num_tokens); |
yoonghm | 0:46575249ef23 | 260 | |
yoonghm | 0:46575249ef23 | 261 | if (token == NULL) |
yoonghm | 0:46575249ef23 | 262 | return JSMN_ERR_NOMEM; |
yoonghm | 0:46575249ef23 | 263 | |
yoonghm | 0:46575249ef23 | 264 | if (parser->toksuper != -1) |
yoonghm | 0:46575249ef23 | 265 | { |
yoonghm | 0:46575249ef23 | 266 | tokens[parser->toksuper].size++; |
yoonghm | 0:46575249ef23 | 267 | token->parent = parser->toksuper; |
yoonghm | 0:46575249ef23 | 268 | } |
yoonghm | 0:46575249ef23 | 269 | token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY); |
yoonghm | 0:46575249ef23 | 270 | token->start = parser->pos; |
yoonghm | 0:46575249ef23 | 271 | parser->toksuper = parser->toknext - 1; |
yoonghm | 0:46575249ef23 | 272 | break; |
yoonghm | 0:46575249ef23 | 273 | |
yoonghm | 0:46575249ef23 | 274 | case '}': |
yoonghm | 0:46575249ef23 | 275 | case ']': |
yoonghm | 0:46575249ef23 | 276 | if (tokens == NULL) |
yoonghm | 0:46575249ef23 | 277 | break; |
yoonghm | 0:46575249ef23 | 278 | |
yoonghm | 0:46575249ef23 | 279 | type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY); |
yoonghm | 0:46575249ef23 | 280 | |
yoonghm | 1:70061827a9c8 | 281 | if (parser->toknext < 1) { |
yoonghm | 1:70061827a9c8 | 282 | printf("%s:%d: parser->pos=%d\r\n", __FILE__, __LINE__, parser->pos); |
yoonghm | 0:46575249ef23 | 283 | return JSMN_ERR_INVAL; |
yoonghm | 1:70061827a9c8 | 284 | } |
yoonghm | 0:46575249ef23 | 285 | |
yoonghm | 0:46575249ef23 | 286 | token = &tokens[parser->toknext - 1]; |
yoonghm | 0:46575249ef23 | 287 | for (;;) |
yoonghm | 0:46575249ef23 | 288 | { |
yoonghm | 0:46575249ef23 | 289 | if (token->start != -1 && token->end == -1) |
yoonghm | 0:46575249ef23 | 290 | { |
yoonghm | 1:70061827a9c8 | 291 | if (token->type != type) { |
yoonghm | 1:70061827a9c8 | 292 | printf("%s:%d: parser->pos=%d\r\n", __FILE__, __LINE__, parser->pos); |
yoonghm | 0:46575249ef23 | 293 | return JSMN_ERR_INVAL; |
yoonghm | 1:70061827a9c8 | 294 | } |
yoonghm | 0:46575249ef23 | 295 | |
yoonghm | 0:46575249ef23 | 296 | token->end = parser->pos + 1; |
yoonghm | 0:46575249ef23 | 297 | parser->toksuper = token->parent; |
yoonghm | 0:46575249ef23 | 298 | break; |
yoonghm | 0:46575249ef23 | 299 | } |
yoonghm | 0:46575249ef23 | 300 | |
yoonghm | 0:46575249ef23 | 301 | if (token->parent == -1) |
yoonghm | 0:46575249ef23 | 302 | break; |
yoonghm | 0:46575249ef23 | 303 | |
yoonghm | 0:46575249ef23 | 304 | token = &tokens[token->parent]; |
yoonghm | 0:46575249ef23 | 305 | } |
yoonghm | 0:46575249ef23 | 306 | break; |
yoonghm | 0:46575249ef23 | 307 | |
yoonghm | 0:46575249ef23 | 308 | case '\"': |
yoonghm | 0:46575249ef23 | 309 | r = jsmn_parse_string(parser, js, len, tokens, num_tokens); |
yoonghm | 0:46575249ef23 | 310 | if (r < 0) |
yoonghm | 0:46575249ef23 | 311 | return r; |
yoonghm | 0:46575249ef23 | 312 | |
yoonghm | 0:46575249ef23 | 313 | count++; |
yoonghm | 0:46575249ef23 | 314 | if (parser->toksuper != -1 && tokens != NULL) |
yoonghm | 0:46575249ef23 | 315 | tokens[parser->toksuper].size++; |
yoonghm | 0:46575249ef23 | 316 | break; |
yoonghm | 0:46575249ef23 | 317 | |
yoonghm | 0:46575249ef23 | 318 | case '\t': |
yoonghm | 0:46575249ef23 | 319 | case '\r': |
yoonghm | 0:46575249ef23 | 320 | case '\n': |
yoonghm | 1:70061827a9c8 | 321 | case ' ' : |
yoonghm | 1:70061827a9c8 | 322 | break; |
yoonghm | 1:70061827a9c8 | 323 | |
yoonghm | 0:46575249ef23 | 324 | case ':' : |
yoonghm | 1:70061827a9c8 | 325 | parser->toksuper = parser->toknext - 1; |
yoonghm | 1:70061827a9c8 | 326 | break; |
yoonghm | 1:70061827a9c8 | 327 | |
yoonghm | 0:46575249ef23 | 328 | case ',' : |
yoonghm | 1:70061827a9c8 | 329 | if (tokens != NULL && |
yoonghm | 1:70061827a9c8 | 330 | tokens[parser->toksuper].type != JSMN_ARRAY && |
yoonghm | 1:70061827a9c8 | 331 | tokens[parser->toksuper].type != JSMN_OBJECT) |
yoonghm | 1:70061827a9c8 | 332 | { |
yoonghm | 1:70061827a9c8 | 333 | parser->toksuper = tokens[parser->toksuper].parent; |
yoonghm | 1:70061827a9c8 | 334 | } |
yoonghm | 0:46575249ef23 | 335 | break; |
yoonghm | 0:46575249ef23 | 336 | |
yoonghm | 0:46575249ef23 | 337 | case '-' : |
yoonghm | 0:46575249ef23 | 338 | case '0' : |
yoonghm | 0:46575249ef23 | 339 | case '1' : |
yoonghm | 0:46575249ef23 | 340 | case '2' : |
yoonghm | 0:46575249ef23 | 341 | case '3' : |
yoonghm | 0:46575249ef23 | 342 | case '4' : |
yoonghm | 0:46575249ef23 | 343 | case '5' : |
yoonghm | 0:46575249ef23 | 344 | case '6' : |
yoonghm | 0:46575249ef23 | 345 | case '7' : |
yoonghm | 0:46575249ef23 | 346 | case '8' : |
yoonghm | 0:46575249ef23 | 347 | case '9' : |
yoonghm | 0:46575249ef23 | 348 | case 't' : |
yoonghm | 0:46575249ef23 | 349 | case 'f' : |
yoonghm | 0:46575249ef23 | 350 | case 'n' : |
yoonghm | 1:70061827a9c8 | 351 | /* And they must not be keys of the object */ |
yoonghm | 1:70061827a9c8 | 352 | if (tokens != NULL) |
yoonghm | 1:70061827a9c8 | 353 | { |
yoonghm | 1:70061827a9c8 | 354 | jsmntok_t *t = &tokens[parser->toksuper]; |
yoonghm | 1:70061827a9c8 | 355 | if ( t->type == JSMN_OBJECT || |
yoonghm | 1:70061827a9c8 | 356 | (t->type == JSMN_STRING && t->size != 0)) |
yoonghm | 1:70061827a9c8 | 357 | { |
yoonghm | 1:70061827a9c8 | 358 | printf("%s:%d: js[parser->pos]=%c\r\n", __FILE__, __LINE__, js[parser->pos]); |
yoonghm | 1:70061827a9c8 | 359 | return JSMN_ERR_INVAL; |
yoonghm | 1:70061827a9c8 | 360 | } |
yoonghm | 1:70061827a9c8 | 361 | } |
yoonghm | 0:46575249ef23 | 362 | r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens); |
yoonghm | 0:46575249ef23 | 363 | if (r < 0) |
yoonghm | 0:46575249ef23 | 364 | return r; |
yoonghm | 0:46575249ef23 | 365 | |
yoonghm | 0:46575249ef23 | 366 | count++; |
yoonghm | 0:46575249ef23 | 367 | |
yoonghm | 0:46575249ef23 | 368 | if (parser->toksuper != -1 && tokens != NULL) |
yoonghm | 0:46575249ef23 | 369 | tokens[parser->toksuper].size++; |
yoonghm | 0:46575249ef23 | 370 | break; |
yoonghm | 0:46575249ef23 | 371 | |
yoonghm | 0:46575249ef23 | 372 | /* Unexpected char in strict mode */ |
yoonghm | 0:46575249ef23 | 373 | default: |
yoonghm | 1:70061827a9c8 | 374 | printf("%s:%d: js[parser->pos]=%c\r\n", __FILE__, __LINE__, js[parser->pos]); |
yoonghm | 0:46575249ef23 | 375 | return JSMN_ERR_INVAL; |
yoonghm | 0:46575249ef23 | 376 | } |
yoonghm | 0:46575249ef23 | 377 | } |
yoonghm | 0:46575249ef23 | 378 | |
yoonghm | 0:46575249ef23 | 379 | for (i = parser->toknext - 1; i >= 0; i--) |
yoonghm | 0:46575249ef23 | 380 | { |
yoonghm | 0:46575249ef23 | 381 | /* Unmatched opened object or array */ |
yoonghm | 0:46575249ef23 | 382 | if (tokens[i].start != -1 && tokens[i].end == -1) |
yoonghm | 0:46575249ef23 | 383 | { |
yoonghm | 0:46575249ef23 | 384 | return JSMN_ERR_PART; |
yoonghm | 0:46575249ef23 | 385 | } |
yoonghm | 0:46575249ef23 | 386 | } |
yoonghm | 0:46575249ef23 | 387 | |
yoonghm | 0:46575249ef23 | 388 | return count; |
yoonghm | 0:46575249ef23 | 389 | } |
yoonghm | 0:46575249ef23 | 390 | |
yoonghm | 0:46575249ef23 | 391 | /** |
yoonghm | 0:46575249ef23 | 392 | * Creates a new parser based over a given buffer with an array of tokens |
yoonghm | 0:46575249ef23 | 393 | * available. |
yoonghm | 0:46575249ef23 | 394 | */ |
yoonghm | 0:46575249ef23 | 395 | void |
yoonghm | 0:46575249ef23 | 396 | jsmn_init |
yoonghm | 0:46575249ef23 | 397 | (jsmn_parser *parser) |
yoonghm | 0:46575249ef23 | 398 | { |
yoonghm | 0:46575249ef23 | 399 | parser->pos = 0; |
yoonghm | 0:46575249ef23 | 400 | parser->toknext = 0; |
yoonghm | 0:46575249ef23 | 401 | parser->toksuper = -1; |
yoonghm | 0:46575249ef23 | 402 | } |