/src/fluent-bit/lib/jsmn/jsmn.h

Source (jump to first uncovered line)
/*
 * MIT License
 *
 * Copyright (c) 2010 Serge Zaitsev
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
#ifndef JSMN_H
#define JSMN_H

#include <stddef.h>

#ifdef __cplusplus
extern "C" {
#endif

#ifdef JSMN_STATIC
#define JSMN_API static
#else
#define JSMN_API extern
#endif

/**
 * JSON type identifier. Basic types are:
 *  o Object
 *  o Array
 *  o String
 *  o Other primitive: number, boolean (true/false) or null
 */
typedef enum {
  JSMN_UNDEFINED = 0,
  JSMN_OBJECT = 1,
  JSMN_ARRAY = 2,
  JSMN_STRING = 3,
  JSMN_PRIMITIVE = 4
} jsmntype_t;

enum jsmnerr {
  /* Not enough tokens were provided */
  JSMN_ERROR_NOMEM = -1,
  /* Invalid character inside JSON string */
  JSMN_ERROR_INVAL = -2,
  /* The string is not a full JSON packet, more bytes expected */
  JSMN_ERROR_PART = -3
};

/**
 * JSON token description.
 * type   type (object, array, string etc.)
 * start  start position in JSON data string
 * end    end position in JSON data string
 */
typedef struct jsmntok {
  jsmntype_t type;
  int start;
  int end;
  int size;
#ifdef JSMN_PARENT_LINKS
  int parent;
#endif
} jsmntok_t;

/**
 * JSON parser. Contains an array of token blocks available. Also stores
 * the string being parsed now and current position in that string.
 */
typedef struct jsmn_parser {
  unsigned int pos;     /* offset in the JSON string */
  unsigned int toknext; /* next token to allocate */
  int toksuper;         /* superior token node, e.g. parent object or array */
} jsmn_parser;

/**
 * Create JSON parser over an array of tokens
 */
JSMN_API void jsmn_init(jsmn_parser *parser);

/**
 * Run JSON parser. It parses a JSON data string into and array of tokens, each
 * describing
 * a single JSON object.
 */
JSMN_API int jsmn_parse(jsmn_parser *parser, const char *js, const size_t len,
                        jsmntok_t *tokens, const unsigned int num_tokens);

#ifndef JSMN_HEADER
/**
 * Allocates a fresh unused token from the token pool.
 */
static jsmntok_t *jsmn_alloc_token(jsmn_parser *parser, jsmntok_t *tokens,
                                   const size_t num_tokens) {
  jsmntok_t *tok;
  if (parser->toknext >= num_tokens) {
    return NULL;
  }
  tok = &tokens[parser->toknext++];
  tok->start = tok->end = -1;
  tok->size = 0;
#ifdef JSMN_PARENT_LINKS
  tok->parent = -1;
#endif
  return tok;
}

/**
 * Fills token type and boundaries.
 */
static void jsmn_fill_token(jsmntok_t *token, const jsmntype_t type,
                            const int start, const int end) {
  token->type = type;
  token->start = start;
  token->end = end;
  token->size = 0;
}

/**
 * Fills next available token with JSON primitive.
 */
static int jsmn_parse_primitive(jsmn_parser *parser, const char *js,
                                const size_t len, jsmntok_t *tokens,
                                const size_t num_tokens) {
  jsmntok_t *token;
  int start;

  start = parser->pos;

  for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
    switch (js[parser->pos]) {
#ifndef JSMN_STRICT
    /* In strict mode primitive must be followed by "," or "}" or "]" */
    case ':':
#endif
    case '\t':
    case '\r':
    case '\n':
    case ' ':
    case ',':
    case ']':
    case '}':
      goto found;
    default:
                   /* to quiet a warning from gcc*/
      break;
    }
    if (js[parser->pos] < 32 || js[parser->pos] >= 127) {
      parser->pos = start;
      return JSMN_ERROR_INVAL;
    }
  }
#ifdef JSMN_STRICT
  /* In strict mode primitive must be followed by a comma/object/array */
  parser->pos = start;
  return JSMN_ERROR_PART;
#endif

found:
  if (tokens == NULL) {
    parser->pos--;
    return 0;
  }
  token = jsmn_alloc_token(parser, tokens, num_tokens);
  if (token == NULL) {
    parser->pos = start;
    return JSMN_ERROR_NOMEM;
  }
  jsmn_fill_token(token, JSMN_PRIMITIVE, start, parser->pos);
#ifdef JSMN_PARENT_LINKS
  token->parent = parser->toksuper;
#endif
  parser->pos--;
  return 0;
}

/**
 * Fills next token with JSON string.
 */
static int jsmn_parse_string(jsmn_parser *parser, const char *js,
                             const size_t len, jsmntok_t *tokens,
                             const size_t num_tokens) {
  jsmntok_t *token;

  int start = parser->pos;

  parser->pos++;

  /* Skip starting quote */
  for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
    char c = js[parser->pos];

    /* Quote: end of string */
    if (c == '\"') {
      if (tokens == NULL) {
        return 0;
      }
      token = jsmn_alloc_token(parser, tokens, num_tokens);
      if (token == NULL) {
        parser->pos = start;
        return JSMN_ERROR_NOMEM;
      }
      jsmn_fill_token(token, JSMN_STRING, start + 1, parser->pos);
#ifdef JSMN_PARENT_LINKS
      token->parent = parser->toksuper;
#endif
      return 0;
    }

    /* Backslash: Quoted symbol expected */
    if (c == '\\' && parser->pos + 1 < len) {
      int i;
      parser->pos++;
      switch (js[parser->pos]) {
      /* Allowed escaped symbols */
      case '\"':
      case '/':
      case '\\':
      case 'b':
      case 'f':
      case 'r':
      case 'n':
      case 't':
        break;
      /* Allows escaped symbol \uXXXX */
      case 'u':
        parser->pos++;
        for (i = 0; i < 4 && parser->pos < len && js[parser->pos] != '\0';
             i++) {
          /* If it isn't a hex character we have an error */
          if (!((js[parser->pos] >= 48 && js[parser->pos] <= 57) ||   /* 0-9 */
                (js[parser->pos] >= 65 && js[parser->pos] <= 70) ||   /* A-F */
                (js[parser->pos] >= 97 && js[parser->pos] <= 102))) { /* a-f */
            parser->pos = start;
            return JSMN_ERROR_INVAL;
          }
          parser->pos++;
        }
        parser->pos--;
        break;
      /* Unexpected symbol */
      default:
        parser->pos = start;
        return JSMN_ERROR_INVAL;
      }
    }
  }
  parser->pos = start;
  return JSMN_ERROR_PART;
}

/**
 * Parse JSON string and fill tokens.
 */
JSMN_API int jsmn_parse(jsmn_parser *parser, const char *js, const size_t len,
                        jsmntok_t *tokens, const unsigned int num_tokens) {
  int r;
  int i;
  jsmntok_t *token;
  int count = parser->toknext;

  for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
    char c;
    jsmntype_t type;

    c = js[parser->pos];
    switch (c) {
    case '{':
    case '[':
      count++;
      if (tokens == NULL) {
        break;
      }
      token = jsmn_alloc_token(parser, tokens, num_tokens);
      if (token == NULL) {
        return JSMN_ERROR_NOMEM;
      }
      if (parser->toksuper != -1) {
        jsmntok_t *t = &tokens[parser->toksuper];
#ifdef JSMN_STRICT
        /* In strict mode an object or array can't become a key */
        if (t->type == JSMN_OBJECT) {
          return JSMN_ERROR_INVAL;
        }
#endif
        t->size++;
#ifdef JSMN_PARENT_LINKS
        token->parent = parser->toksuper;
#endif
      }
      token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY);
      token->start = parser->pos;
      parser->toksuper = parser->toknext - 1;
      break;
    case '}':
    case ']':
      if (tokens == NULL) {
        break;
      }
      type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY);
#ifdef JSMN_PARENT_LINKS
      if (parser->toknext < 1) {
        return JSMN_ERROR_INVAL;
      }
      token = &tokens[parser->toknext - 1];
      for (;;) {
        if (token->start != -1 && token->end == -1) {
          if (token->type != type) {
            return JSMN_ERROR_INVAL;
          }
          token->end = parser->pos + 1;
          parser->toksuper = token->parent;
          break;
        }
        if (token->parent == -1) {
          if (token->type != type || parser->toksuper == -1) {
            return JSMN_ERROR_INVAL;
          }
          break;
        }
        token = &tokens[token->parent];
      }
#else
      for (i = parser->toknext - 1; i >= 0; i--) {
        token = &tokens[i];
        if (token->start != -1 && token->end == -1) {
          if (token->type != type) {
            return JSMN_ERROR_INVAL;
          }
          parser->toksuper = -1;
          token->end = parser->pos + 1;
          break;
        }
      }
      /* Error if unmatched closing bracket */
      if (i == -1) {
        return JSMN_ERROR_INVAL;
      }
      for (; i >= 0; i--) {
        token = &tokens[i];
        if (token->start != -1 && token->end == -1) {
          parser->toksuper = i;
          break;
        }
      }
#endif
      break;
    case '\"':
      r = jsmn_parse_string(parser, js, len, tokens, num_tokens);
      if (r < 0) {
        return r;
      }
      count++;
      if (parser->toksuper != -1 && tokens != NULL) {
        tokens[parser->toksuper].size++;
      }
      break;
    case '\t':
    case '\r':
    case '\n':
    case ' ':
      break;
    case ':':
      parser->toksuper = parser->toknext - 1;
      break;
    case ',':
      if (tokens != NULL && parser->toksuper != -1 &&
          tokens[parser->toksuper].type != JSMN_ARRAY &&
          tokens[parser->toksuper].type != JSMN_OBJECT) {
#ifdef JSMN_PARENT_LINKS
        parser->toksuper = tokens[parser->toksuper].parent;
#else
        for (i = parser->toknext - 1; i >= 0; i--) {
          if (tokens[i].type == JSMN_ARRAY || tokens[i].type == JSMN_OBJECT) {
            if (tokens[i].start != -1 && tokens[i].end == -1) {
              parser->toksuper = i;
              break;
            }
          }
        }
#endif
      }
      break;
#ifdef JSMN_STRICT
    /* In strict mode primitives are: numbers and booleans */
    case '-':
    case '0':
    case '1':
    case '2':
    case '3':
    case '4':
    case '5':
    case '6':
    case '7':
    case '8':
    case '9':
    case 't':
    case 'f':
    case 'n':
      /* And they must not be keys of the object */
      if (tokens != NULL && parser->toksuper != -1) {
        const jsmntok_t *t = &tokens[parser->toksuper];
        if (t->type == JSMN_OBJECT ||
            (t->type == JSMN_STRING && t->size != 0)) {
          return JSMN_ERROR_INVAL;
        }
      }
#else
    /* In non-strict mode every unquoted value is a primitive */
    default:
#endif
      r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens);
      if (r < 0) {
        return r;
      }
      count++;
      if (parser->toksuper != -1 && tokens != NULL) {
        tokens[parser->toksuper].size++;
      }
      break;

#ifdef JSMN_STRICT
    /* Unexpected char in strict mode */
    default:
      return JSMN_ERROR_INVAL;
#endif
    }
  }

  if (tokens != NULL) {
    for (i = parser->toknext - 1; i >= 0; i--) {
      /* Unmatched opened object or array */
      if (tokens[i].start != -1 && tokens[i].end == -1) {
        return JSMN_ERROR_PART;
      }
    }
  }

  return count;
}

/**
 * Creates a new parser based over a given buffer with an array of tokens
 * available.
 */
JSMN_API void jsmn_init(jsmn_parser *parser) {
  parser->pos = 0;
  parser->toknext = 0;
  parser->toksuper = -1;
}

#endif /* JSMN_HEADER */

#ifdef __cplusplus
}
#endif

#endif /* JSMN_H */

Coverage Report

Created: 2025-01-28 07:24

Line	Count	Source (jump to first uncovered line)
1		/*
2		* MIT License
3		*
4		* Copyright (c) 2010 Serge Zaitsev
5		*
6		* Permission is hereby granted, free of charge, to any person obtaining a copy
7		* of this software and associated documentation files (the "Software"), to deal
8		* in the Software without restriction, including without limitation the rights
9		* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10		* copies of the Software, and to permit persons to whom the Software is
11		* furnished to do so, subject to the following conditions:
12		*
13		* The above copyright notice and this permission notice shall be included in
14		* all copies or substantial portions of the Software.
15		*
16		* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17		* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18		* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19		* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20		* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21		* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22		* SOFTWARE.
23		*/
24		#ifndef JSMN_H
25		#define JSMN_H
26
27		#include <stddef.h>
28
29		#ifdef __cplusplus
30		extern "C" {
31		#endif
32
33		#ifdef JSMN_STATIC
34		#define JSMN_API static
35		#else
36		#define JSMN_API extern
37		#endif
38
39		/**
40		* JSON type identifier. Basic types are:
41		* o Object
42		* o Array
43		* o String
44		* o Other primitive: number, boolean (true/false) or null
45		*/
46		typedef enum {
47		JSMN_UNDEFINED = 0,
48		JSMN_OBJECT = 1,
49		JSMN_ARRAY = 2,
50		JSMN_STRING = 3,
51		JSMN_PRIMITIVE = 4
52		} jsmntype_t;
53
54		enum jsmnerr {
55		/* Not enough tokens were provided */
56		JSMN_ERROR_NOMEM = -1,
57		/* Invalid character inside JSON string */
58		JSMN_ERROR_INVAL = -2,
59		/* The string is not a full JSON packet, more bytes expected */
60		JSMN_ERROR_PART = -3
61		};
62
63		/**
64		* JSON token description.
65		* type type (object, array, string etc.)
66		* start start position in JSON data string
67		* end end position in JSON data string
68		*/
69		typedef struct jsmntok {
70		jsmntype_t type;
71		int start;
72		int end;
73		int size;
74		#ifdef JSMN_PARENT_LINKS
75		int parent;
76		#endif
77		} jsmntok_t;
78
79		/**
80		* JSON parser. Contains an array of token blocks available. Also stores
81		* the string being parsed now and current position in that string.
82		*/
83		typedef struct jsmn_parser {
84		unsigned int pos; /* offset in the JSON string */
85		unsigned int toknext; /* next token to allocate */
86		int toksuper; /* superior token node, e.g. parent object or array */
87		} jsmn_parser;
88
89		/**
90		* Create JSON parser over an array of tokens
91		*/
92		JSMN_API void jsmn_init(jsmn_parser *parser);
93
94		/**
95		* Run JSON parser. It parses a JSON data string into and array of tokens, each
96		* describing
97		* a single JSON object.
98		*/
99		JSMN_API int jsmn_parse(jsmn_parser parser, const char js, const size_t len,
100		jsmntok_t *tokens, const unsigned int num_tokens);
101
102		#ifndef JSMN_HEADER
103		/**
104		* Allocates a fresh unused token from the token pool.
105		*/
106		static jsmntok_t jsmn_alloc_token(jsmn_parser parser, jsmntok_t *tokens,
107	5.60k	const size_t num_tokens) {
108	5.60k	jsmntok_t *tok;
109	5.60k	if (parser->toknext >= num_tokens) {
110	0	return NULL;
111	0	}
112	5.60k	tok = &tokens[parser->toknext++];
113	5.60k	tok->start = tok->end = -1;
114	5.60k	tok->size = 0;
115	5.60k	#ifdef JSMN_PARENT_LINKS
116	5.60k	tok->parent = -1;
117	5.60k	#endif
118	5.60k	return tok;
119	5.60k	}
120
121		/**
122		* Fills token type and boundaries.
123		*/
124		static void jsmn_fill_token(jsmntok_t *token, const jsmntype_t type,
125	3.79k	const int start, const int end) {
126	3.79k	token->type = type;
127	3.79k	token->start = start;
128	3.79k	token->end = end;
129	3.79k	token->size = 0;
130	3.79k	}
131
132		/**
133		* Fills next available token with JSON primitive.
134		*/
135		static int jsmn_parse_primitive(jsmn_parser parser, const char js,
136		const size_t len, jsmntok_t *tokens,
137	3.13k	const size_t num_tokens) {
138	3.13k	jsmntok_t *token;
139	3.13k	int start;
140
141	3.13k	start = parser->pos;
142
143	18.4k	for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
144	17.9k	switch (js[parser->pos]) {
145		#ifndef JSMN_STRICT
146		/* In strict mode primitive must be followed by "," or "}" or "]" */
147		case ':':
148		#endif
149	124	case '\t':
150	282	case '\r':
151	1.03k	case '\n':
152	1.38k	case ' ':
153	2.32k	case ',':
154	2.52k	case ']':
155	2.54k	case '}':
156	2.54k	goto found;
157	15.3k	default:
158		/* to quiet a warning from gcc*/
159	15.3k	break;
160	17.9k	}
161	15.3k	if (js[parser->pos] < 32 \|\| js[parser->pos] >= 127) {
162	65	parser->pos = start;
163	65	return JSMN_ERROR_INVAL;
164	65	}
165	15.3k	}
166	519	#ifdef JSMN_STRICT
167		/* In strict mode primitive must be followed by a comma/object/array */
168	519	parser->pos = start;
169	519	return JSMN_ERROR_PART;
170	0	#endif
171
172	2.54k	found:
173	2.54k	if (tokens == NULL) {
174	0	parser->pos--;
175	0	return 0;
176	0	}
177	2.54k	token = jsmn_alloc_token(parser, tokens, num_tokens);
178	2.54k	if (token == NULL) {
179	0	parser->pos = start;
180	0	return JSMN_ERROR_NOMEM;
181	0	}
182	2.54k	jsmn_fill_token(token, JSMN_PRIMITIVE, start, parser->pos);
183	2.54k	#ifdef JSMN_PARENT_LINKS
184	2.54k	token->parent = parser->toksuper;
185	2.54k	#endif
186	2.54k	parser->pos--;
187	2.54k	return 0;
188	2.54k	}
189
190		/**
191		* Fills next token with JSON string.
192		*/
193		static int jsmn_parse_string(jsmn_parser parser, const char js,
194		const size_t len, jsmntok_t *tokens,
195	1.48k	const size_t num_tokens) {
196	1.48k	jsmntok_t *token;
197
198	1.48k	int start = parser->pos;
199
200	1.48k	parser->pos++;
201
202		/* Skip starting quote */
203	8.76k	for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
204	8.55k	char c = js[parser->pos];
205
206		/* Quote: end of string */
207	8.55k	if (c == '\"') {
208	1.25k	if (tokens == NULL) {
209	0	return 0;
210	0	}
211	1.25k	token = jsmn_alloc_token(parser, tokens, num_tokens);
212	1.25k	if (token == NULL) {
213	0	parser->pos = start;
214	0	return JSMN_ERROR_NOMEM;
215	0	}
216	1.25k	jsmn_fill_token(token, JSMN_STRING, start + 1, parser->pos);
217	1.25k	#ifdef JSMN_PARENT_LINKS
218	1.25k	token->parent = parser->toksuper;
219	1.25k	#endif
220	1.25k	return 0;
221	1.25k	}
222
223		/* Backslash: Quoted symbol expected */
224	7.30k	if (c == '\\' && parser->pos + 1 < len) {
225	994	int i;
226	994	parser->pos++;
227	994	switch (js[parser->pos]) {
228		/* Allowed escaped symbols */
229	116	case '\"':
230	210	case '/':
231	345	case '\\':
232	425	case 'b':
233	528	case 'f':
234	639	case 'r':
235	741	case 'n':
236	835	case 't':
237	835	break;
238		/* Allows escaped symbol \uXXXX */
239	155	case 'u':
240	155	parser->pos++;
241	692	for (i = 0; i < 4 && parser->pos < len && js[parser->pos] != '\0';
242	561	i++) {
243		/* If it isn't a hex character we have an error */
244	561	if (!((js[parser->pos] >= 48 && js[parser->pos] <= 57) \|\| /* 0-9 */
245	561	(js[parser->pos] >= 65 && js[parser->pos] <= 70) \|\| /* A-F */
246	561	(js[parser->pos] >= 97 && js[parser->pos] <= 102))) { /* a-f */
247	24	parser->pos = start;
248	24	return JSMN_ERROR_INVAL;
249	24	}
250	537	parser->pos++;
251	537	}
252	131	parser->pos--;
253	131	break;
254		/* Unexpected symbol */
255	4	default:
256	4	parser->pos = start;
257	4	return JSMN_ERROR_INVAL;
258	994	}
259	994	}
260	7.30k	}
261	208	parser->pos = start;
262	208	return JSMN_ERROR_PART;
263	1.48k	}
264
265		/**
266		* Parse JSON string and fill tokens.
267		*/
268		JSMN_API int jsmn_parse(jsmn_parser parser, const char js, const size_t len,
269	1.98k	jsmntok_t *tokens, const unsigned int num_tokens) {
270	1.98k	int r;
271	1.98k	int i;
272	1.98k	jsmntok_t *token;
273	1.98k	int count = parser->toknext;
274
275	12.9k	for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
276	12.5k	char c;
277	12.5k	jsmntype_t type;
278
279	12.5k	c = js[parser->pos];
280	12.5k	switch (c) {
281	641	case '{':
282	1.81k	case '[':
283	1.81k	count++;
284	1.81k	if (tokens == NULL) {
285	0	break;
286	0	}
287	1.81k	token = jsmn_alloc_token(parser, tokens, num_tokens);
288	1.81k	if (token == NULL) {
289	0	return JSMN_ERROR_NOMEM;
290	0	}
291	1.81k	if (parser->toksuper != -1) {
292	878	jsmntok_t *t = &tokens[parser->toksuper];
293	878	#ifdef JSMN_STRICT
294		/* In strict mode an object or array can't become a key */
295	878	if (t->type == JSMN_OBJECT) {
296	10	return JSMN_ERROR_INVAL;
297	10	}
298	868	#endif
299	868	t->size++;
300	868	#ifdef JSMN_PARENT_LINKS
301	868	token->parent = parser->toksuper;
302	868	#endif
303	868	}
304	1.80k	token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY);
305	1.80k	token->start = parser->pos;
306	1.80k	parser->toksuper = parser->toknext - 1;
307	1.80k	break;
308	543	case '}':
309	1.26k	case ']':
310	1.26k	if (tokens == NULL) {
311	0	break;
312	0	}
313	1.26k	type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY);
314	1.26k	#ifdef JSMN_PARENT_LINKS
315	1.26k	if (parser->toknext < 1) {
316	6	return JSMN_ERROR_INVAL;
317	6	}
318	1.25k	token = &tokens[parser->toknext - 1];
319	2.96k	for (;;) {
320	2.96k	if (token->start != -1 && token->end == -1) {
321	1.19k	if (token->type != type) {
322	3	return JSMN_ERROR_INVAL;
323	3	}
324	1.19k	token->end = parser->pos + 1;
325	1.19k	parser->toksuper = token->parent;
326	1.19k	break;
327	1.19k	}
328	1.77k	if (token->parent == -1) {
329	61	if (token->type != type \|\| parser->toksuper == -1) {
330	15	return JSMN_ERROR_INVAL;
331	15	}
332	46	break;
333	61	}
334	1.70k	token = &tokens[token->parent];
335	1.70k	}
336		#else
337		for (i = parser->toknext - 1; i >= 0; i--) {
338		token = &tokens[i];
339		if (token->start != -1 && token->end == -1) {
340		if (token->type != type) {
341		return JSMN_ERROR_INVAL;
342		}
343		parser->toksuper = -1;
344		token->end = parser->pos + 1;
345		break;
346		}
347		}
348		/* Error if unmatched closing bracket */
349		if (i == -1) {
350		return JSMN_ERROR_INVAL;
351		}
352		for (; i >= 0; i--) {
353		token = &tokens[i];
354		if (token->start != -1 && token->end == -1) {
355		parser->toksuper = i;
356		break;
357		}
358		}
359		#endif
360	1.23k	break;
361	1.48k	case '\"':
362	1.48k	r = jsmn_parse_string(parser, js, len, tokens, num_tokens);
363	1.48k	if (r < 0) {
364	236	return r;
365	236	}
366	1.25k	count++;
367	1.25k	if (parser->toksuper != -1 && tokens != NULL) {
368	895	tokens[parser->toksuper].size++;
369	895	}
370	1.25k	break;
371	296	case '\t':
372	695	case '\r':
373	1.88k	case '\n':
374	2.65k	case ' ':
375	2.65k	break;
376	264	case ':':
377	264	parser->toksuper = parser->toknext - 1;
378	264	break;
379	1.26k	case ',':
380	1.26k	if (tokens != NULL && parser->toksuper != -1 &&
381	1.26k	tokens[parser->toksuper].type != JSMN_ARRAY &&
382	1.26k	tokens[parser->toksuper].type != JSMN_OBJECT) {
383	55	#ifdef JSMN_PARENT_LINKS
384	55	parser->toksuper = tokens[parser->toksuper].parent;
385		#else
386		for (i = parser->toknext - 1; i >= 0; i--) {
387		if (tokens[i].type == JSMN_ARRAY \|\| tokens[i].type == JSMN_OBJECT) {
388		if (tokens[i].start != -1 && tokens[i].end == -1) {
389		parser->toksuper = i;
390		break;
391		}
392		}
393		}
394		#endif
395	55	}
396	1.26k	break;
397	0	#ifdef JSMN_STRICT
398		/* In strict mode primitives are: numbers and booleans */
399	749	case '-':
400	985	case '0':
401	1.42k	case '1':
402	1.68k	case '2':
403	1.82k	case '3':
404	2.02k	case '4':
405	2.15k	case '5':
406	2.31k	case '6':
407	2.43k	case '7':
408	2.55k	case '8':
409	2.75k	case '9':
410	2.94k	case 't':
411	3.02k	case 'f':
412	3.13k	case 'n':
413		/* And they must not be keys of the object */
414	3.13k	if (tokens != NULL && parser->toksuper != -1) {
415	1.23k	const jsmntok_t *t = &tokens[parser->toksuper];
416	1.23k	if (t->type == JSMN_OBJECT \|\|
417	1.23k	(t->type == JSMN_STRING && t->size != 0)) {
418	8	return JSMN_ERROR_INVAL;
419	8	}
420	1.23k	}
421		#else
422		/* In non-strict mode every unquoted value is a primitive */
423		default:
424		#endif
425	3.13k	r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens);
426	3.13k	if (r < 0) {
427	584	return r;
428	584	}
429	2.54k	count++;
430	2.54k	if (parser->toksuper != -1 && tokens != NULL) {
431	1.11k	tokens[parser->toksuper].size++;
432	1.11k	}
433	2.54k	break;
434
435	0	#ifdef JSMN_STRICT
436		/* Unexpected char in strict mode */
437	654	default:
438	654	return JSMN_ERROR_INVAL;
439	12.5k	#endif
440	12.5k	}
441	12.5k	}
442
443	464	if (tokens != NULL) {
444	2.38k	for (i = parser->toknext - 1; i >= 0; i--) {
445		/* Unmatched opened object or array */
446	2.00k	if (tokens[i].start != -1 && tokens[i].end == -1) {
447	78	return JSMN_ERROR_PART;
448	78	}
449	2.00k	}
450	464	}
451
452	386	return count;
453	464	}
454
455		/**
456		* Creates a new parser based over a given buffer with an array of tokens
457		* available.
458		*/
459	2.64k	JSMN_API void jsmn_init(jsmn_parser *parser) {
460	2.64k	parser->pos = 0;
461	2.64k	parser->toknext = 0;
462	2.64k	parser->toksuper = -1;
463	2.64k	}
464
465		#endif /* JSMN_HEADER */
466
467		#ifdef __cplusplus
468		}
469		#endif
470
471		#endif /* JSMN_H */