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-rw-r--r--libnetdata/json/jsmn.c328
1 files changed, 0 insertions, 328 deletions
diff --git a/libnetdata/json/jsmn.c b/libnetdata/json/jsmn.c
deleted file mode 100644
index 2f48bd65..00000000
--- a/libnetdata/json/jsmn.c
+++ /dev/null
@@ -1,328 +0,0 @@
-#include <stdlib.h>
-
-#include "jsmn.h"
-
-/**
- * Alloc token
- *
- * Allocates a fresh unused token from the token pull.
- *
- * @param parser the controller
- * @param tokens the tokens I am working
- * @param num_tokens the number total of tokens.
- *
- * @return it returns the next token to work.
- */
-static jsmntok_t *jsmn_alloc_token(jsmn_parser *parser,
- jsmntok_t *tokens, 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;
-}
-
-/**
- * Fill Token
- *
- * Fills token type and boundaries.
- *
- * @param token the structure to set the values
- * @param type is the token type
- * @param start is the first position of the value
- * @param end is the end of the value
- */
-static void jsmn_fill_token(jsmntok_t *token, jsmntype_t type,
- int start, int end) {
- token->type = type;
- token->start = start;
- token->end = end;
- token->size = 0;
-}
-
-/**
- * Parse primitive
- *
- * Fills next available token with JSON primitive.
- *
- * @param parser is the control structure
- * @param js is the json string
- * @param type is the token type
- */
-static jsmnerr_t jsmn_parse_primitive(jsmn_parser *parser, const char *js,
- size_t len, jsmntok_t *tokens, 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;
- }
- 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;
-}
-
-/**
- * Parse string
- *
- * Fills next token with JSON string.
- *
- * @param parser is the control structure
- * @param js is the json string
- * @param len is the js length
- * @param tokens is structure with the tokens mapped.
- * @param num_tokens is the total number of tokens
- *
- * @return It returns 0 on success and another integer otherwise
- */
-static jsmnerr_t jsmn_parse_string(jsmn_parser *parser, const char *js,
- size_t len, jsmntok_t *tokens, 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++;
- 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++;
- int i = 0;
- for(; i < 4 && 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;
-}
-
-/**
- * JSMN Parse
- *
- * Parse JSON string and fill tokens.
- *
- * @param parser the auxiliary vector used to parser
- * @param js the string to parse
- * @param len the string length
- * @param tokens the place to map the tokens
- * @param num_tokens the number of tokens present in the tokens structure.
- *
- * @return It returns the number of tokens present in the string on success or a negative number otherwise
- */
-jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
- jsmntok_t *tokens, unsigned int num_tokens) {
- jsmnerr_t r;
- int i;
- jsmntok_t *token;
- int count = 0;
-
- 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) {
- tokens[parser->toksuper].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) {
- 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 ':' : case ',': case ' ':
- 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' :
-#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) {
- 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;
-}
-
-/**
- * JSMN Init
- *
- * Creates a new parser based over a given buffer with an array of tokens
- * available.
- *
- * @param parser is the structure with values to reset
- */
-void jsmn_init(jsmn_parser *parser) {
- parser->pos = 0;
- parser->toknext = 0;
- parser->toksuper = -1;
-} \ No newline at end of file
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