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Calculate and store skip-ahead counts

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This commit is contained in:
Aaron Culliney 2016-02-13 14:00:40 -08:00
parent 261ae2efae
commit 5bb65e3fc3
2 changed files with 29 additions and 2 deletions
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30
externals/jsmn/jsmn.c vendored
View File

@ -15,6 +15,7 @@ static jsmntok_t *jsmn_alloc_token(jsmn_parser *parser,
tok->start = tok->end = -1;
tok->size = 0;
#ifdef JSMN_PARENT_LINKS
tok->skip = 1;
tok->parent = -1;
#endif
return tok;
@ -147,6 +148,22 @@ static jsmnerr_t jsmn_parse_string(jsmn_parser *parser, const char *js,
return JSMN_ERROR_PART;
}
#ifdef JSMN_PARENT_LINKS
static void jsmn_percolate_skip_counts(jsmntok_t *tokens, int parent) {
jsmntok_t *token;
token = &tokens[parent];
token->skip++;
for (;;) {
if (token->parent == -1) {
break;
}
token = &tokens[token->parent];
token->skip++;
}
}
#endif
/**
* Parse JSON string and fill tokens.
*/
@ -175,6 +192,7 @@ jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
tokens[parser->toksuper].size++;
#ifdef JSMN_PARENT_LINKS
token->parent = parser->toksuper;
jsmn_percolate_skip_counts(tokens, parser->toksuper);
#endif
}
token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY);
@ -231,8 +249,12 @@ jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
r = jsmn_parse_string(parser, js, len, tokens, num_tokens);
if (r < 0) return r;
count++;
if (parser->toksuper != -1 && tokens != NULL)
if (parser->toksuper != -1 && tokens != NULL) {
tokens[parser->toksuper].size++;
#ifdef JSMN_PARENT_LINKS
jsmn_percolate_skip_counts(tokens, parser->toksuper);
#endif
}
break;
case '\t' : case '\r' : case '\n' : case ' ':
break;
@ -277,8 +299,12 @@ jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens);
if (r < 0) return r;
count++;
if (parser->toksuper != -1 && tokens != NULL)
if (parser->toksuper != -1 && tokens != NULL) {
tokens[parser->toksuper].size++;
#ifdef JSMN_PARENT_LINKS
jsmn_percolate_skip_counts(tokens, parser->toksuper);
#endif
}
break;
#ifdef JSMN_STRICT

1
externals/jsmn/jsmn.h vendored
View File

@ -46,6 +46,7 @@ typedef struct {
int end;
int size;
#ifdef JSMN_PARENT_LINKS
int skip;
int parent;
#endif
} jsmntok_t;