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-rw-r--r--src/3rdParty/json-c/json_tokener.c888
1 files changed, 888 insertions, 0 deletions
diff --git a/src/3rdParty/json-c/json_tokener.c b/src/3rdParty/json-c/json_tokener.c
new file mode 100644
index 0000000..639a0c1
--- /dev/null
+++ b/src/3rdParty/json-c/json_tokener.c
@@ -0,0 +1,888 @@
+/*
+ * $Id: json_tokener.c,v 1.20 2006/07/25 03:24:50 mclark Exp $
+ *
+ * Copyright (c) 2004, 2005 Metaparadigm Pte. Ltd.
+ * Michael Clark <michael@metaparadigm.com>
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See COPYING for details.
+ *
+ *
+ * Copyright (c) 2008-2009 Yahoo! Inc. All rights reserved.
+ * The copyrights to the contents of this file are licensed under the MIT License
+ * (http://www.opensource.org/licenses/mit-license.php)
+ */
+
+#include "config.h"
+
+#include <math.h>
+#include "math_compat.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <ctype.h>
+#include <string.h>
+#include <limits.h>
+
+#include "debug.h"
+#include "printbuf.h"
+#include "arraylist.h"
+#include "json_inttypes.h"
+#include "json_object.h"
+#include "json_tokener.h"
+#include "json_util.h"
+
+#ifdef HAVE_LOCALE_H
+#include <locale.h>
+#endif /* HAVE_LOCALE_H */
+
+#define jt_hexdigit(x) (((x) <= '9') ? (x) - '0' : ((x) & 7) + 9)
+
+#if !HAVE_STRDUP && defined(_MSC_VER)
+ /* MSC has the version as _strdup */
+# define strdup _strdup
+#elif !HAVE_STRDUP
+# error You do not have strdup on your system.
+#endif /* HAVE_STRDUP */
+
+#if !HAVE_STRNCASECMP && defined(_MSC_VER)
+ /* MSC has the version as _strnicmp */
+# define strncasecmp _strnicmp
+#elif !HAVE_STRNCASECMP
+# error You do not have strncasecmp on your system.
+#endif /* HAVE_STRNCASECMP */
+
+/* Use C99 NAN by default; if not available, nan("") should work too. */
+#ifndef NAN
+#define NAN nan("")
+#endif /* !NAN */
+
+static const char json_null_str[] = "null";
+static const int json_null_str_len = sizeof(json_null_str) - 1;
+static const char json_inf_str[] = "Infinity";
+static const int json_inf_str_len = sizeof(json_inf_str) - 1;
+static const char json_nan_str[] = "NaN";
+static const int json_nan_str_len = sizeof(json_nan_str) - 1;
+static const char json_true_str[] = "true";
+static const int json_true_str_len = sizeof(json_true_str) - 1;
+static const char json_false_str[] = "false";
+static const int json_false_str_len = sizeof(json_false_str) - 1;
+
+static const char* json_tokener_errors[] = {
+ "success",
+ "continue",
+ "nesting too deep",
+ "unexpected end of data",
+ "unexpected character",
+ "null expected",
+ "boolean expected",
+ "number expected",
+ "array value separator ',' expected",
+ "quoted object property name expected",
+ "object property name separator ':' expected",
+ "object value separator ',' expected",
+ "invalid string sequence",
+ "expected comment",
+ "buffer size overflow"
+};
+
+const char *json_tokener_error_desc(enum json_tokener_error jerr)
+{
+ int jerr_int = (int)jerr;
+ if (jerr_int < 0 || jerr_int >= (int)(sizeof(json_tokener_errors) / sizeof(json_tokener_errors[0])))
+ return "Unknown error, invalid json_tokener_error value passed to json_tokener_error_desc()";
+ return json_tokener_errors[jerr];
+}
+
+enum json_tokener_error json_tokener_get_error(json_tokener *tok)
+{
+ return tok->err;
+}
+
+/* Stuff for decoding unicode sequences */
+#define IS_HIGH_SURROGATE(uc) (((uc) & 0xFC00) == 0xD800)
+#define IS_LOW_SURROGATE(uc) (((uc) & 0xFC00) == 0xDC00)
+#define DECODE_SURROGATE_PAIR(hi,lo) ((((hi) & 0x3FF) << 10) + ((lo) & 0x3FF) + 0x10000)
+static unsigned char utf8_replacement_char[3] = { 0xEF, 0xBF, 0xBD };
+
+struct json_tokener* json_tokener_new_ex(int depth)
+{
+ struct json_tokener *tok;
+
+ tok = (struct json_tokener*)calloc(1, sizeof(struct json_tokener));
+ if (!tok) return NULL;
+ tok->stack = (struct json_tokener_srec *)calloc(depth, sizeof(struct json_tokener_srec));
+ if (!tok->stack) {
+ free(tok);
+ return NULL;
+ }
+ tok->pb = printbuf_new();
+ tok->max_depth = depth;
+ json_tokener_reset(tok);
+ return tok;
+}
+
+struct json_tokener* json_tokener_new(void)
+{
+ return json_tokener_new_ex(JSON_TOKENER_DEFAULT_DEPTH);
+}
+
+void json_tokener_free(struct json_tokener *tok)
+{
+ json_tokener_reset(tok);
+ if (tok->pb) printbuf_free(tok->pb);
+ if (tok->stack) free(tok->stack);
+ free(tok);
+}
+
+static void json_tokener_reset_level(struct json_tokener *tok, int depth)
+{
+ tok->stack[depth].state = json_tokener_state_eatws;
+ tok->stack[depth].saved_state = json_tokener_state_start;
+ json_object_put(tok->stack[depth].current);
+ tok->stack[depth].current = NULL;
+ free(tok->stack[depth].obj_field_name);
+ tok->stack[depth].obj_field_name = NULL;
+}
+
+void json_tokener_reset(struct json_tokener *tok)
+{
+ int i;
+ if (!tok)
+ return;
+
+ for(i = tok->depth; i >= 0; i--)
+ json_tokener_reset_level(tok, i);
+ tok->depth = 0;
+ tok->err = json_tokener_success;
+}
+
+struct json_object* json_tokener_parse(const char *str)
+{
+ enum json_tokener_error jerr_ignored;
+ struct json_object* obj;
+ obj = json_tokener_parse_verbose(str, &jerr_ignored);
+ return obj;
+}
+
+struct json_object* json_tokener_parse_verbose(const char *str, enum json_tokener_error *error)
+{
+ struct json_tokener* tok;
+ struct json_object* obj;
+
+ tok = json_tokener_new();
+ if (!tok)
+ return NULL;
+ obj = json_tokener_parse_ex(tok, str, -1);
+ *error = tok->err;
+ if(tok->err != json_tokener_success) {
+ if (obj != NULL)
+ json_object_put(obj);
+ obj = NULL;
+ }
+
+ json_tokener_free(tok);
+ return obj;
+}
+
+#define state tok->stack[tok->depth].state
+#define saved_state tok->stack[tok->depth].saved_state
+#define current tok->stack[tok->depth].current
+#define obj_field_name tok->stack[tok->depth].obj_field_name
+
+/* Optimization:
+ * json_tokener_parse_ex() consumed a lot of CPU in its main loop,
+ * iterating character-by character. A large performance boost is
+ * achieved by using tighter loops to locally handle units such as
+ * comments and strings. Loops that handle an entire token within
+ * their scope also gather entire strings and pass them to
+ * printbuf_memappend() in a single call, rather than calling
+ * printbuf_memappend() one char at a time.
+ *
+ * PEEK_CHAR() and ADVANCE_CHAR() macros are used for code that is
+ * common to both the main loop and the tighter loops.
+ */
+
+/* PEEK_CHAR(dest, tok) macro:
+ * Peeks at the current char and stores it in dest.
+ * Returns 1 on success, sets tok->err and returns 0 if no more chars.
+ * Implicit inputs: str, len vars
+ */
+#define PEEK_CHAR(dest, tok) \
+ (((tok)->char_offset == len) ? \
+ (((tok)->depth == 0 && state == json_tokener_state_eatws && saved_state == json_tokener_state_finish) ? \
+ (((tok)->err = json_tokener_success), 0) \
+ : \
+ (((tok)->err = json_tokener_continue), 0) \
+ ) : \
+ (((dest) = *str), 1) \
+ )
+
+/* ADVANCE_CHAR() macro:
+ * Incrementes str & tok->char_offset.
+ * For convenience of existing conditionals, returns the old value of c (0 on eof)
+ * Implicit inputs: c var
+ */
+#define ADVANCE_CHAR(str, tok) \
+ ( ++(str), ((tok)->char_offset)++, c)
+
+
+/* End optimization macro defs */
+
+
+struct json_object* json_tokener_parse_ex(struct json_tokener *tok,
+ const char *str, int len)
+{
+ struct json_object *obj = NULL;
+ char c = '\1';
+#ifdef HAVE_SETLOCALE
+ char *oldlocale=NULL, *tmplocale;
+
+ tmplocale = setlocale(LC_NUMERIC, NULL);
+ if (tmplocale) oldlocale = strdup(tmplocale);
+ setlocale(LC_NUMERIC, "C");
+#endif
+
+ tok->char_offset = 0;
+ tok->err = json_tokener_success;
+
+ /* this interface is presently not 64-bit clean due to the int len argument
+ and the internal printbuf interface that takes 32-bit int len arguments
+ so the function limits the maximum string size to INT32_MAX (2GB).
+ If the function is called with len == -1 then strlen is called to check
+ the string length is less than INT32_MAX (2GB) */
+ if ((len < -1) || (len == -1 && strlen(str) > INT32_MAX)) {
+ tok->err = json_tokener_error_size;
+ return NULL;
+ }
+
+ while (PEEK_CHAR(c, tok)) {
+
+ redo_char:
+ switch(state) {
+
+ case json_tokener_state_eatws:
+ /* Advance until we change state */
+ while (isspace((int)c)) {
+ if ((!ADVANCE_CHAR(str, tok)) || (!PEEK_CHAR(c, tok)))
+ goto out;
+ }
+ if(c == '/' && !(tok->flags & JSON_TOKENER_STRICT)) {
+ printbuf_reset(tok->pb);
+ printbuf_memappend_fast(tok->pb, &c, 1);
+ state = json_tokener_state_comment_start;
+ } else {
+ state = saved_state;
+ goto redo_char;
+ }
+ break;
+
+ case json_tokener_state_start:
+ switch(c) {
+ case '{':
+ state = json_tokener_state_eatws;
+ saved_state = json_tokener_state_object_field_start;
+ current = json_object_new_object();
+ break;
+ case '[':
+ state = json_tokener_state_eatws;
+ saved_state = json_tokener_state_array;
+ current = json_object_new_array();
+ break;
+ case 'I':
+ case 'i':
+ state = json_tokener_state_inf;
+ printbuf_reset(tok->pb);
+ tok->st_pos = 0;
+ goto redo_char;
+ case 'N':
+ case 'n':
+ state = json_tokener_state_null; // or NaN
+ printbuf_reset(tok->pb);
+ tok->st_pos = 0;
+ goto redo_char;
+ case '\'':
+ if (tok->flags & JSON_TOKENER_STRICT) {
+ /* in STRICT mode only double-quote are allowed */
+ tok->err = json_tokener_error_parse_unexpected;
+ goto out;
+ }
+ case '"':
+ state = json_tokener_state_string;
+ printbuf_reset(tok->pb);
+ tok->quote_char = c;
+ break;
+ case 'T':
+ case 't':
+ case 'F':
+ case 'f':
+ state = json_tokener_state_boolean;
+ printbuf_reset(tok->pb);
+ tok->st_pos = 0;
+ goto redo_char;
+#if defined(__GNUC__)
+ case '0' ... '9':
+#else
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+#endif
+ case '-':
+ state = json_tokener_state_number;
+ printbuf_reset(tok->pb);
+ tok->is_double = 0;
+ goto redo_char;
+ default:
+ tok->err = json_tokener_error_parse_unexpected;
+ goto out;
+ }
+ break;
+
+ case json_tokener_state_finish:
+ if(tok->depth == 0) goto out;
+ obj = json_object_get(current);
+ json_tokener_reset_level(tok, tok->depth);
+ tok->depth--;
+ goto redo_char;
+
+ case json_tokener_state_inf: /* aka starts with 'i' */
+ {
+ int size_inf;
+ int is_negative = 0;
+
+ printbuf_memappend_fast(tok->pb, &c, 1);
+ size_inf = json_min(tok->st_pos+1, json_inf_str_len);
+ char *infbuf = tok->pb->buf;
+ if (*infbuf == '-')
+ {
+ infbuf++;
+ is_negative = 1;
+ }
+ if ((!(tok->flags & JSON_TOKENER_STRICT) &&
+ strncasecmp(json_inf_str, infbuf, size_inf) == 0) ||
+ (strncmp(json_inf_str, infbuf, size_inf) == 0)
+ )
+ {
+ if (tok->st_pos == json_inf_str_len)
+ {
+ current = json_object_new_double(is_negative ? -INFINITY : INFINITY);
+ saved_state = json_tokener_state_finish;
+ state = json_tokener_state_eatws;
+ goto redo_char;
+ }
+ } else {
+ tok->err = json_tokener_error_parse_unexpected;
+ goto out;
+ }
+ tok->st_pos++;
+ }
+ break;
+ case json_tokener_state_null: /* aka starts with 'n' */
+ {
+ int size;
+ int size_nan;
+ printbuf_memappend_fast(tok->pb, &c, 1);
+ size = json_min(tok->st_pos+1, json_null_str_len);
+ size_nan = json_min(tok->st_pos+1, json_nan_str_len);
+ if((!(tok->flags & JSON_TOKENER_STRICT) &&
+ strncasecmp(json_null_str, tok->pb->buf, size) == 0)
+ || (strncmp(json_null_str, tok->pb->buf, size) == 0)
+ ) {
+ if (tok->st_pos == json_null_str_len) {
+ current = NULL;
+ saved_state = json_tokener_state_finish;
+ state = json_tokener_state_eatws;
+ goto redo_char;
+ }
+ }
+ else if ((!(tok->flags & JSON_TOKENER_STRICT) &&
+ strncasecmp(json_nan_str, tok->pb->buf, size_nan) == 0) ||
+ (strncmp(json_nan_str, tok->pb->buf, size_nan) == 0)
+ )
+ {
+ if (tok->st_pos == json_nan_str_len)
+ {
+ current = json_object_new_double(NAN);
+ saved_state = json_tokener_state_finish;
+ state = json_tokener_state_eatws;
+ goto redo_char;
+ }
+ } else {
+ tok->err = json_tokener_error_parse_null;
+ goto out;
+ }
+ tok->st_pos++;
+ }
+ break;
+
+ case json_tokener_state_comment_start:
+ if(c == '*') {
+ state = json_tokener_state_comment;
+ } else if(c == '/') {
+ state = json_tokener_state_comment_eol;
+ } else {
+ tok->err = json_tokener_error_parse_comment;
+ goto out;
+ }
+ printbuf_memappend_fast(tok->pb, &c, 1);
+ break;
+
+ case json_tokener_state_comment:
+ {
+ /* Advance until we change state */
+ const char *case_start = str;
+ while(c != '*') {
+ if (!ADVANCE_CHAR(str, tok) || !PEEK_CHAR(c, tok)) {
+ printbuf_memappend_fast(tok->pb, case_start, str-case_start);
+ goto out;
+ }
+ }
+ printbuf_memappend_fast(tok->pb, case_start, 1+str-case_start);
+ state = json_tokener_state_comment_end;
+ }
+ break;
+
+ case json_tokener_state_comment_eol:
+ {
+ /* Advance until we change state */
+ const char *case_start = str;
+ while(c != '\n') {
+ if (!ADVANCE_CHAR(str, tok) || !PEEK_CHAR(c, tok)) {
+ printbuf_memappend_fast(tok->pb, case_start, str-case_start);
+ goto out;
+ }
+ }
+ printbuf_memappend_fast(tok->pb, case_start, str-case_start);
+ MC_DEBUG("json_tokener_comment: %s\n", tok->pb->buf);
+ state = json_tokener_state_eatws;
+ }
+ break;
+
+ case json_tokener_state_comment_end:
+ printbuf_memappend_fast(tok->pb, &c, 1);
+ if(c == '/') {
+ MC_DEBUG("json_tokener_comment: %s\n", tok->pb->buf);
+ state = json_tokener_state_eatws;
+ } else {
+ state = json_tokener_state_comment;
+ }
+ break;
+
+ case json_tokener_state_string:
+ {
+ /* Advance until we change state */
+ const char *case_start = str;
+ while(1) {
+ if(c == tok->quote_char) {
+ printbuf_memappend_fast(tok->pb, case_start, str-case_start);
+ current = json_object_new_string_len(tok->pb->buf, tok->pb->bpos);
+ saved_state = json_tokener_state_finish;
+ state = json_tokener_state_eatws;
+ break;
+ } else if(c == '\\') {
+ printbuf_memappend_fast(tok->pb, case_start, str-case_start);
+ saved_state = json_tokener_state_string;
+ state = json_tokener_state_string_escape;
+ break;
+ }
+ if (!ADVANCE_CHAR(str, tok) || !PEEK_CHAR(c, tok)) {
+ printbuf_memappend_fast(tok->pb, case_start, str-case_start);
+ goto out;
+ }
+ }
+ }
+ break;
+
+ case json_tokener_state_string_escape:
+ switch(c) {
+ case '"':
+ case '\\':
+ case '/':
+ printbuf_memappend_fast(tok->pb, &c, 1);
+ state = saved_state;
+ break;
+ case 'b':
+ case 'n':
+ case 'r':
+ case 't':
+ case 'f':
+ if(c == 'b') printbuf_memappend_fast(tok->pb, "\b", 1);
+ else if(c == 'n') printbuf_memappend_fast(tok->pb, "\n", 1);
+ else if(c == 'r') printbuf_memappend_fast(tok->pb, "\r", 1);
+ else if(c == 't') printbuf_memappend_fast(tok->pb, "\t", 1);
+ else if(c == 'f') printbuf_memappend_fast(tok->pb, "\f", 1);
+ state = saved_state;
+ break;
+ case 'u':
+ tok->ucs_char = 0;
+ tok->st_pos = 0;
+ state = json_tokener_state_escape_unicode;
+ break;
+ default:
+ tok->err = json_tokener_error_parse_string;
+ goto out;
+ }
+ break;
+
+ case json_tokener_state_escape_unicode:
+ {
+ unsigned int got_hi_surrogate = 0;
+
+ /* Handle a 4-byte sequence, or two sequences if a surrogate pair */
+ while(1) {
+ if(strchr(json_hex_chars, c)) {
+ tok->ucs_char += ((unsigned int)jt_hexdigit(c) << ((3-tok->st_pos++)*4));
+ if(tok->st_pos == 4) {
+ unsigned char unescaped_utf[4];
+
+ if (got_hi_surrogate) {
+ if (IS_LOW_SURROGATE(tok->ucs_char)) {
+ /* Recalculate the ucs_char, then fall thru to process normally */
+ tok->ucs_char = DECODE_SURROGATE_PAIR(got_hi_surrogate, tok->ucs_char);
+ } else {
+ /* Hi surrogate was not followed by a low surrogate */
+ /* Replace the hi and process the rest normally */
+ printbuf_memappend_fast(tok->pb, (char*)utf8_replacement_char, 3);
+ }
+ got_hi_surrogate = 0;
+ }
+
+ if (tok->ucs_char < 0x80) {
+ unescaped_utf[0] = tok->ucs_char;
+ printbuf_memappend_fast(tok->pb, (char*)unescaped_utf, 1);
+ } else if (tok->ucs_char < 0x800) {
+ unescaped_utf[0] = 0xc0 | (tok->ucs_char >> 6);
+ unescaped_utf[1] = 0x80 | (tok->ucs_char & 0x3f);
+ printbuf_memappend_fast(tok->pb, (char*)unescaped_utf, 2);
+ } else if (IS_HIGH_SURROGATE(tok->ucs_char)) {
+ /* Got a high surrogate. Remember it and look for the
+ * the beginning of another sequence, which should be the
+ * low surrogate.
+ */
+ got_hi_surrogate = tok->ucs_char;
+ /* Not at end, and the next two chars should be "\u" */
+ if ((tok->char_offset+1 != len) &&
+ (tok->char_offset+2 != len) &&
+ (str[1] == '\\') &&
+ (str[2] == 'u'))
+ {
+ /* Advance through the 16 bit surrogate, and move on to the
+ * next sequence. The next step is to process the following
+ * characters.
+ */
+ if( !ADVANCE_CHAR(str, tok) || !ADVANCE_CHAR(str, tok) ) {
+ printbuf_memappend_fast(tok->pb, (char*)utf8_replacement_char, 3);
+ }
+ /* Advance to the first char of the next sequence and
+ * continue processing with the next sequence.
+ */
+ if (!ADVANCE_CHAR(str, tok) || !PEEK_CHAR(c, tok)) {
+ printbuf_memappend_fast(tok->pb, (char*)utf8_replacement_char, 3);
+ goto out;
+ }
+ tok->ucs_char = 0;
+ tok->st_pos = 0;
+ continue; /* other json_tokener_state_escape_unicode */
+ } else {
+ /* Got a high surrogate without another sequence following
+ * it. Put a replacement char in for the hi surrogate
+ * and pretend we finished.
+ */
+ printbuf_memappend_fast(tok->pb, (char*)utf8_replacement_char, 3);
+ }
+ } else if (IS_LOW_SURROGATE(tok->ucs_char)) {
+ /* Got a low surrogate not preceded by a high */
+ printbuf_memappend_fast(tok->pb, (char*)utf8_replacement_char, 3);
+ } else if (tok->ucs_char < 0x10000) {
+ unescaped_utf[0] = 0xe0 | (tok->ucs_char >> 12);
+ unescaped_utf[1] = 0x80 | ((tok->ucs_char >> 6) & 0x3f);
+ unescaped_utf[2] = 0x80 | (tok->ucs_char & 0x3f);
+ printbuf_memappend_fast(tok->pb, (char*)unescaped_utf, 3);
+ } else if (tok->ucs_char < 0x110000) {
+ unescaped_utf[0] = 0xf0 | ((tok->ucs_char >> 18) & 0x07);
+ unescaped_utf[1] = 0x80 | ((tok->ucs_char >> 12) & 0x3f);
+ unescaped_utf[2] = 0x80 | ((tok->ucs_char >> 6) & 0x3f);
+ unescaped_utf[3] = 0x80 | (tok->ucs_char & 0x3f);
+ printbuf_memappend_fast(tok->pb, (char*)unescaped_utf, 4);
+ } else {
+ /* Don't know what we got--insert the replacement char */
+ printbuf_memappend_fast(tok->pb, (char*)utf8_replacement_char, 3);
+ }
+ state = saved_state;
+ break;
+ }
+ } else {
+ tok->err = json_tokener_error_parse_string;
+ goto out;
+ }
+ if (!ADVANCE_CHAR(str, tok) || !PEEK_CHAR(c, tok)) {
+ if (got_hi_surrogate) /* Clean up any pending chars */
+ printbuf_memappend_fast(tok->pb, (char*)utf8_replacement_char, 3);
+ goto out;
+ }
+ }
+ }
+ break;
+
+ case json_tokener_state_boolean:
+ {
+ int size1, size2;
+ printbuf_memappend_fast(tok->pb, &c, 1);
+ size1 = json_min(tok->st_pos+1, json_true_str_len);
+ size2 = json_min(tok->st_pos+1, json_false_str_len);
+ if((!(tok->flags & JSON_TOKENER_STRICT) &&
+ strncasecmp(json_true_str, tok->pb->buf, size1) == 0)
+ || (strncmp(json_true_str, tok->pb->buf, size1) == 0)
+ ) {
+ if(tok->st_pos == json_true_str_len) {
+ current = json_object_new_boolean(1);
+ saved_state = json_tokener_state_finish;
+ state = json_tokener_state_eatws;
+ goto redo_char;
+ }
+ } else if((!(tok->flags & JSON_TOKENER_STRICT) &&
+ strncasecmp(json_false_str, tok->pb->buf, size2) == 0)
+ || (strncmp(json_false_str, tok->pb->buf, size2) == 0)) {
+ if(tok->st_pos == json_false_str_len) {
+ current = json_object_new_boolean(0);
+ saved_state = json_tokener_state_finish;
+ state = json_tokener_state_eatws;
+ goto redo_char;
+ }
+ } else {
+ tok->err = json_tokener_error_parse_boolean;
+ goto out;
+ }
+ tok->st_pos++;
+ }
+ break;
+
+ case json_tokener_state_number:
+ {
+ /* Advance until we change state */
+ const char *case_start = str;
+ int case_len=0;
+ while(c && strchr(json_number_chars, c)) {
+ ++case_len;
+ if(c == '.' || c == 'e' || c == 'E')
+ tok->is_double = 1;
+ if (!ADVANCE_CHAR(str, tok) || !PEEK_CHAR(c, tok)) {
+ printbuf_memappend_fast(tok->pb, case_start, case_len);
+ goto out;
+ }
+ }
+ if (case_len>0)
+ printbuf_memappend_fast(tok->pb, case_start, case_len);
+
+ // Check for -Infinity
+ if (tok->pb->buf[0] == '-' && case_len == 1 &&
+ (c == 'i' || c == 'I'))
+ {
+ state = json_tokener_state_inf;
+ goto redo_char;
+ }
+ }
+ {
+ int64_t num64;
+ double numd;
+ if (!tok->is_double && json_parse_int64(tok->pb->buf, &num64) == 0) {
+ if (num64 && tok->pb->buf[0]=='0' && (tok->flags & JSON_TOKENER_STRICT)) {
+ /* in strict mode, number must not start with 0 */
+ tok->err = json_tokener_error_parse_number;
+ goto out;
+ }
+ current = json_object_new_int64(num64);
+ }
+ else if(tok->is_double && json_parse_double(tok->pb->buf, &numd) == 0)
+ {
+ current = json_object_new_double_s(numd, tok->pb->buf);
+ } else {
+ tok->err = json_tokener_error_parse_number;
+ goto out;
+ }
+ saved_state = json_tokener_state_finish;
+ state = json_tokener_state_eatws;
+ goto redo_char;
+ }
+ break;
+
+ case json_tokener_state_array_after_sep:
+ case json_tokener_state_array:
+ if(c == ']') {
+ if (state == json_tokener_state_array_after_sep &&
+ (tok->flags & JSON_TOKENER_STRICT))
+ {
+ tok->err = json_tokener_error_parse_unexpected;
+ goto out;
+ }
+ saved_state = json_tokener_state_finish;
+ state = json_tokener_state_eatws;
+ } else {
+ if(tok->depth >= tok->max_depth-1) {
+ tok->err = json_tokener_error_depth;
+ goto out;
+ }
+ state = json_tokener_state_array_add;
+ tok->depth++;
+ json_tokener_reset_level(tok, tok->depth);
+ goto redo_char;
+ }
+ break;
+
+ case json_tokener_state_array_add:
+ json_object_array_add(current, obj);
+ saved_state = json_tokener_state_array_sep;
+ state = json_tokener_state_eatws;
+ goto redo_char;
+
+ case json_tokener_state_array_sep:
+ if(c == ']') {
+ saved_state = json_tokener_state_finish;
+ state = json_tokener_state_eatws;
+ } else if(c == ',') {
+ saved_state = json_tokener_state_array_after_sep;
+ state = json_tokener_state_eatws;
+ } else {
+ tok->err = json_tokener_error_parse_array;
+ goto out;
+ }
+ break;
+
+ case json_tokener_state_object_field_start:
+ case json_tokener_state_object_field_start_after_sep:
+ if(c == '}') {
+ if (state == json_tokener_state_object_field_start_after_sep &&
+ (tok->flags & JSON_TOKENER_STRICT))
+ {
+ tok->err = json_tokener_error_parse_unexpected;
+ goto out;
+ }
+ saved_state = json_tokener_state_finish;
+ state = json_tokener_state_eatws;
+ } else if (c == '"' || c == '\'') {
+ tok->quote_char = c;
+ printbuf_reset(tok->pb);
+ state = json_tokener_state_object_field;
+ } else {
+ tok->err = json_tokener_error_parse_object_key_name;
+ goto out;
+ }
+ break;
+
+ case json_tokener_state_object_field:
+ {
+ /* Advance until we change state */
+ const char *case_start = str;
+ while(1) {
+ if(c == tok->quote_char) {
+ printbuf_memappend_fast(tok->pb, case_start, str-case_start);
+ obj_field_name = strdup(tok->pb->buf);
+ saved_state = json_tokener_state_object_field_end;
+ state = json_tokener_state_eatws;
+ break;
+ } else if(c == '\\') {
+ printbuf_memappend_fast(tok->pb, case_start, str-case_start);
+ saved_state = json_tokener_state_object_field;
+ state = json_tokener_state_string_escape;
+ break;
+ }
+ if (!ADVANCE_CHAR(str, tok) || !PEEK_CHAR(c, tok)) {
+ printbuf_memappend_fast(tok->pb, case_start, str-case_start);
+ goto out;
+ }
+ }
+ }
+ break;
+
+ case json_tokener_state_object_field_end:
+ if(c == ':') {
+ saved_state = json_tokener_state_object_value;
+ state = json_tokener_state_eatws;
+ } else {
+ tok->err = json_tokener_error_parse_object_key_sep;
+ goto out;
+ }
+ break;
+
+ case json_tokener_state_object_value:
+ if(tok->depth >= tok->max_depth-1) {
+ tok->err = json_tokener_error_depth;
+ goto out;
+ }
+ state = json_tokener_state_object_value_add;
+ tok->depth++;
+ json_tokener_reset_level(tok, tok->depth);
+ goto redo_char;
+
+ case json_tokener_state_object_value_add:
+ json_object_object_add(current, obj_field_name, obj);
+ free(obj_field_name);
+ obj_field_name = NULL;
+ saved_state = json_tokener_state_object_sep;
+ state = json_tokener_state_eatws;
+ goto redo_char;
+
+ case json_tokener_state_object_sep:
+ if(c == '}') {
+ saved_state = json_tokener_state_finish;
+ state = json_tokener_state_eatws;
+ } else if(c == ',') {
+ saved_state = json_tokener_state_object_field_start_after_sep;
+ state = json_tokener_state_eatws;
+ } else {
+ tok->err = json_tokener_error_parse_object_value_sep;
+ goto out;
+ }
+ break;
+
+ }
+ if (!ADVANCE_CHAR(str, tok))
+ goto out;
+ } /* while(POP_CHAR) */
+
+ out:
+ if (c &&
+ (state == json_tokener_state_finish) &&
+ (tok->depth == 0) &&
+ (tok->flags & JSON_TOKENER_STRICT)) {
+ /* unexpected char after JSON data */
+ tok->err = json_tokener_error_parse_unexpected;
+ }
+ if (!c) { /* We hit an eof char (0) */
+ if(state != json_tokener_state_finish &&
+ saved_state != json_tokener_state_finish)
+ tok->err = json_tokener_error_parse_eof;
+ }
+
+#ifdef HAVE_SETLOCALE
+ setlocale(LC_NUMERIC, oldlocale);
+ if (oldlocale) free(oldlocale);
+#endif
+
+ if (tok->err == json_tokener_success)
+ {
+ json_object *ret = json_object_get(current);
+ int ii;
+
+ /* Partially reset, so we parse additional objects on subsequent calls. */
+ for(ii = tok->depth; ii >= 0; ii--)
+ json_tokener_reset_level(tok, ii);
+ return ret;
+ }
+
+ MC_DEBUG("json_tokener_parse_ex: error %s at offset %d\n",
+ json_tokener_errors[tok->err], tok->char_offset);
+ return NULL;
+}
+
+void json_tokener_set_flags(struct json_tokener *tok, int flags)
+{
+ tok->flags = flags;
+}
generated by cgit v1.2.3-54-g00ecf (git 2.44.0) at 2024-04-16 07:05:38 +0000