Ruby: ext/json/parser/parser.h Source File

00001 #ifndef _PARSER_H_
00002 #define _PARSER_H_
00003 
00004 #include "ruby.h"
00005 
00006 #if HAVE_RE_H
00007 #include "re.h"
00008 #endif
00009 
00010 #ifdef HAVE_RUBY_ENCODING_H
00011 #include "ruby/encoding.h"
00012 #define FORCE_UTF8(obj) ((obj) = rb_enc_associate(rb_str_dup(obj), rb_utf8_encoding()))
00013 #else
00014 #define FORCE_UTF8(obj)
00015 #endif
00016 #ifdef HAVE_RUBY_ST_H
00017 #include "ruby/st.h"
00018 #else
00019 #include "st.h"
00020 #endif
00021 
00022 #define option_given_p(opts, key) RTEST(rb_funcall(opts, i_key_p, 1, key))
00023 
00024 /* unicode */
00025 
00026 typedef unsigned long UTF32;  /* at least 32 bits */
00027 typedef unsigned short UTF16; /* at least 16 bits */
00028 typedef unsigned char UTF8;   /* typically 8 bits */
00029 
00030 #define UNI_REPLACEMENT_CHAR (UTF32)0x0000FFFD
00031 #define UNI_SUR_HIGH_START  (UTF32)0xD800
00032 #define UNI_SUR_HIGH_END    (UTF32)0xDBFF
00033 #define UNI_SUR_LOW_START   (UTF32)0xDC00
00034 #define UNI_SUR_LOW_END     (UTF32)0xDFFF
00035 
00036 typedef struct JSON_ParserStruct {
00037     VALUE Vsource;
00038     char *source;
00039     long len;
00040     char *memo;
00041     VALUE create_id;
00042     int max_nesting;
00043     int current_nesting;
00044     int allow_nan;
00045     int parsing_name;
00046     int symbolize_names;
00047     int quirks_mode;
00048     VALUE object_class;
00049     VALUE array_class;
00050     int create_additions;
00051     VALUE match_string;
00052 } JSON_Parser;
00053 
00054 #define GET_PARSER                          \
00055     GET_PARSER_INIT;                        \
00056     if (!json->Vsource) rb_raise(rb_eTypeError, "uninitialized instance")
00057 #define GET_PARSER_INIT                     \
00058     JSON_Parser *json;                      \
00059     Data_Get_Struct(self, JSON_Parser, json)
00060 
00061 #define MinusInfinity "-Infinity"
00062 #define EVIL 0x666
00063 
00064 static UTF32 unescape_unicode(const unsigned char *p);
00065 static int convert_UTF32_to_UTF8(char *buf, UTF32 ch);
00066 static char *JSON_parse_object(JSON_Parser *json, char *p, char *pe, VALUE *result);
00067 static char *JSON_parse_value(JSON_Parser *json, char *p, char *pe, VALUE *result);
00068 static char *JSON_parse_integer(JSON_Parser *json, char *p, char *pe, VALUE *result);
00069 static char *JSON_parse_float(JSON_Parser *json, char *p, char *pe, VALUE *result);
00070 static char *JSON_parse_array(JSON_Parser *json, char *p, char *pe, VALUE *result);
00071 static VALUE json_string_unescape(VALUE result, char *string, char *stringEnd);
00072 static char *JSON_parse_string(JSON_Parser *json, char *p, char *pe, VALUE *result);
00073 static VALUE convert_encoding(VALUE source);
00074 static VALUE cParser_initialize(int argc, VALUE *argv, VALUE self);
00075 static VALUE cParser_parse(VALUE self);
00076 static JSON_Parser *JSON_allocate();
00077 static void JSON_mark(JSON_Parser *json);
00078 static void JSON_free(JSON_Parser *json);
00079 static VALUE cJSON_parser_s_allocate(VALUE klass);
00080 static VALUE cParser_source(VALUE self);
00081 
00082 #endif
00083