Ruby 1.9.2p136(2010-12-25revision30365)

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# ext/json/generator/generator.h

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    00001 #ifndef _GENERATOR_H_
    00002 #define _GENERATOR_H_
    00003
    00004 #include <string.h>
    00005 #include <assert.h>
    00006 #include <math.h>
    00007
    00008 #include "ruby.h"
    00009
    00010 #if HAVE_RUBY_RE_H
    00011 #include "ruby/re.h"
    00012 #endif
    00013
    00014 #if HAVE_RE_H
    00015 #include "re.h"
    00016 #endif
    00017
    00018 #ifdef HAVE_RUBY_ENCODING_H
    00019 #include "ruby/encoding.h"
    00020 #define FORCE_UTF8(obj) rb_enc_associate((obj), rb_utf8_encoding())
    00021 #else
    00022 #define FORCE_UTF8(obj)
    00023 #endif
    00024
    00025 #define option_given_p(opts, key) RTEST(rb_funcall(opts, i_key_p, 1, key))
    00026
    00027 #ifndef RHASH_SIZE
    00028 #define RHASH_SIZE(hsh) (RHASH(hsh)->tbl->num_entries)
    00029 #endif
    00030
    00031 #ifndef RFLOAT_VALUE
    00032 #define RFLOAT_VALUE(val) (RFLOAT(val)->value)
    00033 #endif
    00034
    00035 #ifndef RARRAY_PTR
    00036 #define RARRAY_PTR(ARRAY) RARRAY(ARRAY)->ptr
    00037 #endif
    00038 #ifndef RARRAY_LEN
    00039 #define RARRAY_LEN(ARRAY) RARRAY(ARRAY)->len
    00040 #endif
    00041 #ifndef RSTRING_PTR
    00042 #define RSTRING_PTR(string) RSTRING(string)->ptr
    00043 #endif
    00044 #ifndef RSTRING_LEN
    00045 #define RSTRING_LEN(string) RSTRING(string)->len
    00046 #endif
    00047
    00048 #define RSTRING_PAIR(string) RSTRING_PTR(string), RSTRING_LEN(string)
    00049
    00050 /* fbuffer implementation */
    00051
    00052 typedef struct FBufferStruct {
    00053     unsigned int initial_length;
    00054     char *ptr;
    00055     unsigned int len;
    00056     unsigned int capa;
    00057 } FBuffer;
    00058
    00059 #define FBUFFER_INITIAL_LENGTH 4096
    00060
    00061 #define FBUFFER_PTR(fb) (fb->ptr)
    00062 #define FBUFFER_LEN(fb) (fb->len)
    00063 #define FBUFFER_CAPA(fb) (fb->capa)
    00064 #define FBUFFER_PAIR(fb) FBUFFER_PTR(fb), FBUFFER_LEN(fb)
    00065
    00066 static char *fstrndup(const char *ptr, int len);
    00067 static FBuffer *fbuffer_alloc();
    00068 static FBuffer *fbuffer_alloc_with_length(unsigned initial_length);
    00069 static void fbuffer_free(FBuffer *fb);
    00070 static void fbuffer_free_only_buffer(FBuffer *fb);
    00071 static void fbuffer_clear(FBuffer *fb);
    00072 static void fbuffer_append(FBuffer *fb, const char *newstr, unsigned int len);
    00073 static void fbuffer_append_long(FBuffer *fb, long number);
    00074 static void fbuffer_append_char(FBuffer *fb, char newchr);
    00075 static FBuffer *fbuffer_dup(FBuffer *fb);
    00076
    00077 /* unicode defintions */
    00078
    00079 #define UNI_STRICT_CONVERSION 1
    00080
    00081 typedef unsigned long   UTF32;  /* at least 32 bits */
    00082 typedef unsigned short  UTF16;  /* at least 16 bits */
    00083 typedef unsigned char   UTF8;   /* typically 8 bits */
    00084
    00085 #define UNI_REPLACEMENT_CHAR (UTF32)0x0000FFFD
    00086 #define UNI_MAX_BMP (UTF32)0x0000FFFF
    00087 #define UNI_MAX_UTF16 (UTF32)0x0010FFFF
    00088 #define UNI_MAX_UTF32 (UTF32)0x7FFFFFFF
    00089 #define UNI_MAX_LEGAL_UTF32 (UTF32)0x0010FFFF
    00090
    00091 #define UNI_SUR_HIGH_START  (UTF32)0xD800
    00092 #define UNI_SUR_HIGH_END    (UTF32)0xDBFF
    00093 #define UNI_SUR_LOW_START   (UTF32)0xDC00
    00094 #define UNI_SUR_LOW_END     (UTF32)0xDFFF
    00095
    00096 static const int halfShift  = 10; /* used for shifting by 10 bits */
    00097
    00098 static const UTF32 halfBase = 0x0010000UL;
    00099 static const UTF32 halfMask = 0x3FFUL;
    00100
    00101 static unsigned char isLegalUTF8(const UTF8 *source, int length);
    00102 static void unicode_escape(char *buf, UTF16 character);
    00103 static void unicode_escape_to_buffer(FBuffer *buffer, char buf[6], UTF16 character);
    00104 static void convert_UTF8_to_JSON_ASCII(FBuffer *buffer, VALUE string);
    00105 static void convert_UTF8_to_JSON(FBuffer *buffer, VALUE string);
    00106
    00107 /* ruby api and some helpers */
    00108
    00109 typedef struct JSON_Generator_StateStruct {
    00110     char *indent;
    00111     long indent_len;
    00112     char *space;
    00113     long space_len;
    00114     char *space_before;
    00115     long space_before_len;
    00116     char *object_nl;
    00117     long object_nl_len;
    00118     char *array_nl;
    00119     long array_nl_len;
    00120     FBuffer *array_delim;
    00121     FBuffer *object_delim;
    00122     FBuffer *object_delim2;
    00123     long max_nesting;
    00124     char allow_nan;
    00125     char ascii_only;
    00126 } JSON_Generator_State;
    00127
    00128 #define GET_STATE(self)                       \
    00129     JSON_Generator_State *state;              \
    00130     Data_Get_Struct(self, JSON_Generator_State, state)
    00131
    00132 static VALUE mHash_to_json(int argc, VALUE *argv, VALUE self);
    00133 static VALUE mArray_to_json(int argc, VALUE *argv, VALUE self);
    00134 static VALUE mInteger_to_json(int argc, VALUE *argv, VALUE self);
    00135 static VALUE mFloat_to_json(int argc, VALUE *argv, VALUE self);
    00136 static VALUE mString_included_s(VALUE self, VALUE modul);
    00137 static VALUE mString_to_json(int argc, VALUE *argv, VALUE self);
    00138 static VALUE mString_to_json_raw_object(VALUE self);
    00139 static VALUE mString_to_json_raw(int argc, VALUE *argv, VALUE self);
    00140 static VALUE mString_Extend_json_create(VALUE self, VALUE o);
    00141 static VALUE mTrueClass_to_json(int argc, VALUE *argv, VALUE self);
    00142 static VALUE mFalseClass_to_json(int argc, VALUE *argv, VALUE self);
    00143 static VALUE mNilClass_to_json(int argc, VALUE *argv, VALUE self);
    00144 static VALUE mObject_to_json(int argc, VALUE *argv, VALUE self);
    00145 static void State_free(JSON_Generator_State *state);
    00146 static JSON_Generator_State *State_allocate();
    00147 static VALUE cState_s_allocate(VALUE klass);
    00148 static VALUE cState_configure(VALUE self, VALUE opts);
    00149 static VALUE cState_to_h(VALUE self);
    00150 static void generate_json(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj, long depth);
    00151 static VALUE cState_partial_generate(VALUE self, VALUE obj, VALUE depth);
    00152 static VALUE cState_generate(VALUE self, VALUE obj);
    00153 static VALUE cState_initialize(int argc, VALUE *argv, VALUE self);
    00154 static VALUE cState_from_state_s(VALUE self, VALUE opts);
    00155 static VALUE cState_indent(VALUE self);
    00156 static VALUE cState_indent_set(VALUE self, VALUE indent);
    00157 static VALUE cState_space(VALUE self);
    00158 static VALUE cState_space_set(VALUE self, VALUE space);
    00159 static VALUE cState_space_before(VALUE self);
    00160 static VALUE cState_space_before_set(VALUE self, VALUE space_before);
    00161 static VALUE cState_object_nl(VALUE self);
    00162 static VALUE cState_object_nl_set(VALUE self, VALUE object_nl);
    00163 static VALUE cState_array_nl(VALUE self);
    00164 static VALUE cState_array_nl_set(VALUE self, VALUE array_nl);
    00165 static VALUE cState_max_nesting(VALUE self);
    00166 static VALUE cState_max_nesting_set(VALUE self, VALUE depth);
    00167 static VALUE cState_allow_nan_p(VALUE self);
    00168 static VALUE cState_ascii_only_p(VALUE self);
    00169
    00170 #endif
    00171