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Diffstat (limited to 'ext/json/generator/generator.c')
| -rw-r--r-- | ext/json/generator/generator.c | 1463 |
1 files changed, 1463 insertions, 0 deletions
diff --git a/ext/json/generator/generator.c b/ext/json/generator/generator.c new file mode 100644 index 0000000000..baf5360bb1 --- /dev/null +++ b/ext/json/generator/generator.c @@ -0,0 +1,1463 @@ +#include "../fbuffer/fbuffer.h" +#include "generator.h" + +#ifdef HAVE_RUBY_ENCODING_H +static VALUE CEncoding_UTF_8; +static ID i_encoding, i_encode; +#endif + +static VALUE mJSON, mExt, mGenerator, cState, mGeneratorMethods, mObject, + mHash, mArray, mFixnum, mBignum, mFloat, mString, mString_Extend, + mTrueClass, mFalseClass, mNilClass, eGeneratorError, + eNestingError, CRegexp_MULTILINE, CJSON_SAFE_STATE_PROTOTYPE, + i_SAFE_STATE_PROTOTYPE; + +static ID i_to_s, i_to_json, i_new, i_indent, i_space, i_space_before, + i_object_nl, i_array_nl, i_max_nesting, i_allow_nan, i_ascii_only, + i_quirks_mode, i_pack, i_unpack, i_create_id, i_extend, i_key_p, + i_aref, i_send, i_respond_to_p, i_match, i_keys, i_depth, + i_buffer_initial_length, i_dup; + +/* + * Copyright 2001-2004 Unicode, Inc. + * + * Disclaimer + * + * This source code is provided as is by Unicode, Inc. No claims are + * made as to fitness for any particular purpose. No warranties of any + * kind are expressed or implied. The recipient agrees to determine + * applicability of information provided. If this file has been + * purchased on magnetic or optical media from Unicode, Inc., the + * sole remedy for any claim will be exchange of defective media + * within 90 days of receipt. + * + * Limitations on Rights to Redistribute This Code + * + * Unicode, Inc. hereby grants the right to freely use the information + * supplied in this file in the creation of products supporting the + * Unicode Standard, and to make copies of this file in any form + * for internal or external distribution as long as this notice + * remains attached. + */ + +/* + * Index into the table below with the first byte of a UTF-8 sequence to + * get the number of trailing bytes that are supposed to follow it. + * Note that *legal* UTF-8 values can't have 4 or 5-bytes. The table is + * left as-is for anyone who may want to do such conversion, which was + * allowed in earlier algorithms. + */ +static const char trailingBytesForUTF8[256] = { + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, + 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5 +}; + +/* + * Magic values subtracted from a buffer value during UTF8 conversion. + * This table contains as many values as there might be trailing bytes + * in a UTF-8 sequence. + */ +static const UTF32 offsetsFromUTF8[6] = { 0x00000000UL, 0x00003080UL, 0x000E2080UL, + 0x03C82080UL, 0xFA082080UL, 0x82082080UL }; + +/* + * Utility routine to tell whether a sequence of bytes is legal UTF-8. + * This must be called with the length pre-determined by the first byte. + * If not calling this from ConvertUTF8to*, then the length can be set by: + * length = trailingBytesForUTF8[*source]+1; + * and the sequence is illegal right away if there aren't that many bytes + * available. + * If presented with a length > 4, this returns 0. The Unicode + * definition of UTF-8 goes up to 4-byte sequences. + */ +static unsigned char isLegalUTF8(const UTF8 *source, unsigned long length) +{ + UTF8 a; + const UTF8 *srcptr = source+length; + switch (length) { + default: return 0; + /* Everything else falls through when "1"... */ + case 4: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return 0; + case 3: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return 0; + case 2: if ((a = (*--srcptr)) > 0xBF) return 0; + + switch (*source) { + /* no fall-through in this inner switch */ + case 0xE0: if (a < 0xA0) return 0; break; + case 0xED: if (a > 0x9F) return 0; break; + case 0xF0: if (a < 0x90) return 0; break; + case 0xF4: if (a > 0x8F) return 0; break; + default: if (a < 0x80) return 0; + } + + case 1: if (*source >= 0x80 && *source < 0xC2) return 0; + } + if (*source > 0xF4) return 0; + return 1; +} + +/* Escapes the UTF16 character and stores the result in the buffer buf. */ +static void unicode_escape(char *buf, UTF16 character) +{ + const char *digits = "0123456789abcdef"; + + buf[2] = digits[character >> 12]; + buf[3] = digits[(character >> 8) & 0xf]; + buf[4] = digits[(character >> 4) & 0xf]; + buf[5] = digits[character & 0xf]; +} + +/* Escapes the UTF16 character and stores the result in the buffer buf, then + * the buffer buf is appended to the FBuffer buffer. */ +static void unicode_escape_to_buffer(FBuffer *buffer, char buf[6], UTF16 + character) +{ + unicode_escape(buf, character); + fbuffer_append(buffer, buf, 6); +} + +/* Converts string to a JSON string in FBuffer buffer, where all but the ASCII + * and control characters are JSON escaped. */ +static void convert_UTF8_to_JSON_ASCII(FBuffer *buffer, VALUE string) +{ + const UTF8 *source = (UTF8 *) RSTRING_PTR(string); + const UTF8 *sourceEnd = source + RSTRING_LEN(string); + char buf[6] = { '\\', 'u' }; + + while (source < sourceEnd) { + UTF32 ch = 0; + unsigned short extraBytesToRead = trailingBytesForUTF8[*source]; + if (source + extraBytesToRead >= sourceEnd) { + rb_raise(rb_path2class("JSON::GeneratorError"), + "partial character in source, but hit end"); + } + if (!isLegalUTF8(source, extraBytesToRead+1)) { + rb_raise(rb_path2class("JSON::GeneratorError"), + "source sequence is illegal/malformed utf-8"); + } + /* + * The cases all fall through. See "Note A" below. + */ + switch (extraBytesToRead) { + case 5: ch += *source++; ch <<= 6; /* remember, illegal UTF-8 */ + case 4: ch += *source++; ch <<= 6; /* remember, illegal UTF-8 */ + case 3: ch += *source++; ch <<= 6; + case 2: ch += *source++; ch <<= 6; + case 1: ch += *source++; ch <<= 6; + case 0: ch += *source++; + } + ch -= offsetsFromUTF8[extraBytesToRead]; + + if (ch <= UNI_MAX_BMP) { /* Target is a character <= 0xFFFF */ + /* UTF-16 surrogate values are illegal in UTF-32 */ + if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) { +#if UNI_STRICT_CONVERSION + source -= (extraBytesToRead+1); /* return to the illegal value itself */ + rb_raise(rb_path2class("JSON::GeneratorError"), + "source sequence is illegal/malformed utf-8"); +#else + unicode_escape_to_buffer(buffer, buf, UNI_REPLACEMENT_CHAR); +#endif + } else { + /* normal case */ + if (ch >= 0x20 && ch <= 0x7f) { + switch (ch) { + case '\\': + fbuffer_append(buffer, "\\\\", 2); + break; + case '"': + fbuffer_append(buffer, "\\\"", 2); + break; + default: + fbuffer_append_char(buffer, (char)ch); + break; + } + } else { + switch (ch) { + case '\n': + fbuffer_append(buffer, "\\n", 2); + break; + case '\r': + fbuffer_append(buffer, "\\r", 2); + break; + case '\t': + fbuffer_append(buffer, "\\t", 2); + break; + case '\f': + fbuffer_append(buffer, "\\f", 2); + break; + case '\b': + fbuffer_append(buffer, "\\b", 2); + break; + default: + unicode_escape_to_buffer(buffer, buf, (UTF16) ch); + break; + } + } + } + } else if (ch > UNI_MAX_UTF16) { +#if UNI_STRICT_CONVERSION + source -= (extraBytesToRead+1); /* return to the start */ + rb_raise(rb_path2class("JSON::GeneratorError"), + "source sequence is illegal/malformed utf8"); +#else + unicode_escape_to_buffer(buffer, buf, UNI_REPLACEMENT_CHAR); +#endif + } else { + /* target is a character in range 0xFFFF - 0x10FFFF. */ + ch -= halfBase; + unicode_escape_to_buffer(buffer, buf, (UTF16)((ch >> halfShift) + UNI_SUR_HIGH_START)); + unicode_escape_to_buffer(buffer, buf, (UTF16)((ch & halfMask) + UNI_SUR_LOW_START)); + } + } +} + +/* Converts string to a JSON string in FBuffer buffer, where only the + * characters required by the JSON standard are JSON escaped. The remaining + * characters (should be UTF8) are just passed through and appended to the + * result. */ +static void convert_UTF8_to_JSON(FBuffer *buffer, VALUE string) +{ + const char *ptr = RSTRING_PTR(string), *p; + unsigned long len = RSTRING_LEN(string), start = 0, end = 0; + const char *escape = NULL; + int escape_len; + unsigned char c; + char buf[6] = { '\\', 'u' }; + + for (start = 0, end = 0; end < len;) { + p = ptr + end; + c = (unsigned char) *p; + if (c < 0x20) { + switch (c) { + case '\n': + escape = "\\n"; + escape_len = 2; + break; + case '\r': + escape = "\\r"; + escape_len = 2; + break; + case '\t': + escape = "\\t"; + escape_len = 2; + break; + case '\f': + escape = "\\f"; + escape_len = 2; + break; + case '\b': + escape = "\\b"; + escape_len = 2; + break; + default: + unicode_escape(buf, (UTF16) *p); + escape = buf; + escape_len = 6; + break; + } + } else { + switch (c) { + case '\\': + escape = "\\\\"; + escape_len = 2; + break; + case '"': + escape = "\\\""; + escape_len = 2; + break; + default: + { + unsigned short clen = trailingBytesForUTF8[c] + 1; + if (end + clen > len) { + rb_raise(rb_path2class("JSON::GeneratorError"), + "partial character in source, but hit end"); + } + if (!isLegalUTF8((UTF8 *) p, clen)) { + rb_raise(rb_path2class("JSON::GeneratorError"), + "source sequence is illegal/malformed utf-8"); + } + end += clen; + } + continue; + break; + } + } + fbuffer_append(buffer, ptr + start, end - start); + fbuffer_append(buffer, escape, escape_len); + start = ++end; + escape = NULL; + } + fbuffer_append(buffer, ptr + start, end - start); +} + +static char *fstrndup(const char *ptr, unsigned long len) { + char *result; + if (len <= 0) return NULL; + result = ALLOC_N(char, len); + memccpy(result, ptr, 0, len); + return result; +} + +/* + * Document-module: JSON::Ext::Generator + * + * This is the JSON generator implemented as a C extension. It can be + * configured to be used by setting + * + * JSON.generator = JSON::Ext::Generator + * + * with the method generator= in JSON. + * + */ + +/* + * call-seq: to_json(state = nil) + * + * Returns a JSON string containing a JSON object, that is generated from + * this Hash instance. + * _state_ is a JSON::State object, that can also be used to configure the + * produced JSON string output further. + */ +static VALUE mHash_to_json(int argc, VALUE *argv, VALUE self) +{ + GENERATE_JSON(object); +} + +/* + * call-seq: to_json(state = nil) + * + * Returns a JSON string containing a JSON array, that is generated from + * this Array instance. + * _state_ is a JSON::State object, that can also be used to configure the + * produced JSON string output further. + */ +static VALUE mArray_to_json(int argc, VALUE *argv, VALUE self) { + GENERATE_JSON(array); +} + +/* + * call-seq: to_json(*) + * + * Returns a JSON string representation for this Integer number. + */ +static VALUE mFixnum_to_json(int argc, VALUE *argv, VALUE self) +{ + GENERATE_JSON(fixnum); +} + +/* + * call-seq: to_json(*) + * + * Returns a JSON string representation for this Integer number. + */ +static VALUE mBignum_to_json(int argc, VALUE *argv, VALUE self) +{ + GENERATE_JSON(bignum); +} + +/* + * call-seq: to_json(*) + * + * Returns a JSON string representation for this Float number. + */ +static VALUE mFloat_to_json(int argc, VALUE *argv, VALUE self) +{ + GENERATE_JSON(float); +} + +/* + * call-seq: String.included(modul) + * + * Extends _modul_ with the String::Extend module. + */ +static VALUE mString_included_s(VALUE self, VALUE modul) { + VALUE result = rb_funcall(modul, i_extend, 1, mString_Extend); + return result; +} + +/* + * call-seq: to_json(*) + * + * This string should be encoded with UTF-8 A call to this method + * returns a JSON string encoded with UTF16 big endian characters as + * \u????. + */ +static VALUE mString_to_json(int argc, VALUE *argv, VALUE self) +{ + GENERATE_JSON(string); +} + +/* + * call-seq: to_json_raw_object() + * + * This method creates a raw object hash, that can be nested into + * other data structures and will be generated as a raw string. This + * method should be used, if you want to convert raw strings to JSON + * instead of UTF-8 strings, e. g. binary data. + */ +static VALUE mString_to_json_raw_object(VALUE self) +{ + VALUE ary; + VALUE result = rb_hash_new(); + rb_hash_aset(result, rb_funcall(mJSON, i_create_id, 0), rb_class_name(rb_obj_class(self))); + ary = rb_funcall(self, i_unpack, 1, rb_str_new2("C*")); + rb_hash_aset(result, rb_str_new2("raw"), ary); + return result; +} + +/* + * call-seq: to_json_raw(*args) + * + * This method creates a JSON text from the result of a call to + * to_json_raw_object of this String. + */ +static VALUE mString_to_json_raw(int argc, VALUE *argv, VALUE self) +{ + VALUE obj = mString_to_json_raw_object(self); + Check_Type(obj, T_HASH); + return mHash_to_json(argc, argv, obj); +} + +/* + * call-seq: json_create(o) + * + * Raw Strings are JSON Objects (the raw bytes are stored in an array for the + * key "raw"). The Ruby String can be created by this module method. + */ +static VALUE mString_Extend_json_create(VALUE self, VALUE o) +{ + VALUE ary; + Check_Type(o, T_HASH); + ary = rb_hash_aref(o, rb_str_new2("raw")); + return rb_funcall(ary, i_pack, 1, rb_str_new2("C*")); +} + +/* + * call-seq: to_json(*) + * + * Returns a JSON string for true: 'true'. + */ +static VALUE mTrueClass_to_json(int argc, VALUE *argv, VALUE self) +{ + GENERATE_JSON(true); +} + +/* + * call-seq: to_json(*) + * + * Returns a JSON string for false: 'false'. + */ +static VALUE mFalseClass_to_json(int argc, VALUE *argv, VALUE self) +{ + GENERATE_JSON(false); +} + +/* + * call-seq: to_json(*) + * + * Returns a JSON string for nil: 'null'. + */ +static VALUE mNilClass_to_json(int argc, VALUE *argv, VALUE self) +{ + GENERATE_JSON(null); +} + +/* + * call-seq: to_json(*) + * + * Converts this object to a string (calling #to_s), converts + * it to a JSON string, and returns the result. This is a fallback, if no + * special method #to_json was defined for some object. + */ +static VALUE mObject_to_json(int argc, VALUE *argv, VALUE self) +{ + VALUE state; + VALUE string = rb_funcall(self, i_to_s, 0); + rb_scan_args(argc, argv, "01", &state); + Check_Type(string, T_STRING); + state = cState_from_state_s(cState, state); + return cState_partial_generate(state, string); +} + +static void State_free(void *ptr) +{ + JSON_Generator_State *state = ptr; + if (state->indent) ruby_xfree(state->indent); + if (state->space) ruby_xfree(state->space); + if (state->space_before) ruby_xfree(state->space_before); + if (state->object_nl) ruby_xfree(state->object_nl); + if (state->array_nl) ruby_xfree(state->array_nl); + if (state->array_delim) fbuffer_free(state->array_delim); + if (state->object_delim) fbuffer_free(state->object_delim); + if (state->object_delim2) fbuffer_free(state->object_delim2); + ruby_xfree(state); +} + +static size_t State_memsize(const void *ptr) +{ + const JSON_Generator_State *state = ptr; + size_t size = sizeof(*state); + if (state->indent) size += state->indent_len + 1; + if (state->space) size += state->space_len + 1; + if (state->space_before) size += state->space_before_len + 1; + if (state->object_nl) size += state->object_nl_len + 1; + if (state->array_nl) size += state->array_nl_len + 1; + if (state->array_delim) size += FBUFFER_CAPA(state->array_delim); + if (state->object_delim) size += FBUFFER_CAPA(state->object_delim); + if (state->object_delim2) size += FBUFFER_CAPA(state->object_delim2); + return size; +} + +#ifdef NEW_TYPEDDATA_WRAPPER +static const rb_data_type_t JSON_Generator_State_type = { + "JSON/Generator/State", + {NULL, State_free, State_memsize,}, +#ifdef RUBY_TYPED_FREE_IMMEDIATELY + 0, 0, + RUBY_TYPED_FREE_IMMEDIATELY, +#endif +}; +#endif + +static JSON_Generator_State *State_allocate(void) +{ + JSON_Generator_State *state = ZALLOC(JSON_Generator_State); + return state; +} + +static VALUE cState_s_allocate(VALUE klass) +{ + JSON_Generator_State *state = State_allocate(); + return TypedData_Wrap_Struct(klass, &JSON_Generator_State_type, state); +} + +/* + * call-seq: configure(opts) + * + * Configure this State instance with the Hash _opts_, and return + * itself. + */ +static VALUE cState_configure(VALUE self, VALUE opts) +{ + VALUE tmp; + GET_STATE(self); + tmp = rb_check_convert_type(opts, T_HASH, "Hash", "to_hash"); + if (NIL_P(tmp)) tmp = rb_convert_type(opts, T_HASH, "Hash", "to_h"); + opts = tmp; + tmp = rb_hash_aref(opts, ID2SYM(i_indent)); + if (RTEST(tmp)) { + unsigned long len; + Check_Type(tmp, T_STRING); + len = RSTRING_LEN(tmp); + state->indent = fstrndup(RSTRING_PTR(tmp), len + 1); + state->indent_len = len; + } + tmp = rb_hash_aref(opts, ID2SYM(i_space)); + if (RTEST(tmp)) { + unsigned long len; + Check_Type(tmp, T_STRING); + len = RSTRING_LEN(tmp); + state->space = fstrndup(RSTRING_PTR(tmp), len + 1); + state->space_len = len; + } + tmp = rb_hash_aref(opts, ID2SYM(i_space_before)); + if (RTEST(tmp)) { + unsigned long len; + Check_Type(tmp, T_STRING); + len = RSTRING_LEN(tmp); + state->space_before = fstrndup(RSTRING_PTR(tmp), len + 1); + state->space_before_len = len; + } + tmp = rb_hash_aref(opts, ID2SYM(i_array_nl)); + if (RTEST(tmp)) { + unsigned long len; + Check_Type(tmp, T_STRING); + len = RSTRING_LEN(tmp); + state->array_nl = fstrndup(RSTRING_PTR(tmp), len + 1); + state->array_nl_len = len; + } + tmp = rb_hash_aref(opts, ID2SYM(i_object_nl)); + if (RTEST(tmp)) { + unsigned long len; + Check_Type(tmp, T_STRING); + len = RSTRING_LEN(tmp); + state->object_nl = fstrndup(RSTRING_PTR(tmp), len + 1); + state->object_nl_len = len; + } + tmp = ID2SYM(i_max_nesting); + state->max_nesting = 100; + if (option_given_p(opts, tmp)) { + VALUE max_nesting = rb_hash_aref(opts, tmp); + if (RTEST(max_nesting)) { + Check_Type(max_nesting, T_FIXNUM); + state->max_nesting = FIX2LONG(max_nesting); + } else { + state->max_nesting = 0; + } + } + tmp = ID2SYM(i_depth); + state->depth = 0; + if (option_given_p(opts, tmp)) { + VALUE depth = rb_hash_aref(opts, tmp); + if (RTEST(depth)) { + Check_Type(depth, T_FIXNUM); + state->depth = FIX2LONG(depth); + } else { + state->depth = 0; + } + } + tmp = ID2SYM(i_buffer_initial_length); + if (option_given_p(opts, tmp)) { + VALUE buffer_initial_length = rb_hash_aref(opts, tmp); + if (RTEST(buffer_initial_length)) { + long initial_length; + Check_Type(buffer_initial_length, T_FIXNUM); + initial_length = FIX2LONG(buffer_initial_length); + if (initial_length > 0) state->buffer_initial_length = initial_length; + } + } + tmp = rb_hash_aref(opts, ID2SYM(i_allow_nan)); + state->allow_nan = RTEST(tmp); + tmp = rb_hash_aref(opts, ID2SYM(i_ascii_only)); + state->ascii_only = RTEST(tmp); + tmp = rb_hash_aref(opts, ID2SYM(i_quirks_mode)); + state->quirks_mode = RTEST(tmp); + return self; +} + +static void set_state_ivars(VALUE hash, VALUE state) +{ + VALUE ivars = rb_obj_instance_variables(state); + int i = 0; + for (i = 0; i < RARRAY_LEN(ivars); i++) { + VALUE key = rb_funcall(rb_ary_entry(ivars, i), i_to_s, 0); + long key_len = RSTRING_LEN(key); + VALUE value = rb_iv_get(state, StringValueCStr(key)); + rb_hash_aset(hash, rb_str_intern(rb_str_substr(key, 1, key_len - 1)), value); + } +} + +/* + * call-seq: to_h + * + * Returns the configuration instance variables as a hash, that can be + * passed to the configure method. + */ +static VALUE cState_to_h(VALUE self) +{ + VALUE result = rb_hash_new(); + GET_STATE(self); + set_state_ivars(result, self); + rb_hash_aset(result, ID2SYM(i_indent), rb_str_new(state->indent, state->indent_len)); + rb_hash_aset(result, ID2SYM(i_space), rb_str_new(state->space, state->space_len)); + rb_hash_aset(result, ID2SYM(i_space_before), rb_str_new(state->space_before, state->space_before_len)); + rb_hash_aset(result, ID2SYM(i_object_nl), rb_str_new(state->object_nl, state->object_nl_len)); + rb_hash_aset(result, ID2SYM(i_array_nl), rb_str_new(state->array_nl, state->array_nl_len)); + rb_hash_aset(result, ID2SYM(i_allow_nan), state->allow_nan ? Qtrue : Qfalse); + rb_hash_aset(result, ID2SYM(i_ascii_only), state->ascii_only ? Qtrue : Qfalse); + rb_hash_aset(result, ID2SYM(i_quirks_mode), state->quirks_mode ? Qtrue : Qfalse); + rb_hash_aset(result, ID2SYM(i_max_nesting), LONG2FIX(state->max_nesting)); + rb_hash_aset(result, ID2SYM(i_depth), LONG2FIX(state->depth)); + rb_hash_aset(result, ID2SYM(i_buffer_initial_length), LONG2FIX(state->buffer_initial_length)); + return result; +} + +/* +* call-seq: [](name) +* +* Returns the value returned by method +name+. +*/ +static VALUE cState_aref(VALUE self, VALUE name) +{ + name = rb_funcall(name, i_to_s, 0); + if (RTEST(rb_funcall(self, i_respond_to_p, 1, name))) { + return rb_funcall(self, i_send, 1, name); + } else { + return rb_ivar_get(self, rb_intern_str(rb_str_concat(rb_str_new2("@"), name))); + } +} + +/* +* call-seq: []=(name, value) +* +* Sets the attribute name to value. +*/ +static VALUE cState_aset(VALUE self, VALUE name, VALUE value) +{ + VALUE name_writer; + + name = rb_funcall(name, i_to_s, 0); + name_writer = rb_str_cat2(rb_str_dup(name), "="); + if (RTEST(rb_funcall(self, i_respond_to_p, 1, name_writer))) { + return rb_funcall(self, i_send, 2, name_writer, value); + } else { + rb_ivar_set(self, rb_intern_str(rb_str_concat(rb_str_new2("@"), name)), value); + } + return Qnil; +} + +static void generate_json_object(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj) +{ + char *object_nl = state->object_nl; + long object_nl_len = state->object_nl_len; + char *indent = state->indent; + long indent_len = state->indent_len; + long max_nesting = state->max_nesting; + char *delim = FBUFFER_PTR(state->object_delim); + long delim_len = FBUFFER_LEN(state->object_delim); + char *delim2 = FBUFFER_PTR(state->object_delim2); + long delim2_len = FBUFFER_LEN(state->object_delim2); + long depth = ++state->depth; + int i, j; + VALUE key, key_to_s, keys; + if (max_nesting != 0 && depth > max_nesting) { + fbuffer_free(buffer); + rb_raise(eNestingError, "nesting of %ld is too deep", --state->depth); + } + fbuffer_append_char(buffer, '{'); + keys = rb_funcall(obj, i_keys, 0); + for(i = 0; i < RARRAY_LEN(keys); i++) { + if (i > 0) fbuffer_append(buffer, delim, delim_len); + if (object_nl) { + fbuffer_append(buffer, object_nl, object_nl_len); + } + if (indent) { + for (j = 0; j < depth; j++) { + fbuffer_append(buffer, indent, indent_len); + } + } + key = rb_ary_entry(keys, i); + key_to_s = rb_funcall(key, i_to_s, 0); + Check_Type(key_to_s, T_STRING); + generate_json(buffer, Vstate, state, key_to_s); + fbuffer_append(buffer, delim2, delim2_len); + generate_json(buffer, Vstate, state, rb_hash_aref(obj, key)); + } + depth = --state->depth; + if (object_nl) { + fbuffer_append(buffer, object_nl, object_nl_len); + if (indent) { + for (j = 0; j < depth; j++) { + fbuffer_append(buffer, indent, indent_len); + } + } + } + fbuffer_append_char(buffer, '}'); +} + +static void generate_json_array(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj) +{ + char *array_nl = state->array_nl; + long array_nl_len = state->array_nl_len; + char *indent = state->indent; + long indent_len = state->indent_len; + long max_nesting = state->max_nesting; + char *delim = FBUFFER_PTR(state->array_delim); + long delim_len = FBUFFER_LEN(state->array_delim); + long depth = ++state->depth; + int i, j; + if (max_nesting != 0 && depth > max_nesting) { + fbuffer_free(buffer); + rb_raise(eNestingError, "nesting of %ld is too deep", --state->depth); + } + fbuffer_append_char(buffer, '['); + if (array_nl) fbuffer_append(buffer, array_nl, array_nl_len); + for(i = 0; i < RARRAY_LEN(obj); i++) { + if (i > 0) fbuffer_append(buffer, delim, delim_len); + if (indent) { + for (j = 0; j < depth; j++) { + fbuffer_append(buffer, indent, indent_len); + } + } + generate_json(buffer, Vstate, state, rb_ary_entry(obj, i)); + } + state->depth = --depth; + if (array_nl) { + fbuffer_append(buffer, array_nl, array_nl_len); + if (indent) { + for (j = 0; j < depth; j++) { + fbuffer_append(buffer, indent, indent_len); + } + } + } + fbuffer_append_char(buffer, ']'); +} + +static void generate_json_string(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj) +{ + fbuffer_append_char(buffer, '"'); +#ifdef HAVE_RUBY_ENCODING_H + obj = rb_funcall(obj, i_encode, 1, CEncoding_UTF_8); +#endif + if (state->ascii_only) { + convert_UTF8_to_JSON_ASCII(buffer, obj); + } else { + convert_UTF8_to_JSON(buffer, obj); + } + fbuffer_append_char(buffer, '"'); +} + +static void generate_json_null(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj) +{ + fbuffer_append(buffer, "null", 4); +} + +static void generate_json_false(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj) +{ + fbuffer_append(buffer, "false", 5); +} + +static void generate_json_true(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj) +{ + fbuffer_append(buffer, "true", 4); +} + +static void generate_json_fixnum(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj) +{ + fbuffer_append_long(buffer, FIX2LONG(obj)); +} + +static void generate_json_bignum(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj) +{ + VALUE tmp = rb_funcall(obj, i_to_s, 0); + fbuffer_append_str(buffer, tmp); +} + +static void generate_json_float(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj) +{ + double value = RFLOAT_VALUE(obj); + char allow_nan = state->allow_nan; + VALUE tmp = rb_funcall(obj, i_to_s, 0); + if (!allow_nan) { + if (isinf(value)) { + fbuffer_free(buffer); + rb_raise(eGeneratorError, "%u: %"PRIsVALUE" not allowed in JSON", __LINE__, RB_OBJ_STRING(tmp)); + } else if (isnan(value)) { + fbuffer_free(buffer); + rb_raise(eGeneratorError, "%u: %"PRIsVALUE" not allowed in JSON", __LINE__, RB_OBJ_STRING(tmp)); + } + } + fbuffer_append_str(buffer, tmp); +} + +static void generate_json(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj) +{ + VALUE tmp; + VALUE klass = CLASS_OF(obj); + if (klass == rb_cHash) { + generate_json_object(buffer, Vstate, state, obj); + } else if (klass == rb_cArray) { + generate_json_array(buffer, Vstate, state, obj); + } else if (klass == rb_cString) { + generate_json_string(buffer, Vstate, state, obj); + } else if (obj == Qnil) { + generate_json_null(buffer, Vstate, state, obj); + } else if (obj == Qfalse) { + generate_json_false(buffer, Vstate, state, obj); + } else if (obj == Qtrue) { + generate_json_true(buffer, Vstate, state, obj); + } else if (klass == rb_cFixnum) { + generate_json_fixnum(buffer, Vstate, state, obj); + } else if (klass == rb_cBignum) { + generate_json_bignum(buffer, Vstate, state, obj); + } else if (klass == rb_cFloat) { + generate_json_float(buffer, Vstate, state, obj); + } else if (rb_respond_to(obj, i_to_json)) { + tmp = rb_funcall(obj, i_to_json, 1, Vstate); + Check_Type(tmp, T_STRING); + fbuffer_append_str(buffer, tmp); + } else { + tmp = rb_funcall(obj, i_to_s, 0); + Check_Type(tmp, T_STRING); + generate_json_string(buffer, Vstate, state, tmp); + } +} + +static FBuffer *cState_prepare_buffer(VALUE self) +{ + FBuffer *buffer; + GET_STATE(self); + buffer = fbuffer_alloc(state->buffer_initial_length); + + if (state->object_delim) { + fbuffer_clear(state->object_delim); + } else { + state->object_delim = fbuffer_alloc(16); + } + fbuffer_append_char(state->object_delim, ','); + if (state->object_delim2) { + fbuffer_clear(state->object_delim2); + } else { + state->object_delim2 = fbuffer_alloc(16); + } + if (state->space_before) fbuffer_append(state->object_delim2, state->space_before, state->space_before_len); + fbuffer_append_char(state->object_delim2, ':'); + if (state->space) fbuffer_append(state->object_delim2, state->space, state->space_len); + + if (state->array_delim) { + fbuffer_clear(state->array_delim); + } else { + state->array_delim = fbuffer_alloc(16); + } + fbuffer_append_char(state->array_delim, ','); + if (state->array_nl) fbuffer_append(state->array_delim, state->array_nl, state->array_nl_len); + return buffer; +} + +static VALUE cState_partial_generate(VALUE self, VALUE obj) +{ + FBuffer *buffer = cState_prepare_buffer(self); + GET_STATE(self); + generate_json(buffer, self, state, obj); + return fbuffer_to_s(buffer); +} + +/* + * This function returns true if string is either a JSON array or JSON object. + * It might suffer from false positives, e. g. syntactically incorrect JSON in + * the string or certain UTF-8 characters on the right hand side. + */ +static int isArrayOrObject(VALUE string) +{ + long string_len = RSTRING_LEN(string); + char *p = RSTRING_PTR(string), *q = p + string_len - 1; + if (string_len < 2) return 0; + for (; p < q && isspace((unsigned char)*p); p++); + for (; q > p && isspace((unsigned char)*q); q--); + return (*p == '[' && *q == ']') || (*p == '{' && *q == '}'); +} + +/* + * call-seq: generate(obj) + * + * Generates a valid JSON document from object +obj+ and returns the + * result. If no valid JSON document can be created this method raises a + * GeneratorError exception. + */ +static VALUE cState_generate(VALUE self, VALUE obj) +{ + VALUE result = cState_partial_generate(self, obj); + GET_STATE(self); + if (!state->quirks_mode && !isArrayOrObject(result)) { + rb_raise(eGeneratorError, "only generation of JSON objects or arrays allowed"); + } + return result; +} + +/* + * call-seq: new(opts = {}) + * + * Instantiates a new State object, configured by _opts_. + * + * _opts_ can have the following keys: + * + * * *indent*: a string used to indent levels (default: ''), + * * *space*: a string that is put after, a : or , delimiter (default: ''), + * * *space_before*: a string that is put before a : pair delimiter (default: ''), + * * *object_nl*: a string that is put at the end of a JSON object (default: ''), + * * *array_nl*: a string that is put at the end of a JSON array (default: ''), + * * *allow_nan*: true if NaN, Infinity, and -Infinity should be + * generated, otherwise an exception is thrown, if these values are + * encountered. This options defaults to false. + * * *quirks_mode*: Enables quirks_mode for parser, that is for example + * generating single JSON values instead of documents is possible. + * * *buffer_initial_length*: sets the initial length of the generator's + * internal buffer. + */ +static VALUE cState_initialize(int argc, VALUE *argv, VALUE self) +{ + VALUE opts; + GET_STATE(self); + state->max_nesting = 100; + state->buffer_initial_length = FBUFFER_INITIAL_LENGTH_DEFAULT; + rb_scan_args(argc, argv, "01", &opts); + if (!NIL_P(opts)) cState_configure(self, opts); + return self; +} + +/* + * call-seq: initialize_copy(orig) + * + * Initializes this object from orig if it can be duplicated/cloned and returns + * it. +*/ +static VALUE cState_init_copy(VALUE obj, VALUE orig) +{ + JSON_Generator_State *objState, *origState; + + if (obj == orig) return obj; + GET_STATE_TO(obj, objState); + GET_STATE_TO(orig, origState); + if (!objState) rb_raise(rb_eArgError, "unallocated JSON::State"); + + MEMCPY(objState, origState, JSON_Generator_State, 1); + objState->indent = fstrndup(origState->indent, origState->indent_len); + objState->space = fstrndup(origState->space, origState->space_len); + objState->space_before = fstrndup(origState->space_before, origState->space_before_len); + objState->object_nl = fstrndup(origState->object_nl, origState->object_nl_len); + objState->array_nl = fstrndup(origState->array_nl, origState->array_nl_len); + if (origState->array_delim) objState->array_delim = fbuffer_dup(origState->array_delim); + if (origState->object_delim) objState->object_delim = fbuffer_dup(origState->object_delim); + if (origState->object_delim2) objState->object_delim2 = fbuffer_dup(origState->object_delim2); + return obj; +} + +/* + * call-seq: from_state(opts) + * + * Creates a State object from _opts_, which ought to be Hash to create a + * new State instance configured by _opts_, something else to create an + * unconfigured instance. If _opts_ is a State object, it is just returned. + */ +static VALUE cState_from_state_s(VALUE self, VALUE opts) +{ + if (rb_obj_is_kind_of(opts, self)) { + return opts; + } else if (rb_obj_is_kind_of(opts, rb_cHash)) { + return rb_funcall(self, i_new, 1, opts); + } else { + if (NIL_P(CJSON_SAFE_STATE_PROTOTYPE)) { + CJSON_SAFE_STATE_PROTOTYPE = rb_const_get(mJSON, i_SAFE_STATE_PROTOTYPE); + } + return rb_funcall(CJSON_SAFE_STATE_PROTOTYPE, i_dup, 0); + } +} + +/* + * call-seq: indent() + * + * Returns the string that is used to indent levels in the JSON text. + */ +static VALUE cState_indent(VALUE self) +{ + GET_STATE(self); + return state->indent ? rb_str_new(state->indent, state->indent_len) : rb_str_new2(""); +} + +/* + * call-seq: indent=(indent) + * + * Sets the string that is used to indent levels in the JSON text. + */ +static VALUE cState_indent_set(VALUE self, VALUE indent) +{ + unsigned long len; + GET_STATE(self); + Check_Type(indent, T_STRING); + len = RSTRING_LEN(indent); + if (len == 0) { + if (state->indent) { + ruby_xfree(state->indent); + state->indent = NULL; + state->indent_len = 0; + } + } else { + if (state->indent) ruby_xfree(state->indent); + state->indent = strdup(RSTRING_PTR(indent)); + state->indent_len = len; + } + return Qnil; +} + +/* + * call-seq: space() + * + * Returns the string that is used to insert a space between the tokens in a JSON + * string. + */ +static VALUE cState_space(VALUE self) +{ + GET_STATE(self); + return state->space ? rb_str_new(state->space, state->space_len) : rb_str_new2(""); +} + +/* + * call-seq: space=(space) + * + * Sets _space_ to the string that is used to insert a space between the tokens in a JSON + * string. + */ +static VALUE cState_space_set(VALUE self, VALUE space) +{ + unsigned long len; + GET_STATE(self); + Check_Type(space, T_STRING); + len = RSTRING_LEN(space); + if (len == 0) { + if (state->space) { + ruby_xfree(state->space); + state->space = NULL; + state->space_len = 0; + } + } else { + if (state->space) ruby_xfree(state->space); + state->space = strdup(RSTRING_PTR(space)); + state->space_len = len; + } + return Qnil; +} + +/* + * call-seq: space_before() + * + * Returns the string that is used to insert a space before the ':' in JSON objects. + */ +static VALUE cState_space_before(VALUE self) +{ + GET_STATE(self); + return state->space_before ? rb_str_new(state->space_before, state->space_before_len) : rb_str_new2(""); +} + +/* + * call-seq: space_before=(space_before) + * + * Sets the string that is used to insert a space before the ':' in JSON objects. + */ +static VALUE cState_space_before_set(VALUE self, VALUE space_before) +{ + unsigned long len; + GET_STATE(self); + Check_Type(space_before, T_STRING); + len = RSTRING_LEN(space_before); + if (len == 0) { + if (state->space_before) { + ruby_xfree(state->space_before); + state->space_before = NULL; + state->space_before_len = 0; + } + } else { + if (state->space_before) ruby_xfree(state->space_before); + state->space_before = strdup(RSTRING_PTR(space_before)); + state->space_before_len = len; + } + return Qnil; +} + +/* + * call-seq: object_nl() + * + * This string is put at the end of a line that holds a JSON object (or + * Hash). + */ +static VALUE cState_object_nl(VALUE self) +{ + GET_STATE(self); + return state->object_nl ? rb_str_new(state->object_nl, state->object_nl_len) : rb_str_new2(""); +} + +/* + * call-seq: object_nl=(object_nl) + * + * This string is put at the end of a line that holds a JSON object (or + * Hash). + */ +static VALUE cState_object_nl_set(VALUE self, VALUE object_nl) +{ + unsigned long len; + GET_STATE(self); + Check_Type(object_nl, T_STRING); + len = RSTRING_LEN(object_nl); + if (len == 0) { + if (state->object_nl) { + ruby_xfree(state->object_nl); + state->object_nl = NULL; + } + } else { + if (state->object_nl) ruby_xfree(state->object_nl); + state->object_nl = strdup(RSTRING_PTR(object_nl)); + state->object_nl_len = len; + } + return Qnil; +} + +/* + * call-seq: array_nl() + * + * This string is put at the end of a line that holds a JSON array. + */ +static VALUE cState_array_nl(VALUE self) +{ + GET_STATE(self); + return state->array_nl ? rb_str_new(state->array_nl, state->array_nl_len) : rb_str_new2(""); +} + +/* + * call-seq: array_nl=(array_nl) + * + * This string is put at the end of a line that holds a JSON array. + */ +static VALUE cState_array_nl_set(VALUE self, VALUE array_nl) +{ + unsigned long len; + GET_STATE(self); + Check_Type(array_nl, T_STRING); + len = RSTRING_LEN(array_nl); + if (len == 0) { + if (state->array_nl) { + ruby_xfree(state->array_nl); + state->array_nl = NULL; + } + } else { + if (state->array_nl) ruby_xfree(state->array_nl); + state->array_nl = strdup(RSTRING_PTR(array_nl)); + state->array_nl_len = len; + } + return Qnil; +} + + +/* +* call-seq: check_circular? +* +* Returns true, if circular data structures should be checked, +* otherwise returns false. +*/ +static VALUE cState_check_circular_p(VALUE self) +{ + GET_STATE(self); + return state->max_nesting ? Qtrue : Qfalse; +} + +/* + * call-seq: max_nesting + * + * This integer returns the maximum level of data structure nesting in + * the generated JSON, max_nesting = 0 if no maximum is checked. + */ +static VALUE cState_max_nesting(VALUE self) +{ + GET_STATE(self); + return LONG2FIX(state->max_nesting); +} + +/* + * call-seq: max_nesting=(depth) + * + * This sets the maximum level of data structure nesting in the generated JSON + * to the integer depth, max_nesting = 0 if no maximum should be checked. + */ +static VALUE cState_max_nesting_set(VALUE self, VALUE depth) +{ + GET_STATE(self); + Check_Type(depth, T_FIXNUM); + return state->max_nesting = FIX2LONG(depth); +} + +/* + * call-seq: allow_nan? + * + * Returns true, if NaN, Infinity, and -Infinity should be generated, otherwise + * returns false. + */ +static VALUE cState_allow_nan_p(VALUE self) +{ + GET_STATE(self); + return state->allow_nan ? Qtrue : Qfalse; +} + +/* + * call-seq: ascii_only? + * + * Returns true, if NaN, Infinity, and -Infinity should be generated, otherwise + * returns false. + */ +static VALUE cState_ascii_only_p(VALUE self) +{ + GET_STATE(self); + return state->ascii_only ? Qtrue : Qfalse; +} + +/* + * call-seq: quirks_mode? + * + * Returns true, if quirks mode is enabled. Otherwise returns false. + */ +static VALUE cState_quirks_mode_p(VALUE self) +{ + GET_STATE(self); + return state->quirks_mode ? Qtrue : Qfalse; +} + +/* + * call-seq: quirks_mode=(enable) + * + * If set to true, enables the quirks_mode mode. + */ +static VALUE cState_quirks_mode_set(VALUE self, VALUE enable) +{ + GET_STATE(self); + state->quirks_mode = RTEST(enable); + return Qnil; +} + +/* + * call-seq: depth + * + * This integer returns the current depth of data structure nesting. + */ +static VALUE cState_depth(VALUE self) +{ + GET_STATE(self); + return LONG2FIX(state->depth); +} + +/* + * call-seq: depth=(depth) + * + * This sets the maximum level of data structure nesting in the generated JSON + * to the integer depth, max_nesting = 0 if no maximum should be checked. + */ +static VALUE cState_depth_set(VALUE self, VALUE depth) +{ + GET_STATE(self); + Check_Type(depth, T_FIXNUM); + state->depth = FIX2LONG(depth); + return Qnil; +} + +/* + * call-seq: buffer_initial_length + * + * This integer returns the current initial length of the buffer. + */ +static VALUE cState_buffer_initial_length(VALUE self) +{ + GET_STATE(self); + return LONG2FIX(state->buffer_initial_length); +} + +/* + * call-seq: buffer_initial_length=(length) + * + * This sets the initial length of the buffer to +length+, if +length+ > 0, + * otherwise its value isn't changed. + */ +static VALUE cState_buffer_initial_length_set(VALUE self, VALUE buffer_initial_length) +{ + long initial_length; + GET_STATE(self); + Check_Type(buffer_initial_length, T_FIXNUM); + initial_length = FIX2LONG(buffer_initial_length); + if (initial_length > 0) { + state->buffer_initial_length = initial_length; + } + return Qnil; +} + +/* + * + */ +void Init_generator(void) +{ + rb_require("json/common"); + + mJSON = rb_define_module("JSON"); + mExt = rb_define_module_under(mJSON, "Ext"); + mGenerator = rb_define_module_under(mExt, "Generator"); + + eGeneratorError = rb_path2class("JSON::GeneratorError"); + eNestingError = rb_path2class("JSON::NestingError"); + + cState = rb_define_class_under(mGenerator, "State", rb_cObject); + rb_define_alloc_func(cState, cState_s_allocate); + rb_define_singleton_method(cState, "from_state", cState_from_state_s, 1); + rb_define_method(cState, "initialize", cState_initialize, -1); + rb_define_method(cState, "initialize_copy", cState_init_copy, 1); + rb_define_method(cState, "indent", cState_indent, 0); + rb_define_method(cState, "indent=", cState_indent_set, 1); + rb_define_method(cState, "space", cState_space, 0); + rb_define_method(cState, "space=", cState_space_set, 1); + rb_define_method(cState, "space_before", cState_space_before, 0); + rb_define_method(cState, "space_before=", cState_space_before_set, 1); + rb_define_method(cState, "object_nl", cState_object_nl, 0); + rb_define_method(cState, "object_nl=", cState_object_nl_set, 1); + rb_define_method(cState, "array_nl", cState_array_nl, 0); + rb_define_method(cState, "array_nl=", cState_array_nl_set, 1); + rb_define_method(cState, "max_nesting", cState_max_nesting, 0); + rb_define_method(cState, "max_nesting=", cState_max_nesting_set, 1); + rb_define_method(cState, "check_circular?", cState_check_circular_p, 0); + rb_define_method(cState, "allow_nan?", cState_allow_nan_p, 0); + rb_define_method(cState, "ascii_only?", cState_ascii_only_p, 0); + rb_define_method(cState, "quirks_mode?", cState_quirks_mode_p, 0); + rb_define_method(cState, "quirks_mode", cState_quirks_mode_p, 0); + rb_define_method(cState, "quirks_mode=", cState_quirks_mode_set, 1); + rb_define_method(cState, "depth", cState_depth, 0); + rb_define_method(cState, "depth=", cState_depth_set, 1); + rb_define_method(cState, "buffer_initial_length", cState_buffer_initial_length, 0); + rb_define_method(cState, "buffer_initial_length=", cState_buffer_initial_length_set, 1); + rb_define_method(cState, "configure", cState_configure, 1); + rb_define_alias(cState, "merge", "configure"); + rb_define_method(cState, "to_h", cState_to_h, 0); + rb_define_alias(cState, "to_hash", "to_h"); + rb_define_method(cState, "[]", cState_aref, 1); + rb_define_method(cState, "[]=", cState_aset, 2); + rb_define_method(cState, "generate", cState_generate, 1); + + mGeneratorMethods = rb_define_module_under(mGenerator, "GeneratorMethods"); + mObject = rb_define_module_under(mGeneratorMethods, "Object"); + rb_define_method(mObject, "to_json", mObject_to_json, -1); + mHash = rb_define_module_under(mGeneratorMethods, "Hash"); + rb_define_method(mHash, "to_json", mHash_to_json, -1); + mArray = rb_define_module_under(mGeneratorMethods, "Array"); + rb_define_method(mArray, "to_json", mArray_to_json, -1); + mFixnum = rb_define_module_under(mGeneratorMethods, "Fixnum"); + rb_define_method(mFixnum, "to_json", mFixnum_to_json, -1); + mBignum = rb_define_module_under(mGeneratorMethods, "Bignum"); + rb_define_method(mBignum, "to_json", mBignum_to_json, -1); + mFloat = rb_define_module_under(mGeneratorMethods, "Float"); + rb_define_method(mFloat, "to_json", mFloat_to_json, -1); + mString = rb_define_module_under(mGeneratorMethods, "String"); + rb_define_singleton_method(mString, "included", mString_included_s, 1); + rb_define_method(mString, "to_json", mString_to_json, -1); + rb_define_method(mString, "to_json_raw", mString_to_json_raw, -1); + rb_define_method(mString, "to_json_raw_object", mString_to_json_raw_object, 0); + mString_Extend = rb_define_module_under(mString, "Extend"); + rb_define_method(mString_Extend, "json_create", mString_Extend_json_create, 1); + mTrueClass = rb_define_module_under(mGeneratorMethods, "TrueClass"); + rb_define_method(mTrueClass, "to_json", mTrueClass_to_json, -1); + mFalseClass = rb_define_module_under(mGeneratorMethods, "FalseClass"); + rb_define_method(mFalseClass, "to_json", mFalseClass_to_json, -1); + mNilClass = rb_define_module_under(mGeneratorMethods, "NilClass"); + rb_define_method(mNilClass, "to_json", mNilClass_to_json, -1); + + CRegexp_MULTILINE = rb_const_get(rb_cRegexp, rb_intern("MULTILINE")); + i_to_s = rb_intern("to_s"); + i_to_json = rb_intern("to_json"); + i_new = rb_intern("new"); + i_indent = rb_intern("indent"); + i_space = rb_intern("space"); + i_space_before = rb_intern("space_before"); + i_object_nl = rb_intern("object_nl"); + i_array_nl = rb_intern("array_nl"); + i_max_nesting = rb_intern("max_nesting"); + i_allow_nan = rb_intern("allow_nan"); + i_ascii_only = rb_intern("ascii_only"); + i_quirks_mode = rb_intern("quirks_mode"); + i_depth = rb_intern("depth"); + i_buffer_initial_length = rb_intern("buffer_initial_length"); + i_pack = rb_intern("pack"); + i_unpack = rb_intern("unpack"); + i_create_id = rb_intern("create_id"); + i_extend = rb_intern("extend"); + i_key_p = rb_intern("key?"); + i_aref = rb_intern("[]"); + i_send = rb_intern("__send__"); + i_respond_to_p = rb_intern("respond_to?"); + i_match = rb_intern("match"); + i_keys = rb_intern("keys"); + i_dup = rb_intern("dup"); +#ifdef HAVE_RUBY_ENCODING_H + CEncoding_UTF_8 = rb_funcall(rb_path2class("Encoding"), rb_intern("find"), 1, rb_str_new2("utf-8")); + i_encoding = rb_intern("encoding"); + i_encode = rb_intern("encode"); +#endif + i_SAFE_STATE_PROTOTYPE = rb_intern("SAFE_STATE_PROTOTYPE"); + CJSON_SAFE_STATE_PROTOTYPE = Qnil; +} |