summaryrefslogtreecommitdiff
path: root/ext/json/generator
diff options
context:
space:
mode:
authorhsbt <hsbt@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-04-12 08:36:37 +0000
committerhsbt <hsbt@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-04-12 08:36:37 +0000
commit2e4f0af00f85ca228bcf5fa919882359411c652a (patch)
tree6317ef3d0c352a8d7496139f34277e224fe3d4ac /ext/json/generator
parent7b14512bee222bdb6392e865b00ef4b4c42b9364 (diff)
* ext/json/*, test/json/*: Reverted r50231. Because it's not works with
cross-compile environment. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50267 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/json/generator')
-rw-r--r--ext/json/generator/depend21
-rw-r--r--ext/json/generator/extconf.rb4
-rw-r--r--ext/json/generator/generator.c1463
-rw-r--r--ext/json/generator/generator.h167
4 files changed, 1655 insertions, 0 deletions
diff --git a/ext/json/generator/depend b/ext/json/generator/depend
new file mode 100644
index 00000000000..b7373cde1f4
--- /dev/null
+++ b/ext/json/generator/depend
@@ -0,0 +1,21 @@
+$(OBJS): $(ruby_headers)
+generator.o: generator.c generator.h $(srcdir)/../fbuffer/fbuffer.h
+
+# AUTOGENERATED DEPENDENCIES START
+generator.o: $(RUBY_EXTCONF_H)
+generator.o: $(arch_hdrdir)/ruby/config.h
+generator.o: $(hdrdir)/ruby/defines.h
+generator.o: $(hdrdir)/ruby/encoding.h
+generator.o: $(hdrdir)/ruby/intern.h
+generator.o: $(hdrdir)/ruby/missing.h
+generator.o: $(hdrdir)/ruby/oniguruma.h
+generator.o: $(hdrdir)/ruby/re.h
+generator.o: $(hdrdir)/ruby/regex.h
+generator.o: $(hdrdir)/ruby/ruby.h
+generator.o: $(hdrdir)/ruby/st.h
+generator.o: $(hdrdir)/ruby/subst.h
+generator.o: $(top_srcdir)/ext/json/fbuffer/fbuffer.h
+generator.o: $(top_srcdir)/include/ruby.h
+generator.o: generator.c
+generator.o: generator.h
+# AUTOGENERATED DEPENDENCIES END
diff --git a/ext/json/generator/extconf.rb b/ext/json/generator/extconf.rb
new file mode 100644
index 00000000000..8627c5f4bdd
--- /dev/null
+++ b/ext/json/generator/extconf.rb
@@ -0,0 +1,4 @@
+require 'mkmf'
+
+$defs << "-DJSON_GENERATOR"
+create_makefile 'json/ext/generator'
diff --git a/ext/json/generator/generator.c b/ext/json/generator/generator.c
new file mode 100644
index 00000000000..baf5360bb17
--- /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;
+}
diff --git a/ext/json/generator/generator.h b/ext/json/generator/generator.h
new file mode 100644
index 00000000000..416159a9c5b
--- /dev/null
+++ b/ext/json/generator/generator.h
@@ -0,0 +1,167 @@
+#ifndef _GENERATOR_H_
+#define _GENERATOR_H_
+
+#include <string.h>
+#include <math.h>
+#include <ctype.h>
+
+#include "ruby.h"
+
+#ifdef HAVE_RUBY_RE_H
+#include "ruby/re.h"
+#else
+#include "re.h"
+#endif
+
+#ifndef rb_intern_str
+#define rb_intern_str(string) SYM2ID(rb_str_intern(string))
+#endif
+
+#ifndef rb_obj_instance_variables
+#define rb_obj_instance_variables(object) rb_funcall(object, rb_intern("instance_variables"), 0)
+#endif
+
+#define option_given_p(opts, key) RTEST(rb_funcall(opts, i_key_p, 1, key))
+
+/* unicode definitions */
+
+#define UNI_STRICT_CONVERSION 1
+
+typedef unsigned long UTF32; /* at least 32 bits */
+typedef unsigned short UTF16; /* at least 16 bits */
+typedef unsigned char UTF8; /* typically 8 bits */
+
+#define UNI_REPLACEMENT_CHAR (UTF32)0x0000FFFD
+#define UNI_MAX_BMP (UTF32)0x0000FFFF
+#define UNI_MAX_UTF16 (UTF32)0x0010FFFF
+#define UNI_MAX_UTF32 (UTF32)0x7FFFFFFF
+#define UNI_MAX_LEGAL_UTF32 (UTF32)0x0010FFFF
+
+#define UNI_SUR_HIGH_START (UTF32)0xD800
+#define UNI_SUR_HIGH_END (UTF32)0xDBFF
+#define UNI_SUR_LOW_START (UTF32)0xDC00
+#define UNI_SUR_LOW_END (UTF32)0xDFFF
+
+static const int halfShift = 10; /* used for shifting by 10 bits */
+
+static const UTF32 halfBase = 0x0010000UL;
+static const UTF32 halfMask = 0x3FFUL;
+
+static unsigned char isLegalUTF8(const UTF8 *source, unsigned long length);
+static void unicode_escape(char *buf, UTF16 character);
+static void unicode_escape_to_buffer(FBuffer *buffer, char buf[6], UTF16 character);
+static void convert_UTF8_to_JSON_ASCII(FBuffer *buffer, VALUE string);
+static void convert_UTF8_to_JSON(FBuffer *buffer, VALUE string);
+static char *fstrndup(const char *ptr, unsigned long len);
+
+/* ruby api and some helpers */
+
+typedef struct JSON_Generator_StateStruct {
+ char *indent;
+ long indent_len;
+ char *space;
+ long space_len;
+ char *space_before;
+ long space_before_len;
+ char *object_nl;
+ long object_nl_len;
+ char *array_nl;
+ long array_nl_len;
+ FBuffer *array_delim;
+ FBuffer *object_delim;
+ FBuffer *object_delim2;
+ long max_nesting;
+ char allow_nan;
+ char ascii_only;
+ char quirks_mode;
+ long depth;
+ long buffer_initial_length;
+} JSON_Generator_State;
+
+#define GET_STATE_TO(self, state) \
+ TypedData_Get_Struct(self, JSON_Generator_State, &JSON_Generator_State_type, state)
+
+#define GET_STATE(self) \
+ JSON_Generator_State *state; \
+ GET_STATE_TO(self, state)
+
+#define GENERATE_JSON(type) \
+ FBuffer *buffer; \
+ VALUE Vstate; \
+ JSON_Generator_State *state; \
+ \
+ rb_scan_args(argc, argv, "01", &Vstate); \
+ Vstate = cState_from_state_s(cState, Vstate); \
+ TypedData_Get_Struct(Vstate, JSON_Generator_State, &JSON_Generator_State_type, state); \
+ buffer = cState_prepare_buffer(Vstate); \
+ generate_json_##type(buffer, Vstate, state, self); \
+ return fbuffer_to_s(buffer)
+
+static VALUE mHash_to_json(int argc, VALUE *argv, VALUE self);
+static VALUE mArray_to_json(int argc, VALUE *argv, VALUE self);
+static VALUE mFixnum_to_json(int argc, VALUE *argv, VALUE self);
+static VALUE mBignum_to_json(int argc, VALUE *argv, VALUE self);
+static VALUE mFloat_to_json(int argc, VALUE *argv, VALUE self);
+static VALUE mString_included_s(VALUE self, VALUE modul);
+static VALUE mString_to_json(int argc, VALUE *argv, VALUE self);
+static VALUE mString_to_json_raw_object(VALUE self);
+static VALUE mString_to_json_raw(int argc, VALUE *argv, VALUE self);
+static VALUE mString_Extend_json_create(VALUE self, VALUE o);
+static VALUE mTrueClass_to_json(int argc, VALUE *argv, VALUE self);
+static VALUE mFalseClass_to_json(int argc, VALUE *argv, VALUE self);
+static VALUE mNilClass_to_json(int argc, VALUE *argv, VALUE self);
+static VALUE mObject_to_json(int argc, VALUE *argv, VALUE self);
+static void State_free(void *state);
+static JSON_Generator_State *State_allocate(void);
+static VALUE cState_s_allocate(VALUE klass);
+static VALUE cState_configure(VALUE self, VALUE opts);
+static VALUE cState_to_h(VALUE self);
+static void generate_json(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj);
+static void generate_json_object(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj);
+static void generate_json_array(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj);
+static void generate_json_string(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj);
+static void generate_json_null(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj);
+static void generate_json_false(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj);
+static void generate_json_true(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj);
+static void generate_json_fixnum(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj);
+static void generate_json_bignum(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj);
+static void generate_json_float(FBuffer *buffer, VALUE Vstate, JSON_Generator_State *state, VALUE obj);
+static VALUE cState_partial_generate(VALUE self, VALUE obj);
+static VALUE cState_generate(VALUE self, VALUE obj);
+static VALUE cState_initialize(int argc, VALUE *argv, VALUE self);
+static VALUE cState_from_state_s(VALUE self, VALUE opts);
+static VALUE cState_indent(VALUE self);
+static VALUE cState_indent_set(VALUE self, VALUE indent);
+static VALUE cState_space(VALUE self);
+static VALUE cState_space_set(VALUE self, VALUE space);
+static VALUE cState_space_before(VALUE self);
+static VALUE cState_space_before_set(VALUE self, VALUE space_before);
+static VALUE cState_object_nl(VALUE self);
+static VALUE cState_object_nl_set(VALUE self, VALUE object_nl);
+static VALUE cState_array_nl(VALUE self);
+static VALUE cState_array_nl_set(VALUE self, VALUE array_nl);
+static VALUE cState_max_nesting(VALUE self);
+static VALUE cState_max_nesting_set(VALUE self, VALUE depth);
+static VALUE cState_allow_nan_p(VALUE self);
+static VALUE cState_ascii_only_p(VALUE self);
+static VALUE cState_depth(VALUE self);
+static VALUE cState_depth_set(VALUE self, VALUE depth);
+static FBuffer *cState_prepare_buffer(VALUE self);
+#ifndef ZALLOC
+#define ZALLOC(type) ((type *)ruby_zalloc(sizeof(type)))
+static inline void *ruby_zalloc(size_t n)
+{
+ void *p = ruby_xmalloc(n);
+ memset(p, 0, n);
+ return p;
+}
+#endif
+#ifdef TypedData_Wrap_Struct
+static const rb_data_type_t JSON_Generator_State_type;
+#define NEW_TYPEDDATA_WRAPPER 1
+#else
+#define TypedData_Wrap_Struct(klass, ignore, json) Data_Wrap_Struct(klass, NULL, State_free, json)
+#define TypedData_Get_Struct(self, JSON_Generator_State, ignore, json) Data_Get_Struct(self, JSON_Generator_State, json)
+#endif
+
+#endif