diff options
Diffstat (limited to 'ext/json/parser/parser.rl')
| -rw-r--r-- | ext/json/parser/parser.rl | 977 |
1 files changed, 0 insertions, 977 deletions
diff --git a/ext/json/parser/parser.rl b/ext/json/parser/parser.rl deleted file mode 100644 index f7be1a5acc..0000000000 --- a/ext/json/parser/parser.rl +++ /dev/null @@ -1,977 +0,0 @@ -#include "../fbuffer/fbuffer.h" -#include "parser.h" - -#if defined HAVE_RUBY_ENCODING_H -# define EXC_ENCODING rb_utf8_encoding(), -# ifndef HAVE_RB_ENC_RAISE -static void -enc_raise(rb_encoding *enc, VALUE exc, const char *fmt, ...) -{ - va_list args; - VALUE mesg; - - va_start(args, fmt); - mesg = rb_enc_vsprintf(enc, fmt, args); - va_end(args); - - rb_exc_raise(rb_exc_new3(exc, mesg)); -} -# define rb_enc_raise enc_raise -# endif -#else -# define EXC_ENCODING /* nothing */ -# define rb_enc_raise rb_raise -#endif - -/* unicode */ - -static const signed char digit_values[256] = { - -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, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, - -1, -1, -1, -1, -1, -1, 10, 11, 12, 13, 14, 15, -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, - 10, 11, 12, 13, 14, 15, -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, - -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, -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, -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, -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 -}; - -static UTF32 unescape_unicode(const unsigned char *p) -{ - signed char b; - UTF32 result = 0; - b = digit_values[p[0]]; - if (b < 0) return UNI_REPLACEMENT_CHAR; - result = (result << 4) | (unsigned char)b; - b = digit_values[p[1]]; - if (b < 0) return UNI_REPLACEMENT_CHAR; - result = (result << 4) | (unsigned char)b; - b = digit_values[p[2]]; - if (b < 0) return UNI_REPLACEMENT_CHAR; - result = (result << 4) | (unsigned char)b; - b = digit_values[p[3]]; - if (b < 0) return UNI_REPLACEMENT_CHAR; - result = (result << 4) | (unsigned char)b; - return result; -} - -static int convert_UTF32_to_UTF8(char *buf, UTF32 ch) -{ - int len = 1; - if (ch <= 0x7F) { - buf[0] = (char) ch; - } else if (ch <= 0x07FF) { - buf[0] = (char) ((ch >> 6) | 0xC0); - buf[1] = (char) ((ch & 0x3F) | 0x80); - len++; - } else if (ch <= 0xFFFF) { - buf[0] = (char) ((ch >> 12) | 0xE0); - buf[1] = (char) (((ch >> 6) & 0x3F) | 0x80); - buf[2] = (char) ((ch & 0x3F) | 0x80); - len += 2; - } else if (ch <= 0x1fffff) { - buf[0] =(char) ((ch >> 18) | 0xF0); - buf[1] =(char) (((ch >> 12) & 0x3F) | 0x80); - buf[2] =(char) (((ch >> 6) & 0x3F) | 0x80); - buf[3] =(char) ((ch & 0x3F) | 0x80); - len += 3; - } else { - buf[0] = '?'; - } - return len; -} - -static VALUE mJSON, mExt, cParser, eParserError, eNestingError; -static VALUE CNaN, CInfinity, CMinusInfinity; - -static ID i_json_creatable_p, i_json_create, i_create_id, i_create_additions, - i_chr, i_max_nesting, i_allow_nan, i_symbolize_names, - i_object_class, i_array_class, i_decimal_class, i_key_p, - i_deep_const_get, i_match, i_match_string, i_aset, i_aref, - i_leftshift, i_new, i_try_convert, i_freeze, i_uminus; - -%%{ - machine JSON_common; - - cr = '\n'; - cr_neg = [^\n]; - ws = [ \t\r\n]; - c_comment = '/*' ( any* - (any* '*/' any* ) ) '*/'; - cpp_comment = '//' cr_neg* cr; - comment = c_comment | cpp_comment; - ignore = ws | comment; - name_separator = ':'; - value_separator = ','; - Vnull = 'null'; - Vfalse = 'false'; - Vtrue = 'true'; - VNaN = 'NaN'; - VInfinity = 'Infinity'; - VMinusInfinity = '-Infinity'; - begin_value = [nft\"\-\[\{NI] | digit; - begin_object = '{'; - end_object = '}'; - begin_array = '['; - end_array = ']'; - begin_string = '"'; - begin_name = begin_string; - begin_number = digit | '-'; -}%% - -%%{ - machine JSON_object; - include JSON_common; - - write data; - - action parse_value { - VALUE v = Qnil; - char *np = JSON_parse_value(json, fpc, pe, &v, current_nesting); - if (np == NULL) { - fhold; fbreak; - } else { - if (NIL_P(json->object_class)) { - OBJ_FREEZE(last_name); - rb_hash_aset(*result, last_name, v); - } else { - rb_funcall(*result, i_aset, 2, last_name, v); - } - fexec np; - } - } - - action parse_name { - char *np; - json->parsing_name = 1; - np = JSON_parse_string(json, fpc, pe, &last_name); - json->parsing_name = 0; - if (np == NULL) { fhold; fbreak; } else fexec np; - } - - action exit { fhold; fbreak; } - - pair = ignore* begin_name >parse_name ignore* name_separator ignore* begin_value >parse_value; - next_pair = ignore* value_separator pair; - - main := ( - begin_object - (pair (next_pair)*)? ignore* - end_object - ) @exit; -}%% - -static char *JSON_parse_object(JSON_Parser *json, char *p, char *pe, VALUE *result, int current_nesting) -{ - int cs = EVIL; - VALUE last_name = Qnil; - VALUE object_class = json->object_class; - - if (json->max_nesting && current_nesting > json->max_nesting) { - rb_raise(eNestingError, "nesting of %d is too deep", current_nesting); - } - - *result = NIL_P(object_class) ? rb_hash_new() : rb_class_new_instance(0, 0, object_class); - - %% write init; - %% write exec; - - if (cs >= JSON_object_first_final) { - if (json->create_additions) { - VALUE klassname; - if (NIL_P(json->object_class)) { - klassname = rb_hash_aref(*result, json->create_id); - } else { - klassname = rb_funcall(*result, i_aref, 1, json->create_id); - } - if (!NIL_P(klassname)) { - VALUE klass = rb_funcall(mJSON, i_deep_const_get, 1, klassname); - if (RTEST(rb_funcall(klass, i_json_creatable_p, 0))) { - *result = rb_funcall(klass, i_json_create, 1, *result); - } - } - } - return p + 1; - } else { - return NULL; - } -} - - -%%{ - machine JSON_value; - include JSON_common; - - write data; - - action parse_null { - *result = Qnil; - } - action parse_false { - *result = Qfalse; - } - action parse_true { - *result = Qtrue; - } - action parse_nan { - if (json->allow_nan) { - *result = CNaN; - } else { - rb_enc_raise(EXC_ENCODING eParserError, "%u: unexpected token at '%s'", __LINE__, p - 2); - } - } - action parse_infinity { - if (json->allow_nan) { - *result = CInfinity; - } else { - rb_enc_raise(EXC_ENCODING eParserError, "%u: unexpected token at '%s'", __LINE__, p - 8); - } - } - action parse_string { - char *np = JSON_parse_string(json, fpc, pe, result); - if (np == NULL) { fhold; fbreak; } else fexec np; - } - - action parse_number { - char *np; - if(pe > fpc + 8 && !strncmp(MinusInfinity, fpc, 9)) { - if (json->allow_nan) { - *result = CMinusInfinity; - fexec p + 10; - fhold; fbreak; - } else { - rb_enc_raise(EXC_ENCODING eParserError, "%u: unexpected token at '%s'", __LINE__, p); - } - } - np = JSON_parse_float(json, fpc, pe, result); - if (np != NULL) fexec np; - np = JSON_parse_integer(json, fpc, pe, result); - if (np != NULL) fexec np; - fhold; fbreak; - } - - action parse_array { - char *np; - np = JSON_parse_array(json, fpc, pe, result, current_nesting + 1); - if (np == NULL) { fhold; fbreak; } else fexec np; - } - - action parse_object { - char *np; - np = JSON_parse_object(json, fpc, pe, result, current_nesting + 1); - if (np == NULL) { fhold; fbreak; } else fexec np; - } - - action exit { fhold; fbreak; } - -main := ignore* ( - Vnull @parse_null | - Vfalse @parse_false | - Vtrue @parse_true | - VNaN @parse_nan | - VInfinity @parse_infinity | - begin_number >parse_number | - begin_string >parse_string | - begin_array >parse_array | - begin_object >parse_object - ) ignore* %*exit; -}%% - -static char *JSON_parse_value(JSON_Parser *json, char *p, char *pe, VALUE *result, int current_nesting) -{ - int cs = EVIL; - - %% write init; - %% write exec; - - if (json->freeze) { - OBJ_FREEZE(*result); - } - - if (cs >= JSON_value_first_final) { - return p; - } else { - return NULL; - } -} - -%%{ - machine JSON_integer; - - write data; - - action exit { fhold; fbreak; } - - main := '-'? ('0' | [1-9][0-9]*) (^[0-9]? @exit); -}%% - -static char *JSON_parse_integer(JSON_Parser *json, char *p, char *pe, VALUE *result) -{ - int cs = EVIL; - - %% write init; - json->memo = p; - %% write exec; - - if (cs >= JSON_integer_first_final) { - long len = p - json->memo; - fbuffer_clear(json->fbuffer); - fbuffer_append(json->fbuffer, json->memo, len); - fbuffer_append_char(json->fbuffer, '\0'); - *result = rb_cstr2inum(FBUFFER_PTR(json->fbuffer), 10); - return p + 1; - } else { - return NULL; - } -} - -%%{ - machine JSON_float; - include JSON_common; - - write data; - - action exit { fhold; fbreak; } - - main := '-'? ( - (('0' | [1-9][0-9]*) '.' [0-9]+ ([Ee] [+\-]?[0-9]+)?) - | (('0' | [1-9][0-9]*) ([Ee] [+\-]?[0-9]+)) - ) (^[0-9Ee.\-]? @exit ); -}%% - -static char *JSON_parse_float(JSON_Parser *json, char *p, char *pe, VALUE *result) -{ - int cs = EVIL; - - %% write init; - json->memo = p; - %% write exec; - - if (cs >= JSON_float_first_final) { - VALUE mod = Qnil; - ID method_id = 0; - if (rb_respond_to(json->decimal_class, i_try_convert)) { - mod = json->decimal_class; - method_id = i_try_convert; - } else if (rb_respond_to(json->decimal_class, i_new)) { - mod = json->decimal_class; - method_id = i_new; - } else if (RB_TYPE_P(json->decimal_class, T_CLASS)) { - VALUE name = rb_class_name(json->decimal_class); - const char *name_cstr = RSTRING_PTR(name); - const char *last_colon = strrchr(name_cstr, ':'); - if (last_colon) { - const char *mod_path_end = last_colon - 1; - VALUE mod_path = rb_str_substr(name, 0, mod_path_end - name_cstr); - mod = rb_path_to_class(mod_path); - - const char *method_name_beg = last_colon + 1; - long before_len = method_name_beg - name_cstr; - long len = RSTRING_LEN(name) - before_len; - VALUE method_name = rb_str_substr(name, before_len, len); - method_id = SYM2ID(rb_str_intern(method_name)); - } else { - mod = rb_mKernel; - method_id = SYM2ID(rb_str_intern(name)); - } - } - - long len = p - json->memo; - fbuffer_clear(json->fbuffer); - fbuffer_append(json->fbuffer, json->memo, len); - fbuffer_append_char(json->fbuffer, '\0'); - - if (method_id) { - VALUE text = rb_str_new2(FBUFFER_PTR(json->fbuffer)); - *result = rb_funcallv(mod, method_id, 1, &text); - } else { - *result = DBL2NUM(rb_cstr_to_dbl(FBUFFER_PTR(json->fbuffer), 1)); - } - - return p + 1; - } else { - return NULL; - } -} - - -%%{ - machine JSON_array; - include JSON_common; - - write data; - - action parse_value { - VALUE v = Qnil; - char *np = JSON_parse_value(json, fpc, pe, &v, current_nesting); - if (np == NULL) { - fhold; fbreak; - } else { - if (NIL_P(json->array_class)) { - rb_ary_push(*result, v); - } else { - rb_funcall(*result, i_leftshift, 1, v); - } - fexec np; - } - } - - action exit { fhold; fbreak; } - - next_element = value_separator ignore* begin_value >parse_value; - - main := begin_array ignore* - ((begin_value >parse_value ignore*) - (ignore* next_element ignore*)*)? - end_array @exit; -}%% - -static char *JSON_parse_array(JSON_Parser *json, char *p, char *pe, VALUE *result, int current_nesting) -{ - int cs = EVIL; - VALUE array_class = json->array_class; - - if (json->max_nesting && current_nesting > json->max_nesting) { - rb_raise(eNestingError, "nesting of %d is too deep", current_nesting); - } - *result = NIL_P(array_class) ? rb_ary_new() : rb_class_new_instance(0, 0, array_class); - - %% write init; - %% write exec; - - if(cs >= JSON_array_first_final) { - return p + 1; - } else { - rb_enc_raise(EXC_ENCODING eParserError, "%u: unexpected token at '%s'", __LINE__, p); - return NULL; - } -} - -static const size_t MAX_STACK_BUFFER_SIZE = 128; -static VALUE json_string_unescape(char *string, char *stringEnd, int intern, int symbolize) -{ - VALUE result = Qnil; - size_t bufferSize = stringEnd - string; - char *p = string, *pe = string, *unescape, *bufferStart, *buffer; - int unescape_len; - char buf[4]; - - if (bufferSize > MAX_STACK_BUFFER_SIZE) { - bufferStart = buffer = ALLOC_N(char, bufferSize); - } else { - bufferStart = buffer = ALLOCA_N(char, bufferSize); - } - - while (pe < stringEnd) { - if (*pe == '\\') { - unescape = (char *) "?"; - unescape_len = 1; - if (pe > p) { - MEMCPY(buffer, p, char, pe - p); - buffer += pe - p; - } - switch (*++pe) { - case 'n': - unescape = (char *) "\n"; - break; - case 'r': - unescape = (char *) "\r"; - break; - case 't': - unescape = (char *) "\t"; - break; - case '"': - unescape = (char *) "\""; - break; - case '\\': - unescape = (char *) "\\"; - break; - case 'b': - unescape = (char *) "\b"; - break; - case 'f': - unescape = (char *) "\f"; - break; - case 'u': - if (pe > stringEnd - 4) { - if (bufferSize > MAX_STACK_BUFFER_SIZE) { - free(bufferStart); - } - rb_enc_raise( - EXC_ENCODING eParserError, - "%u: incomplete unicode character escape sequence at '%s'", __LINE__, p - ); - } else { - UTF32 ch = unescape_unicode((unsigned char *) ++pe); - pe += 3; - if (UNI_SUR_HIGH_START == (ch & 0xFC00)) { - pe++; - if (pe > stringEnd - 6) { - if (bufferSize > MAX_STACK_BUFFER_SIZE) { - free(bufferStart); - } - rb_enc_raise( - EXC_ENCODING eParserError, - "%u: incomplete surrogate pair at '%s'", __LINE__, p - ); - } - if (pe[0] == '\\' && pe[1] == 'u') { - UTF32 sur = unescape_unicode((unsigned char *) pe + 2); - ch = (((ch & 0x3F) << 10) | ((((ch >> 6) & 0xF) + 1) << 16) - | (sur & 0x3FF)); - pe += 5; - } else { - unescape = (char *) "?"; - break; - } - } - unescape_len = convert_UTF32_to_UTF8(buf, ch); - unescape = buf; - } - break; - default: - p = pe; - continue; - } - MEMCPY(buffer, unescape, char, unescape_len); - buffer += unescape_len; - p = ++pe; - } else { - pe++; - } - } - - if (pe > p) { - MEMCPY(buffer, p, char, pe - p); - buffer += pe - p; - } - -# ifdef HAVE_RB_ENC_INTERNED_STR - if (intern) { - result = rb_enc_interned_str(bufferStart, (long)(buffer - bufferStart), rb_utf8_encoding()); - } else { - result = rb_utf8_str_new(bufferStart, (long)(buffer - bufferStart)); - } - if (bufferSize > MAX_STACK_BUFFER_SIZE) { - free(bufferStart); - } -# else - result = rb_utf8_str_new(bufferStart, (long)(buffer - bufferStart)); - - if (bufferSize > MAX_STACK_BUFFER_SIZE) { - free(bufferStart); - } - - if (intern) { - # if STR_UMINUS_DEDUPE_FROZEN - // Starting from MRI 2.8 it is preferable to freeze the string - // before deduplication so that it can be interned directly - // otherwise it would be duplicated first which is wasteful. - result = rb_funcall(rb_str_freeze(result), i_uminus, 0); - # elif STR_UMINUS_DEDUPE - // MRI 2.5 and older do not deduplicate strings that are already - // frozen. - result = rb_funcall(result, i_uminus, 0); - # else - result = rb_str_freeze(result); - # endif - } -# endif - - if (symbolize) { - result = rb_str_intern(result); - } - - return result; -} - -%%{ - machine JSON_string; - include JSON_common; - - write data; - - action parse_string { - *result = json_string_unescape(json->memo + 1, p, json->parsing_name || json-> freeze, json->parsing_name && json->symbolize_names); - if (NIL_P(*result)) { - fhold; - fbreak; - } else { - fexec p + 1; - } - } - - action exit { fhold; fbreak; } - - main := '"' ((^([\"\\] | 0..0x1f) | '\\'[\"\\/bfnrt] | '\\u'[0-9a-fA-F]{4} | '\\'^([\"\\/bfnrtu]|0..0x1f))* %parse_string) '"' @exit; -}%% - -static int -match_i(VALUE regexp, VALUE klass, VALUE memo) -{ - if (regexp == Qundef) return ST_STOP; - if (RTEST(rb_funcall(klass, i_json_creatable_p, 0)) && - RTEST(rb_funcall(regexp, i_match, 1, rb_ary_entry(memo, 0)))) { - rb_ary_push(memo, klass); - return ST_STOP; - } - return ST_CONTINUE; -} - -static char *JSON_parse_string(JSON_Parser *json, char *p, char *pe, VALUE *result) -{ - int cs = EVIL; - VALUE match_string; - - %% write init; - json->memo = p; - %% write exec; - - if (json->create_additions && RTEST(match_string = json->match_string)) { - VALUE klass; - VALUE memo = rb_ary_new2(2); - rb_ary_push(memo, *result); - rb_hash_foreach(match_string, match_i, memo); - klass = rb_ary_entry(memo, 1); - if (RTEST(klass)) { - *result = rb_funcall(klass, i_json_create, 1, *result); - } - } - - if (cs >= JSON_string_first_final) { - return p + 1; - } else { - return NULL; - } -} - -/* - * Document-class: JSON::Ext::Parser - * - * This is the JSON parser implemented as a C extension. It can be configured - * to be used by setting - * - * JSON.parser = JSON::Ext::Parser - * - * with the method parser= in JSON. - * - */ - -static VALUE convert_encoding(VALUE source) -{ -#ifdef HAVE_RUBY_ENCODING_H - rb_encoding *enc = rb_enc_get(source); - if (enc == rb_ascii8bit_encoding()) { - if (OBJ_FROZEN(source)) { - source = rb_str_dup(source); - } - FORCE_UTF8(source); - } else { - source = rb_str_conv_enc(source, rb_enc_get(source), rb_utf8_encoding()); - } -#endif - return source; -} - -/* - * call-seq: new(source, opts => {}) - * - * Creates a new JSON::Ext::Parser instance for the string _source_. - * - * Creates a new JSON::Ext::Parser instance for the string _source_. - * - * It will be configured by the _opts_ hash. _opts_ can have the following - * keys: - * - * _opts_ can have the following keys: - * * *max_nesting*: The maximum depth of nesting allowed in the parsed data - * structures. Disable depth checking with :max_nesting => false|nil|0, it - * defaults to 100. - * * *allow_nan*: If set to true, allow NaN, Infinity and -Infinity in - * defiance of RFC 4627 to be parsed by the Parser. This option defaults to - * false. - * * *symbolize_names*: If set to true, returns symbols for the names - * (keys) in a JSON object. Otherwise strings are returned, which is - * also the default. It's not possible to use this option in - * conjunction with the *create_additions* option. - * * *create_additions*: If set to false, the Parser doesn't create - * additions even if a matching class and create_id was found. This option - * defaults to false. - * * *object_class*: Defaults to Hash - * * *array_class*: Defaults to Array - */ -static VALUE cParser_initialize(int argc, VALUE *argv, VALUE self) -{ - VALUE source, opts; - GET_PARSER_INIT; - - if (json->Vsource) { - rb_raise(rb_eTypeError, "already initialized instance"); - } -#ifdef HAVE_RB_SCAN_ARGS_OPTIONAL_HASH - rb_scan_args(argc, argv, "1:", &source, &opts); -#else - rb_scan_args(argc, argv, "11", &source, &opts); -#endif - if (!NIL_P(opts)) { -#ifndef HAVE_RB_SCAN_ARGS_OPTIONAL_HASH - opts = rb_convert_type(opts, T_HASH, "Hash", "to_hash"); - if (NIL_P(opts)) { - rb_raise(rb_eArgError, "opts needs to be like a hash"); - } else { -#endif - VALUE tmp = ID2SYM(i_max_nesting); - if (option_given_p(opts, tmp)) { - VALUE max_nesting = rb_hash_aref(opts, tmp); - if (RTEST(max_nesting)) { - Check_Type(max_nesting, T_FIXNUM); - json->max_nesting = FIX2INT(max_nesting); - } else { - json->max_nesting = 0; - } - } else { - json->max_nesting = 100; - } - tmp = ID2SYM(i_allow_nan); - if (option_given_p(opts, tmp)) { - json->allow_nan = RTEST(rb_hash_aref(opts, tmp)) ? 1 : 0; - } else { - json->allow_nan = 0; - } - tmp = ID2SYM(i_symbolize_names); - if (option_given_p(opts, tmp)) { - json->symbolize_names = RTEST(rb_hash_aref(opts, tmp)) ? 1 : 0; - } else { - json->symbolize_names = 0; - } - tmp = ID2SYM(i_freeze); - if (option_given_p(opts, tmp)) { - json->freeze = RTEST(rb_hash_aref(opts, tmp)) ? 1 : 0; - } else { - json->freeze = 0; - } - tmp = ID2SYM(i_create_additions); - if (option_given_p(opts, tmp)) { - json->create_additions = RTEST(rb_hash_aref(opts, tmp)); - } else { - json->create_additions = 0; - } - if (json->symbolize_names && json->create_additions) { - rb_raise(rb_eArgError, - "options :symbolize_names and :create_additions cannot be " - " used in conjunction"); - } - tmp = ID2SYM(i_create_id); - if (option_given_p(opts, tmp)) { - json->create_id = rb_hash_aref(opts, tmp); - } else { - json->create_id = rb_funcall(mJSON, i_create_id, 0); - } - tmp = ID2SYM(i_object_class); - if (option_given_p(opts, tmp)) { - json->object_class = rb_hash_aref(opts, tmp); - } else { - json->object_class = Qnil; - } - tmp = ID2SYM(i_array_class); - if (option_given_p(opts, tmp)) { - json->array_class = rb_hash_aref(opts, tmp); - } else { - json->array_class = Qnil; - } - tmp = ID2SYM(i_decimal_class); - if (option_given_p(opts, tmp)) { - json->decimal_class = rb_hash_aref(opts, tmp); - } else { - json->decimal_class = Qnil; - } - tmp = ID2SYM(i_match_string); - if (option_given_p(opts, tmp)) { - VALUE match_string = rb_hash_aref(opts, tmp); - json->match_string = RTEST(match_string) ? match_string : Qnil; - } else { - json->match_string = Qnil; - } -#ifndef HAVE_RB_SCAN_ARGS_OPTIONAL_HASH - } -#endif - } else { - json->max_nesting = 100; - json->allow_nan = 0; - json->create_additions = 0; - json->create_id = rb_funcall(mJSON, i_create_id, 0); - json->object_class = Qnil; - json->array_class = Qnil; - json->decimal_class = Qnil; - } - source = convert_encoding(StringValue(source)); - StringValue(source); - json->len = RSTRING_LEN(source); - json->source = RSTRING_PTR(source);; - json->Vsource = source; - return self; -} - -%%{ - machine JSON; - - write data; - - include JSON_common; - - action parse_value { - char *np = JSON_parse_value(json, fpc, pe, &result, 0); - if (np == NULL) { fhold; fbreak; } else fexec np; - } - - main := ignore* ( - begin_value >parse_value - ) ignore*; -}%% - -/* - * call-seq: parse() - * - * Parses the current JSON text _source_ and returns the complete data - * structure as a result. - */ -static VALUE cParser_parse(VALUE self) -{ - char *p, *pe; - int cs = EVIL; - VALUE result = Qnil; - GET_PARSER; - - %% write init; - p = json->source; - pe = p + json->len; - %% write exec; - - if (cs >= JSON_first_final && p == pe) { - return result; - } else { - rb_enc_raise(EXC_ENCODING eParserError, "%u: unexpected token at '%s'", __LINE__, p); - return Qnil; - } -} - -static void JSON_mark(void *ptr) -{ - JSON_Parser *json = ptr; - rb_gc_mark_maybe(json->Vsource); - rb_gc_mark_maybe(json->create_id); - rb_gc_mark_maybe(json->object_class); - rb_gc_mark_maybe(json->array_class); - rb_gc_mark_maybe(json->decimal_class); - rb_gc_mark_maybe(json->match_string); -} - -static void JSON_free(void *ptr) -{ - JSON_Parser *json = ptr; - fbuffer_free(json->fbuffer); - ruby_xfree(json); -} - -static size_t JSON_memsize(const void *ptr) -{ - const JSON_Parser *json = ptr; - return sizeof(*json) + FBUFFER_CAPA(json->fbuffer); -} - -#ifdef NEW_TYPEDDATA_WRAPPER -static const rb_data_type_t JSON_Parser_type = { - "JSON/Parser", - {JSON_mark, JSON_free, JSON_memsize,}, -#ifdef RUBY_TYPED_FREE_IMMEDIATELY - 0, 0, - RUBY_TYPED_FREE_IMMEDIATELY, -#endif -}; -#endif - -static VALUE cJSON_parser_s_allocate(VALUE klass) -{ - JSON_Parser *json; - VALUE obj = TypedData_Make_Struct(klass, JSON_Parser, &JSON_Parser_type, json); - json->fbuffer = fbuffer_alloc(0); - return obj; -} - -/* - * call-seq: source() - * - * Returns a copy of the current _source_ string, that was used to construct - * this Parser. - */ -static VALUE cParser_source(VALUE self) -{ - GET_PARSER; - return rb_str_dup(json->Vsource); -} - -void Init_parser(void) -{ -#ifdef HAVE_RB_EXT_RACTOR_SAFE - rb_ext_ractor_safe(true); -#endif - -#undef rb_intern - rb_require("json/common"); - mJSON = rb_define_module("JSON"); - mExt = rb_define_module_under(mJSON, "Ext"); - cParser = rb_define_class_under(mExt, "Parser", rb_cObject); - eParserError = rb_path2class("JSON::ParserError"); - eNestingError = rb_path2class("JSON::NestingError"); - rb_gc_register_mark_object(eParserError); - rb_gc_register_mark_object(eNestingError); - rb_define_alloc_func(cParser, cJSON_parser_s_allocate); - rb_define_method(cParser, "initialize", cParser_initialize, -1); - rb_define_method(cParser, "parse", cParser_parse, 0); - rb_define_method(cParser, "source", cParser_source, 0); - - CNaN = rb_const_get(mJSON, rb_intern("NaN")); - rb_gc_register_mark_object(CNaN); - - CInfinity = rb_const_get(mJSON, rb_intern("Infinity")); - rb_gc_register_mark_object(CInfinity); - - CMinusInfinity = rb_const_get(mJSON, rb_intern("MinusInfinity")); - rb_gc_register_mark_object(CMinusInfinity); - - i_json_creatable_p = rb_intern("json_creatable?"); - i_json_create = rb_intern("json_create"); - i_create_id = rb_intern("create_id"); - i_create_additions = rb_intern("create_additions"); - i_chr = rb_intern("chr"); - i_max_nesting = rb_intern("max_nesting"); - i_allow_nan = rb_intern("allow_nan"); - i_symbolize_names = rb_intern("symbolize_names"); - i_object_class = rb_intern("object_class"); - i_array_class = rb_intern("array_class"); - i_decimal_class = rb_intern("decimal_class"); - i_match = rb_intern("match"); - i_match_string = rb_intern("match_string"); - i_key_p = rb_intern("key?"); - i_deep_const_get = rb_intern("deep_const_get"); - i_aset = rb_intern("[]="); - i_aref = rb_intern("[]"); - i_leftshift = rb_intern("<<"); - i_new = rb_intern("new"); - i_try_convert = rb_intern("try_convert"); - i_freeze = rb_intern("freeze"); - i_uminus = rb_intern("-@"); -} - -/* - * Local variables: - * mode: c - * c-file-style: ruby - * indent-tabs-mode: nil - * End: - */ |