diff options
Diffstat (limited to 'ext/psych/parser.c')
| -rw-r--r-- | ext/psych/parser.c | 326 |
1 files changed, 0 insertions, 326 deletions
diff --git a/ext/psych/parser.c b/ext/psych/parser.c deleted file mode 100644 index 0fa02b981f..0000000000 --- a/ext/psych/parser.c +++ /dev/null @@ -1,326 +0,0 @@ -#include <psych.h> - -VALUE cPsychParser; -VALUE ePsychSyntaxError; - -static ID id_read; -static ID id_empty; -static ID id_start_stream; -static ID id_end_stream; -static ID id_start_document; -static ID id_end_document; -static ID id_alias; -static ID id_scalar; -static ID id_start_sequence; -static ID id_end_sequence; -static ID id_start_mapping; -static ID id_end_mapping; - -#define PSYCH_TRANSCODE(_str, _yaml_enc, _internal_enc) \ - do { \ - rb_enc_associate_index(_str, _yaml_enc); \ - if(_internal_enc) \ - _str = rb_str_export_to_enc(_str, _internal_enc); \ - } while (0) - -static int io_reader(void * data, unsigned char *buf, size_t size, size_t *read) -{ - VALUE io = (VALUE)data; - VALUE string = rb_funcall(io, id_read, 1, INT2NUM(size)); - - *read = 0; - - if(! NIL_P(string)) { - void * str = (void *)StringValuePtr(string); - *read = (size_t)RSTRING_LEN(string); - memcpy(buf, str, *read); - } - - return 1; -} - -/* - * call-seq: - * parser.parse(yaml) - * - * Parse the YAML document contained in +yaml+. Events will be called on - * the handler set on the parser instance. - * - * See Psych::Parser and Psych::Parser#handler - */ -static VALUE parse(VALUE self, VALUE yaml) -{ - yaml_parser_t parser; - yaml_event_t event; - int done = 0; -#ifdef HAVE_RUBY_ENCODING_H - int encoding = rb_enc_find_index("ASCII-8BIT"); - rb_encoding * internal_enc; -#endif - VALUE handler = rb_iv_get(self, "@handler"); - - - yaml_parser_initialize(&parser); - - if(rb_respond_to(yaml, id_read)) { - yaml_parser_set_input(&parser, io_reader, (void *)yaml); - } else { - StringValue(yaml); - yaml_parser_set_input_string( - &parser, - (const unsigned char *)RSTRING_PTR(yaml), - (size_t)RSTRING_LEN(yaml) - ); - } - - while(!done) { - if(!yaml_parser_parse(&parser, &event)) { - size_t line = parser.mark.line; - size_t column = parser.mark.column; - - yaml_parser_delete(&parser); - rb_raise(ePsychSyntaxError, "couldn't parse YAML at line %d column %d", - (int)line, (int)column); - } - - switch(event.type) { - case YAML_STREAM_START_EVENT: - -#ifdef HAVE_RUBY_ENCODING_H - switch(event.data.stream_start.encoding) { - case YAML_ANY_ENCODING: - break; - case YAML_UTF8_ENCODING: - encoding = rb_enc_find_index("UTF-8"); - break; - case YAML_UTF16LE_ENCODING: - encoding = rb_enc_find_index("UTF-16LE"); - break; - case YAML_UTF16BE_ENCODING: - encoding = rb_enc_find_index("UTF-16BE"); - break; - default: - break; - } - internal_enc = rb_default_internal_encoding(); -#endif - - rb_funcall(handler, id_start_stream, 1, - INT2NUM((long)event.data.stream_start.encoding) - ); - break; - case YAML_DOCUMENT_START_EVENT: - { - /* Get a list of tag directives (if any) */ - VALUE tag_directives = rb_ary_new(); - /* Grab the document version */ - VALUE version = event.data.document_start.version_directive ? - rb_ary_new3( - (long)2, - INT2NUM((long)event.data.document_start.version_directive->major), - INT2NUM((long)event.data.document_start.version_directive->minor) - ) : rb_ary_new(); - - if(event.data.document_start.tag_directives.start) { - yaml_tag_directive_t *start = - event.data.document_start.tag_directives.start; - yaml_tag_directive_t *end = - event.data.document_start.tag_directives.end; - for(; start != end; start++) { - VALUE handle = Qnil; - VALUE prefix = Qnil; - if(start->handle) { - handle = rb_str_new2((const char *)start->handle); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(handle, encoding, internal_enc); -#endif - } - - if(start->prefix) { - prefix = rb_str_new2((const char *)start->prefix); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(prefix, encoding, internal_enc); -#endif - } - - rb_ary_push(tag_directives, rb_ary_new3((long)2, handle, prefix)); - } - } - rb_funcall(handler, id_start_document, 3, - version, tag_directives, - event.data.document_start.implicit == 1 ? Qtrue : Qfalse - ); - } - break; - case YAML_DOCUMENT_END_EVENT: - rb_funcall(handler, id_end_document, 1, - event.data.document_end.implicit == 1 ? Qtrue : Qfalse - ); - break; - case YAML_ALIAS_EVENT: - { - VALUE alias = Qnil; - if(event.data.alias.anchor) { - alias = rb_str_new2((const char *)event.data.alias.anchor); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(alias, encoding, internal_enc); -#endif - } - - rb_funcall(handler, id_alias, 1, alias); - } - break; - case YAML_SCALAR_EVENT: - { - VALUE anchor = Qnil; - VALUE tag = Qnil; - VALUE plain_implicit, quoted_implicit, style; - VALUE val = rb_str_new( - (const char *)event.data.scalar.value, - (long)event.data.scalar.length - ); - -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(val, encoding, internal_enc); -#endif - - if(event.data.scalar.anchor) { - anchor = rb_str_new2((const char *)event.data.scalar.anchor); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(anchor, encoding, internal_enc); -#endif - } - - if(event.data.scalar.tag) { - tag = rb_str_new2((const char *)event.data.scalar.tag); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(tag, encoding, internal_enc); -#endif - } - - plain_implicit = - event.data.scalar.plain_implicit == 0 ? Qfalse : Qtrue; - - quoted_implicit = - event.data.scalar.quoted_implicit == 0 ? Qfalse : Qtrue; - - style = INT2NUM((long)event.data.scalar.style); - - rb_funcall(handler, id_scalar, 6, - val, anchor, tag, plain_implicit, quoted_implicit, style); - } - break; - case YAML_SEQUENCE_START_EVENT: - { - VALUE anchor = Qnil; - VALUE tag = Qnil; - VALUE implicit, style; - if(event.data.sequence_start.anchor) { - anchor = rb_str_new2((const char *)event.data.sequence_start.anchor); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(anchor, encoding, internal_enc); -#endif - } - - tag = Qnil; - if(event.data.sequence_start.tag) { - tag = rb_str_new2((const char *)event.data.sequence_start.tag); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(tag, encoding, internal_enc); -#endif - } - - implicit = - event.data.sequence_start.implicit == 0 ? Qfalse : Qtrue; - - style = INT2NUM((long)event.data.sequence_start.style); - - rb_funcall(handler, id_start_sequence, 4, - anchor, tag, implicit, style); - } - break; - case YAML_SEQUENCE_END_EVENT: - rb_funcall(handler, id_end_sequence, 0); - break; - case YAML_MAPPING_START_EVENT: - { - VALUE anchor = Qnil; - VALUE tag = Qnil; - VALUE implicit, style; - if(event.data.mapping_start.anchor) { - anchor = rb_str_new2((const char *)event.data.mapping_start.anchor); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(anchor, encoding, internal_enc); -#endif - } - - if(event.data.mapping_start.tag) { - tag = rb_str_new2((const char *)event.data.mapping_start.tag); -#ifdef HAVE_RUBY_ENCODING_H - PSYCH_TRANSCODE(tag, encoding, internal_enc); -#endif - } - - implicit = - event.data.mapping_start.implicit == 0 ? Qfalse : Qtrue; - - style = INT2NUM((long)event.data.mapping_start.style); - - rb_funcall(handler, id_start_mapping, 4, - anchor, tag, implicit, style); - } - break; - case YAML_MAPPING_END_EVENT: - rb_funcall(handler, id_end_mapping, 0); - break; - case YAML_NO_EVENT: - rb_funcall(handler, id_empty, 0); - break; - case YAML_STREAM_END_EVENT: - rb_funcall(handler, id_end_stream, 0); - done = 1; - break; - } - } - - return self; -} - -void Init_psych_parser() -{ -#if 0 - mPsych = rb_define_module("Psych"); -#endif - - cPsychParser = rb_define_class_under(mPsych, "Parser", rb_cObject); - - /* Any encoding: Let the parser choose the encoding */ - rb_define_const(cPsychParser, "ANY", INT2NUM(YAML_ANY_ENCODING)); - - /* UTF-8 Encoding */ - rb_define_const(cPsychParser, "UTF8", INT2NUM(YAML_UTF8_ENCODING)); - - /* UTF-16-LE Encoding with BOM */ - rb_define_const(cPsychParser, "UTF16LE", INT2NUM(YAML_UTF16LE_ENCODING)); - - /* UTF-16-BE Encoding with BOM */ - rb_define_const(cPsychParser, "UTF16BE", INT2NUM(YAML_UTF16BE_ENCODING)); - - ePsychSyntaxError = rb_define_class_under(mPsych, "SyntaxError", rb_eSyntaxError); - - rb_define_method(cPsychParser, "parse", parse, 1); - - id_read = rb_intern("read"); - id_empty = rb_intern("empty"); - id_start_stream = rb_intern("start_stream"); - id_end_stream = rb_intern("end_stream"); - id_start_document = rb_intern("start_document"); - id_end_document = rb_intern("end_document"); - id_alias = rb_intern("alias"); - id_scalar = rb_intern("scalar"); - id_start_sequence = rb_intern("start_sequence"); - id_end_sequence = rb_intern("end_sequence"); - id_start_mapping = rb_intern("start_mapping"); - id_end_mapping = rb_intern("end_mapping"); -} -/* vim: set noet sws=4 sw=4: */ |