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-rw-r--r--ChangeLog6
-rw-r--r--ext/psych/emitter.c413
-rw-r--r--ext/psych/emitter.h8
-rw-r--r--ext/psych/extconf.rb22
-rw-r--r--ext/psych/parser.c314
-rw-r--r--ext/psych/parser.h6
-rw-r--r--ext/psych/psych.c35
-rw-r--r--ext/psych/psych.h20
-rw-r--r--ext/psych/to_ruby.c41
-rw-r--r--ext/psych/to_ruby.h8
-rw-r--r--ext/psych/yaml_tree.c24
-rw-r--r--ext/psych/yaml_tree.h8
-rw-r--r--lib/psych.rb236
-rw-r--r--lib/psych/coder.rb68
-rw-r--r--lib/psych/core_ext.rb22
-rw-r--r--lib/psych/emitter.rb4
-rw-r--r--lib/psych/handler.rb215
-rw-r--r--lib/psych/nodes.rb77
-rw-r--r--lib/psych/nodes/alias.rb18
-rw-r--r--lib/psych/nodes/document.rb60
-rw-r--r--lib/psych/nodes/mapping.rb56
-rw-r--r--lib/psych/nodes/node.rb40
-rw-r--r--lib/psych/nodes/scalar.rb67
-rw-r--r--lib/psych/nodes/sequence.rb81
-rw-r--r--lib/psych/nodes/stream.rb37
-rw-r--r--lib/psych/omap.rb4
-rw-r--r--lib/psych/parser.rb44
-rw-r--r--lib/psych/scalar_scanner.rb90
-rw-r--r--lib/psych/set.rb4
-rw-r--r--lib/psych/tree_builder.rb89
-rw-r--r--lib/psych/visitors.rb5
-rw-r--r--lib/psych/visitors/emitter.rb41
-rw-r--r--lib/psych/visitors/json_tree.rb37
-rw-r--r--lib/psych/visitors/to_ruby.rb252
-rw-r--r--lib/psych/visitors/visitor.rb18
-rw-r--r--lib/psych/visitors/yaml_tree.rb312
-rw-r--r--test/psych/helper.rb63
-rw-r--r--test/psych/test_alias_and_anchor.rb26
-rw-r--r--test/psych/test_array.rb19
-rw-r--r--test/psych/test_boolean.rb36
-rw-r--r--test/psych/test_class.rb17
-rw-r--r--test/psych/test_coder.rb144
-rw-r--r--test/psych/test_document.rb46
-rw-r--r--test/psych/test_emitter.rb87
-rw-r--r--test/psych/test_encoding.rb91
-rw-r--r--test/psych/test_exception.rb39
-rw-r--r--test/psych/test_hash.rb30
-rw-r--r--test/psych/test_json_tree.rb43
-rw-r--r--test/psych/test_null.rb19
-rw-r--r--test/psych/test_object.rb27
-rw-r--r--test/psych/test_omap.rb68
-rw-r--r--test/psych/test_parser.rb188
-rw-r--r--test/psych/test_psych.rb69
-rw-r--r--test/psych/test_scalar.rb11
-rw-r--r--test/psych/test_scalar_scanner.rb70
-rw-r--r--test/psych/test_serialize_subclasses.rb38
-rw-r--r--test/psych/test_set.rb49
-rw-r--r--test/psych/test_string.rb49
-rw-r--r--test/psych/test_struct.rb51
-rw-r--r--test/psych/test_symbol.rb17
-rw-r--r--test/psych/test_to_yaml_properties.rb63
-rw-r--r--test/psych/test_tree_builder.rb79
-rw-r--r--test/psych/test_yaml.rb1248
-rw-r--r--test/psych/visitors/test_emitter.rb124
-rw-r--r--test/psych/visitors/test_to_ruby.rb323
-rw-r--r--test/psych/visitors/test_yaml_tree.rb140
66 files changed, 6056 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index f18967f..6950b40 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Mon Mar 29 06:47:25 2010 Aaron Patterson <aaron@tenderlovemaking.com>
+
+ * ext/psych/*: importing Psych to trunk
+ * test/psych/*: ditto
+ * lib/psych/*: ditto
+
Sun Mar 28 21:04:21 2010 NARUSE, Yui <naruse@ruby-lang.org>
* configure.in (ac_cv_func_snprintf, ac_cv_func_vsnprintf):
diff --git a/ext/psych/emitter.c b/ext/psych/emitter.c
new file mode 100644
index 0000000..74f91f2
--- /dev/null
+++ b/ext/psych/emitter.c
@@ -0,0 +1,413 @@
+#include <psych.h>
+
+VALUE cPsychEmitter;
+static ID id_write;
+
+static void emit(yaml_emitter_t * emitter, yaml_event_t * event)
+{
+ if(!yaml_emitter_emit(emitter, event))
+ rb_raise(rb_eRuntimeError, "%s", emitter->problem);
+}
+
+static int writer(void *ctx, unsigned char *buffer, size_t size)
+{
+ VALUE io = (VALUE)ctx;
+ VALUE str = rb_str_new((const char *)buffer, (long)size);
+ VALUE wrote = rb_funcall(io, id_write, 1, str);
+ return (int)NUM2INT(wrote);
+}
+
+static void dealloc(yaml_emitter_t * emitter)
+{
+ yaml_emitter_delete(emitter);
+ free(emitter);
+}
+
+static VALUE allocate(VALUE klass)
+{
+ yaml_emitter_t * emitter = malloc(sizeof(yaml_emitter_t));
+ yaml_emitter_initialize(emitter);
+ yaml_emitter_set_unicode(emitter, 1);
+ yaml_emitter_set_indent(emitter, 2);
+
+ return Data_Wrap_Struct(klass, 0, dealloc, emitter);
+}
+
+/* call-seq: Psych::Emitter.new(io)
+ *
+ * Create a new Psych::Emitter that writes to +io+.
+ */
+static VALUE initialize(VALUE self, VALUE io)
+{
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ yaml_emitter_set_output(emitter, writer, (void *)io);
+
+ return self;
+}
+
+/* call-seq: emitter.start_stream(encoding)
+ *
+ * Start a stream emission with +encoding+
+ *
+ * See Psych::Handler#start_stream
+ */
+static VALUE start_stream(VALUE self, VALUE encoding)
+{
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+ Check_Type(encoding, T_FIXNUM);
+
+ yaml_event_t event;
+ yaml_stream_start_event_initialize(&event, (yaml_encoding_t)NUM2INT(encoding));
+
+ emit(emitter, &event);
+
+ return self;
+}
+
+/* call-seq: emitter.end_stream
+ *
+ * End a stream emission
+ *
+ * See Psych::Handler#end_stream
+ */
+static VALUE end_stream(VALUE self)
+{
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ yaml_event_t event;
+ yaml_stream_end_event_initialize(&event);
+
+ emit(emitter, &event);
+
+ return self;
+}
+
+/* call-seq: emitter.start_document(version, tags, implicit)
+ *
+ * Start a document emission with YAML +version+, +tags+, and an +implicit+
+ * start.
+ *
+ * See Psych::Handler#start_document
+ */
+static VALUE start_document(VALUE self, VALUE version, VALUE tags, VALUE imp)
+{
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ yaml_version_directive_t version_directive;
+
+ Check_Type(version, T_ARRAY);
+
+ if(RARRAY_LEN(version) > 0) {
+ VALUE major = rb_ary_entry(version, (long)0);
+ VALUE minor = rb_ary_entry(version, (long)1);
+
+ version_directive.major = NUM2INT(major);
+ version_directive.minor = NUM2INT(minor);
+ }
+
+ yaml_tag_directive_t * head = NULL;
+ yaml_tag_directive_t * tail = NULL;
+
+ if(RTEST(tags)) {
+ int i = 0;
+
+ Check_Type(tags, T_ARRAY);
+
+ head = xcalloc((size_t)RARRAY_LEN(tags), sizeof(yaml_tag_directive_t));
+ tail = head;
+
+ for(i = 0; i < RARRAY_LEN(tags); i++) {
+ VALUE tuple = RARRAY_PTR(tags)[i];
+ Check_Type(tuple, T_ARRAY);
+
+ if(RARRAY_LEN(tuple) < 2) {
+ xfree(head);
+ rb_raise(rb_eRuntimeError, "tag tuple must be of length 2");
+ }
+
+ tail->handle = (yaml_char_t *)StringValuePtr(RARRAY_PTR(tuple)[0]);
+ tail->prefix = (yaml_char_t *)StringValuePtr(RARRAY_PTR(tuple)[1]);
+
+ tail++;
+ }
+ }
+
+ yaml_event_t event;
+ yaml_document_start_event_initialize(
+ &event,
+ (RARRAY_LEN(version) > 0) ? &version_directive : NULL,
+ head,
+ tail,
+ imp ? 1 : 0
+ );
+
+ emit(emitter, &event);
+
+ if(head) xfree(head);
+
+ return self;
+}
+
+/* call-seq: emitter.end_document(implicit)
+ *
+ * End a document emission with an +implicit+ ending.
+ *
+ * See Psych::Handler#end_document
+ */
+static VALUE end_document(VALUE self, VALUE imp)
+{
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ yaml_event_t event;
+ yaml_document_end_event_initialize(&event, imp ? 1 : 0);
+
+ emit(emitter, &event);
+
+ return self;
+}
+
+/* call-seq: emitter.scalar(value, anchor, tag, plain, quoted, style)
+ *
+ * Emit a scalar with +value+, +anchor+, +tag+, and a +plain+ or +quoted+
+ * string type with +style+.
+ *
+ * See Psych::Handler#scalar
+ */
+static VALUE scalar(
+ VALUE self,
+ VALUE value,
+ VALUE anchor,
+ VALUE tag,
+ VALUE plain,
+ VALUE quoted,
+ VALUE style
+ ) {
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ Check_Type(value, T_STRING);
+
+ yaml_event_t event;
+ yaml_scalar_event_initialize(
+ &event,
+ (yaml_char_t *)(NIL_P(anchor) ? NULL : StringValuePtr(anchor)),
+ (yaml_char_t *)(NIL_P(tag) ? NULL : StringValuePtr(tag)),
+ (yaml_char_t*)StringValuePtr(value),
+ (int)RSTRING_LEN(value),
+ plain ? 1 : 0,
+ quoted ? 1 : 0,
+ (yaml_scalar_style_t)NUM2INT(style)
+ );
+
+ emit(emitter, &event);
+
+ return self;
+}
+
+/* call-seq: emitter.start_sequence(anchor, tag, implicit, style)
+ *
+ * Start emitting a sequence with +anchor+, a +tag+, +implicit+ sequence
+ * start and end, along with +style+.
+ *
+ * See Psych::Handler#start_sequence
+ */
+static VALUE start_sequence(
+ VALUE self,
+ VALUE anchor,
+ VALUE tag,
+ VALUE implicit,
+ VALUE style
+ ) {
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ yaml_event_t event;
+ yaml_sequence_start_event_initialize(
+ &event,
+ (yaml_char_t *)(NIL_P(anchor) ? NULL : StringValuePtr(anchor)),
+ (yaml_char_t *)(NIL_P(tag) ? NULL : StringValuePtr(tag)),
+ implicit ? 1 : 0,
+ (yaml_sequence_style_t)NUM2INT(style)
+ );
+
+ emit(emitter, &event);
+
+ return self;
+}
+
+/* call-seq: emitter.end_sequence
+ *
+ * End sequence emission.
+ *
+ * See Psych::Handler#end_sequence
+ */
+static VALUE end_sequence(VALUE self)
+{
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ yaml_event_t event;
+ yaml_sequence_end_event_initialize(&event);
+
+ emit(emitter, &event);
+
+ return self;
+}
+
+/* call-seq: emitter.start_mapping(anchor, tag, implicit, style)
+ *
+ * Start emitting a YAML map with +anchor+, +tag+, an +implicit+ start
+ * and end, and +style+.
+ *
+ * See Psych::Handler#start_mapping
+ */
+static VALUE start_mapping(
+ VALUE self,
+ VALUE anchor,
+ VALUE tag,
+ VALUE implicit,
+ VALUE style
+ ) {
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ yaml_event_t event;
+ yaml_mapping_start_event_initialize(
+ &event,
+ (yaml_char_t *)(NIL_P(anchor) ? NULL : StringValuePtr(anchor)),
+ (yaml_char_t *)(NIL_P(tag) ? NULL : StringValuePtr(tag)),
+ implicit ? 1 : 0,
+ (yaml_sequence_style_t)NUM2INT(style)
+ );
+
+ emit(emitter, &event);
+
+ return self;
+}
+
+/* call-seq: emitter.end_mapping
+ *
+ * Emit the end of a mapping.
+ *
+ * See Psych::Handler#end_mapping
+ */
+static VALUE end_mapping(VALUE self)
+{
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ yaml_event_t event;
+ yaml_mapping_end_event_initialize(&event);
+
+ emit(emitter, &event);
+
+ return self;
+}
+
+/* call-seq: emitter.alias(anchor)
+ *
+ * Emit an alias with +anchor+.
+ *
+ * See Psych::Handler#alias
+ */
+static VALUE alias(VALUE self, VALUE anchor)
+{
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ yaml_event_t event;
+ yaml_alias_event_initialize(
+ &event,
+ (yaml_char_t *)(NIL_P(anchor) ? NULL : StringValuePtr(anchor))
+ );
+
+ emit(emitter, &event);
+
+ return self;
+}
+
+/* call-seq: emitter.canonical = true
+ *
+ * Set the output style to canonical, or not.
+ */
+static VALUE set_canonical(VALUE self, VALUE style)
+{
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ yaml_emitter_set_canonical(emitter, Qtrue == style ? 1 : 0);
+
+ return style;
+}
+
+/* call-seq: emitter.canonical
+ *
+ * Get the output style, canonical or not.
+ */
+static VALUE canonical(VALUE self)
+{
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ return (emitter->canonical == 0) ? Qfalse : Qtrue;
+}
+
+/* call-seq: emitter.indentation = level
+ *
+ * Set the indentation level to +level+.
+ */
+static VALUE set_indentation(VALUE self, VALUE level)
+{
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ yaml_emitter_set_indent(emitter, NUM2INT(level));
+
+ return level;
+}
+
+/* call-seq: emitter.indentation
+ *
+ * Get the indentation level.
+ */
+static VALUE indentation(VALUE self)
+{
+ yaml_emitter_t * emitter;
+ Data_Get_Struct(self, yaml_emitter_t, emitter);
+
+ return INT2NUM(emitter->best_indent);
+}
+
+void Init_psych_emitter()
+{
+ VALUE psych = rb_define_module("Psych");
+ VALUE handler = rb_define_class_under(psych, "Handler", rb_cObject);
+ cPsychEmitter = rb_define_class_under(psych, "Emitter", handler);
+
+ rb_define_alloc_func(cPsychEmitter, allocate);
+
+ rb_define_method(cPsychEmitter, "initialize", initialize, 1);
+ rb_define_method(cPsychEmitter, "start_stream", start_stream, 1);
+ rb_define_method(cPsychEmitter, "end_stream", end_stream, 0);
+ rb_define_method(cPsychEmitter, "start_document", start_document, 3);
+ rb_define_method(cPsychEmitter, "end_document", end_document, 1);
+ rb_define_method(cPsychEmitter, "scalar", scalar, 6);
+ rb_define_method(cPsychEmitter, "start_sequence", start_sequence, 4);
+ rb_define_method(cPsychEmitter, "end_sequence", end_sequence, 0);
+ rb_define_method(cPsychEmitter, "start_mapping", start_mapping, 4);
+ rb_define_method(cPsychEmitter, "end_mapping", end_mapping, 0);
+ rb_define_method(cPsychEmitter, "alias", alias, 1);
+ rb_define_method(cPsychEmitter, "canonical", canonical, 0);
+ rb_define_method(cPsychEmitter, "canonical=", set_canonical, 1);
+ rb_define_method(cPsychEmitter, "indentation", indentation, 0);
+ rb_define_method(cPsychEmitter, "indentation=", set_indentation, 1);
+
+ id_write = rb_intern("write");
+}
+/* vim: set noet sws=4 sw=4: */
diff --git a/ext/psych/emitter.h b/ext/psych/emitter.h
new file mode 100644
index 0000000..560451e
--- /dev/null
+++ b/ext/psych/emitter.h
@@ -0,0 +1,8 @@
+#ifndef PSYCH_EMITTER_H
+#define PSYCH_EMITTER_H
+
+#include <psych.h>
+
+void Init_psych_emitter();
+
+#endif
diff --git a/ext/psych/extconf.rb b/ext/psych/extconf.rb
new file mode 100644
index 0000000..673b950
--- /dev/null
+++ b/ext/psych/extconf.rb
@@ -0,0 +1,22 @@
+require 'mkmf'
+
+# :stopdoc:
+
+RbConfig::MAKEFILE_CONFIG['CC'] = ENV['CC'] if ENV['CC']
+
+INCLUDEDIR = Config::CONFIG['includedir']
+LIBDIR = Config::CONFIG['libdir']
+LIB_DIRS = ['/opt/local/lib', '/usr/local/lib', LIBDIR, '/usr/lib']
+libyaml = dir_config 'libyaml', '/opt/local/include', '/opt/local/lib'
+
+def asplode missing
+ abort "#{missing} is missing. Try 'port install libyaml +universal' " +
+ "or 'yum install libyaml-devel'"
+end
+
+asplode('yaml.h') unless find_header 'yaml.h'
+asplode('libyaml') unless find_library 'yaml', 'yaml_get_version'
+
+create_makefile 'psych/psych'
+
+# :startdoc:
diff --git a/ext/psych/parser.c b/ext/psych/parser.c
new file mode 100644
index 0000000..2bad49f
--- /dev/null
+++ b/ext/psych/parser.c
@@ -0,0 +1,314 @@
+#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;
+
+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;
+
+ yaml_parser_initialize(&parser);
+
+ if(rb_respond_to(yaml, id_read)) {
+ yaml_parser_set_input(&parser, io_reader, (void *)yaml);
+ } else {
+ yaml_parser_set_input_string(
+ &parser,
+ (const unsigned char *)StringValuePtr(yaml),
+ (size_t)RSTRING_LEN(yaml)
+ );
+ }
+
+ int done = 0;
+#ifdef HAVE_RUBY_ENCODING_H
+ int encoding = rb_enc_find_index("ASCII-8BIT");
+#endif
+
+ VALUE handler = rb_iv_get(self, "@handler");
+
+ 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;
+ }
+#endif
+
+ rb_funcall(handler, id_start_stream, 1,
+ INT2NUM((long)event.data.stream_start.encoding)
+ );
+ break;
+ case YAML_DOCUMENT_START_EVENT:
+ {
+ // 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();
+
+ // Get a list of tag directives (if any)
+ VALUE tag_directives = 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;
+ if(start->handle) {
+ handle = rb_str_new2((const char *)start->handle);
+#ifdef HAVE_RUBY_ENCODING_H
+ rb_enc_associate_index(handle, encoding);
+#endif
+ }
+
+ VALUE prefix = Qnil;
+ if(start->prefix) {
+ prefix = rb_str_new2((const char *)start->prefix);
+#ifdef HAVE_RUBY_ENCODING_H
+ rb_enc_associate_index(prefix, encoding);
+#endif
+ }
+
+ VALUE pair = rb_ary_new3((long)2, handle, prefix);
+ rb_ary_push(tag_directives, pair);
+ }
+ }
+ 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
+ rb_enc_associate_index(alias, encoding);
+#endif
+ }
+
+ rb_funcall(handler, id_alias, 1, alias);
+ }
+ break;
+ case YAML_SCALAR_EVENT:
+ {
+ VALUE val = rb_str_new(
+ (const char *)event.data.scalar.value,
+ (long)event.data.scalar.length
+ );
+
+#ifdef HAVE_RUBY_ENCODING_H
+ rb_enc_associate_index(val, encoding);
+#endif
+
+ VALUE anchor = Qnil;
+ if(event.data.scalar.anchor) {
+ anchor = rb_str_new2((const char *)event.data.scalar.anchor);
+#ifdef HAVE_RUBY_ENCODING_H
+ rb_enc_associate_index(anchor, encoding);
+#endif
+ }
+
+ VALUE tag = Qnil;
+ if(event.data.scalar.tag) {
+ tag = rb_str_new2((const char *)event.data.scalar.tag);
+#ifdef HAVE_RUBY_ENCODING_H
+ rb_enc_associate_index(tag, encoding);
+#endif
+ }
+
+ VALUE plain_implicit =
+ event.data.scalar.plain_implicit == 0 ? Qfalse : Qtrue;
+
+ VALUE quoted_implicit =
+ event.data.scalar.quoted_implicit == 0 ? Qfalse : Qtrue;
+
+ VALUE 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;
+ if(event.data.sequence_start.anchor) {
+ anchor = rb_str_new2((const char *)event.data.sequence_start.anchor);
+#ifdef HAVE_RUBY_ENCODING_H
+ rb_enc_associate_index(anchor, encoding);
+#endif
+ }
+
+ VALUE tag = Qnil;
+ if(event.data.sequence_start.tag) {
+ tag = rb_str_new2((const char *)event.data.sequence_start.tag);
+#ifdef HAVE_RUBY_ENCODING_H
+ rb_enc_associate_index(tag, encoding);
+#endif
+ }
+
+ VALUE implicit =
+ event.data.sequence_start.implicit == 0 ? Qfalse : Qtrue;
+
+ VALUE 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;
+ if(event.data.mapping_start.anchor) {
+ anchor = rb_str_new2((const char *)event.data.mapping_start.anchor);
+#ifdef HAVE_RUBY_ENCODING_H
+ rb_enc_associate_index(anchor, encoding);
+#endif
+ }
+
+ VALUE tag = Qnil;
+ if(event.data.mapping_start.tag) {
+ tag = rb_str_new2((const char *)event.data.mapping_start.tag);
+#ifdef HAVE_RUBY_ENCODING_H
+ rb_enc_associate_index(tag, encoding);
+#endif
+ }
+
+ VALUE implicit =
+ event.data.mapping_start.implicit == 0 ? Qfalse : Qtrue;
+
+ VALUE 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: */
diff --git a/ext/psych/parser.h b/ext/psych/parser.h
new file mode 100644
index 0000000..25e896f
--- /dev/null
+++ b/ext/psych/parser.h
@@ -0,0 +1,6 @@
+#ifndef PSYCH_PARSER_H
+#define PSYCH_PARSER_H
+
+void Init_psych_parser();
+
+#endif
diff --git a/ext/psych/psych.c b/ext/psych/psych.c
new file mode 100644
index 0000000..ff035af
--- /dev/null
+++ b/ext/psych/psych.c
@@ -0,0 +1,35 @@
+#include <psych.h>
+
+/* call-seq: Psych.libyaml_version
+ *
+ * Returns the version of libyaml being used
+ */
+static VALUE libyaml_version(VALUE module)
+{
+ int major, minor, patch;
+
+ yaml_get_version(&major, &minor, &patch);
+
+ VALUE list[3] = {
+ INT2NUM((long)major),
+ INT2NUM((long)minor),
+ INT2NUM((long)patch)
+ };
+
+ return rb_ary_new4((long)3, list);
+}
+
+VALUE mPsych;
+
+void Init_psych()
+{
+ mPsych = rb_define_module("Psych");
+
+ rb_define_singleton_method(mPsych, "libyaml_version", libyaml_version, 0);
+
+ Init_psych_parser();
+ Init_psych_emitter();
+ Init_psych_to_ruby();
+ Init_psych_yaml_tree();
+}
+/* vim: set noet sws=4 sw=4: */
diff --git a/ext/psych/psych.h b/ext/psych/psych.h
new file mode 100644
index 0000000..9f1be44
--- /dev/null
+++ b/ext/psych/psych.h
@@ -0,0 +1,20 @@
+#ifndef PSYCH_H
+#define PSYCH_H
+
+#include <ruby.h>
+
+#ifdef HAVE_RUBY_ENCODING_H
+#include <ruby/encoding.h>
+#endif
+
+#include <yaml.h>
+
+#include <parser.h>
+#include <emitter.h>
+#include <to_ruby.h>
+#include <yaml_tree.h>
+
+extern VALUE mPsych;
+
+
+#endif
diff --git a/ext/psych/to_ruby.c b/ext/psych/to_ruby.c
new file mode 100644
index 0000000..ed5245e
--- /dev/null
+++ b/ext/psych/to_ruby.c
@@ -0,0 +1,41 @@
+#include <psych.h>
+
+VALUE cPsychVisitorsToRuby;
+
+/* call-seq: vis.build_exception(klass, message)
+ *
+ * Create an exception with class +klass+ and +message+
+ */
+static VALUE build_exception(VALUE self, VALUE klass, VALUE mesg)
+{
+ VALUE e = rb_obj_alloc(klass);
+
+ rb_iv_set(e, "mesg", mesg);
+
+ return e;
+}
+
+/* call-seq: vis.path2class(path)
+ *
+ * Convert +path+ string to a class
+ */
+static VALUE path2class(VALUE self, VALUE path)
+{
+#ifdef HAVE_RUBY_ENCODING_H
+ return rb_path_to_class(path);
+#else
+ return rb_path2class(StringValuePtr(path));
+#endif
+}
+
+void Init_psych_to_ruby(void)
+{
+ VALUE psych = rb_define_module("Psych");
+ VALUE visitors = rb_define_module_under(psych, "Visitors");
+ VALUE visitor = rb_define_class_under(visitors, "Visitor", rb_cObject);
+ cPsychVisitorsToRuby = rb_define_class_under(visitors, "ToRuby", visitor);
+
+ rb_define_private_method(cPsychVisitorsToRuby, "build_exception", build_exception, 2);
+ rb_define_private_method(cPsychVisitorsToRuby, "path2class", path2class, 1);
+}
+/* vim: set noet sws=4 sw=4: */
diff --git a/ext/psych/to_ruby.h b/ext/psych/to_ruby.h
new file mode 100644
index 0000000..7b8e757
--- /dev/null
+++ b/ext/psych/to_ruby.h
@@ -0,0 +1,8 @@
+#ifndef PSYCH_TO_RUBY_H
+#define PSYCH_TO_RUBY_H
+
+#include <psych.h>
+
+void Init_psych_to_ruby(void);
+
+#endif
diff --git a/ext/psych/yaml_tree.c b/ext/psych/yaml_tree.c
new file mode 100644
index 0000000..bcf24d2
--- /dev/null
+++ b/ext/psych/yaml_tree.c
@@ -0,0 +1,24 @@
+#include <psych.h>
+
+VALUE cPsychVisitorsYamlTree;
+
+/*
+ * call-seq: private_iv_get(target, prop)
+ *
+ * Get the private instance variable +prop+ from +target+
+ */
+static VALUE private_iv_get(VALUE self, VALUE target, VALUE prop)
+{
+ return rb_attr_get(target, rb_intern(StringValuePtr(prop)));
+}
+
+void Init_psych_yaml_tree(void)
+{
+ VALUE psych = rb_define_module("Psych");
+ VALUE visitors = rb_define_module_under(psych, "Visitors");
+ VALUE visitor = rb_define_class_under(visitors, "Visitor", rb_cObject);
+ cPsychVisitorsYamlTree = rb_define_class_under(visitors, "YAMLTree", visitor);
+
+ rb_define_private_method(cPsychVisitorsYamlTree, "private_iv_get", private_iv_get, 2);
+}
+/* vim: set noet sws=4 sw=4: */
diff --git a/ext/psych/yaml_tree.h b/ext/psych/yaml_tree.h
new file mode 100644
index 0000000..4628a69
--- /dev/null
+++ b/ext/psych/yaml_tree.h
@@ -0,0 +1,8 @@
+#ifndef PSYCH_YAML_TREE_H
+#define PSYCH_YAML_TREE_H
+
+#include <psych.h>
+
+void Init_psych_yaml_tree(void);
+
+#endif
diff --git a/lib/psych.rb b/lib/psych.rb
new file mode 100644
index 0000000..eb13d19
--- /dev/null
+++ b/lib/psych.rb
@@ -0,0 +1,236 @@
+require 'psych/psych'
+require 'psych/nodes'
+require 'psych/visitors'
+require 'psych/handler'
+require 'psych/tree_builder'
+require 'psych/parser'
+require 'psych/omap'
+require 'psych/set'
+require 'psych/coder'
+require 'psych/core_ext'
+
+###
+# = Overview
+#
+# Psych is a YAML parser and emitter. Psych leverages
+# libyaml[http://libyaml.org] for it's YAML parsing and emitting capabilities.
+# In addition to wrapping libyaml, Psych also knows how to serialize and
+# de-serialize most Ruby objects to and from the YAML format.
+#
+# = I NEED TO PARSE OR EMIT YAML RIGHT NOW!
+#
+# # Parse some YAML
+# Psych.load("--- foo") # => "foo"
+#
+# # Emit some YAML
+# Psych.dump("foo") # => "--- foo\n...\n"
+# { :a => 'b'}.to_yaml # => "---\n:a: b\n"
+#
+# Got more time on your hands? Keep on reading!
+#
+# == YAML Parsing
+#
+# Psych provides a range of interfaces for parsing a YAML document ranging from
+# low level to high level, depending on your parsing needs. At the lowest
+# level, is an event based parser. Mid level is access to the raw YAML AST,
+# and at the highest level is the ability to unmarshal YAML to ruby objects.
+#
+# === Low level parsing
+#
+# The lowest level parser should be used when the YAML input is already known,
+# and the developer does not want to pay the price of building an AST or
+# automatic detection and conversion to ruby objects. See Psych::Parser for
+# more information on using the event based parser.
+#
+# === Mid level parsing
+#
+# Psych provides access to an AST produced from parsing a YAML document. This
+# tree is built using the Psych::Parser and Psych::TreeBuilder. The AST can
+# be examined and manipulated freely. Please see Psych::parse_stream,
+# Psych::Nodes, and Psych::Nodes::Node for more information on dealing with
+# YAML syntax trees.
+#
+# === High level parsing
+#
+# The high level YAML parser provided by Psych simply takes YAML as input and
+# returns a Ruby data structure. For information on using the high level parser
+# see Psych.load
+#
+# == YAML Emitting
+#
+# Psych provides a range of interfaces ranging from low to high level for
+# producing YAML documents. Very similar to the YAML parsing interfaces, Psych
+# provides at the lowest level, an event based system, mid-level is building
+# a YAML AST, and the highest level is converting a Ruby object straight to
+# a YAML document.
+#
+# === Low level emitting
+#
+# The lowest level emitter is an event based system. Events are sent to a
+# Psych::Emitter object. That object knows how to convert the events to a YAML
+# document. This interface should be used when document format is known in
+# advance or speed is a concern. See Psych::Emitter for more information.
+#
+# === Mid level emitting
+#
+# At the mid level is building an AST. This AST is exactly the same as the AST
+# used when parsing a YAML document. Users can build an AST by hand and the
+# AST knows how to emit itself as a YAML document. See Psych::Nodes,
+# Psych::Nodes::Node, and Psych::TreeBuilder for more information on building
+# a YAML AST.
+#
+# === High level emitting
+#
+# The high level emitter has the easiest interface. Psych simply takes a Ruby
+# data structure and converts it to a YAML document. See Psych.dump for more
+# information on dumping a Ruby data structure.
+
+module Psych
+ # The version is Psych you're using
+ VERSION = '1.0.0'
+
+ # The version of libyaml Psych is using
+ LIBYAML_VERSION = Psych.libyaml_version.join '.'
+
+ ###
+ # Load +yaml+ in to a Ruby data structure. If multiple documents are
+ # provided, the object contained in the first document will be returned.
+ #
+ # Example:
+ #
+ # Psych.load("--- a") # => 'a'
+ # Psych.load("---\n - a\n - b") # => ['a', 'b']
+ def self.load yaml
+ parse(yaml).to_ruby
+ end
+
+ ###
+ # Parse a YAML string in +yaml+. Returns the first object of a YAML AST.
+ #
+ # Example:
+ #
+ # Psych.load("---\n - a\n - b") # => #<Psych::Nodes::Sequence:0x00>
+ #
+ # See Psych::Nodes for more information about YAML AST.
+ def self.parse yaml
+ parse_stream(yaml).children.first.children.first
+ end
+
+ ###
+ # Parse a file at +filename+. Returns the YAML AST.
+ def self.parse_file filename
+ File.open filename do |f|
+ parse f
+ end
+ end
+
+ ###
+ # Returns a default parser
+ def self.parser
+ Psych::Parser.new(TreeBuilder.new)
+ end
+
+ ###
+ # Parse a YAML string in +yaml+. Returns the full AST for the YAML document.
+ # This method can handle multiple YAML documents contained in +yaml+.
+ #
+ # Example:
+ #
+ # Psych.load("---\n - a\n - b") # => #<Psych::Nodes::Stream:0x00>
+ #
+ # See Psych::Nodes for more information about YAML AST.
+ def self.parse_stream yaml
+ parser = self.parser
+ parser.parse yaml
+ parser.handler.root
+ end
+
+ ###
+ # Dump Ruby object +o+ to a YAML string using +options+.
+ #
+ # Example:
+ #
+ # Psych.dump(['a', 'b']) # => "---\n- a\n- b\n"
+ def self.dump o, options = {}
+ visitor = Psych::Visitors::YAMLTree.new options
+ visitor << o
+ visitor.tree.to_yaml
+ end
+
+ ###
+ # Dump a list of objects as separate documents to a document stream.
+ #
+ # Example:
+ #
+ # Psych.dump_stream("foo\n ", {}) # => "--- ! \"foo\\n \"\n--- {}\n"
+ def self.dump_stream *objects
+ visitor = Psych::Visitors::YAMLTree.new {}
+ objects.each do |o|
+ visitor << o
+ end
+ visitor.tree.to_yaml
+ end
+
+ ###
+ # Dump Ruby object +o+ to a JSON string.
+ def self.to_json o
+ visitor = Psych::Visitors::JSONTree.new(:json => true)
+ visitor << o
+ visitor.tree.to_yaml
+ end
+
+ ###
+ # Load multiple documents given in +yaml+. Returns the parsed documents
+ # as a list. For example:
+ #
+ # Psych.load_documents("--- foo\n...\n--- bar\n...") # => ['foo', 'bar']
+ #
+ def self.load_stream yaml
+ parse_stream(yaml).children.map { |child| child.to_ruby }
+ end
+
+ def self.load_documents yaml, &block
+ if $VERBOSE
+ warn "#{caller[0]}: load_documents is deprecated, use load_stream"
+ end
+ list = load_stream yaml
+ return list unless block_given?
+ list.each(&block)
+ end
+
+ ###
+ # Load the document contained in +filename+. Returns the yaml contained in
+ # +filename+ as a ruby object
+ def self.load_file filename
+ self.load File.open(filename)
+ end
+
+ # :stopdoc:
+ @domain_types = {}
+ def self.add_domain_type domain, type_tag, &block
+ @domain_types[type_tag] = ["http://#{domain}", block]
+ end
+
+ def self.add_builtin_type type_tag, &block
+ @domain_types[type_tag] = ['yaml.org', block]
+ end
+
+ def self.remove_type type_tag
+ @domain_types.delete type_tag
+ end
+
+ @load_tags = {}
+ @dump_tags = {}
+ def self.add_tag tag, klass
+ @load_tags[tag] = klass
+ @dump_tags[klass] = tag
+ end
+
+ class << self
+ attr_accessor :load_tags
+ attr_accessor :dump_tags
+ attr_accessor :domain_types
+ end
+
+ # :startdoc:
+end
diff --git a/lib/psych/coder.rb b/lib/psych/coder.rb
new file mode 100644
index 0000000..c9f9a18
--- /dev/null
+++ b/lib/psych/coder.rb
@@ -0,0 +1,68 @@
+module Psych
+ ###
+ # If an object defines +encode_with+, then an instance of Psych::Coder will
+ # passed to the method when the object is being serialized. The Coder
+ # automatically assumes a Psych::Nodes::Mapping is being emitted. Other
+ # objects like Sequence and Scalar may be emitted if +seq=+ or +scalar=+ are
+ # called, respectively.
+ class Coder
+ attr_accessor :tag, :style, :implicit
+ attr_reader :type, :map, :scalar, :seq
+
+ def initialize tag
+ @map = {}
+ @seq = []
+ @implicit = false
+ @type = :map
+ @tag = tag
+ @style = Psych::Nodes::Mapping::BLOCK
+ @scalar = nil
+ end
+
+ # Emit a scalar with +value+ and +tag+
+ def represent_scalar tag, value
+ self.tag = tag
+ self.scalar = value
+ end
+
+ # Emit a sequence with +list+ and +tag+
+ def represent_seq tag, list
+ @tag = tag
+ self.seq = list
+ end
+
+ # Emit a sequence with +map+ and +tag+
+ def represent_map tag, map
+ @tag = tag
+ self.map = map
+ end
+
+ # Emit a scalar with +value+
+ def scalar= value
+ @type = :scalar
+ @scalar = value
+ end
+
+ # Emit a map with +value+
+ def map= map
+ @type = :map
+ @map = map
+ end
+
+ def []= k, v
+ @type = :map
+ @map[k] = v
+ end
+
+ def [] k
+ @type = :map
+ @map[k]
+ end
+
+ # Emit a sequence of +list+
+ def seq= list
+ @type = :seq
+ @seq = list
+ end
+ end
+end
diff --git a/lib/psych/core_ext.rb b/lib/psych/core_ext.rb
new file mode 100644
index 0000000..bd22219
--- /dev/null
+++ b/lib/psych/core_ext.rb
@@ -0,0 +1,22 @@
+class Object
+ def self.yaml_tag url
+ Psych.add_tag(url, self)
+ end
+
+ # FIXME: rename this to "to_yaml" when syck is removed
+
+ ###
+ # call-seq: to_yaml
+ #
+ # Convert an object to YAML
+ def psych_to_yaml options = {}
+ Psych.dump self, options
+ end
+ alias :to_yaml :psych_to_yaml
+end
+
+module Kernel
+ def y *objects
+ puts Psych.dump_stream(*objects)
+ end
+end
diff --git a/lib/psych/emitter.rb b/lib/psych/emitter.rb
new file mode 100644
index 0000000..b06ad3a
--- /dev/null
+++ b/lib/psych/emitter.rb
@@ -0,0 +1,4 @@
+module Psych
+ class Emitter < Psych::Handler
+ end
+end
diff --git a/lib/psych/handler.rb b/lib/psych/handler.rb
new file mode 100644
index 0000000..bfc62d7
--- /dev/null
+++ b/lib/psych/handler.rb
@@ -0,0 +1,215 @@
+module Psych
+ ###
+ # Psych::Handler is an abstract base class that defines the events used
+ # when dealing with Psych::Parser. Clients who want to use Psych::Parser
+ # should implement a class that inherits from Psych::Handler and define
+ # events that they can handle.
+ #
+ # Psych::Handler defines all events that Psych::Parser can possibly send to
+ # event handlers.
+ #
+ # See Psych::Parser for more details
+ class Handler
+ ###
+ # Called with +encoding+ when the YAML stream starts. This method is
+ # called once per stream. A stream may contain multiple documents.
+ #
+ # See the constants in Psych::Parser for the possible values of +encoding+.
+ def start_stream encoding
+ end
+
+ ###
+ # Called when the document starts with the declared +version+,
+ # +tag_directives+, if the document is +implicit+.
+ #
+ # +version+ will be an array of integers indicating the YAML version being
+ # dealt with, +tag_directives+ is a list of tuples indicating the prefix
+ # and suffix of each tag, and +implicit+ is a boolean indicating whether
+ # the document is started implicitly.
+ #
+ # === Example
+ #
+ # Given the following YAML:
+ #
+ # %YAML 1.1
+ # %TAG ! tag:tenderlovemaking.com,2009:
+ # --- !squee
+ #
+ # The parameters for start_document must be this:
+ #
+ # version # => [1, 1]
+ # tag_directives # => [["!", "tag:tenderlovemaking.com,2009:"]]
+ # implicit # => false
+ def start_document version, tag_directives, implicit
+ end
+
+ ###
+ # Called with the document ends. +implicit+ is a boolean value indicating
+ # whether or not the document has an implicit ending.
+ #
+ # === Example
+ #
+ # Given the following YAML:
+ #
+ # ---
+ # hello world
+ #
+ # +implicit+ will be true. Given this YAML:
+ #
+ # ---
+ # hello world
+ # ...
+ #
+ # +implicit+ will be false.
+ def end_document implicit
+ end
+
+ ###
+ # Called when an alias is found to +anchor+. +anchor+ will be the name
+ # of the anchor found.
+ #
+ # === Example
+ #
+ # Here we have an example of an array that references itself in YAML:
+ #
+ # --- &ponies
+ # - first element
+ # - *ponies
+ #
+ # &ponies is the achor, *ponies is the alias. In this case, alias is
+ # called with "ponies".
+ def alias anchor
+ end
+
+ ###
+ # Called when a scalar +value+ is found. The scalar may have an
+ # +anchor+, a +tag+, be implicitly +plain+ or implicitly +quoted+
+ #
+ # +value+ is the string value of the scalar
+ # +anchor+ is an associated anchor or nil
+ # +tag+ is an associated tag or nil
+ # +plain+ is a boolean value
+ # +quoted+ is a boolean value
+ # +style+ is an integer idicating the string style
+ #
+ # See the constants in Psych::Nodes::Scalar for the possible values of
+ # +style+
+ #
+ # === Example
+ #
+ # Here is a YAML document that exercises most of the possible ways this
+ # method can be called:
+ #
+ # ---
+ # - !str "foo"
+ # - &anchor fun
+ # - many
+ # lines
+ # - |
+ # many
+ # newlines
+ #
+ # The above YAML document contains a list with four strings. Here are
+ # the parameters sent to this method in the same order:
+ #
+ # # value anchor tag plain quoted style
+ # ["foo", nil, "!str", false, false, 3 ]
+ # ["fun", "anchor", nil, true, false, 1 ]
+ # ["many lines", nil, nil, true, false, 1 ]
+ # ["many\nnewlines\n", nil, nil, false, true, 4 ]
+ #
+ def scalar value, anchor, tag, plain, quoted, style
+ end
+
+ ###
+ # Called when a sequence is started.
+ #
+ # +anchor+ is the anchor associated with the sequence or nil.
+ # +tag+ is the tag associated with the sequence or nil.
+ # +implicit+ a boolean indicating whether or not the sequence was implicitly
+ # started.
+ # +style+ is an integer indicating the list style.
+ #
+ # See the constants in Psych::Nodes::Sequence for the possible values of
+ # +style+.
+ #
+ # === Example
+ #
+ # Here is a YAML document that exercises most of the possible ways this
+ # method can be called:
+ #
+ # ---
+ # - !!seq [
+ # a
+ # ]
+ # - &pewpew
+ # - b
+ #
+ # The above YAML document consists of three lists, an outer list that
+ # contains two inner lists. Here is a matrix of the parameters sent
+ # to represent these lists:
+ #
+ # # anchor tag implicit style
+ # [nil, nil, true, 1 ]
+ # [nil, "tag:yaml.org,2002:seq", false, 2 ]
+ # ["pewpew", nil, true, 1 ]
+
+ def start_sequence anchor, tag, implicit, style
+ end
+
+ ###
+ # Called when a sequence ends.
+ def end_sequence
+ end
+
+ ###
+ # Called when a map starts.
+ #
+ # +anchor+ is the anchor associated with the map or +nil+.
+ # +tag+ is the tag associated with the map or +nil+.
+ # +implicit+ is a boolean indicating whether or not the map was implicitly
+ # started.
+ # +style+ is an integer indicating the mapping style.
+ #
+ # See the constants in Psych::Nodes::Mapping for the possible values of
+ # +style+.
+ #
+ # === Example
+ #
+ # Here is a YAML document that exercises most of the possible ways this
+ # method can be called:
+ #
+ # ---
+ # k: !!map { hello: world }
+ # v: &pewpew
+ # hello: world
+ #
+ # The above YAML document consists of three maps, an outer map that contains
+ # two inner maps. Below is a matrix of the parameters sent in order to
+ # represent these three maps:
+ #
+ # # anchor tag implicit style
+ # [nil, nil, true, 1 ]
+ # [nil, "tag:yaml.org,2002:map", false, 2 ]
+ # ["pewpew", nil, true, 1 ]
+
+ def start_mapping anchor, tag, implicit, style
+ end
+
+ ###
+ # Called when a map ends
+ def end_mapping
+ end
+
+ ###
+ # Called when an empty event happens. (Which, as far as I can tell, is
+ # never).
+ def empty
+ end
+
+ ###
+ # Called when the YAML stream ends
+ def end_stream
+ end
+ end
+end
diff --git a/lib/psych/nodes.rb b/lib/psych/nodes.rb
new file mode 100644
index 0000000..9e5946d
--- /dev/null
+++ b/lib/psych/nodes.rb
@@ -0,0 +1,77 @@
+require 'psych/nodes/node'
+require 'psych/nodes/stream'
+require 'psych/nodes/document'
+require 'psych/nodes/sequence'
+require 'psych/nodes/scalar'
+require 'psych/nodes/mapping'
+require 'psych/nodes/alias'
+
+module Psych
+ ###
+ # = Overview
+ #
+ # When using Psych.load to deserialize a YAML document, the document is
+ # translated to an intermediary AST. That intermediary AST is then
+ # translated in to a Ruby object graph.
+ #
+ # In the opposite direction, when using Psych.dump, the Ruby object graph is
+ # translated to an intermediary AST which is then converted to a YAML
+ # document.
+ #
+ # Psych::Nodes contains all of the classes that make up the nodes of a YAML
+ # AST. You can manually build an AST and use one of the visitors (see
+ # Psych::Visitors) to convert that AST to either a YAML document or to a
+ # Ruby object graph.
+ #
+ # Here is an example of building an AST that represents a list with one
+ # scalar:
+ #
+ # # Create our nodes
+ # stream = Psych::Nodes::Stream.new
+ # doc = Psych::Nodes::Document.new
+ # seq = Psych::Nodes::Sequence.new
+ # scalar = Psych::Nodes::Scalar.new('foo')
+ #
+ # # Build up our tree
+ # stream.children << doc
+ # doc.children << seq
+ # seq.children << scalar
+ #
+ # The stream is the root of the tree. We can then convert the tree to YAML:
+ #
+ # stream.to_yaml => "---\n- foo\n"
+ #
+ # Or convert it to Ruby:
+ #
+ # stream.to_ruby => [["foo"]]
+ #
+ # == YAML AST Requirements
+ #
+ # A valid YAML AST *must* have one Psych::Nodes::Stream at the root. A
+ # Psych::Nodes::Stream node must have 1 or more Psych::Nodes::Document nodes
+ # as children.
+ #
+ # Psych::Nodes::Document nodes must have one and *only* one child. That child
+ # may be one of:
+ #
+ # * Psych::Nodes::Sequence
+ # * Psych::Nodes::Mapping
+ # * Psych::Nodes::Scalar
+ #
+ # Psych::Nodes::Sequence and Psych::Nodes::Mapping nodes may have many
+ # children, but Psych::Nodes::Mapping nodes should have an even number of
+ # children.
+ #
+ # All of these are valid children for Psych::Nodes::Sequence and
+ # Psych::Nodes::Mapping nodes:
+ #
+ # * Psych::Nodes::Sequence
+ # * Psych::Nodes::Mapping
+ # * Psych::Nodes::Scalar
+ # * Psych::Nodes::Alias
+ #
+ # Psych::Nodes::Scalar and Psych::Nodes::Alias are both terminal nodes and
+ # should not have any children.
+ module Nodes
+ end
+end
diff --git a/lib/psych/nodes/alias.rb b/lib/psych/nodes/alias.rb
new file mode 100644
index 0000000..5bd4df1
--- /dev/null
+++ b/lib/psych/nodes/alias.rb
@@ -0,0 +1,18 @@
+module Psych
+ module Nodes
+ ###
+ # This class represents a {YAML Alias}[http://yaml.org/spec/1.1/#alias].
+ # It points to an +anchor+.
+ #
+ # A Psych::Nodes::Alias is a terminal node and may have no children.
+ class Alias < Psych::Nodes::Node
+ # The anchor this alias links to
+ attr_accessor :anchor
+
+ # Create a new Alias that points to an +anchor+
+ def initialize anchor
+ @anchor = anchor
+ end
+ end
+ end
+end
diff --git a/lib/psych/nodes/document.rb b/lib/psych/nodes/document.rb
new file mode 100644
index 0000000..32014d6
--- /dev/null
+++ b/lib/psych/nodes/document.rb
@@ -0,0 +1,60 @@
+module Psych
+ module Nodes
+ ###
+ # This represents a YAML Document. This node must be a child of
+ # Psych::Nodes::Stream. A Psych::Nodes::Document must have one child,
+ # and that child may be one of the following:
+ #
+ # * Psych::Nodes::Sequence
+ # * Psych::Nodes::Mapping
+ # * Psych::Nodes::Scalar
+ class Document < Psych::Nodes::Node
+ # The version of the YAML document
+ attr_accessor :version
+
+ # A list of tag directives for this document
+ attr_accessor :tag_directives
+
+ # Was this document implicitly created?
+ attr_accessor :implicit
+
+ # Is the end of the document implicit?
+ attr_accessor :implicit_end
+
+ ###
+ # Create a new Psych::Nodes::Document object.
+ #
+ # +version+ is a list indicating the YAML version.
+ # +tags_directives+ is a list of tag directive declarations
+ # +implicit+ is a flag indicating whether the document will be implicitly
+ # started.
+ #
+ # == Example:
+ # This creates a YAML document object that represents a YAML 1.1 document
+ # with one tag directive, and has an implicit start:
+ #
+ # Psych::Nodes::Document.new(
+ # [1,1],
+ # [["!", "tag:tenderlovemaking.com,2009:"]],
+ # true
+ # )
+ #
+ # == See Also
+ # See also Psych::Handler#start_document
+ def initialize version = [], tag_directives = [], implicit = false
+ super()
+ @version = version
+ @tag_directives = tag_directives
+ @implicit = implicit
+ @implicit_end = true
+ end
+
+ ###
+ # Returns the root node. A Document may only have one root node:
+ # http://yaml.org/spec/1.1/#id898031
+ def root
+ children.first
+ end
+ end
+ end
+end
diff --git a/lib/psych/nodes/mapping.rb b/lib/psych/nodes/mapping.rb
new file mode 100644
index 0000000..5ba95ce
--- /dev/null
+++ b/lib/psych/nodes/mapping.rb
@@ -0,0 +1,56 @@
+module Psych
+ module Nodes
+ ###
+ # This class represents a {YAML Mapping}[http://yaml.org/spec/1.1/#mapping].
+ #
+ # A Psych::Nodes::Mapping node may have 0 or more children, but must have
+ # an even number of children. Here are the valid children a
+ # Psych::Nodes::Mapping node may have:
+ #
+ # * Psych::Nodes::Sequence
+ # * Psych::Nodes::Mapping
+ # * Psych::Nodes::Scalar
+ # * Psych::Nodes::Alias
+ class Mapping < Psych::Nodes::Node
+ # Any Map Style
+ ANY = 0
+
+ # Block Map Style
+ BLOCK = 1
+
+ # Flow Map Style
+ FLOW = 2
+
+ # The optional anchor for this mapping
+ attr_accessor :anchor
+
+ # The optional tag for this mapping
+ attr_accessor :tag
+
+ # Is this an implicit mapping?
+ attr_accessor :implicit
+
+ # The style of this mapping
+ attr_accessor :style
+
+ ###
+ # Create a new Psych::Nodes::Mapping object.
+ #
+ # +anchor+ is the anchor associated with the map or +nil+.
+ # +tag+ is the tag associated with the map or +nil+.
+ # +implicit+ is a boolean indicating whether or not the map was implicitly
+ # started.
+ # +style+ is an integer indicating the mapping style.
+ #
+ # == See Also
+ # See also Psych::Handler#start_mapping
+ def initialize anchor = nil, tag = nil, implicit = true, style = BLOCK
+ super()
+ @anchor = anchor
+ @tag = tag
+ @implicit = implicit
+ @style = style
+ end
+ end
+ end
+end
diff --git a/lib/psych/nodes/node.rb b/lib/psych/nodes/node.rb
new file mode 100644
index 0000000..0de768c
--- /dev/null
+++ b/lib/psych/nodes/node.rb
@@ -0,0 +1,40 @@
+require 'stringio'
+
+module Psych
+ module Nodes
+ ###
+ # The base class for any Node in a YAML parse tree. This class should
+ # never be instantiated.
+ class Node
+ # The children of this node
+ attr_reader :children
+
+ # An associated tag
+ attr_reader :tag
+
+ # Create a new Psych::Nodes::Node
+ def initialize
+ @children = []
+ end
+
+ ###
+ # Convert this node to Ruby.
+ #
+ # See also Psych::Visitors::ToRuby
+ def to_ruby
+ Visitors::ToRuby.new.accept self
+ end
+ alias :transform :to_ruby
+
+ ###
+ # Convert this node to YAML.
+ #
+ # See also Psych::Visitors::Emitter
+ def to_yaml
+ io = StringIO.new
+ Visitors::Emitter.new(io).accept self
+ io.string
+ end
+ end
+ end
+end
diff --git a/lib/psych/nodes/scalar.rb b/lib/psych/nodes/scalar.rb
new file mode 100644
index 0000000..1b1b25b
--- /dev/null
+++ b/lib/psych/nodes/scalar.rb
@@ -0,0 +1,67 @@
+module Psych
+ module Nodes
+ ###
+ # This class represents a {YAML Scalar}[http://yaml.org/spec/1.1/#id858081].
+ #
+ # This node type is a terminal node and should not have any children.
+ class Scalar < Psych::Nodes::Node
+ # Any style scalar, the emitter chooses
+ ANY = 0
+
+ # Plain scalar style
+ PLAIN = 1
+
+ # Single quoted style
+ SINGLE_QUOTED = 2
+
+ # Double quoted style
+ DOUBLE_QUOTED = 3
+
+ # Literal style
+ LITERAL = 4
+
+ # Folded style
+ FOLDED = 5
+
+ # The scalar value
+ attr_accessor :value
+
+ # The anchor value (if there is one)
+ attr_accessor :anchor
+
+ # The tag value (if there is one)
+ attr_accessor :tag
+
+ # Is this a plain scalar?
+ attr_accessor :plain
+
+ # Is this scalar quoted?
+ attr_accessor :quoted
+
+ # The style of this scalar
+ attr_accessor :style
+
+ ###
+ # Create a new Psych::Nodes::Scalar object.
+ #
+ # +value+ is the string value of the scalar
+ # +anchor+ is an associated anchor or nil
+ # +tag+ is an associated tag or nil
+ # +plain+ is a boolean value
+ # +quoted+ is a boolean value
+ # +style+ is an integer idicating the string style
+ #
+ # == See Also
+ #
+ # See also Psych::Handler#scalar
+ def initialize value, anchor = nil, tag = nil, plain = true, quoted = false, style = ANY
+ @value = value
+ @anchor = anchor
+ @tag = tag
+ @plain = plain
+ @quoted = quoted
+ @style = style
+ end
+ end
+ end
+end
diff --git a/lib/psych/nodes/sequence.rb b/lib/psych/nodes/sequence.rb
new file mode 100644
index 0000000..e4b833d
--- /dev/null
+++ b/lib/psych/nodes/sequence.rb
@@ -0,0 +1,81 @@
+module Psych
+ module Nodes
+ ###
+ # This class represents a
+ # {YAML sequence}[http://yaml.org/spec/1.1/#sequence/syntax].
+ #
+ # A YAML sequence is basically a list, and looks like this:
+ #
+ # %YAML 1.1
+ # ---
+ # - I am
+ # - a Sequence
+ #
+ # A YAML sequence may have an anchor like this:
+ #
+ # %YAML 1.1
+ # ---
+ # &A [
+ # "This sequence",
+ # "has an anchor"
+ # ]
+ #
+ # A YAML sequence may also have a tag like this:
+ #
+ # %YAML 1.1
+ # ---
+ # !!seq [
+ # "This sequence",
+ # "has a tag"
+ # ]
+ #
+ # This class represents a sequence in a YAML document. A
+ # Psych::Nodes::Sequence node may have 0 or more children. Valid children
+ # for this node are:
+ #
+ # * Psych::Nodes::Sequence
+ # * Psych::Nodes::Mapping
+ # * Psych::Nodes::Scalar
+ # * Psych::Nodes::Alias
+ class Sequence < Psych::Nodes::Node
+ # Any Styles, emitter chooses
+ ANY = 0
+
+ # Block style sequence
+ BLOCK = 1
+
+ # Flow style sequence
+ FLOW = 2
+
+ # The anchor for this sequence (if any)
+ attr_accessor :anchor
+
+ # The tag name for this sequence (if any)
+ attr_accessor :tag
+
+ # Is this sequence started implicitly?
+ attr_accessor :implicit
+
+ # The sequece style used
+ attr_accessor :style
+
+ ###
+ # Create a new object representing a YAML sequence.
+ #
+ # +anchor+ is the anchor associated with the sequence or nil.
+ # +tag+ is the tag associated with the sequence or nil.
+ # +implicit+ a boolean indicating whether or not the sequence was
+ # implicitly started.
+ # +style+ is an integer indicating the list style.
+ #
+ # See Psych::Handler#start_sequence
+ def initialize anchor = nil, tag = nil, implicit = true, style = BLOCK
+ super()
+ @anchor = anchor
+ @tag = tag
+ @implicit = implicit
+ @style = style
+ end
+ end
+ end
+end
diff --git a/lib/psych/nodes/stream.rb b/lib/psych/nodes/stream.rb
new file mode 100644
index 0000000..f4aab5a
--- /dev/null
+++ b/lib/psych/nodes/stream.rb
@@ -0,0 +1,37 @@
+module Psych
+ module Nodes
+ ###
+ # Represents a YAML stream. This is the root node for any YAML parse
+ # tree. This node must have one or more child nodes. The only valid
+ # child node for a Psych::Nodes::Stream node is Psych::Nodes::Document.
+ class Stream < Psych::Nodes::Node
+
+ # Encodings supported by Psych (and libyaml)
+
+ # Any encoding
+ ANY = Psych::Parser::ANY
+
+ # UTF-8 encoding
+ UTF8 = Psych::Parser::UTF8
+
+ # UTF-16LE encoding
+ UTF16LE = Psych::Parser::UTF16LE
+
+ # UTF-16BE encoding
+ UTF16BE = Psych::Parser::UTF16BE
+
+ # The encoding used for this stream
+ attr_reader :encoding
+
+ ###
+ # Create a new Psych::Nodes::Stream node with an +encoding+ that
+ # defaults to Psych::Nodes::Stream::UTF8.
+ #
+ # See also Psych::Handler#start_stream
+ def initialize encoding = UTF8
+ super()
+ @encoding = encoding
+ end
+ end
+ end
+end
diff --git a/lib/psych/omap.rb b/lib/psych/omap.rb
new file mode 100644
index 0000000..6286270
--- /dev/null
+++ b/lib/psych/omap.rb
@@ -0,0 +1,4 @@
+module Psych
+ class Omap < ::Hash
+ end
+end
diff --git a/lib/psych/parser.rb b/lib/psych/parser.rb
new file mode 100644
index 0000000..0e38a4a
--- /dev/null
+++ b/lib/psych/parser.rb
@@ -0,0 +1,44 @@
+module Psych
+ ###
+ # YAML event parser class. This class parses a YAML document and calls
+ # events on the handler that is passed to the constructor. The events can
+ # be used for things such as constructing a YAML AST or deserializing YAML
+ # documents. It can even be fed back to Psych::Emitter to emit the same
+ # document that was parsed.
+ #
+ # See Psych::Handler for documentation on the events that Psych::Parser emits.
+ #
+ # Here is an example that prints out ever scalar found in a YAML document:
+ #
+ # # Handler for detecting scalar values
+ # class ScalarHandler < Psych::Handler
+ # def scalar value, anchor, tag, plain, quoted, style
+ # puts value
+ # end
+ # end
+ #
+ # parser = Psych::Parser.new(ScalarHandler.new)
+ # parser.parse(yaml_document)
+ #
+ # Here is an example that feeds the parser back in to Psych::Emitter. The
+ # YAML document is read from STDIN and written back out to STDERR:
+ #
+ # parser = Psych::Parser.new(Psych::Emitter.new($stderr))
+ # parser.parse($stdin)
+ #
+ # Psych uses Psych::Parser in combination with Psych::TreeBuilder to
+ # construct an AST of the parsed YAML document.
+
+ class Parser
+ # The handler on which events will be called
+ attr_accessor :handler
+
+ ###
+ # Creates a new Psych::Parser instance with +handler+. YAML events will
+ # be called on +handler+. See Psych::Parser for more details.
+
+ def initialize handler = Handler.new
+ @handler = handler
+ end
+ end
+end
diff --git a/lib/psych/scalar_scanner.rb b/lib/psych/scalar_scanner.rb
new file mode 100644
index 0000000..bee88de
--- /dev/null
+++ b/lib/psych/scalar_scanner.rb
@@ -0,0 +1,90 @@
+require 'strscan'
+
+module Psych
+ ###
+ # Scan scalars for built in types
+ class ScalarScanner
+ # Taken from http://yaml.org/type/timestamp.html
+ TIME = /^\d{4}-\d{1,2}-\d{1,2}([Tt]|\s+)\d{1,2}:\d\d:\d\d(\.\d*)?(\s*Z|[-+]\d{1,2}(:\d\d)?)?/
+
+ # Create a new scanner
+ def initialize
+ @string_cache = {}
+ end
+
+ # Tokenize +string+ returning the ruby object
+ def tokenize string
+ return nil if string.empty?
+ return string if @string_cache.key?(string)
+
+ case string
+ when /^[A-Za-z~]/
+ if string.length > 5
+ @string_cache[string] = true
+ return string
+ end
+
+ case string
+ when /^[^ytonf~]/i
+ @string_cache[string] = true
+ string
+ when '~', /^null$/i
+ nil
+ when /^(yes|true|on)$/i
+ true
+ when /^(no|false|off)$/i
+ false
+ else
+ @string_cache[string] = true
+ string
+ end
+ when TIME
+ date, time = *(string.split(/[ tT]/, 2))
+ (yy, m, dd) = date.split('-').map { |x| x.to_i }
+ md = time.match(/(\d+:\d+:\d+)(\.\d*)?\s*(Z|[-+]\d+(:\d\d)?)?/)
+
+ (hh, mm, ss) = md[1].split(':').map { |x| x.to_i }
+ us = (md[2] ? Rational(md[2].sub(/^\./, '0.')) : 0) * 1000000
+
+ time = Time.utc(yy, m, dd, hh, mm, ss, us)
+
+ return time if 'Z' == md[3]
+
+ tz = md[3] ? Integer(md[3].split(':').first.sub(/([-+])0/, '\1')) : 0
+ Time.at((time - (tz * 3600)).to_i, us)
+ when /^\d{4}-\d{1,2}-\d{1,2}$/
+ require 'date'
+ Date.strptime(string, '%Y-%m-%d')
+ when /^\.inf$/i
+ 1 / 0.0
+ when /^-\.inf$/i
+ -1 / 0.0
+ when /^\.nan$/i
+ 0.0 / 0.0
+ when /^:./
+ if string =~ /^:(["'])(.*)\1/
+ $2.sub(/^:/, '').to_sym
+ else
+ string.sub(/^:/, '').to_sym
+ end
+ when /^[-+]?[1-9][0-9_]*(:[0-5]?[0-9])+$/
+ i = 0
+ string.split(':').each_with_index do |n,e|
+ i += (n.to_i * 60 ** (e - 2).abs)
+ end
+ i
+ when /^[-+]?[0-9][0-9_]*(:[0-5]?[0-9])+\.[0-9_]*$/
+ i = 0
+ string.split(':').each_with_index do |n,e|
+ i += (n.to_f * 60 ** (e - 2).abs)
+ end
+ i
+ else
+ return Integer(string.gsub(/[,_]/, '')) rescue ArgumentError
+ return Float(string.gsub(/[,_]/, '')) rescue ArgumentError
+ @string_cache[string] = true
+ string
+ end
+ end
+ end
+end
diff --git a/lib/psych/set.rb b/lib/psych/set.rb
new file mode 100644
index 0000000..6793a8e
--- /dev/null
+++ b/lib/psych/set.rb
@@ -0,0 +1,4 @@
+module Psych
+ class Set < ::Hash
+ end
+end
diff --git a/lib/psych/tree_builder.rb b/lib/psych/tree_builder.rb
new file mode 100644
index 0000000..6437a73
--- /dev/null
+++ b/lib/psych/tree_builder.rb
@@ -0,0 +1,89 @@
+require 'psych/handler'
+
+module Psych
+ ###
+ # This class works in conjunction with Psych::Parser to build an in-memory
+ # parse tree tree that represents a YAML document.
+ #
+ # == Example
+ #
+ # parser = Psych::Parser.new Psych::TreeBuilder.new
+ # parser.parse('--- foo')
+ # tree = parser.handler.root
+ #
+ # See Psych::Handler for documentation on the event methods used in this
+ # class.
+ class TreeBuilder < Psych::Handler
+ # Create a new TreeBuilder instance
+ def initialize
+ @stack = []
+ @last = nil
+ end
+
+ # Returns the root node for the built tree
+ def root
+ @stack.first
+ end
+
+ %w{
+ Sequence
+ Mapping
+ }.each do |node|
+ class_eval %{
+ def start_#{node.downcase}(anchor, tag, implicit, style)
+ n = Nodes::#{node}.new(anchor, tag, implicit, style)
+ @last.children << n
+ push n
+ end
+
+ def end_#{node.downcase}
+ pop
+ end
+ }
+ end
+
+ ###
+ # Handles start_document events with +version+, +tag_directives+,
+ # and +implicit+ styling.
+ #
+ # See Psych::Handler#start_document
+ def start_document version, tag_directives, implicit
+ n = Nodes::Document.new(version, tag_directives, implicit)
+ @last.children << n
+ push n
+ end
+
+ ###
+ # Handles end_document events with +version+, +tag_directives+,
+ # and +implicit+ styling.
+ #
+ # See Psych::Handler#start_document
+ def end_document implicit_end
+ @last.implicit_end = implicit_end
+ pop
+ end
+
+ def start_stream encoding
+ push Nodes::Stream.new(encoding)
+ end
+
+ def scalar value, anchor, tag, plain, quoted, style
+ @last.children << Nodes::Scalar.new(value,anchor,tag,plain,quoted,style)
+ end
+
+ def alias anchor
+ @last.children << Nodes::Alias.new(anchor)
+ end
+
+ private
+ def push value
+ @stack.push value
+ @last = value
+ end
+
+ def pop
+ @stack.pop
+ @last = @stack.last
+ end
+ end
+end
diff --git a/lib/psych/visitors.rb b/lib/psych/visitors.rb
new file mode 100644
index 0000000..10ac4ce
--- /dev/null
+++ b/lib/psych/visitors.rb
@@ -0,0 +1,5 @@
+require 'psych/visitors/visitor'
+require 'psych/visitors/to_ruby'
+require 'psych/visitors/emitter'
+require 'psych/visitors/yaml_tree'
+require 'psych/visitors/json_tree'
diff --git a/lib/psych/visitors/emitter.rb b/lib/psych/visitors/emitter.rb
new file mode 100644
index 0000000..0768fbb
--- /dev/null
+++ b/lib/psych/visitors/emitter.rb
@@ -0,0 +1,41 @@
+module Psych
+ module Visitors
+ class Emitter < Psych::Visitors::Visitor
+ def initialize io
+ @handler = Psych::Emitter.new io
+ end
+
+ def visit_Psych_Nodes_Stream o
+ @handler.start_stream o.encoding
+ o.children.each { |c| accept c }
+ @handler.end_stream
+ end
+
+ def visit_Psych_Nodes_Document o
+ @handler.start_document o.version, o.tag_directives, o.implicit
+ o.children.each { |c| accept c }
+ @handler.end_document o.implicit_end
+ end
+
+ def visit_Psych_Nodes_Scalar o
+ @handler.scalar o.value, o.anchor, o.tag, o.plain, o.quoted, o.style
+ end
+
+ def visit_Psych_Nodes_Sequence o
+ @handler.start_sequence o.anchor, o.tag, o.implicit, o.style
+ o.children.each { |c| accept c }
+ @handler.end_sequence
+ end
+
+ def visit_Psych_Nodes_Mapping o
+ @handler.start_mapping o.anchor, o.tag, o.implicit, o.style
+ o.children.each { |c| accept c }
+ @handler.end_mapping
+ end
+
+ def visit_Psych_Nodes_Alias o
+ @handler.alias o.anchor
+ end
+ end
+ end
+end
diff --git a/lib/psych/visitors/json_tree.rb b/lib/psych/visitors/json_tree.rb
new file mode 100644
index 0000000..0440dc7
--- /dev/null
+++ b/lib/psych/visitors/json_tree.rb
@@ -0,0 +1,37 @@
+module Psych
+ module Visitors
+ class JSONTree < YAMLTree
+ def visit_Symbol o
+ append create_scalar o.to_s
+ end
+
+ def visit_NilClass o
+ scalar = Nodes::Scalar.new(
+ 'null', nil, nil, true, false, Nodes::Scalar::PLAIN)
+ append scalar
+ end
+
+ private
+ def create_document
+ doc = super
+ doc.implicit = true
+ doc.implicit_end = true
+ doc
+ end
+
+ def create_mapping
+ map = super
+ map.style = Nodes::Mapping::FLOW
+ map
+ end
+
+ def create_scalar value, anchor = nil, tag = nil, plain = false, quoted = true, style = Nodes::Scalar::ANY
+ super(value, anchor, tag, false, true, style)
+ end
+
+ def create_sequence anchor = nil, tag = nil, implicit = true, style = Nodes::Sequence::FLOW
+ super
+ end
+ end
+ end
+end
diff --git a/lib/psych/visitors/to_ruby.rb b/lib/psych/visitors/to_ruby.rb
new file mode 100644
index 0000000..2790cde
--- /dev/null
+++ b/lib/psych/visitors/to_ruby.rb
@@ -0,0 +1,252 @@
+require 'psych/scalar_scanner'
+
+module Psych
+ module Visitors
+ ###
+ # This class walks a YAML AST, converting each node to ruby
+ class ToRuby < Psych::Visitors::Visitor
+ def initialize
+ super
+ @st = {}
+ @ss = ScalarScanner.new
+ @domain_types = Psych.domain_types
+ end
+
+ def accept target
+ result = super
+ return result if @domain_types.empty? || !target.tag
+
+ short_name = target.tag.sub(/^!/, '').split('/', 2).last
+ if Psych.domain_types.key? short_name
+ url, block = Psych.domain_types[short_name]
+ return block.call "#{url}:#{short_name}", result
+ end
+
+ result
+ end
+
+ def visit_Psych_Nodes_Scalar o
+ @st[o.anchor] = o.value if o.anchor
+
+ if klass = Psych.load_tags[o.tag]
+ instance = klass.allocate
+
+ if instance.respond_to?(:init_with)
+ coder = Psych::Coder.new(o.tag)
+ coder.scalar = o.value
+ instance.init_with coder
+ end
+
+ return instance
+ end
+
+ return o.value if o.quoted
+ return @ss.tokenize(o.value) unless o.tag
+
+ case o.tag
+ when '!binary', 'tag:yaml.org,2002:binary'
+ o.value.unpack('m').first
+ when '!str', 'tag:yaml.org,2002:str'
+ o.value
+ when "!ruby/object:Complex"
+ Complex(o.value)
+ when "!ruby/object:Rational"
+ Rational(o.value)
+ when "tag:yaml.org,2002:float", "!float"
+ Float(@ss.tokenize(o.value))
+ when "!ruby/regexp"
+ o.value =~ /^\/(.*)\/([mix]*)$/
+ source = $1
+ options = 0
+ lang = nil
+ ($2 || '').split('').each do |option|
+ case option
+ when 'x' then options |= Regexp::EXTENDED
+ when 'i' then options |= Regexp::IGNORECASE
+ when 'm' then options |= Regexp::MULTILINE
+ else lang = option
+ end
+ end
+ Regexp.new(*[source, options, lang].compact)
+ when "!ruby/range"
+ args = o.value.split(/([.]{2,3})/, 2).map { |s|
+ accept Nodes::Scalar.new(s)
+ }
+ args.push(args.delete_at(1) == '...')
+ Range.new(*args)
+ when /^!ruby\/sym(bol)?:?(.*)?$/
+ o.value.to_sym
+ else
+ @ss.tokenize o.value
+ end
+ end
+
+ def visit_Psych_Nodes_Sequence o
+ if klass = Psych.load_tags[o.tag]
+ instance = klass.allocate
+
+ if instance.respond_to?(:init_with)
+ coder = Psych::Coder.new(o.tag)
+ coder.seq = o.children.map { |c| accept c }
+ instance.init_with coder
+ end
+
+ return instance
+ end
+
+ case o.tag
+ when '!omap', 'tag:yaml.org,2002:omap'
+ map = Psych::Omap.new
+ @st[o.anchor] = map if o.anchor
+ o.children.each { |a|
+ map[accept(a.children.first)] = accept a.children.last
+ }
+ map
+ else
+ list = []
+ @st[o.anchor] = list if o.anchor
+ o.children.each { |c| list.push accept c }
+ list
+ end
+ end
+
+ def visit_Psych_Nodes_Mapping o
+ return revive(Psych.load_tags[o.tag], o) if Psych.load_tags[o.tag]
+
+ case o.tag
+ when '!str', 'tag:yaml.org,2002:str'
+ members = Hash[*o.children.map { |c| accept c }]
+ string = members.delete 'str'
+ init_with(string, members.map { |k,v| [k.to_s.sub(/^@/, ''),v] }, o)
+ when /^!ruby\/struct:?(.*)?$/
+ klass = resolve_class($1)
+
+ if klass
+ s = klass.allocate
+ @st[o.anchor] = s if o.anchor
+
+ members = {}
+ struct_members = s.members.map { |x| x.to_sym }
+ o.children.each_slice(2) do |k,v|
+ member = accept(k)
+ value = accept(v)
+ if struct_members.include?(member.to_sym)
+ s.send("#{member}=", value)
+ else
+ members[member.to_s.sub(/^@/, '')] = value
+ end
+ end
+ init_with(s, members, o)
+ else
+ members = o.children.map { |c| accept c }
+ h = Hash[*members]
+ Struct.new(*h.map { |k,v| k.to_sym }).new(*h.map { |k,v| v })
+ end
+
+ when '!ruby/range'
+ h = Hash[*o.children.map { |c| accept c }]
+ Range.new(h['begin'], h['end'], h['excl'])
+
+ when /^!ruby\/exception:?(.*)?$/
+ h = Hash[*o.children.map { |c| accept c }]
+
+ e = build_exception((resolve_class($1) || Exception),
+ h.delete('message'))
+ init_with(e, h, o)
+
+ when '!set', 'tag:yaml.org,2002:set'
+ set = Psych::Set.new
+ @st[o.anchor] = set if o.anchor
+ o.children.each_slice(2) do |k,v|
+ set[accept(k)] = accept(v)
+ end
+ set
+
+ when '!ruby/object:Complex'
+ h = Hash[*o.children.map { |c| accept c }]
+ Complex(h['real'], h['image'])
+
+ when '!ruby/object:Rational'
+ h = Hash[*o.children.map { |c| accept c }]
+ Rational(h['numerator'], h['denominator'])
+
+ when /^!ruby\/object:?(.*)?$/
+ name = $1 || 'Object'
+ obj = revive((resolve_class(name) || Object), o)
+ @st[o.anchor] = obj if o.anchor
+ obj
+ else
+ hash = {}
+ @st[o.anchor] = hash if o.anchor
+
+ o.children.each_slice(2) { |k,v|
+ key = accept(k)
+
+ if key == '<<' && Nodes::Alias === v
+ # FIXME: remove this when "<<" syntax is deprecated
+ if $VERBOSE
+ where = caller.find { |x| x !~ /psych/ }
+ warn where
+ warn "\"<<: *#{v.anchor}\" is no longer supported, please switch to \"*#{v.anchor}\""
+ end
+ return accept(v)
+ else
+ hash[key] = accept(v)
+ end
+
+ }
+ hash
+ end
+ end
+
+ def visit_Psych_Nodes_Document o
+ accept o.root
+ end
+
+ def visit_Psych_Nodes_Stream o
+ o.children.map { |c| accept c }
+ end
+
+ def visit_Psych_Nodes_Alias o
+ @st[o.anchor]
+ end
+
+ private
+ def revive klass, node
+ s = klass.allocate
+ h = Hash[*node.children.map { |c| accept c }]
+ init_with(s, h, node)
+ end
+
+ def init_with o, h, node
+ if o.respond_to?(:init_with)
+ c = Psych::Coder.new(node.tag)
+ c.map = h
+ o.init_with c
+ else
+ h.each { |k,v| o.instance_variable_set(:"@#{k}", v) }
+ end
+ o
+ end
+
+ # Convert +klassname+ to a Class
+ def resolve_class klassname
+ return nil unless klassname and not klassname.empty?
+
+ name = klassname
+ retried = false
+
+ begin
+ path2class(name)
+ rescue ArgumentError => ex
+ name = "Struct::#{name}"
+ unless retried
+ retried = true
+ retry
+ end
+ raise ex
+ end
+ end
+ end
+ end
+end
diff --git a/lib/psych/visitors/visitor.rb b/lib/psych/visitors/visitor.rb
new file mode 100644
index 0000000..ccd8c3b
--- /dev/null
+++ b/lib/psych/visitors/visitor.rb
@@ -0,0 +1,18 @@
+module Psych
+ module Visitors
+ class Visitor
+ def accept target
+ case target
+ when Psych::Nodes::Scalar then visit_Psych_Nodes_Scalar target
+ when Psych::Nodes::Mapping then visit_Psych_Nodes_Mapping target
+ when Psych::Nodes::Sequence then visit_Psych_Nodes_Sequence target
+ when Psych::Nodes::Alias then visit_Psych_Nodes_Alias target
+ when Psych::Nodes::Document then visit_Psych_Nodes_Document target
+ when Psych::Nodes::Stream then visit_Psych_Nodes_Stream target
+ else
+ raise "Can't handle #{target}"
+ end
+ end
+ end
+ end
+end
diff --git a/lib/psych/visitors/yaml_tree.rb b/lib/psych/visitors/yaml_tree.rb
new file mode 100644
index 0000000..e1e89a0
--- /dev/null
+++ b/lib/psych/visitors/yaml_tree.rb
@@ -0,0 +1,312 @@
+module Psych
+ module Visitors
+ class YAMLTree < Psych::Visitors::Visitor
+ attr_reader :tree
+
+ def initialize options = {}
+ super()
+ @json = options[:json]
+ @tree = Nodes::Stream.new
+ @stack = []
+ @st = {}
+ @ss = ScalarScanner.new
+
+ @dispatch_cache = Hash.new do |h,klass|
+ method = "visit_#{(klass.name || '').split('::').join('_')}"
+
+ method = respond_to?(method) ? method : h[klass.superclass]
+
+ raise(TypeError, "Can't dump #{target.class}") unless method
+
+ h[klass] = method
+ end
+ end
+
+ def << object
+ doc = create_document
+ @stack << doc
+ @tree.children << doc
+ accept object
+ end
+
+ def accept target
+ # return any aliases we find
+ if node = @st[target.object_id]
+ node.anchor = target.object_id.to_s
+ return append Nodes::Alias.new target.object_id.to_s
+ end
+
+ if target.respond_to?(:encode_with)
+ dump_coder target
+ else
+ send(@dispatch_cache[target.class], target)
+ end
+ end
+
+ def visit_Psych_Omap o
+ seq = Nodes::Sequence.new(nil, '!omap', false)
+ register(o, seq)
+
+ @stack.push append seq
+ o.each { |k,v| visit_Hash k => v }
+ @stack.pop
+ end
+
+ def visit_Object o
+ tag = Psych.dump_tags[o.class]
+ unless tag
+ klass = o.class == Object ? nil : o.class.name
+ tag = ['!ruby/object', klass].compact.join(':')
+ end
+
+ map = append Nodes::Mapping.new(nil, tag, false)
+ register(o, map)
+
+ @stack.push map
+ dump_ivars(o, map)
+ @stack.pop
+ end
+
+ def visit_Struct o
+ tag = ['!ruby/struct', o.class.name].compact.join(':')
+
+ map = register(o, Nodes::Mapping.new(nil, tag, false))
+
+ @stack.push append map
+
+ o.members.each do |member|
+ map.children << Nodes::Scalar.new("#{member}")
+ accept o[member]
+ end
+
+ dump_ivars(o, map)
+
+ @stack.pop
+ end
+
+ def visit_Exception o
+ tag = ['!ruby/exception', o.class.name].join ':'
+
+ map = append Nodes::Mapping.new(nil, tag, false)
+
+ @stack.push map
+
+ {
+ 'message' => private_iv_get(o, 'mesg'),
+ 'backtrace' => private_iv_get(o, 'backtrace'),
+ }.each do |k,v|
+ next unless v
+ map.children << Nodes::Scalar.new(k)
+ accept v
+ end
+
+ dump_ivars(o, map)
+
+ @stack.pop
+ end
+
+ def visit_Regexp o
+ append Nodes::Scalar.new(o.inspect, nil, '!ruby/regexp', false)
+ end
+
+ def visit_Time o
+ formatted = o.strftime("%Y-%m-%d %H:%M:%S")
+ if o.utc?
+ formatted += ".%06dZ" % [o.usec]
+ else
+ formatted += ".%06d %+.2d:00" % [o.usec, o.gmt_offset / 3600]
+ end
+
+ append Nodes::Scalar.new formatted
+ end
+
+ def visit_Rational o
+ map = append Nodes::Mapping.new(nil, '!ruby/object:Rational', false)
+ [
+ 'denominator', o.denominator.to_s,
+ 'numerator', o.numerator.to_s
+ ].each do |m|
+ map.children << Nodes::Scalar.new(m)
+ end
+ end
+
+ def visit_Complex o
+ map = append Nodes::Mapping.new(nil, '!ruby/object:Complex', false)
+
+ ['real', o.real.to_s, 'image', o.imag.to_s].each do |m|
+ map.children << Nodes::Scalar.new(m)
+ end
+ end
+
+ def visit_Integer o
+ append Nodes::Scalar.new o.to_s
+ end
+ alias :visit_TrueClass :visit_Integer
+ alias :visit_FalseClass :visit_Integer
+ alias :visit_Date :visit_Integer
+
+ def visit_Float o
+ if o.nan?
+ append Nodes::Scalar.new '.nan'
+ elsif o.infinite?
+ append Nodes::Scalar.new(o.infinite? > 0 ? '.inf' : '-.inf')
+ else
+ append Nodes::Scalar.new o.to_s
+ end
+ end
+
+ def visit_String o
+ plain = false
+ quote = false
+
+ if o.index("\x00") || o.count("^ -~\t\r\n").fdiv(o.length) > 0.3
+ str = [o].pack('m').chomp
+ tag = '!binary'
+ else
+ str = o
+ tag = nil
+ quote = !(String === @ss.tokenize(o))
+ plain = !quote
+ end
+
+ ivars = o.respond_to?(:to_yaml_properties) ?
+ o.to_yaml_properties :
+ o.instance_variables
+
+ scalar = create_scalar str, nil, tag, plain, quote
+
+ if ivars.empty?
+ append scalar
+ else
+ mapping = append Nodes::Mapping.new(nil, '!str', false)
+
+ mapping.children << Nodes::Scalar.new('str')
+ mapping.children << scalar
+
+ @stack.push mapping
+ dump_ivars o, mapping
+ @stack.pop
+ end
+ end
+
+ def visit_Class o
+ raise TypeError, "can't dump anonymous class #{o.class}"
+ end
+
+ def visit_Range o
+ @stack.push append Nodes::Mapping.new(nil, '!ruby/range', false)
+ ['begin', o.begin, 'end', o.end, 'excl', o.exclude_end?].each do |m|
+ accept m
+ end
+ @stack.pop
+ end
+
+ def visit_Hash o
+ @stack.push append register(o, create_mapping)
+
+ o.each do |k,v|
+ accept k
+ accept v
+ end
+
+ @stack.pop
+ end
+
+ def visit_Psych_Set o
+ @stack.push append register(o, Nodes::Mapping.new(nil, '!set', false))
+
+ o.each do |k,v|
+ accept k
+ accept v
+ end
+
+ @stack.pop
+ end
+
+ def visit_Array o
+ @stack.push append register(o, create_sequence)
+ o.each { |c| accept c }
+ @stack.pop
+ end
+
+ def visit_NilClass o
+ append Nodes::Scalar.new('', nil, 'tag:yaml.org,2002:null', false)
+ end
+
+ def visit_Symbol o
+ append create_scalar ":#{o}"
+ end
+
+ private
+ def append o
+ @stack.last.children << o
+ o
+ end
+
+ def register target, yaml_obj
+ @st[target.object_id] = yaml_obj
+ yaml_obj
+ end
+
+ def dump_coder o
+ tag = Psych.dump_tags[o.class]
+ unless tag
+ klass = o.class == Object ? nil : o.class.name
+ tag = ['!ruby/object', klass].compact.join(':')
+ end
+
+ c = Psych::Coder.new(tag)
+ o.encode_with(c)
+ emit_coder c
+ end
+
+ def emit_coder c
+ case c.type
+ when :scalar
+ append create_scalar(c.scalar, nil, c.tag, c.tag.nil?)
+ when :seq
+ @stack.push append create_sequence(nil, c.tag, c.tag.nil?)
+ c.seq.each do |thing|
+ accept thing
+ end
+ @stack.pop
+ when :map
+ map = append Nodes::Mapping.new(nil, c.tag, c.implicit, c.style)
+ @stack.push map
+ c.map.each do |k,v|
+ map.children << create_scalar(k)
+ accept v
+ end
+ @stack.pop
+ end
+ end
+
+ def dump_ivars target, map
+ ivars = target.respond_to?(:to_yaml_properties) ?
+ target.to_yaml_properties :
+ target.instance_variables
+
+ ivars.each do |iv|
+ map.children << create_scalar("#{iv.to_s.sub(/^@/, '')}")
+ accept target.instance_variable_get(iv)
+ end
+ end
+
+ def create_document
+ Nodes::Document.new
+ end
+
+ def create_mapping
+ Nodes::Mapping.new
+ end
+
+ def create_scalar value, anchor = nil, tag = nil, plain = true, quoted = false, style = Nodes::Scalar::ANY
+ Nodes::Scalar.new(value, anchor, tag, plain, quoted, style)
+ end
+
+ def create_sequence anchor = nil, tag = nil, implicit = true, style = Nodes::Sequence::BLOCK
+ Nodes::Sequence.new(anchor, tag, implicit, style)
+ end
+ end
+ end
+end
diff --git a/test/psych/helper.rb b/test/psych/helper.rb
new file mode 100644
index 0000000..61049d6
--- /dev/null
+++ b/test/psych/helper.rb
@@ -0,0 +1,63 @@
+require 'minitest/autorun'
+require 'stringio'
+require 'tempfile'
+require 'date'
+
+module Psych
+ class TestCase < MiniTest::Unit::TestCase
+ #
+ # Convert between Psych and the object to verify correct parsing and
+ # emitting
+ #
+ def assert_to_yaml( obj, yaml )
+ assert_equal( obj, Psych::load( yaml ) )
+ assert_equal( obj, Psych::parse( yaml ).transform )
+ assert_equal( obj, Psych::load( obj.psych_to_yaml ) )
+ assert_equal( obj, Psych::parse( obj.psych_to_yaml ).transform )
+ assert_equal( obj, Psych::load(
+ obj.psych_to_yaml(
+ :UseVersion => true, :UseHeader => true, :SortKeys => true
+ )
+ ))
+ end
+
+ #
+ # Test parser only
+ #
+ def assert_parse_only( obj, yaml )
+ assert_equal( obj, Psych::load( yaml ) )
+ assert_equal( obj, Psych::parse( yaml ).transform )
+ end
+
+ def assert_cycle( obj )
+ v = Visitors::YAMLTree.new
+ v << obj
+ assert_equal(obj, Psych.load(v.tree.to_yaml))
+ assert_equal( obj, Psych::load(Psych.dump(obj)))
+ assert_equal( obj, Psych::load( obj.psych_to_yaml ) )
+ end
+
+ #
+ # Make a time with the time zone
+ #
+ def mktime( year, mon, day, hour, min, sec, usec, zone = "Z" )
+ usec = Rational(usec.to_s) * 1000000
+ val = Time::utc( year.to_i, mon.to_i, day.to_i, hour.to_i, min.to_i, sec.to_i, usec )
+ if zone != "Z"
+ hour = zone[0,3].to_i * 3600
+ min = zone[3,2].to_i * 60
+ ofs = (hour + min)
+ val = Time.at( val.tv_sec - ofs, val.tv_nsec / 1000.0 )
+ end
+ return val
+ end
+ end
+end
+
+require 'psych'
+
+# FIXME: remove this when syck is removed
+o = Object.new
+a = o.method(:psych_to_yaml)
+b = o.method(:to_yaml)
+raise "psych should define to_yaml" unless a == b
diff --git a/test/psych/test_alias_and_anchor.rb b/test/psych/test_alias_and_anchor.rb
new file mode 100644
index 0000000..74660a4
--- /dev/null
+++ b/test/psych/test_alias_and_anchor.rb
@@ -0,0 +1,26 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestAliasAndAnchor < TestCase
+ def test_mri_compatibility
+ yaml = <<EOYAML
+---
+- &id001 !ruby/object {}
+
+- *id001
+- *id001
+EOYAML
+ result = Psych.load yaml
+ result.each {|el| assert_same(result[0], el) }
+ end
+
+ def test_anchor_alias_round_trip
+ o = Object.new
+ original = [o,o,o]
+
+ yaml = Psych.dump original
+ result = Psych.load yaml
+ result.each {|el| assert_same(result[0], el) }
+ end
+ end
+end
diff --git a/test/psych/test_array.rb b/test/psych/test_array.rb
new file mode 100644
index 0000000..5686ab9
--- /dev/null
+++ b/test/psych/test_array.rb
@@ -0,0 +1,19 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestArray < TestCase
+ def setup
+ super
+ @list = [{ :a => 'b' }, 'foo']
+ end
+
+ def test_self_referential
+ @list << @list
+ assert_cycle(@list)
+ end
+
+ def test_cycle
+ assert_cycle(@list)
+ end
+ end
+end
diff --git a/test/psych/test_boolean.rb b/test/psych/test_boolean.rb
new file mode 100644
index 0000000..09f780b
--- /dev/null
+++ b/test/psych/test_boolean.rb
@@ -0,0 +1,36 @@
+require 'test/psych/helper'
+
+module Psych
+ ###
+ # Test booleans from YAML spec:
+ # http://yaml.org/type/bool.html
+ class TestBoolean < TestCase
+ %w{ yes Yes YES true True TRUE on On ON }.each do |truth|
+ define_method(:"test_#{truth}") do
+ assert_equal true, Psych.load("--- #{truth}")
+ end
+ end
+
+ %w{ no No NO false False FALSE off Off OFF }.each do |truth|
+ define_method(:"test_#{truth}") do
+ assert_equal false, Psych.load("--- #{truth}")
+ end
+ end
+
+ ###
+ # YAML spec says "y" and "Y" may be used as true, but Syck treats them
+ # as literal strings
+ def test_y
+ assert_equal "y", Psych.load("--- y")
+ assert_equal "Y", Psych.load("--- Y")
+ end
+
+ ###
+ # YAML spec says "n" and "N" may be used as false, but Syck treats them
+ # as literal strings
+ def test_n
+ assert_equal "n", Psych.load("--- n")
+ assert_equal "N", Psych.load("--- N")
+ end
+ end
+end
diff --git a/test/psych/test_class.rb b/test/psych/test_class.rb
new file mode 100644
index 0000000..02c4c1e
--- /dev/null
+++ b/test/psych/test_class.rb
@@ -0,0 +1,17 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestClass < TestCase
+ def test_cycle
+ assert_raises(::TypeError) do
+ assert_cycle(TestClass)
+ end
+ end
+
+ def test_dump
+ assert_raises(::TypeError) do
+ Psych.dump TestClass
+ end
+ end
+ end
+end
diff --git a/test/psych/test_coder.rb b/test/psych/test_coder.rb
new file mode 100644
index 0000000..ba00809
--- /dev/null
+++ b/test/psych/test_coder.rb
@@ -0,0 +1,144 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestCoder < TestCase
+ class InitApi
+ attr_accessor :implicit
+ attr_accessor :style
+ attr_accessor :tag
+ attr_accessor :a, :b, :c
+
+ def initialize
+ @a = 1
+ @b = 2
+ @c = 3
+ end
+
+ def init_with coder
+ @a = coder['aa']
+ @b = coder['bb']
+ @implicit = coder.implicit
+ @tag = coder.tag
+ @style = coder.style
+ end
+
+ def encode_with coder
+ coder['aa'] = @a
+ coder['bb'] = @b
+ end
+ end
+
+ class TaggingCoder < InitApi
+ def encode_with coder
+ super
+ coder.tag = coder.tag.sub(/!/, '!hello')
+ coder.implicit = false
+ coder.style = Psych::Nodes::Mapping::FLOW
+ end
+ end
+
+ class ScalarCoder
+ def encode_with coder
+ coder.scalar = "foo"
+ end
+ end
+
+ class Represent
+ yaml_tag 'foo'
+ def encode_with coder
+ coder.represent_scalar 'foo', 'bar'
+ end
+ end
+
+ class RepresentWithInit
+ yaml_tag name
+ attr_accessor :str
+
+ def init_with coder
+ @str = coder.scalar
+ end
+
+ def encode_with coder
+ coder.represent_scalar self.class.name, 'bar'
+ end
+ end
+
+ class RepresentWithSeq
+ yaml_tag name
+ attr_accessor :seq
+
+ def init_with coder
+ @seq = coder.seq
+ end
+
+ def encode_with coder
+ coder.represent_seq self.class.name, %w{ foo bar }
+ end
+ end
+
+ class RepresentWithMap
+ yaml_tag name
+ attr_accessor :map
+
+ def init_with coder
+ @map = coder.map
+ end
+
+ def encode_with coder
+ coder.represent_map self.class.name, { 'a' => 'b' }
+ end
+ end
+
+ def test_represent_map
+ thing = Psych.load(Psych.dump(RepresentWithMap.new))
+ assert_equal({ 'a' => 'b' }, thing.map)
+ end
+
+ def test_represent_sequence
+ thing = Psych.load(Psych.dump(RepresentWithSeq.new))
+ assert_equal %w{ foo bar }, thing.seq
+ end
+
+ def test_represent_with_init
+ thing = Psych.load(Psych.dump(RepresentWithInit.new))
+ assert_equal 'bar', thing.str
+ end
+
+ def test_represent!
+ assert_match(/foo/, Psych.dump(Represent.new))
+ assert_instance_of(Represent, Psych.load(Psych.dump(Represent.new)))
+ end
+
+ def test_scalar_coder
+ foo = Psych.load(Psych.dump(ScalarCoder.new))
+ assert_equal 'foo', foo
+ end
+
+ def test_load_dumped_tagging
+ foo = InitApi.new
+ bar = Psych.load(Psych.dump(foo))
+ assert_equal false, bar.implicit
+ assert_equal "!ruby/object:Psych::TestCoder::InitApi", bar.tag
+ assert_equal Psych::Nodes::Mapping::BLOCK, bar.style
+ end
+
+ def test_dump_with_tag
+ foo = TaggingCoder.new
+ assert_match(/hello/, Psych.dump(foo))
+ assert_match(/\{aa/, Psych.dump(foo))
+ end
+
+ def test_dump_encode_with
+ foo = InitApi.new
+ assert_match(/aa/, Psych.dump(foo))
+ end
+
+ def test_dump_init_with
+ foo = InitApi.new
+ bar = Psych.load(Psych.dump(foo))
+ assert_equal foo.a, bar.a
+ assert_equal foo.b, bar.b
+ assert_nil bar.c
+ end
+ end
+end
diff --git a/test/psych/test_document.rb b/test/psych/test_document.rb
new file mode 100644
index 0000000..e5ef00c
--- /dev/null
+++ b/test/psych/test_document.rb
@@ -0,0 +1,46 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestDocument < TestCase
+ def setup
+ super
+ @stream = Psych.parse_stream(<<-eoyml)
+%YAML 1.1
+%TAG ! tag:tenderlovemaking.com,2009:
+--- !fun
+ eoyml
+ @doc = @stream.children.first
+ end
+
+ def test_parse_tag
+ assert_equal([['!', 'tag:tenderlovemaking.com,2009:']],
+ @doc.tag_directives)
+ end
+
+ def test_emit_tag
+ assert_match('%TAG ! tag:tenderlovemaking.com,2009:', @stream.to_yaml)
+ end
+
+ def test_emit_multitag
+ @doc.tag_directives << ['!!', 'foo.com,2009:']
+ yaml = @stream.to_yaml
+ assert_match('%TAG ! tag:tenderlovemaking.com,2009:', yaml)
+ assert_match('%TAG !! foo.com,2009:', yaml)
+ end
+
+ def test_emit_bad_tag
+ assert_raises(RuntimeError) do
+ @doc.tag_directives = [['!']]
+ @stream.to_yaml
+ end
+ end
+
+ def test_parse_version
+ assert_equal([1,1], @doc.version)
+ end
+
+ def test_emit_version
+ assert_match('%YAML 1.1', @stream.to_yaml)
+ end
+ end
+end
diff --git a/test/psych/test_emitter.rb b/test/psych/test_emitter.rb
new file mode 100644
index 0000000..bb24e52
--- /dev/null
+++ b/test/psych/test_emitter.rb
@@ -0,0 +1,87 @@
+# -*- coding: utf-8 -*-
+
+require 'test/psych/helper'
+
+module Psych
+ class TestEmitter < TestCase
+ def setup
+ super
+ @out = StringIO.new
+ @emitter = Psych::Emitter.new @out
+ end
+
+ def test_set_canonical
+ @emitter.canonical = true
+ assert_equal true, @emitter.canonical
+
+ @emitter.canonical = false
+ assert_equal false, @emitter.canonical
+ end
+
+ def test_indentation_set
+ assert_equal 2, @emitter.indentation
+ @emitter.indentation = 5
+ assert_equal 5, @emitter.indentation
+ end
+
+ def test_emit_utf_8
+ @emitter.start_stream Psych::Nodes::Stream::UTF8
+ @emitter.start_document [], [], false
+ @emitter.scalar '日本語', nil, nil, false, true, 1
+ @emitter.end_document true
+ @emitter.end_stream
+ assert_match('日本語', @out.string)
+ end
+
+ def test_start_stream_arg_error
+ assert_raises(TypeError) do
+ @emitter.start_stream 'asdfasdf'
+ end
+ end
+
+ def test_start_doc_arg_error
+ @emitter.start_stream Psych::Nodes::Stream::UTF8
+
+ [
+ [nil, [], false],
+ [[nil, nil], [], false],
+ [[], 'foo', false],
+ [[], ['foo'], false],
+ [[], [nil,nil], false],
+ ].each do |args|
+ assert_raises(TypeError) do
+ @emitter.start_document(*args)
+ end
+ end
+ end
+
+ def test_scalar_arg_error
+ @emitter.start_stream Psych::Nodes::Stream::UTF8
+ @emitter.start_document [], [], false
+
+ [
+ [:foo, nil, nil, false, true, 1],
+ ['foo', Object.new, nil, false, true, 1],
+ ['foo', nil, Object.new, false, true, 1],
+ ['foo', nil, nil, false, true, :foo],
+ ].each do |args|
+ assert_raises(TypeError) do
+ @emitter.scalar(*args)
+ end
+ end
+ end
+
+ def test_start_sequence_arg_error
+ @emitter.start_stream Psych::Nodes::Stream::UTF8
+ @emitter.start_document [], [], false
+
+ assert_raises(TypeError) do
+ @emitter.start_sequence(nil, Object.new, true, 1)
+ end
+
+ assert_raises(TypeError) do
+ @emitter.start_sequence(nil, nil, true, :foo)
+ end
+ end
+ end
+end
diff --git a/test/psych/test_encoding.rb b/test/psych/test_encoding.rb
new file mode 100644
index 0000000..4690621
--- /dev/null
+++ b/test/psych/test_encoding.rb
@@ -0,0 +1,91 @@
+# -*- coding: utf-8 -*-
+
+require 'test/psych/helper'
+
+module Psych
+ class TestEncoding < TestCase
+ class EncodingCatcher < Handler
+ attr_reader :strings
+ def initialize
+ @strings = []
+ end
+
+ (Handler.instance_methods(true) -
+ Object.instance_methods).each do |m|
+ class_eval %{
+ def #{m} *args
+ @strings += args.flatten.find_all { |a|
+ String === a
+ }
+ end
+ }
+ end
+ end
+
+ def setup
+ super
+ @handler = EncodingCatcher.new
+ @parser = Psych::Parser.new @handler
+ @utf8 = Encoding.find('UTF-8')
+ end
+
+ def test_scalar
+ @parser.parse("--- a")
+ assert_encodings @utf8, @handler.strings
+ end
+
+ def test_alias
+ @parser.parse(<<-eoyml)
+%YAML 1.1
+---
+!!seq [
+ !!str "Without properties",
+ &A !!str "Anchored",
+ !!str "Tagged",
+ *A,
+ !!str "",
+]
+ eoyml
+ assert_encodings @utf8, @handler.strings
+ end
+
+ def test_list_anchor
+ list = %w{ a b }
+ list << list
+ @parser.parse(Psych.dump(list))
+ assert_encodings @utf8, @handler.strings
+ end
+
+ def test_map_anchor
+ h = {}
+ h['a'] = h
+ @parser.parse(Psych.dump(h))
+ assert_encodings @utf8, @handler.strings
+ end
+
+ def test_map_tag
+ @parser.parse(<<-eoyml)
+%YAML 1.1
+---
+!!map { a : b }
+ eoyml
+ assert_encodings @utf8, @handler.strings
+ end
+
+ def test_doc_tag
+ @parser.parse(<<-eoyml)
+%YAML 1.1
+%TAG ! tag:tenderlovemaking.com,2009:
+--- !fun
+ eoyml
+ assert_encodings @utf8, @handler.strings
+ end
+
+ private
+ def assert_encodings encoding, strings
+ strings.each do |str|
+ assert_equal encoding, str.encoding, str
+ end
+ end
+ end
+end
diff --git a/test/psych/test_exception.rb b/test/psych/test_exception.rb
new file mode 100644
index 0000000..dd06168
--- /dev/null
+++ b/test/psych/test_exception.rb
@@ -0,0 +1,39 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestException < TestCase
+ class Wups < Exception
+ attr_reader :foo, :bar
+ def initialize *args
+ super
+ @foo = 1
+ @bar = 2
+ end
+ end
+
+ def setup
+ super
+ @wups = Wups.new
+ end
+
+ def test_convert
+ w = Psych.load(Psych.dump(@wups))
+ assert_equal @wups, w
+ assert_equal 1, w.foo
+ assert_equal 2, w.bar
+ end
+
+ def test_to_yaml_properties
+ class << @wups
+ def to_yaml_properties
+ [:@foo]
+ end
+ end
+
+ w = Psych.load(Psych.dump(@wups))
+ assert_equal @wups, w
+ assert_equal 1, w.foo
+ assert_nil w.bar
+ end
+ end
+end
diff --git a/test/psych/test_hash.rb b/test/psych/test_hash.rb
new file mode 100644
index 0000000..84de492
--- /dev/null
+++ b/test/psych/test_hash.rb
@@ -0,0 +1,30 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestHash < TestCase
+ def setup
+ super
+ @hash = { :a => 'b' }
+ end
+
+ def test_self_referential
+ @hash['self'] = @hash
+ assert_cycle(@hash)
+ end
+
+ def test_cycles
+ assert_cycle(@hash)
+ end
+
+ def test_ref_append
+ hash = Psych.load(<<-eoyml)
+---
+foo: &foo
+ hello: world
+bar:
+ <<: *foo
+eoyml
+ assert_equal({"foo"=>{"hello"=>"world"}, "bar"=>{"hello"=>"world"}}, hash)
+ end
+ end
+end
diff --git a/test/psych/test_json_tree.rb b/test/psych/test_json_tree.rb
new file mode 100644
index 0000000..a032f1e
--- /dev/null
+++ b/test/psych/test_json_tree.rb
@@ -0,0 +1,43 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestJSONTree < TestCase
+ def test_string
+ assert_match(/(['"])foo\1/, Psych.to_json("foo"))
+ end
+
+ def test_symbol
+ assert_match(/(['"])foo\1/, Psych.to_json(:foo))
+ end
+
+ def test_nil
+ assert_match(/^null/, Psych.to_json(nil))
+ end
+
+ def test_int
+ assert_match(/^10/, Psych.to_json(10))
+ end
+
+ def test_float
+ assert_match(/^1.2/, Psych.to_json(1.2))
+ end
+
+ def test_hash
+ hash = { 'one' => 'two' }
+ json = Psych.to_json(hash)
+ assert_match(/}$/, json)
+ assert_match(/^\{/, json)
+ assert_match(/['"]one['"]/, json)
+ assert_match(/['"]two['"]/, json)
+ end
+
+ def test_list_to_json
+ list = %w{ one two }
+ json = Psych.to_json(list)
+ assert_match(/]$/, json)
+ assert_match(/^\[/, json)
+ assert_match(/['"]one['"]/, json)
+ assert_match(/['"]two['"]/, json)
+ end
+ end
+end
diff --git a/test/psych/test_null.rb b/test/psych/test_null.rb
new file mode 100644
index 0000000..ca78aa9
--- /dev/null
+++ b/test/psych/test_null.rb
@@ -0,0 +1,19 @@
+require 'test/psych/helper'
+
+module Psych
+ ###
+ # Test null from YAML spec:
+ # http://yaml.org/type/null.html
+ class TestNull < TestCase
+ def test_null_list
+ assert_equal [nil] * 5, Psych.load(<<-eoyml)
+---
+- ~
+- null
+-
+- Null
+- NULL
+ eoyml
+ end
+ end
+end
diff --git a/test/psych/test_object.rb b/test/psych/test_object.rb
new file mode 100644
index 0000000..fd86c62
--- /dev/null
+++ b/test/psych/test_object.rb
@@ -0,0 +1,27 @@
+require 'test/psych/helper'
+
+module Psych
+ class Tagged
+ yaml_tag '!foo'
+
+ attr_accessor :baz
+
+ def initialize
+ @baz = 'bar'
+ end
+ end
+
+ class TestObject < TestCase
+ def test_dump_with_tag
+ tag = Tagged.new
+ assert_match('foo', Psych.dump(tag))
+ end
+
+ def test_tag_round_trip
+ tag = Tagged.new
+ tag2 = Psych.load(Psych.dump(tag))
+ assert_equal tag.baz, tag2.baz
+ assert_instance_of(Tagged, tag2)
+ end
+ end
+end
diff --git a/test/psych/test_omap.rb b/test/psych/test_omap.rb
new file mode 100644
index 0000000..06750c8
--- /dev/null
+++ b/test/psych/test_omap.rb
@@ -0,0 +1,68 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestOmap < TestCase
+ def test_self_referential
+ map = Psych::Omap.new
+ map['foo'] = 'bar'
+ map['self'] = map
+ assert_equal(map, Psych.load(Psych.dump(map)))
+ end
+
+ def test_keys
+ map = Psych::Omap.new
+ map['foo'] = 'bar'
+ assert_equal 'bar', map['foo']
+ end
+
+ def test_order
+ map = Psych::Omap.new
+ map['a'] = 'b'
+ map['b'] = 'c'
+ assert_equal [%w{a b}, %w{b c}], map.to_a
+ end
+
+ def test_square
+ list = [["a", "b"], ["b", "c"]]
+ map = Psych::Omap[*list.flatten]
+ assert_equal list, map.to_a
+ assert_equal 'b', map['a']
+ assert_equal 'c', map['b']
+ end
+
+ def test_dump
+ map = Psych::Omap['a', 'b', 'c', 'd']
+ yaml = Psych.dump(map)
+ assert_match('!omap', yaml)
+ assert_match('- a: b', yaml)
+ assert_match('- c: d', yaml)
+ end
+
+ def test_round_trip
+ list = [["a", "b"], ["b", "c"]]
+ map = Psych::Omap[*list.flatten]
+ assert_cycle(map)
+ end
+
+ def test_load
+ list = [["a", "b"], ["c", "d"]]
+ map = Psych.load(<<-eoyml)
+--- !omap
+- a: b
+- c: d
+ eoyml
+ assert_equal list, map.to_a
+ end
+
+ # NOTE: This test will not work with Syck
+ def test_load_shorthand
+ list = [["a", "b"], ["c", "d"]]
+ map = Psych.load(<<-eoyml)
+--- !!omap
+- a: b
+- c: d
+ eoyml
+ assert_equal list, map.to_a
+ end
+ end
+end
diff --git a/test/psych/test_parser.rb b/test/psych/test_parser.rb
new file mode 100644
index 0000000..3886994
--- /dev/null
+++ b/test/psych/test_parser.rb
@@ -0,0 +1,188 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestParser < TestCase
+ class EventCatcher < Handler
+ attr_reader :calls
+ def initialize
+ @calls = []
+ end
+
+ (Handler.instance_methods(true) -
+ Object.instance_methods).each do |m|
+ class_eval %{
+ def #{m} *args
+ super
+ @calls << [:#{m}, args]
+ end
+ }
+ end
+ end
+
+ def setup
+ super
+ @parser = Psych::Parser.new EventCatcher.new
+ end
+
+ def test_bogus_io
+ o = Object.new
+ def o.read len; self end
+
+ assert_raises(TypeError) do
+ @parser.parse o
+ end
+ end
+
+ def test_parse_io
+ @parser.parse StringIO.new("--- a")
+ assert_called :start_stream
+ assert_called :scalar
+ assert_called :end_stream
+ end
+
+ def test_syntax_error
+ assert_raises(Psych::SyntaxError) do
+ @parser.parse("---\n\"foo\"\n\"bar\"\n")
+ end
+ end
+
+ def test_mapping_end
+ @parser.parse("---\n!!map { key: value }")
+ assert_called :end_mapping
+ end
+
+ def test_mapping_tag
+ @parser.parse("---\n!!map { key: value }")
+ assert_called :start_mapping, ["tag:yaml.org,2002:map", false, Nodes::Mapping::FLOW]
+ end
+
+ def test_mapping_anchor
+ @parser.parse("---\n&A { key: value }")
+ assert_called :start_mapping, ['A', true, Nodes::Mapping::FLOW]
+ end
+
+ def test_mapping_block
+ @parser.parse("---\n key: value")
+ assert_called :start_mapping, [true, Nodes::Mapping::BLOCK]
+ end
+
+ def test_mapping_start
+ @parser.parse("---\n{ key: value }")
+ assert_called :start_mapping
+ assert_called :start_mapping, [true, Nodes::Mapping::FLOW]
+ end
+
+ def test_sequence_end
+ @parser.parse("---\n&A [1, 2]")
+ assert_called :end_sequence
+ end
+
+ def test_sequence_start_anchor
+ @parser.parse("---\n&A [1, 2]")
+ assert_called :start_sequence, ["A", true, Nodes::Sequence::FLOW]
+ end
+
+ def test_sequence_start_tag
+ @parser.parse("---\n!!seq [1, 2]")
+ assert_called :start_sequence, ["tag:yaml.org,2002:seq", false, Nodes::Sequence::FLOW]
+ end
+
+ def test_sequence_start_flow
+ @parser.parse("---\n[1, 2]")
+ assert_called :start_sequence, [true, Nodes::Sequence::FLOW]
+ end
+
+ def test_sequence_start_block
+ @parser.parse("---\n - 1\n - 2")
+ assert_called :start_sequence, [true, Nodes::Sequence::BLOCK]
+ end
+
+ def test_literal_scalar
+ @parser.parse(<<-eoyml)
+%YAML 1.1
+---
+"literal\n\
+ \ttext\n"
+ eoyml
+ assert_called :scalar, ['literal text ', false, true, Nodes::Scalar::DOUBLE_QUOTED]
+ end
+
+ def test_scalar
+ @parser.parse("--- foo\n")
+ assert_called :scalar, ['foo', true, false, Nodes::Scalar::PLAIN]
+ end
+
+ def test_scalar_with_tag
+ @parser.parse("---\n!!str foo\n")
+ assert_called :scalar, ['foo', 'tag:yaml.org,2002:str', false, false, Nodes::Scalar::PLAIN]
+ end
+
+ def test_scalar_with_anchor
+ @parser.parse("---\n&A foo\n")
+ assert_called :scalar, ['foo', 'A', true, false, Nodes::Scalar::PLAIN]
+ end
+
+ def test_scalar_plain_implicit
+ @parser.parse("---\n&A foo\n")
+ assert_called :scalar, ['foo', 'A', true, false, Nodes::Scalar::PLAIN]
+ end
+
+ def test_alias
+ @parser.parse(<<-eoyml)
+%YAML 1.1
+---
+!!seq [
+ !!str "Without properties",
+ &A !!str "Anchored",
+ !!str "Tagged",
+ *A,
+ !!str "",
+]
+ eoyml
+ assert_called :alias, ['A']
+ end
+
+ def test_end_stream
+ @parser.parse("--- foo\n")
+ assert_called :end_stream
+ end
+
+ def test_start_stream
+ @parser.parse("--- foo\n")
+ assert_called :start_stream
+ end
+
+ def test_end_document_implicit
+ @parser.parse("\"foo\"\n")
+ assert_called :end_document, [true]
+ end
+
+ def test_end_document_explicit
+ @parser.parse("\"foo\"\n...")
+ assert_called :end_document, [false]
+ end
+
+ def test_start_document_version
+ @parser.parse("%YAML 1.1\n---\n\"foo\"\n")
+ assert_called :start_document, [[1,1], [], false]
+ end
+
+ def test_start_document_tag
+ @parser.parse("%TAG !yaml! tag:yaml.org,2002\n---\n!yaml!str \"foo\"\n")
+ assert_called :start_document, [[], [['!yaml!', 'tag:yaml.org,2002']], false]
+ end
+
+ def assert_called call, with = nil, parser = @parser
+ if with
+ call = parser.handler.calls.find { |x|
+ x.first == call && x.last.compact == with
+ }
+ assert(call,
+ "#{[call,with].inspect} not in #{parser.handler.calls.inspect}"
+ )
+ else
+ assert parser.handler.calls.any? { |x| x.first == call }
+ end
+ end
+ end
+end
diff --git a/test/psych/test_psych.rb b/test/psych/test_psych.rb
new file mode 100644
index 0000000..b07af81
--- /dev/null
+++ b/test/psych/test_psych.rb
@@ -0,0 +1,69 @@
+require 'test/psych/helper'
+
+class TestPsych < Psych::TestCase
+ def test_dump_stream
+ things = [22, "foo \n", {}]
+ stream = Psych.dump_stream(*things)
+ assert_equal things, Psych.load_stream(stream)
+ end
+
+ def test_simple
+ assert_equal 'foo', Psych.load("--- foo\n")
+ end
+
+ def test_libyaml_version
+ assert Psych.libyaml_version
+ assert_equal Psych.libyaml_version.join('.'), Psych::LIBYAML_VERSION
+ end
+
+ def test_load_documents
+ docs = Psych.load_documents("--- foo\n...\n--- bar\n...")
+ assert_equal %w{ foo bar }, docs
+ end
+
+ def test_parse_stream
+ docs = Psych.parse_stream("--- foo\n...\n--- bar\n...")
+ assert_equal %w{ foo bar }, docs.children.map { |x| x.transform }
+ end
+
+ def test_add_builtin_type
+ got = nil
+ Psych.add_builtin_type 'omap', do |type, val|
+ got = val
+ end
+ Psych.load('--- !omap hello')
+ assert_equal 'hello', got
+ ensure
+ Psych.remove_type 'omap'
+ end
+
+ def test_domain_types
+ got = nil
+ Psych.add_domain_type 'foo.bar,2002', 'foo' do |type, val|
+ got = val
+ end
+
+ Psych.load('--- !foo.bar,2002/foo hello')
+ assert_equal 'hello', got
+
+ Psych.load("--- !foo.bar,2002/foo\n- hello\n- world")
+ assert_equal %w{ hello world }, got
+
+ Psych.load("--- !foo.bar,2002/foo\nhello: world")
+ assert_equal({ 'hello' => 'world' }, got)
+ end
+
+ def test_load_file
+ name = File.join(Dir.tmpdir, 'yikes.yml')
+ File.open(name, 'wb') { |f| f.write('--- hello world') }
+
+ assert_equal 'hello world', Psych.load_file(name)
+ end
+
+ def test_parse_file
+ name = File.join(Dir.tmpdir, 'yikes.yml')
+ File.open(name, 'wb') { |f| f.write('--- hello world') }
+
+ assert_equal 'hello world', Psych.parse_file(name).transform
+ end
+end
diff --git a/test/psych/test_scalar.rb b/test/psych/test_scalar.rb
new file mode 100644
index 0000000..d951d70
--- /dev/null
+++ b/test/psych/test_scalar.rb
@@ -0,0 +1,11 @@
+# -*- coding: utf-8 -*-
+
+require 'test/psych/helper'
+
+module Psych
+ class TestScalar < TestCase
+ def test_utf_8
+ assert_equal "日本語", Psych.load("--- 日本語")
+ end
+ end
+end
diff --git a/test/psych/test_scalar_scanner.rb b/test/psych/test_scalar_scanner.rb
new file mode 100644
index 0000000..797440b
--- /dev/null
+++ b/test/psych/test_scalar_scanner.rb
@@ -0,0 +1,70 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestScalarScanner < TestCase
+ def test_scan_time
+ [ '2001-12-15T02:59:43.1Z',
+ '2001-12-14t21:59:43.10-05:00',
+ '2001-12-14 21:59:43.10 -5',
+ '2010-01-06 00:00:00 -08:00',
+ '2001-12-15 2:59:43.10',
+ ].each do |time|
+ ss = Psych::ScalarScanner.new
+ assert_instance_of Time, ss.tokenize(time)
+ end
+ end
+
+ attr_reader :ss
+
+ def setup
+ super
+ @ss = Psych::ScalarScanner.new
+ end
+
+ def test_scan_date
+ date = '1980-12-16'
+ token = @ss.tokenize date
+ assert_equal 1980, token.year
+ assert_equal 12, token.month
+ assert_equal 16, token.day
+ end
+
+ def test_scan_inf
+ assert_equal(1 / 0.0, ss.tokenize('.inf'))
+ end
+
+ def test_scan_minus_inf
+ assert_equal(-1 / 0.0, ss.tokenize('-.inf'))
+ end
+
+ def test_scan_nan
+ assert ss.tokenize('.nan').nan?
+ end
+
+ def test_scan_null
+ assert_equal nil, ss.tokenize('null')
+ assert_equal nil, ss.tokenize('~')
+ assert_equal nil, ss.tokenize('')
+ end
+
+ def test_scan_symbol
+ assert_equal :foo, ss.tokenize(':foo')
+ end
+
+ def test_scan_sexagesimal_float
+ assert_equal 685230.15, ss.tokenize('190:20:30.15')
+ end
+
+ def test_scan_sexagesimal_int
+ assert_equal 685230, ss.tokenize('190:20:30')
+ end
+
+ def test_scan_float
+ assert_equal 1.2, ss.tokenize('1.2')
+ end
+
+ def test_scan_true
+ assert_equal true, ss.tokenize('true')
+ end
+ end
+end
diff --git a/test/psych/test_serialize_subclasses.rb b/test/psych/test_serialize_subclasses.rb
new file mode 100644
index 0000000..e198a66
--- /dev/null
+++ b/test/psych/test_serialize_subclasses.rb
@@ -0,0 +1,38 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestSerializeSubclasses < TestCase
+ class SomeObject
+ def initialize one, two
+ @one = one
+ @two = two
+ end
+
+ def == other
+ @one == other.instance_eval { @one } &&
+ @two == other.instance_eval { @two }
+ end
+ end
+
+ def test_some_object
+ so = SomeObject.new('foo', [1,2,3])
+ assert_equal so, Psych.load(Psych.dump(so))
+ end
+
+ class StructSubclass < Struct.new(:foo)
+ def initialize foo, bar
+ super(foo)
+ @bar = bar
+ end
+
+ def == other
+ super(other) && @bar == other.instance_eval{ @bar }
+ end
+ end
+
+ def test_struct_subclass
+ so = StructSubclass.new('foo', [1,2,3])
+ assert_equal so, Psych.load(Psych.dump(so))
+ end
+ end
+end
diff --git a/test/psych/test_set.rb b/test/psych/test_set.rb
new file mode 100644
index 0000000..1d15573
--- /dev/null
+++ b/test/psych/test_set.rb
@@ -0,0 +1,49 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestSet < TestCase
+ def setup
+ super
+ @set = Psych::Set.new
+ @set['foo'] = 'bar'
+ @set['bar'] = 'baz'
+ end
+
+ def test_dump
+ assert_match(/!set/, Psych.dump(@set))
+ end
+
+ def test_roundtrip
+ assert_cycle(@set)
+ end
+
+ ###
+ # FIXME: Syck should also support !!set as shorthand
+ def test_load_from_yaml
+ loaded = Psych.load(<<-eoyml)
+--- !set
+foo: bar
+bar: baz
+ eoyml
+ assert_equal(@set, loaded)
+ end
+
+ def test_loaded_class
+ assert_instance_of(Psych::Set, Psych.load(Psych.dump(@set)))
+ end
+
+ def test_set_shorthand
+ loaded = Psych.load(<<-eoyml)
+--- !!set
+foo: bar
+bar: baz
+ eoyml
+ assert_instance_of(Psych::Set, loaded)
+ end
+
+ def test_set_self_reference
+ @set['self'] = @set
+ assert_cycle(@set)
+ end
+ end
+end
diff --git a/test/psych/test_string.rb b/test/psych/test_string.rb
new file mode 100644
index 0000000..9f5bc27
--- /dev/null
+++ b/test/psych/test_string.rb
@@ -0,0 +1,49 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestString < TestCase
+ def test_binary_string_null
+ string = "\x00"
+ yml = Psych.dump string
+ assert_match(/binary/, yml)
+ assert_equal string, Psych.load(yml)
+ end
+
+ def test_binary_string
+ string = binary_string
+ yml = Psych.dump string
+ assert_match(/binary/, yml)
+ assert_equal string, Psych.load(yml)
+ end
+
+ def test_non_binary_string
+ string = binary_string(0.29)
+ yml = Psych.dump string
+ refute_match(/binary/, yml)
+ assert_equal string, Psych.load(yml)
+ end
+
+ def test_string_with_ivars
+ food = "is delicious"
+ ivar = "on rock and roll"
+ food.instance_variable_set(:@we_built_this_city, ivar)
+
+ str = Psych.load Psych.dump food
+ assert_equal ivar, food.instance_variable_get(:@we_built_this_city)
+ end
+
+ def test_binary
+ string = [0, 123,22, 44, 9, 32, 34, 39].pack('C*')
+ assert_cycle string
+ end
+
+ def binary_string percentage = 0.31, length = 100
+ string = ''
+ (percentage * length).to_i.times do |i|
+ string << "\b"
+ end
+ string << 'a' * (length - string.length)
+ string
+ end
+ end
+end
diff --git a/test/psych/test_struct.rb b/test/psych/test_struct.rb
new file mode 100644
index 0000000..44dbab9
--- /dev/null
+++ b/test/psych/test_struct.rb
@@ -0,0 +1,51 @@
+require 'test/psych/helper'
+
+class PsychStructWithIvar < Struct.new(:foo)
+ attr_reader :bar
+ def initialize *args
+ super
+ @bar = 'hello'
+ end
+end
+
+module Psych
+ class TestStruct < TestCase
+ class StructSubclass < Struct.new(:foo)
+ def initialize foo, bar
+ super(foo)
+ @bar = bar
+ end
+ end
+
+ def test_self_referential_struct
+ ss = StructSubclass.new(nil, 'foo')
+ ss.foo = ss
+
+ loaded = Psych.load(Psych.dump(ss))
+ assert_instance_of(StructSubclass, loaded.foo)
+
+ # FIXME: This seems to cause an infinite loop. wtf. Must report a bug
+ # in ruby.
+ # assert_equal(ss, loaded)
+ end
+
+ def test_roundtrip
+ thing = PsychStructWithIvar.new('bar')
+ struct = Psych.load(Psych.dump(thing))
+
+ assert_equal 'hello', struct.bar
+ assert_equal 'bar', struct.foo
+ end
+
+ def test_load
+ obj = Psych.load(<<-eoyml)
+--- !ruby/struct:PsychStructWithIvar
+:foo: bar
+:@bar: hello
+ eoyml
+
+ assert_equal 'hello', obj.bar
+ assert_equal 'bar', obj.foo
+ end
+ end
+end
diff --git a/test/psych/test_symbol.rb b/test/psych/test_symbol.rb
new file mode 100644
index 0000000..83d8ca0
--- /dev/null
+++ b/test/psych/test_symbol.rb
@@ -0,0 +1,17 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestSymbol < TestCase
+ def test_cycle
+ assert_cycle :a
+ end
+
+ def test_stringy
+ assert_cycle :"1"
+ end
+
+ def test_load_quoted
+ assert_equal :"1", Psych.load("--- :'1'\n")
+ end
+ end
+end
diff --git a/test/psych/test_to_yaml_properties.rb b/test/psych/test_to_yaml_properties.rb
new file mode 100644
index 0000000..84ae1da
--- /dev/null
+++ b/test/psych/test_to_yaml_properties.rb
@@ -0,0 +1,63 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestToYamlProperties < MiniTest::Unit::TestCase
+ class Foo
+ attr_accessor :a, :b, :c
+ def initialize
+ @a = 1
+ @b = 2
+ @c = 3
+ end
+
+ def to_yaml_properties
+ [:@a, :@b]
+ end
+ end
+
+ def test_object_dump_yaml_properties
+ foo = Psych.load(Psych.dump(Foo.new))
+ assert_equal 1, foo.a
+ assert_equal 2, foo.b
+ assert_nil foo.c
+ end
+
+ class Bar < Struct.new(:foo, :bar)
+ attr_reader :baz
+ def initialize *args
+ super
+ @baz = 'hello'
+ end
+
+ def to_yaml_properties
+ []
+ end
+ end
+
+ def test_struct_dump_yaml_properties
+ bar = Psych.load(Psych.dump(Bar.new('a', 'b')))
+ assert_equal 'a', bar.foo
+ assert_equal 'b', bar.bar
+ assert_nil bar.baz
+ end
+
+ def test_string_dump
+ string = "okonomiyaki"
+ class << string
+ def to_yaml_properties
+ [:@tastes]
+ end
+ end
+
+ string.instance_variable_set(:@tastes, 'delicious')
+ v = Psych.load Psych.dump string
+ assert_equal 'delicious', v.instance_variable_get(:@tastes)
+ end
+
+ def test_string_load_syck
+ str = Psych.load("--- !str \nstr: okonomiyaki\n:@tastes: delicious\n")
+ assert_equal 'okonomiyaki', str
+ assert_equal 'delicious', str.instance_variable_get(:@tastes)
+ end
+ end
+end
diff --git a/test/psych/test_tree_builder.rb b/test/psych/test_tree_builder.rb
new file mode 100644
index 0000000..f03adc5
--- /dev/null
+++ b/test/psych/test_tree_builder.rb
@@ -0,0 +1,79 @@
+require 'test/psych/helper'
+
+module Psych
+ class TestTreeBuilder < TestCase
+ def setup
+ super
+ @parser = Psych::Parser.new TreeBuilder.new
+ @parser.parse(<<-eoyml)
+%YAML 1.1
+---
+- foo
+- {
+ bar : &A !!str baz,
+ boo : *A
+}
+- *A
+ eoyml
+ @tree = @parser.handler.root
+ end
+
+ def test_stream
+ assert_instance_of Nodes::Stream, @tree
+ end
+
+ def test_documents
+ assert_equal 1, @tree.children.length
+ assert_instance_of Nodes::Document, @tree.children.first
+ doc = @tree.children.first
+
+ assert_equal [1,1], doc.version
+ assert_equal [], doc.tag_directives
+ assert_equal false, doc.implicit
+ end
+
+ def test_sequence
+ doc = @tree.children.first
+ assert_equal 1, doc.children.length
+
+ seq = doc.children.first
+ assert_instance_of Nodes::Sequence, seq
+ assert_nil seq.anchor
+ assert_nil seq.tag
+ assert_equal true, seq.implicit
+ assert_equal Nodes::Sequence::BLOCK, seq.style
+ end
+
+ def test_scalar
+ doc = @tree.children.first
+ seq = doc.children.first
+
+ assert_equal 3, seq.children.length
+ scalar = seq.children.first
+ assert_instance_of Nodes::Scalar, scalar
+ assert_equal 'foo', scalar.value
+ assert_nil scalar.anchor
+ assert_nil scalar.tag
+ assert_equal true, scalar.plain
+ assert_equal false, scalar.quoted
+ assert_equal Nodes::Scalar::PLAIN, scalar.style
+ end
+
+ def test_mapping
+ doc = @tree.children.first
+ seq = doc.children.first
+ map = seq.children[1]
+
+ assert_instance_of Nodes::Mapping, map
+ end
+
+ def test_alias
+ doc = @tree.children.first
+ seq = doc.children.first
+ assert_equal 3, seq.children.length
+ al = seq.children[2]
+ assert_instance_of Nodes::Alias, al
+ assert_equal 'A', al.anchor
+ end
+ end
+end
diff --git a/test/psych/test_yaml.rb b/test/psych/test_yaml.rb
new file mode 100644
index 0000000..0ad988c
--- /dev/null
+++ b/test/psych/test_yaml.rb
@@ -0,0 +1,1248 @@
+# -*- mode: ruby; ruby-indent-level: 4; tab-width: 4 -*-
+# vim:sw=4:ts=4
+# $Id$
+#
+require 'test/psych/helper'
+
+# [ruby-core:01946]
+module Psych_Tests
+ StructTest = Struct::new( :c )
+end
+
+class Psych_Unit_Tests < Psych::TestCase
+ #
+ # Tests modified from 00basic.t in Psych.pm
+ #
+ def test_basic_map
+ # Simple map
+ assert_parse_only(
+ { 'one' => 'foo', 'three' => 'baz', 'two' => 'bar' }, <<EOY
+one: foo
+two: bar
+three: baz
+EOY
+ )
+ end
+
+ def test_basic_strings
+ # Common string types
+ assert_cycle("x")
+ assert_cycle(":x")
+ assert_cycle(":")
+ assert_parse_only(
+ { 1 => 'simple string', 2 => 42, 3 => '1 Single Quoted String',
+ 4 => 'Psych\'s Double "Quoted" String', 5 => "A block\n with several\n lines.\n",
+ 6 => "A \"chomped\" block", 7 => "A folded\n string\n", 8 => ": started string" },
+ <<EOY
+1: simple string
+2: 42
+3: '1 Single Quoted String'
+4: "Psych's Double \\\"Quoted\\\" String"
+5: |
+ A block
+ with several
+ lines.
+6: |-
+ A "chomped" block
+7: >
+ A
+ folded
+ string
+8: ": started string"
+EOY
+ )
+ end
+
+ #
+ # Test the specification examples
+ # - Many examples have been changes because of whitespace problems that
+ # caused the two to be inequivalent, or keys to be sorted wrong
+ #
+
+ def test_spec_simple_implicit_sequence
+ # Simple implicit sequence
+ assert_to_yaml(
+ [ 'Mark McGwire', 'Sammy Sosa', 'Ken Griffey' ], <<EOY
+- Mark McGwire
+- Sammy Sosa
+- Ken Griffey
+EOY
+ )
+ end
+
+ def test_spec_simple_implicit_map
+ # Simple implicit map
+ assert_to_yaml(
+ { 'hr' => 65, 'avg' => 0.278, 'rbi' => 147 }, <<EOY
+avg: 0.278
+hr: 65
+rbi: 147
+EOY
+ )
+ end
+
+ def test_spec_simple_map_with_nested_sequences
+ # Simple mapping with nested sequences
+ assert_to_yaml(
+ { 'american' =>
+ [ 'Boston Red Sox', 'Detroit Tigers', 'New York Yankees' ],
+ 'national' =>
+ [ 'New York Mets', 'Chicago Cubs', 'Atlanta Braves' ] }, <<EOY
+american:
+ - Boston Red Sox
+ - Detroit Tigers
+ - New York Yankees
+national:
+ - New York Mets
+ - Chicago Cubs
+ - Atlanta Braves
+EOY
+ )
+ end
+
+ def test_spec_simple_sequence_with_nested_map
+ # Simple sequence with nested map
+ assert_to_yaml(
+ [
+ {'name' => 'Mark McGwire', 'hr' => 65, 'avg' => 0.278},
+ {'name' => 'Sammy Sosa', 'hr' => 63, 'avg' => 0.288}
+ ], <<EOY
+-
+ avg: 0.278
+ hr: 65
+ name: Mark McGwire
+-
+ avg: 0.288
+ hr: 63
+ name: Sammy Sosa
+EOY
+ )
+ end
+
+ def test_spec_sequence_of_sequences
+ # Simple sequence with inline sequences
+ assert_parse_only(
+ [
+ [ 'name', 'hr', 'avg' ],
+ [ 'Mark McGwire', 65, 0.278 ],
+ [ 'Sammy Sosa', 63, 0.288 ]
+ ], <<EOY
+- [ name , hr , avg ]
+- [ Mark McGwire , 65 , 0.278 ]
+- [ Sammy Sosa , 63 , 0.288 ]
+EOY
+ )
+ end
+
+ def test_spec_mapping_of_mappings
+ # Simple map with inline maps
+ assert_parse_only(
+ { 'Mark McGwire' =>
+ { 'hr' => 65, 'avg' => 0.278 },
+ 'Sammy Sosa' =>
+ { 'hr' => 63, 'avg' => 0.288 }
+ }, <<EOY
+Mark McGwire: {hr: 65, avg: 0.278}
+Sammy Sosa: {hr: 63,
+ avg: 0.288}
+EOY
+ )
+ end
+
+ def test_ambiguous_comments
+ # [ruby-talk:88012]
+ assert_to_yaml( "Call the method #dave", <<EOY )
+--- "Call the method #dave"
+EOY
+ end
+
+ def test_spec_nested_comments
+ # Map and sequences with comments
+ assert_parse_only(
+ { 'hr' => [ 'Mark McGwire', 'Sammy Sosa' ],
+ 'rbi' => [ 'Sammy Sosa', 'Ken Griffey' ] }, <<EOY
+hr: # 1998 hr ranking
+ - Mark McGwire
+ - Sammy Sosa
+rbi:
+ # 1998 rbi ranking
+ - Sammy Sosa
+ - Ken Griffey
+EOY
+ )
+ end
+
+ def test_spec_anchors_and_aliases
+ # Anchors and aliases
+ assert_parse_only(
+ { 'hr' =>
+ [ 'Mark McGwire', 'Sammy Sosa' ],
+ 'rbi' =>
+ [ 'Sammy Sosa', 'Ken Griffey' ] }, <<EOY
+hr:
+ - Mark McGwire
+ # Name "Sammy Sosa" scalar SS
+ - &SS Sammy Sosa
+rbi:
+ # So it can be referenced later.
+ - *SS
+ - Ken Griffey
+EOY
+ )
+
+ assert_to_yaml(
+ [{"arrival"=>"EDI", "departure"=>"LAX", "fareref"=>"DOGMA", "currency"=>"GBP"}, {"arrival"=>"MEL", "departure"=>"SYD", "fareref"=>"MADF", "currency"=>"AUD"}, {"arrival"=>"MCO", "departure"=>"JFK", "fareref"=>"DFSF", "currency"=>"USD"}], <<EOY
+ -
+ &F fareref: DOGMA
+ &C currency: GBP
+ &D departure: LAX
+ &A arrival: EDI
+ - { *F: MADF, *C: AUD, *D: SYD, *A: MEL }
+ - { *F: DFSF, *C: USD, *D: JFK, *A: MCO }
+EOY
+ )
+
+ assert_to_yaml(
+ {"ALIASES"=>["fareref", "currency", "departure", "arrival"], "FARES"=>[{"arrival"=>"EDI", "departure"=>"LAX", "fareref"=>"DOGMA", "currency"=>"GBP"}, {"arrival"=>"MEL", "departure"=>"SYD", "fareref"=>"MADF", "currency"=>"AUD"}, {"arrival"=>"MCO", "departure"=>"JFK", "fareref"=>"DFSF", "currency"=>"USD"}]}, <<EOY
+---
+ALIASES: [&f fareref, &c currency, &d departure, &a arrival]
+FARES:
+- *f: DOGMA
+ *c: GBP
+ *d: LAX
+ *a: EDI
+
+- *f: MADF
+ *c: AUD
+ *d: SYD
+ *a: MEL
+
+- *f: DFSF
+ *c: USD
+ *d: JFK
+ *a: MCO
+
+EOY
+ )
+
+ end
+
+ def test_spec_mapping_between_sequences
+ # Complex key #1
+ dj = Date.new( 2001, 7, 23 )
+ assert_parse_only(
+ { [ 'Detroit Tigers', 'Chicago Cubs' ] => [ Date.new( 2001, 7, 23 ) ],
+ [ 'New York Yankees', 'Atlanta Braves' ] => [ Date.new( 2001, 7, 2 ), Date.new( 2001, 8, 12 ), Date.new( 2001, 8, 14 ) ] }, <<EOY
+? # PLAY SCHEDULE
+ - Detroit Tigers
+ - Chicago Cubs
+:
+ - 2001-07-23
+
+? [ New York Yankees,
+ Atlanta Braves ]
+: [ 2001-07-02, 2001-08-12,
+ 2001-08-14 ]
+EOY
+ )
+
+ # Complex key #2
+ assert_parse_only(
+ { [ 'New York Yankees', 'Atlanta Braves' ] =>
+ [ Date.new( 2001, 7, 2 ), Date.new( 2001, 8, 12 ),
+ Date.new( 2001, 8, 14 ) ],
+ [ 'Detroit Tigers', 'Chicago Cubs' ] =>
+ [ Date.new( 2001, 7, 23 ) ]
+ }, <<EOY
+?
+ - New York Yankees
+ - Atlanta Braves
+:
+ - 2001-07-02
+ - 2001-08-12
+ - 2001-08-14
+?
+ - Detroit Tigers
+ - Chicago Cubs
+:
+ - 2001-07-23
+EOY
+ )
+ end
+
+ def test_spec_sequence_key_shortcut
+ # Shortcut sequence map
+ assert_parse_only(
+ { 'invoice' => 34843, 'date' => Date.new( 2001, 1, 23 ),
+ 'bill-to' => 'Chris Dumars', 'product' =>
+ [ { 'item' => 'Super Hoop', 'quantity' => 1 },
+ { 'item' => 'Basketball', 'quantity' => 4 },
+ { 'item' => 'Big Shoes', 'quantity' => 1 } ] }, <<EOY
+invoice: 34843
+date : 2001-01-23
+bill-to: Chris Dumars
+product:
+ - item : Super Hoop
+ quantity: 1
+ - item : Basketball
+ quantity: 4
+ - item : Big Shoes
+ quantity: 1
+EOY
+ )
+ end
+
+ def test_spec_sequence_in_sequence_shortcut
+ # Seq-in-seq
+ assert_parse_only( [ [ [ 'one', 'two', 'three' ] ] ], <<EOY )
+- - - one
+ - two
+ - three
+EOY
+ end
+
+ def test_spec_sequence_shortcuts
+ # Sequence shortcuts combined
+ assert_parse_only(
+[
+ [
+ [ [ 'one' ] ],
+ [ 'two', 'three' ],
+ { 'four' => nil },
+ [ { 'five' => [ 'six' ] } ],
+ [ 'seven' ]
+ ],
+ [ 'eight', 'nine' ]
+], <<EOY )
+- - - - one
+ - - two
+ - three
+ - four:
+ - - five:
+ - six
+ - - seven
+- - eight
+ - nine
+EOY
+ end
+
+ def test_spec_single_literal
+ # Literal scalar block
+ assert_parse_only( [ "\\/|\\/|\n/ | |_\n" ], <<EOY )
+- |
+ \\/|\\/|
+ / | |_
+EOY
+ end
+
+ def test_spec_single_folded
+ # Folded scalar block
+ assert_parse_only(
+ [ "Mark McGwire's year was crippled by a knee injury.\n" ], <<EOY
+- >
+ Mark McGwire\'s
+ year was crippled
+ by a knee injury.
+EOY
+ )
+ end
+
+ def test_spec_preserve_indent
+ # Preserve indented spaces
+ assert_parse_only(
+ "Sammy Sosa completed another fine season with great stats.\n\n 63 Home Runs\n 0.288 Batting Average\n\nWhat a year!\n", <<EOY
+--- >
+ Sammy Sosa completed another
+ fine season with great stats.
+
+ 63 Home Runs
+ 0.288 Batting Average
+
+ What a year!
+EOY
+ )
+ end
+
+ def test_spec_indentation_determines_scope
+ assert_parse_only(
+ { 'name' => 'Mark McGwire', 'accomplishment' => "Mark set a major league home run record in 1998.\n",
+ 'stats' => "65 Home Runs\n0.278 Batting Average\n" }, <<EOY
+name: Mark McGwire
+accomplishment: >
+ Mark set a major league
+ home run record in 1998.
+stats: |
+ 65 Home Runs
+ 0.278 Batting Average
+EOY
+ )
+ end
+
+ def test_spec_multiline_scalars
+ # Multiline flow scalars
+ assert_parse_only(
+ { 'plain' => 'This unquoted scalar spans many lines.',
+ 'quoted' => "So does this quoted scalar.\n" }, <<EOY
+plain: This unquoted
+ scalar spans
+ many lines.
+quoted: "\\
+ So does this quoted
+ scalar.\\n"
+EOY
+ )
+ end
+
+ def test_spec_type_int
+ assert_parse_only(
+ { 'canonical' => 12345, 'decimal' => 12345, 'octal' => '014'.oct, 'hexadecimal' => '0xC'.hex }, <<EOY
+canonical: 12345
+decimal: +12,345
+octal: 014
+hexadecimal: 0xC
+EOY
+ )
+ assert_parse_only(
+ { 'canonical' => 685230, 'decimal' => 685230, 'octal' => 02472256, 'hexadecimal' => 0x0A74AE, 'sexagesimal' => 685230 }, <<EOY)
+canonical: 685230
+decimal: +685,230
+octal: 02472256
+hexadecimal: 0x0A,74,AE
+sexagesimal: 190:20:30
+EOY
+ end
+
+ def test_spec_type_float
+ assert_parse_only(
+ { 'canonical' => 1230.15, 'exponential' => 1230.15, 'fixed' => 1230.15,
+ 'negative infinity' => -1.0/0.0 }, <<EOY)
+canonical: 1.23015e+3
+exponential: 12.3015e+02
+fixed: 1,230.15
+negative infinity: -.inf
+EOY
+ nan = Psych::load( <<EOY )
+not a number: .NaN
+EOY
+ assert( nan['not a number'].nan? )
+ end
+
+ def test_spec_type_misc
+ assert_parse_only(
+ { nil => nil, true => true, false => false, 'string' => '12345' }, <<EOY
+null: ~
+true: yes
+false: no
+string: '12345'
+EOY
+ )
+ end
+
+ def test_spec_complex_invoice
+ # Complex invoice type
+ id001 = { 'given' => 'Chris', 'family' => 'Dumars', 'address' =>
+ { 'lines' => "458 Walkman Dr.\nSuite #292\n", 'city' => 'Royal Oak',
+ 'state' => 'MI', 'postal' => 48046 } }
+ assert_parse_only(
+ { 'invoice' => 34843, 'date' => Date.new( 2001, 1, 23 ),
+ 'bill-to' => id001, 'ship-to' => id001, 'product' =>
+ [ { 'sku' => 'BL394D', 'quantity' => 4,
+ 'description' => 'Basketball', 'price' => 450.00 },
+ { 'sku' => 'BL4438H', 'quantity' => 1,
+ 'description' => 'Super Hoop', 'price' => 2392.00 } ],
+ 'tax' => 251.42, 'total' => 4443.52,
+ 'comments' => "Late afternoon is best. Backup contact is Nancy Billsmer @ 338-4338.\n" }, <<EOY
+invoice: 34843
+date : 2001-01-23
+bill-to: &id001
+ given : Chris
+ family : !str Dumars
+ address:
+ lines: |
+ 458 Walkman Dr.
+ Suite #292
+ city : Royal Oak
+ state : MI
+ postal : 48046
+ship-to: *id001
+product:
+ - !map
+ sku : BL394D
+ quantity : 4
+ description : Basketball
+ price : 450.00
+ - sku : BL4438H
+ quantity : 1
+ description : Super Hoop
+ price : 2392.00
+tax : 251.42
+total: 4443.52
+comments: >
+ Late afternoon is best.
+ Backup contact is Nancy
+ Billsmer @ 338-4338.
+EOY
+ )
+ end
+
+ def test_spec_log_file
+ doc_ct = 0
+ Psych::load_documents( <<EOY
+---
+Time: 2001-11-23 15:01:42 -05:00
+User: ed
+Warning: >
+ This is an error message
+ for the log file
+---
+Time: 2001-11-23 15:02:31 -05:00
+User: ed
+Warning: >
+ A slightly different error
+ message.
+---
+Date: 2001-11-23 15:03:17 -05:00
+User: ed
+Fatal: >
+ Unknown variable "bar"
+Stack:
+ - file: TopClass.py
+ line: 23
+ code: |
+ x = MoreObject("345\\n")
+ - file: MoreClass.py
+ line: 58
+ code: |-
+ foo = bar
+EOY
+ ) { |doc|
+ case doc_ct
+ when 0
+ assert_equal( doc, { 'Time' => mktime( 2001, 11, 23, 15, 01, 42, 00, "-05:00" ),
+ 'User' => 'ed', 'Warning' => "This is an error message for the log file\n" } )
+ when 1
+ assert_equal( doc, { 'Time' => mktime( 2001, 11, 23, 15, 02, 31, 00, "-05:00" ),
+ 'User' => 'ed', 'Warning' => "A slightly different error message.\n" } )
+ when 2
+ assert_equal( doc, { 'Date' => mktime( 2001, 11, 23, 15, 03, 17, 00, "-05:00" ),
+ 'User' => 'ed', 'Fatal' => "Unknown variable \"bar\"\n",
+ 'Stack' => [
+ { 'file' => 'TopClass.py', 'line' => 23, 'code' => "x = MoreObject(\"345\\n\")\n" },
+ { 'file' => 'MoreClass.py', 'line' => 58, 'code' => "foo = bar" } ] } )
+ end
+ doc_ct += 1
+ }
+ assert_equal( doc_ct, 3 )
+ end
+
+ def test_spec_root_fold
+ y = Psych::load( <<EOY
+---
+This Psych stream contains a single text value.
+The next stream is a log file - a sequence of
+log entries. Adding an entry to the log is a
+simple matter of appending it at the end.
+EOY
+ )
+ assert_equal( y, "This Psych stream contains a single text value. The next stream is a log file - a sequence of log entries. Adding an entry to the log is a simple matter of appending it at the end." )
+ end
+
+ def test_spec_root_mapping
+ y = Psych::load( <<EOY
+# This stream is an example of a top-level mapping.
+invoice : 34843
+date : 2001-01-23
+total : 4443.52
+EOY
+ )
+ assert_equal( y, { 'invoice' => 34843, 'date' => Date.new( 2001, 1, 23 ), 'total' => 4443.52 } )
+ end
+
+ def test_spec_oneline_docs
+ doc_ct = 0
+ Psych::load_documents( <<EOY
+# The following is a sequence of three documents.
+# The first contains an empty mapping, the second
+# an empty sequence, and the last an empty string.
+--- {}
+--- [ ]
+--- ''
+EOY
+ ) { |doc|
+ case doc_ct
+ when 0
+ assert_equal( doc, {} )
+ when 1
+ assert_equal( doc, [] )
+ when 2
+ assert_equal( doc, '' )
+ end
+ doc_ct += 1
+ }
+ assert_equal( doc_ct, 3 )
+ end
+
+ def test_spec_domain_prefix
+ customer_proc = proc { |type, val|
+ if Hash === val
+ scheme, domain, type = type.split( ':', 3 )
+ val['type'] = "domain #{type}"
+ val
+ else
+ raise ArgumentError, "Not a Hash in domain.tld,2002/invoice: " + val.inspect
+ end
+ }
+ Psych.add_domain_type( "domain.tld,2002", 'invoice', &customer_proc )
+ Psych.add_domain_type( "domain.tld,2002", 'customer', &customer_proc )
+ assert_parse_only( { "invoice"=> { "customers"=> [ { "given"=>"Chris", "type"=>"domain customer", "family"=>"Dumars" } ], "type"=>"domain invoice" } }, <<EOY
+# 'http://domain.tld,2002/invoice' is some type family.
+invoice: !domain.tld,2002/invoice
+ # 'seq' is shorthand for 'http://yaml.org/seq'.
+ # This does not effect '^customer' below
+ # because it is does not specify a prefix.
+ customers: !seq
+ # '^customer' is shorthand for the full
+ # notation 'http://domain.tld,2002/customer'.
+ - !customer
+ given : Chris
+ family : Dumars
+EOY
+ )
+ end
+
+ def test_spec_throwaway
+ assert_parse_only(
+ {"this"=>"contains three lines of text.\nThe third one starts with a\n# character. This isn't a comment.\n"}, <<EOY
+### These are four throwaway comment ###
+
+### lines (the second line is empty). ###
+this: | # Comments may trail lines.
+ contains three lines of text.
+ The third one starts with a
+ # character. This isn't a comment.
+
+# These are three throwaway comment
+# lines (the first line is empty).
+EOY
+ )
+ end
+
+ def test_spec_force_implicit
+ # Force implicit
+ assert_parse_only(
+ { 'integer' => 12, 'also int' => 12, 'string' => '12' }, <<EOY
+integer: 12
+also int: ! "12"
+string: !str 12
+EOY
+ )
+ end
+
+ ###
+ # Commenting out this test. This line:
+ #
+ # - !domain.tld,2002/type\\x30 value
+ #
+ # Is invalid according to the YAML spec:
+ #
+ # http://yaml.org/spec/1.1/#id896876
+ #
+# def test_spec_url_escaping
+# Psych.add_domain_type( "domain.tld,2002", "type0" ) { |type, val|
+# "ONE: #{val}"
+# }
+# Psych.add_domain_type( "domain.tld,2002", "type%30" ) { |type, val|
+# "TWO: #{val}"
+# }
+# assert_parse_only(
+# { 'same' => [ 'ONE: value', 'ONE: value' ], 'different' => [ 'TWO: value' ] }, <<EOY
+#same:
+# - !domain.tld,2002/type\\x30 value
+# - !domain.tld,2002/type0 value
+#different: # As far as the Psych parser is concerned
+# - !domain.tld,2002/type%30 value
+#EOY
+# )
+# end
+
+ def test_spec_override_anchor
+ # Override anchor
+ a001 = "The alias node below is a repeated use of this value.\n"
+ assert_parse_only(
+ { 'anchor' => 'This scalar has an anchor.', 'override' => a001, 'alias' => a001 }, <<EOY
+anchor : &A001 This scalar has an anchor.
+override : &A001 >
+ The alias node below is a
+ repeated use of this value.
+alias : *A001
+EOY
+ )
+ end
+
+ def test_spec_explicit_families
+ Psych.add_domain_type( "somewhere.com,2002", 'type' ) { |type, val|
+ "SOMEWHERE: #{val}"
+ }
+ assert_parse_only(
+ { 'not-date' => '2002-04-28', 'picture' => "GIF89a\f\000\f\000\204\000\000\377\377\367\365\365\356\351\351\345fff\000\000\000\347\347\347^^^\363\363\355\216\216\216\340\340\340\237\237\237\223\223\223\247\247\247\236\236\236i^\020' \202\n\001\000;", 'hmm' => "SOMEWHERE: family above is short for\nhttp://somewhere.com/type\n" }, <<EOY
+not-date: !str 2002-04-28
+picture: !binary |
+ R0lGODlhDAAMAIQAAP//9/X
+ 17unp5WZmZgAAAOfn515eXv
+ Pz7Y6OjuDg4J+fn5OTk6enp
+ 56enmleECcgggoBADs=
+
+hmm: !somewhere.com,2002/type |
+ family above is short for
+ http://somewhere.com/type
+EOY
+ )
+ end
+
+ def test_spec_application_family
+ # Testing the clarkevans.com graphs
+ Psych.add_domain_type( "clarkevans.com,2002", 'graph/shape' ) { |type, val|
+ if Array === val
+ val << "Shape Container"
+ val
+ else
+ raise ArgumentError, "Invalid graph of type #{val.class}: " + val.inspect
+ end
+ }
+ one_shape_proc = Proc.new { |type, val|
+ if Hash === val
+ type = type.split( /:/ )
+ val['TYPE'] = "Shape: #{type[2]}"
+ val
+ else
+ raise ArgumentError, "Invalid graph of type #{val.class}: " + val.inspect
+ end
+ }
+ Psych.add_domain_type( "clarkevans.com,2002", 'graph/circle', &one_shape_proc )
+ Psych.add_domain_type( "clarkevans.com,2002", 'graph/line', &one_shape_proc )
+ Psych.add_domain_type( "clarkevans.com,2002", 'graph/text', &one_shape_proc )
+ # MODIFIED to remove invalid Psych
+ assert_parse_only(
+ [[{"radius"=>7, "center"=>{"x"=>73, "y"=>129}, "TYPE"=>"Shape: graph/circle"}, {"finish"=>{"x"=>89, "y"=>102}, "TYPE"=>"Shape: graph/line", "start"=>{"x"=>73, "y"=>129}}, {"TYPE"=>"Shape: graph/text", "value"=>"Pretty vector drawing.", "start"=>{"x"=>73, "y"=>129}, "color"=>16772795}, "Shape Container"]], <<EOY
+- !clarkevans.com,2002/graph/shape
+ - !/graph/circle
+ center: &ORIGIN {x: 73, y: 129}
+ radius: 7
+ - !/graph/line # !clarkevans.com,2002/graph/line
+ start: *ORIGIN
+ finish: { x: 89, y: 102 }
+ - !/graph/text
+ start: *ORIGIN
+ color: 0xFFEEBB
+ value: Pretty vector drawing.
+EOY
+ )
+ end
+
+ def test_spec_float_explicit
+ assert_parse_only(
+ [ 10.0, 10.0, 10.0, 10.0 ], <<EOY
+# All entries in the sequence
+# have the same type and value.
+- 10.0
+- !float 10
+- !yaml.org,2002/float '10'
+- !yaml.org,2002/float "\\
+ 1\\
+ 0"
+EOY
+ )
+ end
+
+ def test_spec_builtin_seq
+ # Assortment of sequences
+ assert_parse_only(
+ { 'empty' => [], 'in-line' => [ 'one', 'two', 'three', 'four', 'five' ],
+ 'nested' => [ 'First item in top sequence', [ 'Subordinate sequence entry' ],
+ "A multi-line sequence entry\n", 'Sixth item in top sequence' ] }, <<EOY
+empty: []
+in-line: [ one, two, three # May span lines,
+ , four, # indentation is
+ five ] # mostly ignored.
+nested:
+ - First item in top sequence
+ -
+ - Subordinate sequence entry
+ - >
+ A multi-line
+ sequence entry
+ - Sixth item in top sequence
+EOY
+ )
+ end
+
+ def test_spec_builtin_map
+ # Assortment of mappings
+ assert_parse_only(
+ { 'empty' => {}, 'in-line' => { 'one' => 1, 'two' => 2 },
+ 'spanning' => { 'one' => 1, 'two' => 2 },
+ 'nested' => { 'first' => 'First entry', 'second' =>
+ { 'key' => 'Subordinate mapping' }, 'third' =>
+ [ 'Subordinate sequence', {}, 'Previous mapping is empty.',
+ { 'A key' => 'value pair in a sequence.', 'A second' => 'key:value pair.' },
+ 'The previous entry is equal to the following one.',
+ { 'A key' => 'value pair in a sequence.', 'A second' => 'key:value pair.' } ],
+ 12.0 => 'This key is a float.', "?\n" => 'This key had to be protected.',
+ "\a" => 'This key had to be escaped.',
+ "This is a multi-line folded key\n" => "Whose value is also multi-line.\n",
+ [ 'This key', 'is a sequence' ] => [ 'With a sequence value.' ] } }, <<EOY
+
+empty: {}
+in-line: { one: 1, two: 2 }
+spanning: { one: 1,
+ two: 2 }
+nested:
+ first : First entry
+ second:
+ key: Subordinate mapping
+ third:
+ - Subordinate sequence
+ - { }
+ - Previous mapping is empty.
+ - A key: value pair in a sequence.
+ A second: key:value pair.
+ - The previous entry is equal to the following one.
+ -
+ A key: value pair in a sequence.
+ A second: key:value pair.
+ !float 12 : This key is a float.
+ ? >
+ ?
+ : This key had to be protected.
+ "\\a" : This key had to be escaped.
+ ? >
+ This is a
+ multi-line
+ folded key
+ : >
+ Whose value is
+ also multi-line.
+ ?
+ - This key
+ - is a sequence
+ :
+ - With a sequence value.
+# The following parses correctly,
+# but Ruby 1.6.* fails the comparison!
+# ?
+# This: key
+# is a: mapping
+# :
+# with a: mapping value.
+EOY
+ )
+ end
+
+ def test_spec_builtin_literal_blocks
+ # Assortment of literal scalar blocks
+ assert_parse_only(
+ {"both are equal to"=>" This has no newline.", "is equal to"=>"The \\ ' \" characters may be\nfreely used. Leading white\n space is significant.\n\nLine breaks are significant.\nThus this value contains one\nempty line and ends with a\nsingle line break, but does\nnot start with one.\n", "also written as"=>" This has no newline.", "indented and chomped"=>" This has no newline.", "empty"=>"", "literal"=>"The \\ ' \" characters may be\nfreely used. Leading white\n space is significant.\n\nLine breaks are significant.\nThus this value contains one\nempty line and ends with a\nsingle line break, but does\nnot start with one.\n"}, <<EOY
+empty: |
+
+literal: |
+ The \\\ ' " characters may be
+ freely used. Leading white
+ space is significant.
+
+ Line breaks are significant.
+ Thus this value contains one
+ empty line and ends with a
+ single line break, but does
+ not start with one.
+
+is equal to: "The \\\\ ' \\" characters may \\
+ be\\nfreely used. Leading white\\n space \\
+ is significant.\\n\\nLine breaks are \\
+ significant.\\nThus this value contains \\
+ one\\nempty line and ends with a\\nsingle \\
+ line break, but does\\nnot start with one.\\n"
+
+# Comments may follow a nested
+# scalar value. They must be
+# less indented.
+
+# Modifiers may be combined in any order.
+indented and chomped: |2-
+ This has no newline.
+
+also written as: |-2
+ This has no newline.
+
+both are equal to: " This has no newline."
+EOY
+ )
+
+ str1 = "This has one newline.\n"
+ str2 = "This has no newline."
+ str3 = "This has two newlines.\n\n"
+ assert_parse_only(
+ { 'clipped' => str1, 'same as "clipped" above' => str1,
+ 'stripped' => str2, 'same as "stripped" above' => str2,
+ 'kept' => str3, 'same as "kept" above' => str3 }, <<EOY
+clipped: |
+ This has one newline.
+
+same as "clipped" above: "This has one newline.\\n"
+
+stripped: |-
+ This has no newline.
+
+same as "stripped" above: "This has no newline."
+
+kept: |+
+ This has two newlines.
+
+same as "kept" above: "This has two newlines.\\n\\n"
+
+EOY
+ )
+ end
+
+ def test_spec_span_single_quote
+ assert_parse_only( {"third"=>"a single quote ' must be escaped.", "second"=>"! : \\ etc. can be used freely.", "is same as"=>"this contains six spaces\nand one line break", "empty"=>"", "span"=>"this contains six spaces\nand one line break"}, <<EOY
+empty: ''
+second: '! : \\ etc. can be used freely.'
+third: 'a single quote '' must be escaped.'
+span: 'this contains
+ six spaces
+
+ and one
+ line break'
+is same as: "this contains six spaces\\nand one line break"
+EOY
+ )
+ end
+
+ def test_spec_span_double_quote
+ assert_parse_only( {"is equal to"=>"this contains four spaces", "third"=>"a \" or a \\ must be escaped.", "second"=>"! : etc. can be used freely.", "empty"=>"", "fourth"=>"this value ends with an LF.\n", "span"=>"this contains four spaces"}, <<EOY
+empty: ""
+second: "! : etc. can be used freely."
+third: "a \\\" or a \\\\ must be escaped."
+fourth: "this value ends with an LF.\\n"
+span: "this contains
+ four \\
+ spaces"
+is equal to: "this contains four spaces"
+EOY
+ )
+ end
+
+ def test_spec_builtin_time
+ # Time
+ assert_parse_only(
+ { "space separated" => mktime( 2001, 12, 14, 21, 59, 43, ".10", "-05:00" ),
+ "canonical" => mktime( 2001, 12, 15, 2, 59, 43, ".10" ),
+ "date (noon UTC)" => Date.new( 2002, 12, 14),
+ "valid iso8601" => mktime( 2001, 12, 14, 21, 59, 43, ".10", "-05:00" ) }, <<EOY
+canonical: 2001-12-15T02:59:43.1Z
+valid iso8601: 2001-12-14t21:59:43.10-05:00
+space separated: 2001-12-14 21:59:43.10 -05:00
+date (noon UTC): 2002-12-14
+EOY
+ )
+ end
+
+ def test_spec_builtin_binary
+ arrow_gif = "GIF89a\f\000\f\000\204\000\000\377\377\367\365\365\356\351\351\345fff\000\000\000\347\347\347^^^\363\363\355\216\216\216\340\340\340\237\237\237\223\223\223\247\247\247\236\236\236iiiccc\243\243\243\204\204\204\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371!\376\016Made with GIMP\000,\000\000\000\000\f\000\f\000\000\005, \216\2010\236\343@\024\350i\020\304\321\212\010\034\317\200M$z\357\3770\205p\270\2601f\r\e\316\001\303\001\036\020' \202\n\001\000;"
+ assert_parse_only(
+ { 'canonical' => arrow_gif, 'base64' => arrow_gif,
+ 'description' => "The binary value above is a tiny arrow encoded as a gif image.\n" }, <<EOY
+canonical: !binary "\\
+ R0lGODlhDAAMAIQAAP//9/X17unp5WZmZgAAAOf\\
+ n515eXvPz7Y6OjuDg4J+fn5OTk6enp56enmlpaW\\
+ NjY6Ojo4SEhP/++f/++f/++f/++f/++f/++f/++\\
+ f/++f/++f/++f/++f/++f/++f/++SH+Dk1hZGUg\\
+ d2l0aCBHSU1QACwAAAAADAAMAAAFLCAgjoEwnuN\\
+ AFOhpEMTRiggcz4BNJHrv/zCFcLiwMWYNG84Bww\\
+ EeECcgggoBADs="
+base64: !binary |
+ R0lGODlhDAAMAIQAAP//9/X17unp5WZmZgAAAOf
+ n515eXvPz7Y6OjuDg4J+fn5OTk6enp56enmlpaW
+ NjY6Ojo4SEhP/++f/++f/++f/++f/++f/++f/++
+ f/++f/++f/++f/++f/++f/++f/++SH+Dk1hZGUg
+ d2l0aCBHSU1QACwAAAAADAAMAAAFLCAgjoEwnuN
+ AFOhpEMTRiggcz4BNJHrv/zCFcLiwMWYNG84Bww
+ EeECcgggoBADs=
+description: >
+ The binary value above is a tiny arrow
+ encoded as a gif image.
+EOY
+ )
+ end
+ def test_ruby_regexp
+ # Test Ruby regular expressions
+ assert_to_yaml(
+ { 'simple' => /a.b/, 'complex' => %r'\A"((?:[^"]|\")+)"',
+ 'case-insensitive' => /George McFly/i }, <<EOY
+case-insensitive: !ruby/regexp "/George McFly/i"
+complex: !ruby/regexp "/\\\\A\\"((?:[^\\"]|\\\\\\")+)\\"/"
+simple: !ruby/regexp "/a.b/"
+EOY
+ )
+ end
+
+ #
+ # Test of Ranges
+ #
+ def test_ranges
+
+ # Simple numeric
+ assert_to_yaml( 1..3, <<EOY )
+--- !ruby/range 1..3
+EOY
+
+ # Simple alphabetic
+ assert_to_yaml( 'a'..'z', <<EOY )
+--- !ruby/range a..z
+EOY
+
+ # Float
+ assert_to_yaml( 10.5...30.3, <<EOY )
+--- !ruby/range 10.5...30.3
+EOY
+
+ end
+
+ def test_ruby_struct
+ # Ruby structures
+ book_struct = Struct::new( "MyBookStruct", :author, :title, :year, :isbn )
+ assert_to_yaml(
+ [ book_struct.new( "Yukihiro Matsumoto", "Ruby in a Nutshell", 2002, "0-596-00214-9" ),
+ book_struct.new( [ 'Dave Thomas', 'Andy Hunt' ], "The Pickaxe", 2002,
+ book_struct.new( "This should be the ISBN", "but I have another struct here", 2002, "None" )
+ ) ], <<EOY
+- !ruby/struct:MyBookStruct
+ author: Yukihiro Matsumoto
+ title: Ruby in a Nutshell
+ year: 2002
+ isbn: 0-596-00214-9
+- !ruby/struct:MyBookStruct
+ author:
+ - Dave Thomas
+ - Andy Hunt
+ title: The Pickaxe
+ year: 2002
+ isbn: !ruby/struct:MyBookStruct
+ author: This should be the ISBN
+ title: but I have another struct here
+ year: 2002
+ isbn: None
+EOY
+ )
+
+ assert_to_yaml( Psych_Tests::StructTest.new( 123 ), <<EOY )
+--- !ruby/struct:Psych_Tests::StructTest
+c: 123
+EOY
+
+ end
+
+ def test_ruby_rational
+ assert_to_yaml( Rational(1, 2), <<EOY )
+--- !ruby/object:Rational
+numerator: 1
+denominator: 2
+EOY
+
+ # Read Psych dumped by the ruby 1.8.3.
+ assert_to_yaml( Rational(1, 2), "!ruby/object:Rational 1/2\n" )
+ assert_raises( ArgumentError ) { Psych.load("!ruby/object:Rational INVALID/RATIONAL\n") }
+ end
+
+ def test_ruby_complex
+ assert_to_yaml( Complex(3, 4), <<EOY )
+--- !ruby/object:Complex
+image: 4
+real: 3
+EOY
+
+ # Read Psych dumped by the ruby 1.8.3.
+ assert_to_yaml( Complex(3, 4), "!ruby/object:Complex 3+4i\n" )
+ assert_raises( ArgumentError ) { Psych.load("!ruby/object:Complex INVALID+COMPLEXi\n") }
+ end
+
+ def test_emitting_indicators
+ assert_to_yaml( "Hi, from Object 1. You passed: please, pretty please", <<EOY
+--- "Hi, from Object 1. You passed: please, pretty please"
+EOY
+ )
+ end
+
+ ##
+ ## Test the Psych::Stream class -- INACTIVE at the moment
+ ##
+ #def test_document
+ # y = Psych::Stream.new( :Indent => 2, :UseVersion => 0 )
+ # y.add(
+ # { 'hi' => 'hello', 'map' =>
+ # { 'good' => 'two' },
+ # 'time' => Time.now,
+ # 'try' => /^po(.*)$/,
+ # 'bye' => 'goodbye'
+ # }
+ # )
+ # y.add( { 'po' => 'nil', 'oper' => 90 } )
+ # y.add( { 'hi' => 'wow!', 'bye' => 'wow!' } )
+ # y.add( { [ 'Red Socks', 'Boston' ] => [ 'One', 'Two', 'Three' ] } )
+ # y.add( [ true, false, false ] )
+ #end
+
+ #
+ # Test YPath choices parsing
+ #
+ #def test_ypath_parsing
+ # assert_path_segments( "/*/((one|three)/name|place)|//place",
+ # [ ["*", "one", "name"],
+ # ["*", "three", "name"],
+ # ["*", "place"],
+ # ["/", "place"] ]
+ # )
+ #end
+
+ #
+ # Tests from Tanaka Akira on [ruby-core]
+ #
+ def test_akira
+
+ # Commas in plain scalars [ruby-core:1066]
+ assert_to_yaml(
+ {"A"=>"A,","B"=>"B"}, <<EOY
+A: "A,"
+B: B
+EOY
+ )
+
+ # Double-quoted keys [ruby-core:1069]
+ assert_to_yaml(
+ {"1"=>2, "2"=>3}, <<EOY
+'1': 2
+"2": 3
+EOY
+ )
+
+ # Anchored mapping [ruby-core:1071]
+ assert_to_yaml(
+ [{"a"=>"b"}] * 2, <<EOY
+- &id001
+ a: b
+- *id001
+EOY
+ )
+
+ # Stress test [ruby-core:1071]
+ # a = []; 1000.times { a << {"a"=>"b", "c"=>"d"} }
+ # Psych::load( a.to_yaml )
+
+ end
+
+ #
+ # Test Time.now cycle
+ #
+ def test_time_now_cycle
+ #
+ # From Minero Aoki [ruby-core:2305]
+ #
+ #require 'yaml'
+ t = Time.now
+ t = Time.at(t.tv_sec, t.tv_usec)
+ 5.times do
+ assert_cycle(t)
+ end
+ end
+
+ #
+ # Test Range cycle
+ #
+ def test_range_cycle
+ #
+ # From Minero Aoki [ruby-core:02306]
+ #
+ assert_cycle("a".."z")
+
+ #
+ # From Nobu Nakada [ruby-core:02311]
+ #
+ assert_cycle(0..1)
+ assert_cycle(1.0e20 .. 2.0e20)
+ assert_cycle("0".."1")
+ assert_cycle(".."..."...")
+ assert_cycle(".rb"..".pl")
+ assert_cycle(".rb"...".pl")
+ assert_cycle('"'...".")
+ assert_cycle("'"...".")
+ end
+
+ #
+ # Circular references
+ #
+ def test_circular_references
+ a = []; a[0] = a; a[1] = a
+ inspect_str = "[[...], [...]]"
+ assert_equal( inspect_str, Psych::load(Psych.dump(a)).inspect )
+ end
+
+ #
+ # Test Symbol cycle
+ #
+ def test_symbol_cycle
+ #
+ # From Aaron Schrab [ruby-Bugs:2535]
+ #
+ assert_cycle(:"^foo")
+ end
+
+ #
+ # Test Numeric cycle
+ #
+ class NumericTest < Numeric
+ def initialize(value)
+ @value = value
+ end
+ def ==(other)
+ @value == other.instance_eval{ @value }
+ end
+ end
+ def test_numeric_cycle
+ assert_cycle(1) # Fixnum
+ assert_cycle(111111111111111111111111111111111) # Bignum
+ assert_cycle(NumericTest.new(3)) # Subclass of Numeric
+ end
+
+ #
+ # Test empty map/seq in map cycle
+ #
+ def test_empty_map_key
+ #
+ # empty seq as key
+ #
+ assert_cycle({[]=>""})
+
+ #
+ # empty map as key
+ #
+ assert_cycle({{}=>""})
+ end
+
+ #
+ # contributed by riley lynch [ruby-Bugs-8548]
+ #
+ def test_object_id_collision
+ omap = Psych::Omap.new
+ 1000.times { |i| omap["key_#{i}"] = { "value" => i } }
+ raise "id collision in ordered map" if Psych.dump(omap) =~ /id\d+/
+ end
+
+ def test_date_out_of_range
+ Psych::load('1900-01-01T00:00:00+00:00')
+ end
+
+ def test_normal_exit
+ Psych.load("2000-01-01 00:00:00.#{"0"*1000} +00:00\n")
+ # '[ruby-core:13735]'
+ end
+end
diff --git a/test/psych/visitors/test_emitter.rb b/test/psych/visitors/test_emitter.rb
new file mode 100644
index 0000000..42987d1
--- /dev/null
+++ b/test/psych/visitors/test_emitter.rb
@@ -0,0 +1,124 @@
+require 'test/psych/helper'
+
+module Psych
+ module Visitors
+ class TestEmitter < TestCase
+ def setup
+ super
+ @io = StringIO.new
+ @visitor = Visitors::Emitter.new @io
+ end
+
+ def test_stream
+ s = Nodes::Stream.new
+ @visitor.accept s
+ assert_equal '', @io.string
+ end
+
+ def test_document
+ s = Nodes::Stream.new
+ doc = Nodes::Document.new [1,1]
+ scalar = Nodes::Scalar.new 'hello world'
+
+ doc.children << scalar
+ s.children << doc
+
+ @visitor.accept s
+
+ assert_match(/1.1/, @io.string)
+ assert_equal @io.string, s.to_yaml
+ end
+
+ def test_document_implicit_end
+ s = Nodes::Stream.new
+ doc = Nodes::Document.new
+ mapping = Nodes::Mapping.new
+ mapping.children << Nodes::Scalar.new('key')
+ mapping.children << Nodes::Scalar.new('value')
+ doc.children << mapping
+ s.children << doc
+
+ @visitor.accept s
+
+ assert_match(/key: value/, @io.string)
+ assert_equal @io.string, s.to_yaml
+ assert(/\.\.\./ !~ s.to_yaml)
+ end
+
+ def test_scalar
+ s = Nodes::Stream.new
+ doc = Nodes::Document.new
+ scalar = Nodes::Scalar.new 'hello world'
+
+ doc.children << scalar
+ s.children << doc
+
+ @visitor.accept s
+
+ assert_match(/hello/, @io.string)
+ assert_equal @io.string, s.to_yaml
+ end
+
+ def test_scalar_with_tag
+ s = Nodes::Stream.new
+ doc = Nodes::Document.new
+ scalar = Nodes::Scalar.new 'hello world', nil, '!str', false, false, 5
+
+ doc.children << scalar
+ s.children << doc
+
+ @visitor.accept s
+
+ assert_match(/str/, @io.string)
+ assert_match(/hello/, @io.string)
+ assert_equal @io.string, s.to_yaml
+ end
+
+ def test_sequence
+ s = Nodes::Stream.new
+ doc = Nodes::Document.new
+ scalar = Nodes::Scalar.new 'hello world'
+ seq = Nodes::Sequence.new
+
+ seq.children << scalar
+ doc.children << seq
+ s.children << doc
+
+ @visitor.accept s
+
+ assert_match(/- hello/, @io.string)
+ assert_equal @io.string, s.to_yaml
+ end
+
+ def test_mapping
+ s = Nodes::Stream.new
+ doc = Nodes::Document.new
+ mapping = Nodes::Mapping.new
+ mapping.children << Nodes::Scalar.new('key')
+ mapping.children << Nodes::Scalar.new('value')
+ doc.children << mapping
+ s.children << doc
+
+ @visitor.accept s
+
+ assert_match(/key: value/, @io.string)
+ assert_equal @io.string, s.to_yaml
+ end
+
+ def test_alias
+ s = Nodes::Stream.new
+ doc = Nodes::Document.new
+ mapping = Nodes::Mapping.new
+ mapping.children << Nodes::Scalar.new('key', 'A')
+ mapping.children << Nodes::Alias.new('A')
+ doc.children << mapping
+ s.children << doc
+
+ @visitor.accept s
+
+ assert_match(/&A key: \*A/, @io.string)
+ assert_equal @io.string, s.to_yaml
+ end
+ end
+ end
+end
diff --git a/test/psych/visitors/test_to_ruby.rb b/test/psych/visitors/test_to_ruby.rb
new file mode 100644
index 0000000..dc02fbc
--- /dev/null
+++ b/test/psych/visitors/test_to_ruby.rb
@@ -0,0 +1,323 @@
+require 'test/psych/helper'
+
+module Psych
+ module Visitors
+ class TestToRuby < TestCase
+ def setup
+ super
+ @visitor = ToRuby.new
+ end
+
+ def test_object
+ mapping = Nodes::Mapping.new nil, "!ruby/object"
+ mapping.children << Nodes::Scalar.new('foo')
+ mapping.children << Nodes::Scalar.new('bar')
+
+ o = mapping.to_ruby
+ assert_equal 'bar', o.instance_variable_get(:@foo)
+ end
+
+ def test_awesome
+ Psych.load('1900-01-01T00:00:00+00:00')
+ end
+
+ def test_legacy_struct
+ foo = Struct.new('AWESOME', :bar)
+ assert_equal foo.new('baz'), Psych.load(<<-eoyml)
+!ruby/struct:AWESOME
+ bar: baz
+ eoyml
+ end
+
+ def test_binary
+ gif = "GIF89a\f\x00\f\x00\x84\x00\x00\xFF\xFF\xF7\xF5\xF5\xEE\xE9\xE9\xE5fff\x00\x00\x00\xE7\xE7\xE7^^^\xF3\xF3\xED\x8E\x8E\x8E\xE0\xE0\xE0\x9F\x9F\x9F\x93\x93\x93\xA7\xA7\xA7\x9E\x9E\x9Eiiiccc\xA3\xA3\xA3\x84\x84\x84\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9!\xFE\x0EMade with GIMP\x00,\x00\x00\x00\x00\f\x00\f\x00\x00\x05, \x8E\x810\x9E\xE3@\x14\xE8i\x10\xC4\xD1\x8A\b\x1C\xCF\x80M$z\xEF\xFF0\x85p\xB8\xB01f\r\e\xCE\x01\xC3\x01\x1E\x10' \x82\n\x01\x00;"
+
+ hash = Psych.load(<<-'eoyaml')
+canonical: !!binary "\
+ R0lGODlhDAAMAIQAAP//9/X17unp5WZmZgAAAOfn515eXvPz7Y6OjuDg4J+fn5\
+ OTk6enp56enmlpaWNjY6Ojo4SEhP/++f/++f/++f/++f/++f/++f/++f/++f/+\
+ +f/++f/++f/++f/++f/++SH+Dk1hZGUgd2l0aCBHSU1QACwAAAAADAAMAAAFLC\
+ AgjoEwnuNAFOhpEMTRiggcz4BNJHrv/zCFcLiwMWYNG84BwwEeECcgggoBADs="
+generic: !binary |
+ R0lGODlhDAAMAIQAAP//9/X17unp5WZmZgAAAOfn515eXvPz7Y6OjuDg4J+fn5
+ OTk6enp56enmlpaWNjY6Ojo4SEhP/++f/++f/++f/++f/++f/++f/++f/++f/+
+ +f/++f/++f/++f/++f/++SH+Dk1hZGUgd2l0aCBHSU1QACwAAAAADAAMAAAFLC
+ AgjoEwnuNAFOhpEMTRiggcz4BNJHrv/zCFcLiwMWYNG84BwwEeECcgggoBADs=
+description:
+ The binary value above is a tiny arrow encoded as a gif image.
+ eoyaml
+ assert_equal gif, hash['canonical']
+ assert_equal gif, hash['generic']
+ end
+
+ A = Struct.new(:foo)
+
+ def test_struct
+ s = A.new('bar')
+
+ mapping = Nodes::Mapping.new nil, "!ruby/struct:#{s.class}"
+ mapping.children << Nodes::Scalar.new('foo')
+ mapping.children << Nodes::Scalar.new('bar')
+
+ ruby = mapping.to_ruby
+
+ assert_equal s.class, ruby.class
+ assert_equal s.foo, ruby.foo
+ assert_equal s, ruby
+ end
+
+ def test_anon_struct_legacy
+ s = Struct.new(:foo).new('bar')
+
+ mapping = Nodes::Mapping.new nil, '!ruby/struct:'
+ mapping.children << Nodes::Scalar.new('foo')
+ mapping.children << Nodes::Scalar.new('bar')
+
+ assert_equal s.foo, mapping.to_ruby.foo
+ end
+
+ def test_anon_struct
+ s = Struct.new(:foo).new('bar')
+
+ mapping = Nodes::Mapping.new nil, '!ruby/struct'
+ mapping.children << Nodes::Scalar.new('foo')
+ mapping.children << Nodes::Scalar.new('bar')
+
+ assert_equal s.foo, mapping.to_ruby.foo
+ end
+
+ def test_exception
+ exc = Exception.new 'hello'
+
+ mapping = Nodes::Mapping.new nil, '!ruby/exception'
+ mapping.children << Nodes::Scalar.new('message')
+ mapping.children << Nodes::Scalar.new('hello')
+
+ ruby = mapping.to_ruby
+
+ assert_equal exc.class, ruby.class
+ assert_equal exc.message, ruby.message
+ end
+
+ def test_regexp
+ node = Nodes::Scalar.new('/foo/', nil, '!ruby/regexp')
+ assert_equal(/foo/, node.to_ruby)
+
+ node = Nodes::Scalar.new('/foo/m', nil, '!ruby/regexp')
+ assert_equal(/foo/m, node.to_ruby)
+
+ node = Nodes::Scalar.new('/foo/ix', nil, '!ruby/regexp')
+ assert_equal(/foo/ix, node.to_ruby)
+ end
+
+ def test_time
+ now = Time.now
+ formatted = now.strftime("%Y-%m-%d %H:%M:%S") +
+ ".%06d %+.2d:00" % [now.usec, now.gmt_offset / 3600]
+
+ assert_equal now, Nodes::Scalar.new(formatted).to_ruby
+ end
+
+ def test_time_utc
+ now = Time.now.utc
+ formatted = now.strftime("%Y-%m-%d %H:%M:%S") +
+ ".%06dZ" % [now.usec]
+
+ assert_equal now, Nodes::Scalar.new(formatted).to_ruby
+ end
+
+ def test_time_utc_no_z
+ now = Time.now.utc
+ formatted = now.strftime("%Y-%m-%d %H:%M:%S") +
+ ".%06d" % [now.usec]
+
+ assert_equal now, Nodes::Scalar.new(formatted).to_ruby
+ end
+
+ def test_date
+ d = '1980-12-16'
+ actual = Date.strptime(d, '%Y-%m-%d')
+
+ date = Nodes::Scalar.new(d, nil, 'tag:yaml.org,2002:timestamp', false)
+
+ assert_equal actual, date.to_ruby
+ end
+
+ def test_rational
+ mapping = Nodes::Mapping.new nil, '!ruby/object:Rational'
+ mapping.children << Nodes::Scalar.new('denominator')
+ mapping.children << Nodes::Scalar.new('2')
+ mapping.children << Nodes::Scalar.new('numerator')
+ mapping.children << Nodes::Scalar.new('1')
+
+ assert_equal Rational(1,2), mapping.to_ruby
+ end
+
+ def test_complex
+ mapping = Nodes::Mapping.new nil, '!ruby/object:Complex'
+ mapping.children << Nodes::Scalar.new('image')
+ mapping.children << Nodes::Scalar.new('2')
+ mapping.children << Nodes::Scalar.new('real')
+ mapping.children << Nodes::Scalar.new('1')
+
+ assert_equal Complex(1,2), mapping.to_ruby
+ end
+
+ if RUBY_VERSION >= '1.9'
+ def test_complex_string
+ node = Nodes::Scalar.new '3+4i', nil, "!ruby/object:Complex"
+ assert_equal Complex(3, 4), node.to_ruby
+ end
+
+ def test_rational_string
+ node = Nodes::Scalar.new '1/2', nil, "!ruby/object:Rational"
+ assert_equal Rational(1, 2), node.to_ruby
+ end
+ end
+
+ def test_range_string
+ node = Nodes::Scalar.new '1..2', nil, "!ruby/range"
+ assert_equal 1..2, node.to_ruby
+ end
+
+ def test_range_string_triple
+ node = Nodes::Scalar.new '1...3', nil, "!ruby/range"
+ assert_equal 1...3, node.to_ruby
+ end
+
+ def test_integer
+ i = Nodes::Scalar.new('1', nil, 'tag:yaml.org,2002:int')
+ assert_equal 1, i.to_ruby
+
+ assert_equal 1, Nodes::Scalar.new('1').to_ruby
+
+ i = Nodes::Scalar.new('-1', nil, 'tag:yaml.org,2002:int')
+ assert_equal(-1, i.to_ruby)
+
+ assert_equal(-1, Nodes::Scalar.new('-1').to_ruby)
+ assert_equal 1, Nodes::Scalar.new('+1').to_ruby
+ end
+
+ def test_int_ignore
+ ['1,000', '1_000'].each do |num|
+ i = Nodes::Scalar.new(num, nil, 'tag:yaml.org,2002:int')
+ assert_equal 1000, i.to_ruby
+
+ assert_equal 1000, Nodes::Scalar.new(num).to_ruby
+ end
+ end
+
+ def test_float_ignore
+ ['1,000.3', '1_000.3'].each do |num|
+ i = Nodes::Scalar.new(num, nil, 'tag:yaml.org,2002:float')
+ assert_equal 1000.3, i.to_ruby
+
+ i = Nodes::Scalar.new(num, nil, '!float')
+ assert_equal 1000.3, i.to_ruby
+
+ assert_equal 1000.3, Nodes::Scalar.new(num).to_ruby
+ end
+ end
+
+ # http://yaml.org/type/bool.html
+ def test_boolean_true
+ %w{ yes Yes YES true True TRUE on On ON }.each do |t|
+ i = Nodes::Scalar.new(t, nil, 'tag:yaml.org,2002:bool')
+ assert_equal true, i.to_ruby
+ assert_equal true, Nodes::Scalar.new(t).to_ruby
+ end
+ end
+
+ # http://yaml.org/type/bool.html
+ def test_boolean_false
+ %w{ no No NO false False FALSE off Off OFF }.each do |t|
+ i = Nodes::Scalar.new(t, nil, 'tag:yaml.org,2002:bool')
+ assert_equal false, i.to_ruby
+ assert_equal false, Nodes::Scalar.new(t).to_ruby
+ end
+ end
+
+ def test_float
+ i = Nodes::Scalar.new('12', nil, 'tag:yaml.org,2002:float')
+ assert_equal 12.0, i.to_ruby
+
+ i = Nodes::Scalar.new('1.2', nil, 'tag:yaml.org,2002:float')
+ assert_equal 1.2, i.to_ruby
+
+ i = Nodes::Scalar.new('1.2')
+ assert_equal 1.2, i.to_ruby
+
+ assert_equal 1, Nodes::Scalar.new('.Inf').to_ruby.infinite?
+ assert_equal 1, Nodes::Scalar.new('.inf').to_ruby.infinite?
+ assert_equal 1, Nodes::Scalar.new('.Inf', nil, 'tag:yaml.org,2002:float').to_ruby.infinite?
+
+ assert_equal(-1, Nodes::Scalar.new('-.inf').to_ruby.infinite?)
+ assert_equal(-1, Nodes::Scalar.new('-.Inf').to_ruby.infinite?)
+ assert_equal(-1, Nodes::Scalar.new('-.Inf', nil, 'tag:yaml.org,2002:float').to_ruby.infinite?)
+
+ assert Nodes::Scalar.new('.NaN').to_ruby.nan?
+ assert Nodes::Scalar.new('.NaN', nil, 'tag:yaml.org,2002:float').to_ruby.nan?
+ end
+
+ def test_exp_float
+ exp = 1.2e+30
+
+ i = Nodes::Scalar.new(exp.to_s, nil, 'tag:yaml.org,2002:float')
+ assert_equal exp, i.to_ruby
+
+ assert_equal exp, Nodes::Scalar.new(exp.to_s).to_ruby
+ end
+
+ def test_scalar
+ scalar = Nodes::Scalar.new('foo')
+ assert_equal 'foo', @visitor.accept(scalar)
+ assert_equal 'foo', scalar.to_ruby
+ end
+
+ def test_sequence
+ seq = Nodes::Sequence.new
+ seq.children << Nodes::Scalar.new('foo')
+ seq.children << Nodes::Scalar.new('bar')
+
+ assert_equal %w{ foo bar }, seq.to_ruby
+ end
+
+ def test_mapping
+ mapping = Nodes::Mapping.new
+ mapping.children << Nodes::Scalar.new('foo')
+ mapping.children << Nodes::Scalar.new('bar')
+ assert_equal({'foo' => 'bar'}, mapping.to_ruby)
+ end
+
+ def test_document
+ doc = Nodes::Document.new
+ doc.children << Nodes::Scalar.new('foo')
+ assert_equal 'foo', doc.to_ruby
+ end
+
+ def test_stream
+ a = Nodes::Document.new
+ a.children << Nodes::Scalar.new('foo')
+
+ b = Nodes::Document.new
+ b.children << Nodes::Scalar.new('bar')
+
+ stream = Nodes::Stream.new
+ stream.children << a
+ stream.children << b
+
+ assert_equal %w{ foo bar }, stream.to_ruby
+ end
+
+ def test_alias
+ seq = Nodes::Sequence.new
+ seq.children << Nodes::Scalar.new('foo', 'A')
+ seq.children << Nodes::Alias.new('A')
+
+ list = seq.to_ruby
+ assert_equal %w{ foo foo }, list
+ assert_equal list[0].object_id, list[1].object_id
+ end
+ end
+ end
+end
diff --git a/test/psych/visitors/test_yaml_tree.rb b/test/psych/visitors/test_yaml_tree.rb
new file mode 100644
index 0000000..a0a2336
--- /dev/null
+++ b/test/psych/visitors/test_yaml_tree.rb
@@ -0,0 +1,140 @@
+require 'test/psych/helper'
+
+module Psych
+ module Visitors
+ class TestYAMLTree < TestCase
+ def setup
+ super
+ @v = Visitors::YAMLTree.new
+ end
+
+ def test_object_has_no_class
+ yaml = Psych.dump(Object.new)
+ assert(Psych.dump(Object.new) !~ /Object/, yaml)
+ end
+
+ def test_struct_const
+ foo = Struct.new("Foo", :bar)
+ assert_cycle foo.new('bar')
+ end
+
+ A = Struct.new(:foo)
+
+ def test_struct
+ assert_cycle A.new('bar')
+ end
+
+ def test_struct_anon
+ s = Struct.new(:foo).new('bar')
+ obj = Psych.load(Psych.dump(s))
+ assert_equal s.foo, obj.foo
+ end
+
+ def test_exception
+ ex = Exception.new 'foo'
+ loaded = Psych.load(Psych.dump(ex))
+
+ assert_equal ex.message, loaded.message
+ assert_equal ex.class, loaded.class
+ end
+
+ def test_regexp
+ assert_cycle(/foo/)
+ assert_cycle(/foo/i)
+ assert_cycle(/foo/mx)
+ end
+
+ def test_time
+ assert_cycle Time.now
+ end
+
+ def test_date
+ date = Date.strptime('2002-12-14', '%Y-%m-%d')
+ assert_cycle date
+ end
+
+ def test_rational
+ assert_cycle Rational(1,2)
+ end
+
+ def test_complex
+ assert_cycle Complex(1,2)
+ end
+
+ def test_scalar
+ assert_cycle 'foo'
+ assert_cycle ':foo'
+ assert_cycle ''
+ assert_cycle ':'
+ end
+
+ def test_boolean
+ assert_cycle true
+ assert_cycle 'true'
+ assert_cycle false
+ assert_cycle 'false'
+ end
+
+ def test_range_inclusive
+ assert_cycle 1..2
+ end
+
+ def test_range_exclusive
+ assert_cycle 1...2
+ end
+
+ def test_anon_class
+ assert_raises(TypeError) do
+ @v.accept Class.new
+ end
+
+ assert_raises(TypeError) do
+ Psych.dump(Class.new)
+ end
+ end
+
+ def test_hash
+ assert_cycle('a' => 'b')
+ end
+
+ def test_list
+ assert_cycle(%w{ a b })
+ assert_cycle([1, 2.2])
+ end
+
+ def test_symbol
+ assert_cycle :foo
+ end
+
+ def test_int
+ assert_cycle 1
+ assert_cycle(-1)
+ assert_cycle '1'
+ assert_cycle '-1'
+ end
+
+ def test_float
+ assert_cycle 1.2
+ assert_cycle '1.2'
+
+ assert Psych.load(Psych.dump(0.0 / 0.0)).nan?
+ assert_equal 1, Psych.load(Psych.dump(1 / 0.0)).infinite?
+ assert_equal(-1, Psych.load(Psych.dump(-1 / 0.0)).infinite?)
+ end
+
+ # http://yaml.org/type/null.html
+ def test_nil
+ assert_cycle nil
+ assert_equal nil, Psych.load('null')
+ assert_equal nil, Psych.load('Null')
+ assert_equal nil, Psych.load('NULL')
+ assert_equal nil, Psych.load('~')
+ assert_equal({'foo' => nil}, Psych.load('foo: '))
+
+ assert_cycle 'null'
+ assert_cycle 'nUll'
+ assert_cycle '~'
+ end
+ end
+ end
+end