Changeset 58 for branches/pyyaml3000/lib/yaml/constructor.py

Timestamp:

02/25/06 11:08:26 (6 years ago)

Author:

xi

Message:

Ready for the initial release.

Files:

• branches/pyyaml3000/lib/yaml/constructor.py (modified) (12 diffs)

branches/pyyaml3000/lib/yaml/constructor.py

@@ -93 +93 @@
                     raise ConstructorError("while constructing a mapping", node.start_marker,
                             "found duplicate merge key", key_node.start_marker)
-                    value_node = node.value[key_node]
-                    if isinstance(value_node, MappingNode):
-                        merge = [self.construct_mapping(value_node)]
-                    elif isinstance(value_node, SequenceNode):
-                        merge = []
-                        for subnode in value_node.value:
-                            if not isinstance(subnode, MappingNode):
-                                raise ConstructorError("while constructing a mapping",
-                                        node.start_marker,
-                                        "expected a mapping for merging, but found %s"
-                                        % subnode.id, subnode.start_marker)
-                            merge.append(self.construct_mapping(subnode))
-                        merge.reverse()
-                    else:
-                        raise ConstructorError("while constructing a mapping", node.start_marker,
-                                "expected a mapping or list of mappings for merging, but found %s"
-                                % value_node.id, value_node.start_marker)
+                value_node = node.value[key_node]
+                if isinstance(value_node, MappingNode):
+                    merge = [self.construct_mapping(value_node)]
+                elif isinstance(value_node, SequenceNode):
+                    merge = []
+                    for subnode in value_node.value:
+                        if not isinstance(subnode, MappingNode):
+                            raise ConstructorError("while constructing a mapping",
+                                    node.start_marker,
+                                    "expected a mapping for merging, but found %s"
+                                    % subnode.id, subnode.start_marker)
+                        merge.append(self.construct_mapping(subnode))
+                    merge.reverse()
+                else:
+                    raise ConstructorError("while constructing a mapping", node.start_marker,
+                            "expected a mapping or list of mappings for merging, but found %s"
+                            % value_node.id, value_node.start_marker)
             elif key_node.tag == u'tag:yaml.org,2002:value':
                 if '=' in mapping:
@@ -212 +212 @@
         sign = +1
         if value[0] == '-':
-            value = -1
+            sign = -1
         if value[0] in '+-':
             value = value[1:]
@@ -237 +237 @@
         except (binascii.Error, UnicodeEncodeError), exc:
             raise ConstructorError(None, None,
-                    "failed to decode base64 data: %s" % exc, node.start_mark) 
+                    "failed to decode base64 data: %s" % exc, node.start_marker) 
 
     timestamp_regexp = re.compile(
@@ -243 +243 @@
                 -(?P<month>[0-9][0-9]?)
                 -(?P<day>[0-9][0-9]?)
-                (?:[Tt]|[ \t]+)
+                (?:(?:[Tt]|[ \t]+)
                 (?P<hour>[0-9][0-9]?)
                 :(?P<minute>[0-9][0-9])
@@ -249 +249 @@
                 (?:\.(?P<fraction>[0-9]*))?
                 (?:[ \t]*(?:Z|(?P<tz_hour>[-+][0-9][0-9]?)
-                (?::(?P<tz_minute>[0-9][0-9])?)))?$''', re.X),
+                (?::(?P<tz_minute>[0-9][0-9])?)?))?)?$''', re.X)
 
     def construct_yaml_timestamp(self, node):
         value = self.construct_scalar(node)
-        match = self.timestamp_expr.match(node.value)
+        match = self.timestamp_regexp.match(node.value)
         values = match.groupdict()
         for key in values:
@@ -261 +261 @@
                 values[key] = 0
         fraction = values['fraction']
-        if micro:
+        if fraction:
             while 10*fraction < 1000000:
                 fraction *= 10
@@ -282 +282 @@
                         "expected a mapping of length 1, but found %s" % subnode.id,
                         subnode.start_marker)
-                if len(subnode.value) != 1:
-                    raise ConstructorError("while constructing an ordered map", node.start_marker,
-                            "expected a single mapping item, but found %d items" % len(subnode.value),
-                            subnode.start_marker)
-                key_node = subnode.value.keys()[0]
-                key = self.construct_object(key_node)
-                value = self.construct_object(subnode.value[key_node])
-                omap.append((key, value))
+            if len(subnode.value) != 1:
+                raise ConstructorError("while constructing an ordered map", node.start_marker,
+                        "expected a single mapping item, but found %d items" % len(subnode.value),
+                        subnode.start_marker)
+            key_node = subnode.value.keys()[0]
+            key = self.construct_object(key_node)
+            value = self.construct_object(subnode.value[key_node])
+            omap.append((key, value))
+        return omap
 
     def construct_yaml_pairs(self, node):
@@ -296 +297 @@
             raise ConstructorError("while constructing pairs", node.start_marker,
                     "expected a sequence, but found %s" % node.id, node.start_marker)
-        omap = []
+        pairs = []
         for subnode in node.value:
             if not isinstance(subnode, MappingNode):
@@ -302 +303 @@
                         "expected a mapping of length 1, but found %s" % subnode.id,
                         subnode.start_marker)
-                if len(subnode.value) != 1:
-                    raise ConstructorError("while constructing pairs", node.start_marker,
-                            "expected a single mapping item, but found %d items" % len(subnode.value),
-                            subnode.start_marker)
-                key_node = subnode.value.keys()[0]
-                key = self.construct_object(key_node)
-                value = self.construct_object(subnode.value[key_node])
-                omap.append((key, value))
+            if len(subnode.value) != 1:
+                raise ConstructorError("while constructing pairs", node.start_marker,
+                        "expected a single mapping item, but found %d items" % len(subnode.value),
+                        subnode.start_marker)
+            key_node = subnode.value.keys()[0]
+            key = self.construct_object(key_node)
+            value = self.construct_object(subnode.value[key_node])
+            pairs.append((key, value))
+        return pairs
 
     def construct_yaml_set(self, node):
@@ -350 +352 @@
 
 Constructor.add_constructor(
-        u'tag:yaml.org,2002:timestamp',
-        Constructor.construct_yaml_timestamp)
+        u'tag:yaml.org,2002:binary',
+        Constructor.construct_yaml_binary)
+
+if datetime_available:
+    Constructor.add_constructor(
+            u'tag:yaml.org,2002:timestamp',
+            Constructor.construct_yaml_timestamp)
 
 Constructor.add_constructor(
@@ -385 +392 @@
         super(YAMLObjectMetaclass, cls).__init__(name, bases, kwds)
         if 'yaml_tag' in kwds and kwds['yaml_tag'] is not None:
-            cls.yaml_constructor_class.add_constructor(cls.yaml_tag, cls.from_yaml)
+            cls.yaml_constructor.add_constructor(cls.yaml_tag, cls.from_yaml)
 
 class YAMLObject(object):
@@ -391 +398 @@
     __metaclass__ = YAMLObjectMetaclass
 
-    yaml_constructor_class = Constructor
+    yaml_constructor = Constructor
 
     yaml_tag = None