FM / yaml

/usr/lib64/python2.6/site-packages/yaml/

/usr/lib64/python2.6/site-packages/yaml

Name	Size	Mode	Actions
composer.py	4921	0644	edit dl rm
composer.pyc	4573	0644	edit dl rm
composer.pyo	4573	0644	edit dl rm
constructor.py	25145	0644	edit dl rm
constructor.pyc	22158	0644	edit dl rm
constructor.pyo	22158	0644	edit dl rm
cyaml.py	3290	0644	edit dl rm
cyaml.pyc	3814	0644	edit dl rm
cyaml.pyo	3814	0644	edit dl rm
dumper.py	2719	0644	edit dl rm
dumper.pyc	2567	0644	edit dl rm
dumper.pyo	2567	0644	edit dl rm
emitter.py	43298	0644	edit dl rm
emitter.pyc	32589	0644	edit dl rm
emitter.pyo	32589	0644	edit dl rm
error.py	2559	0644	edit dl rm
error.pyc	2996	0644	edit dl rm
error.pyo	2996	0644	edit dl rm
events.py	2445	0644	edit dl rm
events.pyc	4979	0644	edit dl rm
events.pyo	4979	0644	edit dl rm
loader.py	1132	0644	edit dl rm
loader.pyc	1890	0644	edit dl rm
loader.pyo	1890	0644	edit dl rm
nodes.py	1440	0644	edit dl rm
nodes.pyc	2186	0644	edit dl rm
nodes.pyo	2186	0644	edit dl rm
parser.py	25542	0644	edit dl rm
parser.pyc	14866	0644	edit dl rm
parser.pyo	14802	0644	edit dl rm
reader.py	6746	0644	edit dl rm
reader.pyc	5645	0644	edit dl rm
reader.pyo	5645	0644	edit dl rm
representer.py	17642	0644	edit dl rm
representer.pyc	14808	0644	edit dl rm
representer.pyo	14808	0644	edit dl rm
resolver.py	8972	0644	edit dl rm
resolver.pyc	6734	0644	edit dl rm
resolver.pyo	6734	0644	edit dl rm
scanner.py	52630	0644	edit dl rm
scanner.pyc	33572	0644	edit dl rm
scanner.pyo	33526	0644	edit dl rm
serializer.py	4171	0644	edit dl rm
serializer.pyc	4367	0644	edit dl rm
serializer.pyo	4367	0644	edit dl rm
tokens.py	2573	0644	edit dl rm
tokens.pyc	6528	0644	edit dl rm
tokens.pyo	6528	0644	edit dl rm
__init__.py	9776	0644	edit dl rm
__init__.pyc	11453	0644	edit dl rm
__init__.pyo	11453	0644	edit dl rm

Edit: /usr/lib64/python2.6/site-packages/yaml/constructor.py (25145B)

__all__ = ['BaseConstructor', 'SafeConstructor', 'Constructor',
    'ConstructorError']

from error import *
from nodes import *

import datetime

import binascii, re, sys, types

class ConstructorError(MarkedYAMLError):
    pass

class BaseConstructor(object):

yaml_constructors = {}
    yaml_multi_constructors = {}

def __init__(self):
        self.constructed_objects = {}
        self.recursive_objects = {}
        self.state_generators = []
        self.deep_construct = False

def check_data(self):
        # If there are more documents available?
        return self.check_node()

def get_data(self):
        # Construct and return the next document.
        if self.check_node():
            return self.construct_document(self.get_node())

def get_single_data(self):
        # Ensure that the stream contains a single document and construct it.
        node = self.get_single_node()
        if node is not None:
            return self.construct_document(node)
        return None

def construct_document(self, node):
        data = self.construct_object(node)
        while self.state_generators:
            state_generators = self.state_generators
            self.state_generators = []
            for generator in state_generators:
                for dummy in generator:
                    pass
        self.constructed_objects = {}
        self.recursive_objects = {}
        self.deep_construct = False
        return data

def construct_object(self, node, deep=False):
        if node in self.constructed_objects:
            return self.constructed_objects[node]
        if deep:
            old_deep = self.deep_construct
            self.deep_construct = True
        if node in self.recursive_objects:
            raise ConstructorError(None, None,
                    "found unconstructable recursive node", node.start_mark)
        self.recursive_objects[node] = None
        constructor = None
        tag_suffix = None
        if node.tag in self.yaml_constructors:
            constructor = self.yaml_constructors[node.tag]
        else:
            for tag_prefix in self.yaml_multi_constructors:
                if node.tag.startswith(tag_prefix):
                    tag_suffix = node.tag[len(tag_prefix):]
                    constructor = self.yaml_multi_constructors[tag_prefix]
                    break
            else:
                if None in self.yaml_multi_constructors:
                    tag_suffix = node.tag
                    constructor = self.yaml_multi_constructors[None]
                elif None in self.yaml_constructors:
                    constructor = self.yaml_constructors[None]
                elif isinstance(node, ScalarNode):
                    constructor = self.__class__.construct_scalar
                elif isinstance(node, SequenceNode):
                    constructor = self.__class__.construct_sequence
                elif isinstance(node, MappingNode):
                    constructor = self.__class__.construct_mapping
        if tag_suffix is None:
            data = constructor(self, node)
        else:
            data = constructor(self, tag_suffix, node)
        if isinstance(data, types.GeneratorType):
            generator = data
            data = generator.next()
            if self.deep_construct:
                for dummy in generator:
                    pass
            else:
                self.state_generators.append(generator)
        self.constructed_objects[node] = data
        del self.recursive_objects[node]
        if deep:
            self.deep_construct = old_deep
        return data

def construct_scalar(self, node):
        if not isinstance(node, ScalarNode):
            raise ConstructorError(None, None,
                    "expected a scalar node, but found %s" % node.id,
                    node.start_mark)
        return node.value

def construct_sequence(self, node, deep=False):
        if not isinstance(node, SequenceNode):
            raise ConstructorError(None, None,
                    "expected a sequence node, but found %s" % node.id,
                    node.start_mark)
        return [self.construct_object(child, deep=deep)
                for child in node.value]

def construct_mapping(self, node, deep=False):
        if not isinstance(node, MappingNode):
            raise ConstructorError(None, None,
                    "expected a mapping node, but found %s" % node.id,
                    node.start_mark)
        mapping = {}
        for key_node, value_node in node.value:
            key = self.construct_object(key_node, deep=deep)
            try:
                hash(key)
            except TypeError, exc:
                raise ConstructorError("while constructing a mapping", node.start_mark,
                        "found unacceptable key (%s)" % exc, key_node.start_mark)
            value = self.construct_object(value_node, deep=deep)
            mapping[key] = value
        return mapping

def construct_pairs(self, node, deep=False):
        if not isinstance(node, MappingNode):
            raise ConstructorError(None, None,
                    "expected a mapping node, but found %s" % node.id,
                    node.start_mark)
        pairs = []
        for key_node, value_node in node.value:
            key = self.construct_object(key_node, deep=deep)
            value = self.construct_object(value_node, deep=deep)
            pairs.append((key, value))
        return pairs

def add_constructor(cls, tag, constructor):
        if not 'yaml_constructors' in cls.__dict__:
            cls.yaml_constructors = cls.yaml_constructors.copy()
        cls.yaml_constructors[tag] = constructor
    add_constructor = classmethod(add_constructor)

def add_multi_constructor(cls, tag_prefix, multi_constructor):
        if not 'yaml_multi_constructors' in cls.__dict__:
            cls.yaml_multi_constructors = cls.yaml_multi_constructors.copy()
        cls.yaml_multi_constructors[tag_prefix] = multi_constructor
    add_multi_constructor = classmethod(add_multi_constructor)

class SafeConstructor(BaseConstructor):

def construct_scalar(self, node):
        if isinstance(node, MappingNode):
            for key_node, value_node in node.value:
                if key_node.tag == u'tag:yaml.org,2002:value':
                    return self.construct_scalar(value_node)
        return BaseConstructor.construct_scalar(self, node)

def flatten_mapping(self, node):
        merge = []
        index = 0
        while index < len(node.value):
            key_node, value_node = node.value[index]
            if key_node.tag == u'tag:yaml.org,2002:merge':
                del node.value[index]
                if isinstance(value_node, MappingNode):
                    self.flatten_mapping(value_node)
                    merge.extend(value_node.value)
                elif isinstance(value_node, SequenceNode):
                    submerge = []
                    for subnode in value_node.value:
                        if not isinstance(subnode, MappingNode):
                            raise ConstructorError("while constructing a mapping",
                                    node.start_mark,
                                    "expected a mapping for merging, but found %s"
                                    % subnode.id, subnode.start_mark)
                        self.flatten_mapping(subnode)
                        submerge.append(subnode.value)
                    submerge.reverse()
                    for value in submerge:
                        merge.extend(value)
                else:
                    raise ConstructorError("while constructing a mapping", node.start_mark,
                            "expected a mapping or list of mappings for merging, but found %s"
                            % value_node.id, value_node.start_mark)
            elif key_node.tag == u'tag:yaml.org,2002:value':
                key_node.tag = u'tag:yaml.org,2002:str'
                index += 1
            else:
                index += 1
        if merge:
            node.value = merge + node.value

def construct_mapping(self, node, deep=False):
        if isinstance(node, MappingNode):
            self.flatten_mapping(node)
        return BaseConstructor.construct_mapping(self, node, deep=deep)

def construct_yaml_null(self, node):
        self.construct_scalar(node)
        return None

bool_values = {
        u'yes':     True,
        u'no':      False,
        u'true':    True,
        u'false':   False,
        u'on':      True,
        u'off':     False,
    }

def construct_yaml_bool(self, node):
        value = self.construct_scalar(node)
        return self.bool_values[value.lower()]

def construct_yaml_int(self, node):
        value = str(self.construct_scalar(node))
        value = value.replace('_', '')
        sign = +1
        if value[0] == '-':
            sign = -1
        if value[0] in '+-':
            value = value[1:]
        if value == '0':
            return 0
        elif value.startswith('0b'):
            return sign*int(value[2:], 2)
        elif value.startswith('0x'):
            return sign*int(value[2:], 16)
        elif value[0] == '0':
            return sign*int(value, 8)
        elif ':' in value:
            digits = [int(part) for part in value.split(':')]
            digits.reverse()
            base = 1
            value = 0
            for digit in digits:
                value += digit*base
                base *= 60
            return sign*value
        else:
            return sign*int(value)

inf_value = 1e300
    while inf_value != inf_value*inf_value:
        inf_value *= inf_value
    nan_value = -inf_value/inf_value   # Trying to make a quiet NaN (like C99).

def construct_yaml_float(self, node):
        value = str(self.construct_scalar(node))
        value = value.replace('_', '').lower()
        sign = +1
        if value[0] == '-':
            sign = -1
        if value[0] in '+-':
            value = value[1:]
        if value == '.inf':
            return sign*self.inf_value
        elif value == '.nan':
            return self.nan_value
        elif ':' in value:
            digits = [float(part) for part in value.split(':')]
            digits.reverse()
            base = 1
            value = 0.0
            for digit in digits:
                value += digit*base
                base *= 60
            return sign*value
        else:
            return sign*float(value)

def construct_yaml_binary(self, node):
        value = self.construct_scalar(node)
        try:
            return str(value).decode('base64')
        except (binascii.Error, UnicodeEncodeError), exc:
            raise ConstructorError(None, None,
                    "failed to decode base64 data: %s" % exc, node.start_mark)

timestamp_regexp = re.compile(
            ur'''^(?P<year>[0-9][0-9][0-9][0-9])
                -(?P<month>[0-9][0-9]?)
                -(?P<day>[0-9][0-9]?)
                (?:(?:[Tt]|[ \t]+)
                (?P<hour>[0-9][0-9]?)
                :(?P<minute>[0-9][0-9])
                :(?P<second>[0-9][0-9])
                (?:\.(?P<fraction>[0-9]*))?
                (?:[ \t]*(?P<tz>Z|(?P<tz_sign>[-+])(?P<tz_hour>[0-9][0-9]?)
                (?::(?P<tz_minute>[0-9][0-9]))?))?)?$''', re.X)

def construct_yaml_timestamp(self, node):
        value = self.construct_scalar(node)
        match = self.timestamp_regexp.match(node.value)
        values = match.groupdict()
        year = int(values['year'])
        month = int(values['month'])
        day = int(values['day'])
        if not values['hour']:
            return datetime.date(year, month, day)
        hour = int(values['hour'])
        minute = int(values['minute'])
        second = int(values['second'])
        fraction = 0
        if values['fraction']:
            fraction = values['fraction'][:6]
            while len(fraction) < 6:
                fraction += '0'
            fraction = int(fraction)
        delta = None
        if values['tz_sign']:
            tz_hour = int(values['tz_hour'])
            tz_minute = int(values['tz_minute'] or 0)
            delta = datetime.timedelta(hours=tz_hour, minutes=tz_minute)
            if values['tz_sign'] == '-':
                delta = -delta
        data = datetime.datetime(year, month, day, hour, minute, second, fraction)
        if delta:
            data -= delta
        return data

def construct_yaml_omap(self, node):
        # Note: we do not check for duplicate keys, because it's too
        # CPU-expensive.
        omap = []
        yield omap
        if not isinstance(node, SequenceNode):
            raise ConstructorError("while constructing an ordered map", node.start_mark,
                    "expected a sequence, but found %s" % node.id, node.start_mark)
        for subnode in node.value:
            if not isinstance(subnode, MappingNode):
                raise ConstructorError("while constructing an ordered map", node.start_mark,
                        "expected a mapping of length 1, but found %s" % subnode.id,
                        subnode.start_mark)
            if len(subnode.value) != 1:
                raise ConstructorError("while constructing an ordered map", node.start_mark,
                        "expected a single mapping item, but found %d items" % len(subnode.value),
                        subnode.start_mark)
            key_node, value_node = subnode.value[0]
            key = self.construct_object(key_node)
            value = self.construct_object(value_node)
            omap.append((key, value))

def construct_yaml_pairs(self, node):
        # Note: the same code as `construct_yaml_omap`.
        pairs = []
        yield pairs
        if not isinstance(node, SequenceNode):
            raise ConstructorError("while constructing pairs", node.start_mark,
                    "expected a sequence, but found %s" % node.id, node.start_mark)
        for subnode in node.value:
            if not isinstance(subnode, MappingNode):
                raise ConstructorError("while constructing pairs", node.start_mark,
                        "expected a mapping of length 1, but found %s" % subnode.id,
                        subnode.start_mark)
            if len(subnode.value) != 1:
                raise ConstructorError("while constructing pairs", node.start_mark,
                        "expected a single mapping item, but found %d items" % len(subnode.value),
                        subnode.start_mark)
            key_node, value_node = subnode.value[0]
            key = self.construct_object(key_node)
            value = self.construct_object(value_node)
            pairs.append((key, value))

def construct_yaml_set(self, node):
        data = set()
        yield data
        value = self.construct_mapping(node)
        data.update(value)

def construct_yaml_str(self, node):
        value = self.construct_scalar(node)
        try:
            return value.encode('ascii')
        except UnicodeEncodeError:
            return value

def construct_yaml_seq(self, node):
        data = []
        yield data
        data.extend(self.construct_sequence(node))

def construct_yaml_map(self, node):
        data = {}
        yield data
        value = self.construct_mapping(node)
        data.update(value)

def construct_yaml_object(self, node, cls):
        data = cls.__new__(cls)
        yield data
        if hasattr(data, '__setstate__'):
            state = self.construct_mapping(node, deep=True)
            data.__setstate__(state)
        else:
            state = self.construct_mapping(node)
            data.__dict__.update(state)

def construct_undefined(self, node):
        raise ConstructorError(None, None,
                "could not determine a constructor for the tag %r" % node.tag.encode('utf-8'),
                node.start_mark)

SafeConstructor.add_constructor(
        u'tag:yaml.org,2002:null',
        SafeConstructor.construct_yaml_null)

SafeConstructor.add_constructor(
        u'tag:yaml.org,2002:bool',
        SafeConstructor.construct_yaml_bool)

SafeConstructor.add_constructor(
        u'tag:yaml.org,2002:int',
        SafeConstructor.construct_yaml_int)

SafeConstructor.add_constructor(
        u'tag:yaml.org,2002:float',
        SafeConstructor.construct_yaml_float)

SafeConstructor.add_constructor(
        u'tag:yaml.org,2002:binary',
        SafeConstructor.construct_yaml_binary)

SafeConstructor.add_constructor(
        u'tag:yaml.org,2002:timestamp',
        SafeConstructor.construct_yaml_timestamp)

SafeConstructor.add_constructor(
        u'tag:yaml.org,2002:omap',
        SafeConstructor.construct_yaml_omap)

SafeConstructor.add_constructor(
        u'tag:yaml.org,2002:pairs',
        SafeConstructor.construct_yaml_pairs)

SafeConstructor.add_constructor(
        u'tag:yaml.org,2002:set',
        SafeConstructor.construct_yaml_set)

SafeConstructor.add_constructor(
        u'tag:yaml.org,2002:str',
        SafeConstructor.construct_yaml_str)

SafeConstructor.add_constructor(
        u'tag:yaml.org,2002:seq',
        SafeConstructor.construct_yaml_seq)

SafeConstructor.add_constructor(
        u'tag:yaml.org,2002:map',
        SafeConstructor.construct_yaml_map)

SafeConstructor.add_constructor(None,
        SafeConstructor.construct_undefined)

class Constructor(SafeConstructor):

def construct_python_str(self, node):
        return self.construct_scalar(node).encode('utf-8')

def construct_python_unicode(self, node):
        return self.construct_scalar(node)

def construct_python_long(self, node):
        return long(self.construct_yaml_int(node))

def construct_python_complex(self, node):
       return complex(self.construct_scalar(node))

def construct_python_tuple(self, node):
        return tuple(self.construct_sequence(node))

def find_python_module(self, name, mark):
        if not name:
            raise ConstructorError("while constructing a Python module", mark,
                    "expected non-empty name appended to the tag", mark)
        try:
            __import__(name)
        except ImportError, exc:
            raise ConstructorError("while constructing a Python module", mark,
                    "cannot find module %r (%s)" % (name.encode('utf-8'), exc), mark)
        return sys.modules[name]

def find_python_name(self, name, mark):
        if not name:
            raise ConstructorError("while constructing a Python object", mark,
                    "expected non-empty name appended to the tag", mark)
        if u'.' in name:
            module_name, object_name = name.rsplit('.', 1)
        else:
            module_name = '__builtin__'
            object_name = name
        try:
            __import__(module_name)
        except ImportError, exc:
            raise ConstructorError("while constructing a Python object", mark,
                    "cannot find module %r (%s)" % (module_name.encode('utf-8'), exc), mark)
        module = sys.modules[module_name]
        if not hasattr(module, object_name):
            raise ConstructorError("while constructing a Python object", mark,
                    "cannot find %r in the module %r" % (object_name.encode('utf-8'),
                        module.__name__), mark)
        return getattr(module, object_name)

def construct_python_name(self, suffix, node):
        value = self.construct_scalar(node)
        if value:
            raise ConstructorError("while constructing a Python name", node.start_mark,
                    "expected the empty value, but found %r" % value.encode('utf-8'),
                    node.start_mark)
        return self.find_python_name(suffix, node.start_mark)

def construct_python_module(self, suffix, node):
        value = self.construct_scalar(node)
        if value:
            raise ConstructorError("while constructing a Python module", node.start_mark,
                    "expected the empty value, but found %r" % value.encode('utf-8'),
                    node.start_mark)
        return self.find_python_module(suffix, node.start_mark)

class classobj: pass

def make_python_instance(self, suffix, node,
            args=None, kwds=None, newobj=False):
        if not args:
            args = []
        if not kwds:
            kwds = {}
        cls = self.find_python_name(suffix, node.start_mark)
        if newobj and isinstance(cls, type(self.classobj))  \
                and not args and not kwds:
            instance = self.classobj()
            instance.__class__ = cls
            return instance
        elif newobj and isinstance(cls, type):
            return cls.__new__(cls, *args, **kwds)
        else:
            return cls(*args, **kwds)

def set_python_instance_state(self, instance, state):
        if hasattr(instance, '__setstate__'):
            instance.__setstate__(state)
        else:
            slotstate = {}
            if isinstance(state, tuple) and len(state) == 2:
                state, slotstate = state
            if hasattr(instance, '__dict__'):
                instance.__dict__.update(state)
            elif state:
                slotstate.update(state)
            for key, value in slotstate.items():
                setattr(object, key, value)

def construct_python_object(self, suffix, node):
        # Format:
        #   !!python/object:module.name { ... state ... }
        instance = self.make_python_instance(suffix, node, newobj=True)
        yield instance
        deep = hasattr(instance, '__setstate__')
        state = self.construct_mapping(node, deep=deep)
        self.set_python_instance_state(instance, state)

def construct_python_object_apply(self, suffix, node, newobj=False):
        # Format:
        #   !!python/object/apply       # (or !!python/object/new)
        #   args: [ ... arguments ... ]
        #   kwds: { ... keywords ... }
        #   state: ... state ...
        #   listitems: [ ... listitems ... ]
        #   dictitems: { ... dictitems ... }
        # or short format:
        #   !!python/object/apply [ ... arguments ... ]
        # The difference between !!python/object/apply and !!python/object/new
        # is how an object is created, check make_python_instance for details.
        if isinstance(node, SequenceNode):
            args = self.construct_sequence(node, deep=True)
            kwds = {}
            state = {}
            listitems = []
            dictitems = {}
        else:
            value = self.construct_mapping(node, deep=True)
            args = value.get('args', [])
            kwds = value.get('kwds', {})
            state = value.get('state', {})
            listitems = value.get('listitems', [])
            dictitems = value.get('dictitems', {})
        instance = self.make_python_instance(suffix, node, args, kwds, newobj)
        if state:
            self.set_python_instance_state(instance, state)
        if listitems:
            instance.extend(listitems)
        if dictitems:
            for key in dictitems:
                instance[key] = dictitems[key]
        return instance

def construct_python_object_new(self, suffix, node):
        return self.construct_python_object_apply(suffix, node, newobj=True)

Constructor.add_constructor(
    u'tag:yaml.org,2002:python/none',
    Constructor.construct_yaml_null)

Constructor.add_constructor(
    u'tag:yaml.org,2002:python/bool',
    Constructor.construct_yaml_bool)

Constructor.add_constructor(
    u'tag:yaml.org,2002:python/str',
    Constructor.construct_python_str)

Constructor.add_constructor(
    u'tag:yaml.org,2002:python/unicode',
    Constructor.construct_python_unicode)

Constructor.add_constructor(
    u'tag:yaml.org,2002:python/int',
    Constructor.construct_yaml_int)

Constructor.add_constructor(
    u'tag:yaml.org,2002:python/long',
    Constructor.construct_python_long)

Constructor.add_constructor(
    u'tag:yaml.org,2002:python/float',
    Constructor.construct_yaml_float)

Constructor.add_constructor(
    u'tag:yaml.org,2002:python/complex',
    Constructor.construct_python_complex)

Constructor.add_constructor(
    u'tag:yaml.org,2002:python/list',
    Constructor.construct_yaml_seq)

Constructor.add_constructor(
    u'tag:yaml.org,2002:python/tuple',
    Constructor.construct_python_tuple)

Constructor.add_constructor(
    u'tag:yaml.org,2002:python/dict',
    Constructor.construct_yaml_map)

Constructor.add_multi_constructor(
    u'tag:yaml.org,2002:python/name:',
    Constructor.construct_python_name)

Constructor.add_multi_constructor(
    u'tag:yaml.org,2002:python/module:',
    Constructor.construct_python_module)

Constructor.add_multi_constructor(
    u'tag:yaml.org,2002:python/object:',
    Constructor.construct_python_object)

Constructor.add_multi_constructor(
    u'tag:yaml.org,2002:python/object/apply:',
    Constructor.construct_python_object_apply)

Constructor.add_multi_constructor(
    u'tag:yaml.org,2002:python/object/new:',
    Constructor.construct_python_object_new)

cmd: