Renamed google.protobuf to protobuf26

third_party/google/protobuf/text_format.py

Index: third_party/google/protobuf/text_format.py
diff --git a/third_party/google/protobuf/text_format.py b/third_party/google/protobuf/text_format.py
deleted file mode 100644
index 50f76f228127e627c01fc2adb29791d2fdd0161a..0000000000000000000000000000000000000000
--- a/third_party/google/protobuf/text_format.py
+++ /dev/null
@@ -1,873 +0,0 @@
-# Protocol Buffers - Google's data interchange format
-# Copyright 2008 Google Inc.  All rights reserved.
-# http://code.google.com/p/protobuf/
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#PY25 compatible for GAE.
-#
-# Copyright 2007 Google Inc. All Rights Reserved.
-
-"""Contains routines for printing protocol messages in text format."""
-
-__author__ = 'kenton@google.com (Kenton Varda)'
-
-import cStringIO
-import re
-
-from google.protobuf.internal import type_checkers
-from google.protobuf import descriptor
-from google.protobuf import text_encoding
-
-__all__ = ['MessageToString', 'PrintMessage', 'PrintField',
-           'PrintFieldValue', 'Merge']
-
-
-_INTEGER_CHECKERS = (type_checkers.Uint32ValueChecker(),
-                     type_checkers.Int32ValueChecker(),
-                     type_checkers.Uint64ValueChecker(),
-                     type_checkers.Int64ValueChecker())
-_FLOAT_INFINITY = re.compile('-?inf(?:inity)?f?', re.IGNORECASE)
-_FLOAT_NAN = re.compile('nanf?', re.IGNORECASE)
-_FLOAT_TYPES = frozenset([descriptor.FieldDescriptor.CPPTYPE_FLOAT,
-                          descriptor.FieldDescriptor.CPPTYPE_DOUBLE])
-
-
-class Error(Exception):
-  """Top-level module error for text_format."""
-
-
-class ParseError(Error):
-  """Thrown in case of ASCII parsing error."""
-
-
-def MessageToString(message, as_utf8=False, as_one_line=False,
-                    pointy_brackets=False, use_index_order=False,
-                    float_format=None):
-  """Convert protobuf message to text format.
-
-  Floating point values can be formatted compactly with 15 digits of
-  precision (which is the most that IEEE 754 "double" can guarantee)
-  using float_format='.15g'.
-
-  Args:
-    message: The protocol buffers message.
-    as_utf8: Produce text output in UTF8 format.
-    as_one_line: Don't introduce newlines between fields.
-    pointy_brackets: If True, use angle brackets instead of curly braces for
-      nesting.
-    use_index_order: If True, print fields of a proto message using the order
-      defined in source code instead of the field number. By default, use the
-      field number order.
-    float_format: If set, use this to specify floating point number formatting
-      (per the "Format Specification Mini-Language"); otherwise, str() is used.
-
-  Returns:
-    A string of the text formatted protocol buffer message.
-  """
-  out = cStringIO.StringIO()
-  PrintMessage(message, out, as_utf8=as_utf8, as_one_line=as_one_line,
-               pointy_brackets=pointy_brackets,
-               use_index_order=use_index_order,
-               float_format=float_format)
-  result = out.getvalue()
-  out.close()
-  if as_one_line:
-    return result.rstrip()
-  return result
-
-
-def PrintMessage(message, out, indent=0, as_utf8=False, as_one_line=False,
-                 pointy_brackets=False, use_index_order=False,
-                 float_format=None):
-  fields = message.ListFields()
-  if use_index_order:
-    fields.sort(key=lambda x: x[0].index)
-  for field, value in fields:
-    if field.label == descriptor.FieldDescriptor.LABEL_REPEATED:
-      for element in value:
-        PrintField(field, element, out, indent, as_utf8, as_one_line,
-                   pointy_brackets=pointy_brackets,
-                   float_format=float_format)
-    else:
-      PrintField(field, value, out, indent, as_utf8, as_one_line,
-                 pointy_brackets=pointy_brackets,
-                 float_format=float_format)
-
-
-def PrintField(field, value, out, indent=0, as_utf8=False, as_one_line=False,
-               pointy_brackets=False, float_format=None):
-  """Print a single field name/value pair.  For repeated fields, the value
-  should be a single element."""
-
-  out.write(' ' * indent)
-  if field.is_extension:
-    out.write('[')
-    if (field.containing_type.GetOptions().message_set_wire_format and
-        field.type == descriptor.FieldDescriptor.TYPE_MESSAGE and
-        field.message_type == field.extension_scope and
-        field.label == descriptor.FieldDescriptor.LABEL_OPTIONAL):
-      out.write(field.message_type.full_name)
-    else:
-      out.write(field.full_name)
-    out.write(']')
-  elif field.type == descriptor.FieldDescriptor.TYPE_GROUP:
-    # For groups, use the capitalized name.
-    out.write(field.message_type.name)
-  else:
-    out.write(field.name)
-
-  if field.cpp_type != descriptor.FieldDescriptor.CPPTYPE_MESSAGE:
-    # The colon is optional in this case, but our cross-language golden files
-    # don't include it.
-    out.write(': ')
-
-  PrintFieldValue(field, value, out, indent, as_utf8, as_one_line,
-                  pointy_brackets=pointy_brackets,
-                  float_format=float_format)
-  if as_one_line:
-    out.write(' ')
-  else:
-    out.write('\n')
-
-
-def PrintFieldValue(field, value, out, indent=0, as_utf8=False,
-                    as_one_line=False, pointy_brackets=False,
-                    float_format=None):
-  """Print a single field value (not including name).  For repeated fields,
-  the value should be a single element."""
-
-  if pointy_brackets:
-    openb = '<'
-    closeb = '>'
-  else:
-    openb = '{'
-    closeb = '}'
-
-  if field.cpp_type == descriptor.FieldDescriptor.CPPTYPE_MESSAGE:
-    if as_one_line:
-      out.write(' %s ' % openb)
-      PrintMessage(value, out, indent, as_utf8, as_one_line,
-                   pointy_brackets=pointy_brackets,
-                   float_format=float_format)
-      out.write(closeb)
-    else:
-      out.write(' %s\n' % openb)
-      PrintMessage(value, out, indent + 2, as_utf8, as_one_line,
-                   pointy_brackets=pointy_brackets,
-                   float_format=float_format)
-      out.write(' ' * indent + closeb)
-  elif field.cpp_type == descriptor.FieldDescriptor.CPPTYPE_ENUM:
-    enum_value = field.enum_type.values_by_number.get(value, None)
-    if enum_value is not None:
-      out.write(enum_value.name)
-    else:
-      out.write(str(value))
-  elif field.cpp_type == descriptor.FieldDescriptor.CPPTYPE_STRING:
-    out.write('\"')
-    if isinstance(value, unicode):
-      out_value = value.encode('utf-8')
-    else:
-      out_value = value
-    if field.type == descriptor.FieldDescriptor.TYPE_BYTES:
-      # We need to escape non-UTF8 chars in TYPE_BYTES field.
-      out_as_utf8 = False
-    else:
-      out_as_utf8 = as_utf8
-    out.write(text_encoding.CEscape(out_value, out_as_utf8))
-    out.write('\"')
-  elif field.cpp_type == descriptor.FieldDescriptor.CPPTYPE_BOOL:
-    if value:
-      out.write('true')
-    else:
-      out.write('false')
-  elif field.cpp_type in _FLOAT_TYPES and float_format is not None:
-    out.write('{1:{0}}'.format(float_format, value))
-  else:
-    out.write(str(value))
-
-
-def _ParseOrMerge(lines, message, allow_multiple_scalars):
-  """Converts an ASCII representation of a protocol message into a message.
-
-  Args:
-    lines: Lines of a message's ASCII representation.
-    message: A protocol buffer message to merge into.
-    allow_multiple_scalars: Determines if repeated values for a non-repeated
-      field are permitted, e.g., the string "foo: 1 foo: 2" for a
-      required/optional field named "foo".
-
-  Raises:
-    ParseError: On ASCII parsing problems.
-  """
-  tokenizer = _Tokenizer(lines)
-  while not tokenizer.AtEnd():
-    _MergeField(tokenizer, message, allow_multiple_scalars)
-
-
-def Parse(text, message):
-  """Parses an ASCII representation of a protocol message into a message.
-
-  Args:
-    text: Message ASCII representation.
-    message: A protocol buffer message to merge into.
-
-  Returns:
-    The same message passed as argument.
-
-  Raises:
-    ParseError: On ASCII parsing problems.
-  """
-  if not isinstance(text, str): text = text.decode('utf-8')
-  return ParseLines(text.split('\n'), message)
-
-
-def Merge(text, message):
-  """Parses an ASCII representation of a protocol message into a message.
-
-  Like Parse(), but allows repeated values for a non-repeated field, and uses
-  the last one.
-
-  Args:
-    text: Message ASCII representation.
-    message: A protocol buffer message to merge into.
-
-  Returns:
-    The same message passed as argument.
-
-  Raises:
-    ParseError: On ASCII parsing problems.
-  """
-  return MergeLines(text.split('\n'), message)
-
-
-def ParseLines(lines, message):
-  """Parses an ASCII representation of a protocol message into a message.
-
-  Args:
-    lines: An iterable of lines of a message's ASCII representation.
-    message: A protocol buffer message to merge into.
-
-  Returns:
-    The same message passed as argument.
-
-  Raises:
-    ParseError: On ASCII parsing problems.
-  """
-  _ParseOrMerge(lines, message, False)
-  return message
-
-
-def MergeLines(lines, message):
-  """Parses an ASCII representation of a protocol message into a message.
-
-  Args:
-    lines: An iterable of lines of a message's ASCII representation.
-    message: A protocol buffer message to merge into.
-
-  Returns:
-    The same message passed as argument.
-
-  Raises:
-    ParseError: On ASCII parsing problems.
-  """
-  _ParseOrMerge(lines, message, True)
-  return message
-
-
-def _MergeField(tokenizer, message, allow_multiple_scalars):
-  """Merges a single protocol message field into a message.
-
-  Args:
-    tokenizer: A tokenizer to parse the field name and values.
-    message: A protocol message to record the data.
-    allow_multiple_scalars: Determines if repeated values for a non-repeated
-      field are permitted, e.g., the string "foo: 1 foo: 2" for a
-      required/optional field named "foo".
-
-  Raises:
-    ParseError: In case of ASCII parsing problems.
-  """
-  message_descriptor = message.DESCRIPTOR
-  if tokenizer.TryConsume('['):
-    name = [tokenizer.ConsumeIdentifier()]
-    while tokenizer.TryConsume('.'):
-      name.append(tokenizer.ConsumeIdentifier())
-    name = '.'.join(name)
-
-    if not message_descriptor.is_extendable:
-      raise tokenizer.ParseErrorPreviousToken(
-          'Message type "%s" does not have extensions.' %
-          message_descriptor.full_name)
-    # pylint: disable=protected-access
-    field = message.Extensions._FindExtensionByName(name)
-    # pylint: enable=protected-access
-    if not field:
-      raise tokenizer.ParseErrorPreviousToken(
-          'Extension "%s" not registered.' % name)
-    elif message_descriptor != field.containing_type:
-      raise tokenizer.ParseErrorPreviousToken(
-          'Extension "%s" does not extend message type "%s".' % (
-              name, message_descriptor.full_name))
-    tokenizer.Consume(']')
-  else:
-    name = tokenizer.ConsumeIdentifier()
-    field = message_descriptor.fields_by_name.get(name, None)
-
-    # Group names are expected to be capitalized as they appear in the
-    # .proto file, which actually matches their type names, not their field
-    # names.
-    if not field:
-      field = message_descriptor.fields_by_name.get(name.lower(), None)
-      if field and field.type != descriptor.FieldDescriptor.TYPE_GROUP:
-        field = None
-
-    if (field and field.type == descriptor.FieldDescriptor.TYPE_GROUP and
-        field.message_type.name != name):
-      field = None
-
-    if not field:
-      raise tokenizer.ParseErrorPreviousToken(
-          'Message type "%s" has no field named "%s".' % (
-              message_descriptor.full_name, name))
-
-  if field.cpp_type == descriptor.FieldDescriptor.CPPTYPE_MESSAGE:
-    tokenizer.TryConsume(':')
-
-    if tokenizer.TryConsume('<'):
-      end_token = '>'
-    else:
-      tokenizer.Consume('{')
-      end_token = '}'
-
-    if field.label == descriptor.FieldDescriptor.LABEL_REPEATED:
-      if field.is_extension:
-        sub_message = message.Extensions[field].add()
-      else:
-        sub_message = getattr(message, field.name).add()
-    else:
-      if field.is_extension:
-        sub_message = message.Extensions[field]
-      else:
-        sub_message = getattr(message, field.name)
-      sub_message.SetInParent()
-
-    while not tokenizer.TryConsume(end_token):
-      if tokenizer.AtEnd():
-        raise tokenizer.ParseErrorPreviousToken('Expected "%s".' % (end_token))
-      _MergeField(tokenizer, sub_message, allow_multiple_scalars)
-  else:
-    _MergeScalarField(tokenizer, message, field, allow_multiple_scalars)
-
-  # For historical reasons, fields may optionally be separated by commas or
-  # semicolons.
-  if not tokenizer.TryConsume(','):
-    tokenizer.TryConsume(';')
-
-
-def _MergeScalarField(tokenizer, message, field, allow_multiple_scalars):
-  """Merges a single protocol message scalar field into a message.
-
-  Args:
-    tokenizer: A tokenizer to parse the field value.
-    message: A protocol message to record the data.
-    field: The descriptor of the field to be merged.
-    allow_multiple_scalars: Determines if repeated values for a non-repeated
-      field are permitted, e.g., the string "foo: 1 foo: 2" for a
-      required/optional field named "foo".
-
-  Raises:
-    ParseError: In case of ASCII parsing problems.
-    RuntimeError: On runtime errors.
-  """
-  tokenizer.Consume(':')
-  value = None
-
-  if field.type in (descriptor.FieldDescriptor.TYPE_INT32,
-                    descriptor.FieldDescriptor.TYPE_SINT32,
-                    descriptor.FieldDescriptor.TYPE_SFIXED32):
-    value = tokenizer.ConsumeInt32()
-  elif field.type in (descriptor.FieldDescriptor.TYPE_INT64,
-                      descriptor.FieldDescriptor.TYPE_SINT64,
-                      descriptor.FieldDescriptor.TYPE_SFIXED64):
-    value = tokenizer.ConsumeInt64()
-  elif field.type in (descriptor.FieldDescriptor.TYPE_UINT32,
-                      descriptor.FieldDescriptor.TYPE_FIXED32):
-    value = tokenizer.ConsumeUint32()
-  elif field.type in (descriptor.FieldDescriptor.TYPE_UINT64,
-                      descriptor.FieldDescriptor.TYPE_FIXED64):
-    value = tokenizer.ConsumeUint64()
-  elif field.type in (descriptor.FieldDescriptor.TYPE_FLOAT,
-                      descriptor.FieldDescriptor.TYPE_DOUBLE):
-    value = tokenizer.ConsumeFloat()
-  elif field.type == descriptor.FieldDescriptor.TYPE_BOOL:
-    value = tokenizer.ConsumeBool()
-  elif field.type == descriptor.FieldDescriptor.TYPE_STRING:
-    value = tokenizer.ConsumeString()
-  elif field.type == descriptor.FieldDescriptor.TYPE_BYTES:
-    value = tokenizer.ConsumeByteString()
-  elif field.type == descriptor.FieldDescriptor.TYPE_ENUM:
-    value = tokenizer.ConsumeEnum(field)
-  else:
-    raise RuntimeError('Unknown field type %d' % field.type)
-
-  if field.label == descriptor.FieldDescriptor.LABEL_REPEATED:
-    if field.is_extension:
-      message.Extensions[field].append(value)
-    else:
-      getattr(message, field.name).append(value)
-  else:
-    if field.is_extension:
-      if not allow_multiple_scalars and message.HasExtension(field):
-        raise tokenizer.ParseErrorPreviousToken(
-            'Message type "%s" should not have multiple "%s" extensions.' %
-            (message.DESCRIPTOR.full_name, field.full_name))
-      else:
-        message.Extensions[field] = value
-    else:
-      if not allow_multiple_scalars and message.HasField(field.name):
-        raise tokenizer.ParseErrorPreviousToken(
-            'Message type "%s" should not have multiple "%s" fields.' %
-            (message.DESCRIPTOR.full_name, field.name))
-      else:
-        setattr(message, field.name, value)
-
-
-class _Tokenizer(object):
-  """Protocol buffer ASCII representation tokenizer.
-
-  This class handles the lower level string parsing by splitting it into
-  meaningful tokens.
-
-  It was directly ported from the Java protocol buffer API.
-  """
-
-  _WHITESPACE = re.compile('(\\s|(#.*$))+', re.MULTILINE)
-  _TOKEN = re.compile(
-      '[a-zA-Z_][0-9a-zA-Z_+-]*|'           # an identifier
-      '[0-9+-][0-9a-zA-Z_.+-]*|'            # a number
-      '\"([^\"\n\\\\]|\\\\.)*(\"|\\\\?$)|'  # a double-quoted string
-      '\'([^\'\n\\\\]|\\\\.)*(\'|\\\\?$)')  # a single-quoted string
-  _IDENTIFIER = re.compile(r'\w+')
-
-  def __init__(self, lines):
-    self._position = 0
-    self._line = -1
-    self._column = 0
-    self._token_start = None
-    self.token = ''
-    self._lines = iter(lines)
-    self._current_line = ''
-    self._previous_line = 0
-    self._previous_column = 0
-    self._more_lines = True
-    self._SkipWhitespace()
-    self.NextToken()
-
-  def AtEnd(self):
-    """Checks the end of the text was reached.
-
-    Returns:
-      True iff the end was reached.
-    """
-    return not self.token
-
-  def _PopLine(self):
-    while len(self._current_line) <= self._column:
-      try:
-        self._current_line = self._lines.next()
-      except StopIteration:
-        self._current_line = ''
-        self._more_lines = False
-        return
-      else:
-        self._line += 1
-        self._column = 0
-
-  def _SkipWhitespace(self):
-    while True:
-      self._PopLine()
-      match = self._WHITESPACE.match(self._current_line, self._column)
-      if not match:
-        break
-      length = len(match.group(0))
-      self._column += length
-
-  def TryConsume(self, token):
-    """Tries to consume a given piece of text.
-
-    Args:
-      token: Text to consume.
-
-    Returns:
-      True iff the text was consumed.
-    """
-    if self.token == token:
-      self.NextToken()
-      return True
-    return False
-
-  def Consume(self, token):
-    """Consumes a piece of text.
-
-    Args:
-      token: Text to consume.
-
-    Raises:
-      ParseError: If the text couldn't be consumed.
-    """
-    if not self.TryConsume(token):
-      raise self._ParseError('Expected "%s".' % token)
-
-  def ConsumeIdentifier(self):
-    """Consumes protocol message field identifier.
-
-    Returns:
-      Identifier string.
-
-    Raises:
-      ParseError: If an identifier couldn't be consumed.
-    """
-    result = self.token
-    if not self._IDENTIFIER.match(result):
-      raise self._ParseError('Expected identifier.')
-    self.NextToken()
-    return result
-
-  def ConsumeInt32(self):
-    """Consumes a signed 32bit integer number.
-
-    Returns:
-      The integer parsed.
-
-    Raises:
-      ParseError: If a signed 32bit integer couldn't be consumed.
-    """
-    try:
-      result = ParseInteger(self.token, is_signed=True, is_long=False)
-    except ValueError, e:
-      raise self._ParseError(str(e))
-    self.NextToken()
-    return result
-
-  def ConsumeUint32(self):
-    """Consumes an unsigned 32bit integer number.
-
-    Returns:
-      The integer parsed.
-
-    Raises:
-      ParseError: If an unsigned 32bit integer couldn't be consumed.
-    """
-    try:
-      result = ParseInteger(self.token, is_signed=False, is_long=False)
-    except ValueError, e:
-      raise self._ParseError(str(e))
-    self.NextToken()
-    return result
-
-  def ConsumeInt64(self):
-    """Consumes a signed 64bit integer number.
-
-    Returns:
-      The integer parsed.
-
-    Raises:
-      ParseError: If a signed 64bit integer couldn't be consumed.
-    """
-    try:
-      result = ParseInteger(self.token, is_signed=True, is_long=True)
-    except ValueError, e:
-      raise self._ParseError(str(e))
-    self.NextToken()
-    return result
-
-  def ConsumeUint64(self):
-    """Consumes an unsigned 64bit integer number.
-
-    Returns:
-      The integer parsed.
-
-    Raises:
-      ParseError: If an unsigned 64bit integer couldn't be consumed.
-    """
-    try:
-      result = ParseInteger(self.token, is_signed=False, is_long=True)
-    except ValueError, e:
-      raise self._ParseError(str(e))
-    self.NextToken()
-    return result
-
-  def ConsumeFloat(self):
-    """Consumes an floating point number.
-
-    Returns:
-      The number parsed.
-
-    Raises:
-      ParseError: If a floating point number couldn't be consumed.
-    """
-    try:
-      result = ParseFloat(self.token)
-    except ValueError, e:
-      raise self._ParseError(str(e))
-    self.NextToken()
-    return result
-
-  def ConsumeBool(self):
-    """Consumes a boolean value.
-
-    Returns:
-      The bool parsed.
-
-    Raises:
-      ParseError: If a boolean value couldn't be consumed.
-    """
-    try:
-      result = ParseBool(self.token)
-    except ValueError, e:
-      raise self._ParseError(str(e))
-    self.NextToken()
-    return result
-
-  def ConsumeString(self):
-    """Consumes a string value.
-
-    Returns:
-      The string parsed.
-
-    Raises:
-      ParseError: If a string value couldn't be consumed.
-    """
-    the_bytes = self.ConsumeByteString()
-    try:
-      return unicode(the_bytes, 'utf-8')
-    except UnicodeDecodeError, e:
-      raise self._StringParseError(e)
-
-  def ConsumeByteString(self):
-    """Consumes a byte array value.
-
-    Returns:
-      The array parsed (as a string).
-
-    Raises:
-      ParseError: If a byte array value couldn't be consumed.
-    """
-    the_list = [self._ConsumeSingleByteString()]
-    while self.token and self.token[0] in ('\'', '"'):
-      the_list.append(self._ConsumeSingleByteString())
-    return ''.encode('latin1').join(the_list)  ##PY25
-##!PY25    return b''.join(the_list)
-
-  def _ConsumeSingleByteString(self):
-    """Consume one token of a string literal.
-
-    String literals (whether bytes or text) can come in multiple adjacent
-    tokens which are automatically concatenated, like in C or Python.  This
-    method only consumes one token.
-    """
-    text = self.token
-    if len(text) < 1 or text[0] not in ('\'', '"'):
-      raise self._ParseError('Expected string.')
-
-    if len(text) < 2 or text[-1] != text[0]:
-      raise self._ParseError('String missing ending quote.')
-
-    try:
-      result = text_encoding.CUnescape(text[1:-1])
-    except ValueError, e:
-      raise self._ParseError(str(e))
-    self.NextToken()
-    return result
-
-  def ConsumeEnum(self, field):
-    try:
-      result = ParseEnum(field, self.token)
-    except ValueError, e:
-      raise self._ParseError(str(e))
-    self.NextToken()
-    return result
-
-  def ParseErrorPreviousToken(self, message):
-    """Creates and *returns* a ParseError for the previously read token.
-
-    Args:
-      message: A message to set for the exception.
-
-    Returns:
-      A ParseError instance.
-    """
-    return ParseError('%d:%d : %s' % (
-        self._previous_line + 1, self._previous_column + 1, message))
-
-  def _ParseError(self, message):
-    """Creates and *returns* a ParseError for the current token."""
-    return ParseError('%d:%d : %s' % (
-        self._line + 1, self._column + 1, message))
-
-  def _StringParseError(self, e):
-    return self._ParseError('Couldn\'t parse string: ' + str(e))
-
-  def NextToken(self):
-    """Reads the next meaningful token."""
-    self._previous_line = self._line
-    self._previous_column = self._column
-
-    self._column += len(self.token)
-    self._SkipWhitespace()
-
-    if not self._more_lines:
-      self.token = ''
-      return
-
-    match = self._TOKEN.match(self._current_line, self._column)
-    if match:
-      token = match.group(0)
-      self.token = token
-    else:
-      self.token = self._current_line[self._column]
-
-
-def ParseInteger(text, is_signed=False, is_long=False):
-  """Parses an integer.
-
-  Args:
-    text: The text to parse.
-    is_signed: True if a signed integer must be parsed.
-    is_long: True if a long integer must be parsed.
-
-  Returns:
-    The integer value.
-
-  Raises:
-    ValueError: Thrown Iff the text is not a valid integer.
-  """
-  # Do the actual parsing. Exception handling is propagated to caller.
-  try:
-    # We force 32-bit values to int and 64-bit values to long to make
-    # alternate implementations where the distinction is more significant
-    # (e.g. the C++ implementation) simpler.
-    if is_long:
-      result = long(text, 0)
-    else:
-      result = int(text, 0)
-  except ValueError:
-    raise ValueError('Couldn\'t parse integer: %s' % text)
-
-  # Check if the integer is sane. Exceptions handled by callers.
-  checker = _INTEGER_CHECKERS[2 * int(is_long) + int(is_signed)]
-  checker.CheckValue(result)
-  return result
-
-
-def ParseFloat(text):
-  """Parse a floating point number.
-
-  Args:
-    text: Text to parse.
-
-  Returns:
-    The number parsed.
-
-  Raises:
-    ValueError: If a floating point number couldn't be parsed.
-  """
-  try:
-    # Assume Python compatible syntax.
-    return float(text)
-  except ValueError:
-    # Check alternative spellings.
-    if _FLOAT_INFINITY.match(text):
-      if text[0] == '-':
-        return float('-inf')
-      else:
-        return float('inf')
-    elif _FLOAT_NAN.match(text):
-      return float('nan')
-    else:
-      # assume '1.0f' format
-      try:
-        return float(text.rstrip('f'))
-      except ValueError:
-        raise ValueError('Couldn\'t parse float: %s' % text)
-
-
-def ParseBool(text):
-  """Parse a boolean value.
-
-  Args:
-    text: Text to parse.
-
-  Returns:
-    Boolean values parsed
-
-  Raises:
-    ValueError: If text is not a valid boolean.
-  """
-  if text in ('true', 't', '1'):
-    return True
-  elif text in ('false', 'f', '0'):
-    return False
-  else:
-    raise ValueError('Expected "true" or "false".')
-
-
-def ParseEnum(field, value):
-  """Parse an enum value.
-
-  The value can be specified by a number (the enum value), or by
-  a string literal (the enum name).
-
-  Args:
-    field: Enum field descriptor.
-    value: String value.
-
-  Returns:
-    Enum value number.
-
-  Raises:
-    ValueError: If the enum value could not be parsed.
-  """
-  enum_descriptor = field.enum_type
-  try:
-    number = int(value, 0)
-  except ValueError:
-    # Identifier.
-    enum_value = enum_descriptor.values_by_name.get(value, None)
-    if enum_value is None:
-      raise ValueError(
-          'Enum type "%s" has no value named %s.' % (
-              enum_descriptor.full_name, value))
-  else:
-    # Numeric value.
-    enum_value = enum_descriptor.values_by_number.get(number, None)
-    if enum_value is None:
-      raise ValueError(
-          'Enum type "%s" has no value with number %d.' % (
-              enum_descriptor.full_name, number))
-  return enum_value.number