Initial source commit to grit-i18n project.

grit/node/io.py

+#!/usr/bin/python2.4
+# Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+'''The <output> and <file> elements.
+'''
+
+import os
+import re
+import grit.format.rc_header
+
+from grit.node import base
+from grit import exception
+from grit import util
+from grit import xtb_reader
+
+
+class FileNode(base.Node):
+  '''A <file> element.'''
+
+  def __init__(self):
+    super(type(self), self).__init__()
+    self.re = None
+    self.should_load_ = True
+
+  def IsTranslation(self):
+    return True
+
+  def GetLang(self):
+    return self.attrs['lang']
+
+  def DisableLoading(self):
+    self.should_load_ = False
+
+  def MandatoryAttributes(self):
+    return ['path', 'lang']
+
+  def RunGatherers(self, recursive=False, debug=False):
+    if not self.should_load_ or not self.SatisfiesOutputCondition():
+      return
+
+    root = self.GetRoot()
+    defs = {}
+    if hasattr(root, 'defines'):
+      defs = root.defines
+
+    xtb_file = file(self.GetFilePath())
+    try:
+      lang = xtb_reader.Parse(xtb_file,
+                              self.UberClique().GenerateXtbParserCallback(
+                                self.attrs['lang'], debug=debug),
+                              defs=defs)
+    except:
+      print "Exception during parsing of %s" % self.GetFilePath()
+      raise
+    # We special case 'he' and 'iw' because the translation console uses 'iw'
+    # and we use 'he'.
+    assert (lang == self.attrs['lang'] or
+            (lang == 'iw' and self.attrs['lang'] == 'he')), ('The XTB file you '
+            'reference must contain messages in the language specified\n'
+            'by the \'lang\' attribute.')
+
+  def GetFilePath(self):
+    return self.ToRealPath(os.path.expandvars(self.attrs['path']))
+
+
+class OutputNode(base.Node):
+  '''An <output> element.'''
+
+  def MandatoryAttributes(self):
+    return ['filename', 'type']
+
+  def DefaultAttributes(self):
+    return { 'lang' : '', # empty lang indicates all languages
+             'language_section' : 'neutral' # defines a language neutral section
+             }
+
+  def GetType(self):
+    return self.attrs['type']
+
+  def GetLanguage(self):
+    '''Returns the language ID, default 'en'.'''
+    return self.attrs['lang']
+
+  def GetFilename(self):
+    return self.attrs['filename']
+
+  def GetOutputFilename(self):
+    if hasattr(self, 'output_filename'):
+      return self.output_filename
+    else:
+      return self.attrs['filename']
+
+  def _IsValidChild(self, child):
+    return isinstance(child, EmitNode)
+
+class EmitNode(base.ContentNode):
+  ''' An <emit> element.'''
+
+  def DefaultAttributes(self):
+    return { 'emit_type' : 'prepend'}
+
+  def GetEmitType(self):
+    '''Returns the emit_type for this node. Default is 'append'.'''
+    return self.attrs['emit_type']
+
+  def ItemFormatter(self, t):
+    if t == 'rc_header':
+      return grit.format.rc_header.EmitAppender()
+    else:
+      return super(type(self), self).ItemFormatter(t)
+
+
+