Package translate :: Package storage :: Module qph

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# Source Code for Module translate.storage.qph

      1  #!/usr/bin/env python
      2  # -*- coding: utf-8 -*-
      3  #
      4  # Copyright 2008 Zuza Software Foundation
      5  #
      6  # This file is part of translate.
      7  #
      8  # translate is free software; you can redistribute it and/or modify
      9  # it under the terms of the GNU General Public License as published by
     10  # the Free Software Foundation; either version 2 of the License, or
     11  # (at your option) any later version.
     12  #
     13  # translate is distributed in the hope that it will be useful,
     14  # but WITHOUT ANY WARRANTY; without even the implied warranty of
     15  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16  # GNU General Public License for more details.
     17  #
     18  # You should have received a copy of the GNU General Public License
     19  # along with translate; if not, write to the Free Software
     20  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
     21  #
     22
     23  """Module for handling Qt Phrase Book (.qph) files.
     24
     25  Extract from the U{Qt Linguist Manual:
     26  Translators<http://doc.trolltech.com/4.3/linguist-translators.html>}:
     27  .qph Qt Phrase Book Files are human-readable XML files containing standard
     28  phrases and their translations. These files are created and updated by Qt
     29  Linguist and may be used by any number of projects and applications.
     30
     31  A DTD to define the format does not seem to exist, but the following U{code
     32  <http://www.google.com/codesearch?hl=en&q=show:gtsFsbhpVeE:KeGnQG0wDCQ:xOXsNYqccyE&sa=N&ct=rd&cs_p=ftp://ftp.trolltech.com/qt/source/qt-x11-opensource-4.0.0-b1.tar.gz&cs_f=qt-x11-opensource-4.0.0-b1/tools/linguist/linguist/phrase.cpp>}
     33  provides the reference implementation for the Qt Linguist product.
     34  """
     35
     36  from translate.storage import lisa
     37  from lxml import etree
     38
     39 -class QphUnit(lisa.LISAunit):
     40      """A single term in the qph file."""
     41
     42      rootNode = "phrase"
     43      languageNode = "source"
     44      textNode = ""
     45      namespace = ''
     46
     47 -    def createlanguageNode(self, lang, text, purpose):
     48          """Returns an xml Element setup with given parameters."""
     49          assert purpose
     50          langset = etree.Element(self.namespaced(purpose))
     51          langset.text = text
     52          return langset
     53
     54 -    def _getsourcenode(self):
     55          return self.xmlelement.find(self.namespaced(self.languageNode))
     56
     57 -    def _gettargetnode(self):
     58          return self.xmlelement.find(self.namespaced("target"))
     59
     60 -    def getlanguageNodes(self):
     61          """We override this to get source and target nodes."""
     62          def not_none(node):
     63              return not node is None
     64          return filter(not_none, [self._getsourcenode(), self._gettargetnode()])
     65
     66 -    def addnote(self, text, origin=None, position="append"):
     67          """Add a note specifically in a "definition" tag"""
     68          assert isinstance(text, unicode)
     69          current_notes = self.getnotes(origin)
     70          self.removenotes()
     71          note = etree.SubElement(self.xmlelement, self.namespaced("definition"))
     72          note.text = "\n".join(filter(None, [current_notes, text.strip()]))
     73
     74 -    def getnotes(self, origin=None):
     75          #TODO: consider only responding when origin has certain values
     76          notenode = self.xmlelement.find(self.namespaced("definition"))
     77          comment = ''
     78          if not notenode is None:
     79              comment = notenode.text
     80          return comment
     81
     82 -    def removenotes(self):
     83          """Remove all the translator notes."""
     84          note = self.xmlelement.find(self.namespaced("definition"))
     85          if not note is None:
     86              self.xmlelement.remove(note)
     87
     88
     89 -class QphFile(lisa.LISAfile):
     90      """Class representing a QPH file store."""
     91      UnitClass = QphUnit
     92      Name = _("Qt Phrase Book")
     93      Mimetypes  = ["application/x-qph"]
     94      Extensions = ["qph"]
     95      rootNode = "QPH"
     96      bodyNode = "QPH"
     97      XMLskeleton = '''<!DOCTYPE QPH>
     98  <QPH>
     99  </QPH>
    100  '''
    101      namespace = ''
    102
    103 -    def initbody(self):
    104          """Initialises self.body so it never needs to be retrieved from the XML again."""
    105          self.namespace = self.document.getroot().nsmap.get(None, None)
    106          self.body = self.document.getroot() # The root node contains the units
    107
    108 -    def __str__(self):
    109          """Converts to a string containing the file's XML.
    110
    111          We have to override this to ensure mimic the Qt convention:
    112              - no XML decleration
    113              - plain DOCTYPE that lxml seems to ignore
    114          """
    115          # A bug in lxml means we have to output the doctype ourselves. For
    116          # more information, see:
    117          # http://codespeak.net/pipermail/lxml-dev/2008-October/004112.html
    118          # The problem was fixed in lxml 2.1.3
    119          output = etree.tostring(self.document, pretty_print=True,
    120                  xml_declaration=False, encoding='utf-8')
    121          if not "<!DOCTYPE QPH>" in output[:30]:
    122              output = "<!DOCTYPE QPH>" + output
    123          return output
    124