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# Source Code for Module translate.storage.txt

      1  #!/usr/bin/env python
      2  # -*- coding: utf-8 -*-
      3  #
      4  # Copyright 2007 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  """This class implements the functionality for handling plain text files, or
     23  similar wiki type files.
     24
     25  Supported formats are
     26    - Plain text
     27    - dokuwiki
     28    - MediaWiki
     29  """
     30
     31  from translate.storage import base
     32  import re
     33
     34  dokuwiki = []
     35  dokuwiki.append(("Dokuwiki heading", re.compile(r"( ?={2,6}[\s]*)(.+)"), re.compile("([\s]*={2,6}[\s]*)$")))
     36  dokuwiki.append(("Dokuwiki bullet", re.compile(r"([\s]{2,}\*[\s]*)(.+)"), re.compile("[\s]+$")))
     37  dokuwiki.append(("Dokuwiki numbered item", re.compile(r"([\s]{2,}-[\s]*)(.+)"), re.compile("[\s]+$")))
     38
     39  mediawiki = []
     40  mediawiki.append(("MediaWiki heading", re.compile(r"(={2,5}[\s]*)(.+)"), re.compile("([\s]*={2,5}[\s]*)$")))
     41  mediawiki.append(("MediaWiki bullet", re.compile(r"(\*+[\s]*)(.+)"), re.compile("[\s]+$")))
     42  mediawiki.append(("MediaWiki numbered item", re.compile(r"(#+[\s]*)(.+)"), re.compile("[\s]+$")))
     43
     44  flavours = {
     45  "dokuwiki": dokuwiki,
     46  "mediawiki": mediawiki,
     47  None: [],
     48  "plain": []
     49  }
     50
     51 -class TxtUnit(base.TranslationUnit):
     52      """This class represents a block of text from a text file"""
     53 -    def __init__(self, source="", encoding="utf-8"):
     54          """Construct the txtunit"""
     55          self.encoding = encoding
     56          super(TxtUnit, self).__init__(source)
     57          self.source = source
     58          self.pretext = ""
     59          self.posttext = ""
     60          self.location = []
     61
     62 -    def __str__(self):
     63          """Convert a txt unit to a string"""
     64          string = u"".join([self.pretext, self.source, self.posttext])
     65          if isinstance(string, unicode):
     66              return string.encode(self.encoding)
     67          return string
     68
     69      # Note that source and target are equivalent for monolingual units
     70 -    def setsource(self, source):
     71          """Sets the definition to the quoted value of source"""
     72          if isinstance(source, str):
     73              source = source.decode(self.encoding)
     74          self._source = source
     75
     76 -    def getsource(self):
     77          """gets the unquoted source string"""
     78          return self._source
     79      source = property(getsource, setsource)
     80
     81 -    def settarget(self, target):
     82          """Sets the definition to the quoted value of target"""
     83          self.source = target
     84
     85 -    def gettarget(self):
     86          """gets the unquoted target string"""
     87          return self.source
     88      target = property(gettarget, settarget)
     89
     90 -    def addlocation(self, location):
     91          self.location.append(location)
     92
     93 -    def getlocations(self):
     94          return self.location
     95
     96 -class TxtFile(base.TranslationStore):
     97      """This class represents a text file, made up of txtunits"""
     98      UnitClass = TxtUnit
     99 -    def __init__(self, inputfile=None, flavour=None, encoding="utf-8"):
    100          base.TranslationStore.__init__(self, unitclass=self.UnitClass)
    101          self.filename = getattr(inputfile, 'name', '')
    102          self.flavour = flavours.get(flavour, [])
    103          if inputfile is not None:
    104              txtsrc = inputfile.readlines()
    105              self.parse(txtsrc)
    106          self.encoding = encoding
    107
    108 -    def parse(self, lines):
    109          """Read in text lines and create txtunits from the blocks of text"""
    110          block = []
    111          startline = 0
    112          pretext = ""
    113          posttext = ""
    114          if not isinstance(lines, list):
    115              lines = lines.split("\n")
    116          for linenum in range(len(lines)):
    117              line = lines[linenum].rstrip("\n").rstrip("\r")
    118              for rule, prere, postre in self.flavour:
    119                  match = prere.match(line)
    120                  if match:
    121                      pretext, source = match.groups()
    122                      postmatch = postre.search(source)
    123                      if postmatch:
    124                          posttext = postmatch.group()
    125                          source = source[:postmatch.start()]
    126                      block.append(source)
    127                      isbreak = True
    128                      break
    129              else:
    130                  isbreak = not line.strip()
    131              if isbreak and block:
    132                  unit = self.addsourceunit("\n".join(block))
    133                  unit.addlocation("%s:%d" % (self.filename, startline + 1))
    134                  unit.pretext = pretext
    135                  unit.posttext = posttext
    136                  pretext = ""
    137                  posttext = ""
    138                  block = []
    139              elif not isbreak:
    140                  if not block:
    141                      startline = linenum
    142                  block.append(line)
    143          if block:
    144              unit = self.addsourceunit("\n".join(block))
    145              unit.addlocation("%s:%d" % (self.filename, startline + 1))
    146
    147 -    def __str__(self):
    148          source = self.getoutput()
    149          if isinstance(source, unicode):
    150              return source.encode(getattr(self, "encoding", "UTF-8"))
    151          return source
    152
    153 -    def getoutput(self):
    154          """Convert the units back to blocks"""
    155          blocks = [str(unit) for unit in self.units]
    156          string = "\n\n".join(blocks)
    157          return string
    158