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Viewing changes to libanki/anki/features/japanese.py

  • Committer: Bazaar Package Importer
  • Author(s): Mackenzie Morgan
  • Date: 2010-05-31 15:55:50 UTC
  • mfrom: (7.1.2 sid)
  • Revision ID: james.westby@ubuntu.com-20100531155550-wj3tag8bvp6fwhpo
Tags: 0.9.9.8.6-2~lucid1
https://launchpad.net/bugs/550145
Backport from maverick to fix FTBFS (LP: #550145)

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libanki/anki/features/japanese.py
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# -*- coding: utf-8 -*-
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# Copyright: Damien Elmes <anki@ichi2.net>
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# License: GNU GPL, version 3 or later; http://www.gnu.org/copyleft/gpl.html
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import sys, os
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from subprocess import Popen, PIPE
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from anki.utils import findTag, stripHTML
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from anki.hooks import addHook
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modelTag = "Japanese"
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srcField = "Expression"
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dstField = "Reading"
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class KakasiController(object):
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    def __init__(self):
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        # add our pre-packaged kakasi to the path
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        if sys.platform == "win32":
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            dir = os.path.dirname(sys.argv[0])
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            os.environ['PATH'] += ";" + dir + "\\kakasi\\bin"
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            shareDir = dir + "\\kakasi\\share\\kakasi\\"
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            os.environ['ITAIJIDICT'] = shareDir + "\\itaijidict"
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            os.environ['KANWADICT'] = shareDir + "\\kanwadict"
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        elif sys.platform.startswith("darwin"):
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            dir = os.path.dirname(os.path.abspath(__file__))
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            dir = os.path.abspath(dir + "/../../../../..")
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            import platform
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            # don't add kakasi to the path on powerpc, it's buggy
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            # and loop until this works, since processor() is buggy
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            while 1:
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                try:
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                    proc = platform.processor()
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                except IOError:
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                    proc = None
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                if proc:
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                    break
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            if proc != "powerpc":
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                os.environ['PATH'] += ":" + dir + "/kakasi"
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            os.environ['ITAIJIDICT'] = dir + "/kakasi/itaijidict"
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            os.environ['KANWADICT'] = dir + "/kakasi/kanwadict"
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        self._open = False
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    # we don't launch kakasi until it's actually required
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    def lazyopen(self):
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        if not self._open:
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            if not self.available():
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                from errno import ENOENT
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                raise OSError(ENOENT, 'Kakasi not available')
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            # don't convert kana to hiragana
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            p = Popen("kakasi -isjis -osjis -u -JH -p", shell=True,
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                      bufsize=-1, stdin=PIPE, stdout=PIPE)
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            (self.kin, self.kout) = (p.stdin, p.stdout)
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            self._open = True
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    def close(self):
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        if self._open:
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            self.kin.close()
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            self.kout.close()
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    def toFurigana(self, kanji):
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        self.lazyopen()
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        kanji = self.formatForKakasi(kanji)
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        try:
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            self.kin.write(kanji.encode("sjis", "ignore")+'\n')
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            self.kin.flush()
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            return unicode(self.kout.readline().rstrip('\n'), "sjis")
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        except IOError:
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            return u""
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    def formatForKakasi(self, text):
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        "Strip characters kakasi can't handle."
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        # kakasi is line based
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        text = text.replace("\n", " ")
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        text = text.replace(u'\uff5e', "~")
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        text = text.replace("<br>", "---newline---")
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        text = text.replace("<br />", "---newline---")
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        text = stripHTML(text)
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        text = text.replace("---newline---", "<br>")
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        return text
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    def available(self):
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        if sys.platform in ("win32",):
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            executable = 'kakasi.exe'
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        else:
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            executable = 'kakasi'
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        for d in os.environ['PATH'].split(os.pathsep):
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            if os.path.exists(os.path.join(d, executable)):
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                return True
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        return False
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# Hook
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##########################################################################
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kakasi = KakasiController()
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if not kakasi.available():
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    kakasi = None
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def onFocusLost(fact, field):
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    if not kakasi:
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        return
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    if field.name != srcField:
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        return
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    if not findTag(modelTag, fact.model.tags):
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        return
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    try:
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        if fact[dstField]:
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            return
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    except:
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        return
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    tmp = kakasi.toFurigana(field.value)
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    if tmp != field.value:
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        fact[dstField] = tmp
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addHook('fact.focusLost', onFocusLost)