svghmi/i18n.py
author Edouard Tisserant <edouard.tisserant@gmail.com>
Fri, 12 Feb 2021 21:58:03 +0100
branchsvghmi
changeset 3135 d723472a18a4
parent 3133 450cd01324ad
child 3144 2af6afaccaf2
permissions -rw-r--r--
SVGHMI: propagate default local variables (HMI_LOCAL, PAGE_LOCAL) to widgets at startup
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# This file is part of Beremiz
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# Copyright (C) 2021: Edouard TISSERANT
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#
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# See COPYING file for copyrights details.
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from __future__ import absolute_import
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from lxml import etree
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import os
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import sys
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import subprocess
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import time
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import ast
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import wx
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# to have it for python 2, had to install 
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# https://pypi.org/project/pycountry/18.12.8/
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# python2 -m pip install pycountry==18.12.8 --user
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import pycountry
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def open_pofile(pofile):
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    """ Opens PO file with POEdit """
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    if sys.platform.startswith('win'):
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        from six.moves import winreg
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        poedit_cmd = None
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        try:
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            poedit_cmd = winreg.QueryValue(winreg.HKEY_LOCAL_MACHINE,
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                                           'SOFTWARE\\Classes\\poedit\\shell\\open\\command')
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            poedit_path = poedit_cmd.replace('"%1"', '').strip().replace('"', '')
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        except OSError:
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            poedit_path = None
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    else:
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        try:
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            poedit_path = subprocess.check_output("command -v poedit", shell=True).strip()
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        except subprocess.CalledProcessError:
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            poedit_path = None
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    if poedit_path is None:
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        wx.MessageBox("POEdit is not found or installed !")
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    else:
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        subprocess.Popen([poedit_path,pofile])
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def EtreeToMessages(msgs):
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    """ Converts XML tree from 'extract_i18n' templates into a list of tuples """
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    messages = []
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    for msg in msgs:
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        messages.append((
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            "\n".join([line.text for line in msg]),
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            msg.get("label"), msg.get("id")))
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    return messages
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def SaveCatalog(fname, messages):
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    """ Save messages given as list of tupple (msg,label,id) in POT file """
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    w = POTWriter()
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    w.ImportMessages(messages)
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    with open(fname, 'w') as POT_file:
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        w.write(POT_file)
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def ReadTranslations(dirpath):
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    """ Read all PO files from a directory and return a list of (lang, translation_dict) tuples """
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    po_files = [fname for fname in os.listdir(dirpath) if fname.endswith(".po")]
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    translations = []
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    for po_fname in po_files:
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        r = POReader()
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        with open(os.path.join(dirpath, po_fname), 'r') as PO_file:
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            r.read(PO_file)
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            translations.append((po_fname[:-3], r.get_messages()))
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    return translations
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def MatchTranslations(translations, messages, errcallback):
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    """
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    Matches translations against original message catalog,
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    warn about inconsistancies,
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    returns list of langs, and a list of (msgid, [translations]) tuples
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    """
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    translated_messages = []
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    broken_lang = set()
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    for msgid,label,svgid in messages:
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        translated_message = []
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        for lang,translation in translations:
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            msg = translation.pop(msgid, None)
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            if msg is None:
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                broken_lang.add(lang)
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                errcallback(_('{}: Missing translation for "{}" (label:{}, id:{})\n').format(lang,msgid,label,svgid))
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                translated_message.append(msgid)
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            else:
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                translated_message.append(msg)
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        translated_messages.append((msgid,translated_message))
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    langs = []
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    for lang,translation in translations:
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        try:
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            l,c = lang.split("_")
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            language_name = pycountry.languages.get(alpha_2 = l).name
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            country_name = pycountry.countries.get(alpha_2 = c).name
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            langs.append("{} ({})".format(language_name, country_name))
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        except:
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            try:
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                language_name = pycountry.languages.get(alpha_2 = lang).name
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                langs.append(language_name)
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            except:
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                langs.append(lang)
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        broken = False
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        for msgid, msg in translation.iteritems():
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            broken = True
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            errcallback(_('{}: Unused translation "{}":"{}"\n').format(lang,msgid,msg))
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        if broken or lang in broken_lang:
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            errcallback(_('Translation for {} is outdated, please edit {}.po, click "Catalog -> Update from POT File..." and select messages.pot.\n').format(lang,lang))
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    return langs,translated_messages
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def TranslationToEtree(langs,translated_messages):
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    result = etree.Element("translations")
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    langsroot = etree.SubElement(result, "langs")
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    for lang in langs:
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        langel = etree.SubElement(langsroot, "lang")
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        langel.text = lang
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    msgsroot = etree.SubElement(result, "messages")
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    for msgid, msgs in translated_messages:
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        msgidel = etree.SubElement(msgsroot, "msgid")
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        for msg in msgs:
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            msgel = etree.SubElement(msgidel, "msg")
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            for line in msg.split("\n"):
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                lineel = etree.SubElement(msgel, "line")
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                lineel.text = escape(line.encode("utf-8")).decode("utf-8")
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    return result
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locpfx = '#:svghmi.svg:'
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pot_header = '''\
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# SOME DESCRIPTIVE TITLE.
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# Copyright (C) YEAR ORGANIZATION
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# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
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#
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msgid ""
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msgstr ""
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"Project-Id-Version: PACKAGE VERSION\\n"
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"POT-Creation-Date: %(time)s\\n"
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"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\\n"
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"Last-Translator: FULL NAME <EMAIL@ADDRESS>\\n"
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"Language-Team: LANGUAGE <LL@li.org>\\n"
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"MIME-Version: 1.0\\n"
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"Content-Type: text/plain; charset=UTF-8\\n"
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"Content-Transfer-Encoding: 8bit\\n"
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"Generated-By: SVGHMI 1.0\\n"
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'''
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escapes = []
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def make_escapes(pass_iso8859):
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    global escapes
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    escapes = [chr(i) for i in range(256)]
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    if pass_iso8859:
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        # Allow iso-8859 characters to pass through so that e.g. 'msgid
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        # "Höhe"' would result not result in 'msgid "H\366he"'.  Otherwise we
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        # escape any character outside the 32..126 range.
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        mod = 128
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    else:
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        mod = 256
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    for i in range(mod):
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        if not(32 <= i <= 126):
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            escapes[i] = "\\%03o" % i
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    escapes[ord('\\')] = '\\\\'
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    escapes[ord('\t')] = '\\t'
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    escapes[ord('\r')] = '\\r'
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    escapes[ord('\n')] = '\\n'
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    escapes[ord('\"')] = '\\"'
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make_escapes(pass_iso8859 = True)
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EMPTYSTRING = ''
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def escape(s):
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    global escapes
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    s = list(s)
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    for i in range(len(s)):
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        s[i] = escapes[ord(s[i])]
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    return EMPTYSTRING.join(s)
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def normalize(s):
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    # This converts the various Python string types into a format that is
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    # appropriate for .po files, namely much closer to C style.
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    lines = s.split('\n')
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    if len(lines) == 1:
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        s = '"' + escape(s) + '"'
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    else:
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        if not lines[-1]:
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            del lines[-1]
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            lines[-1] = lines[-1] + '\n'
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        for i in range(len(lines)):
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            lines[i] = escape(lines[i])
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        lineterm = '\\n"\n"'
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        s = '""\n"' + lineterm.join(lines) + '"'
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    return s
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diff changeset
   212
3108
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   213
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   214
class POTWriter:
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   215
    def __init__(self):
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   216
        self.__messages = {}
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   217
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   218
    def ImportMessages(self, msgs):
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   219
        for  msg, label, svgid in msgs:
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   220
            self.addentry(msg.encode("utf-8"), label, svgid)
3108
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diff changeset
   221
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   222
    def addentry(self, msg, label, svgid):
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diff changeset
   223
        entry = (label, svgid)
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parents:
diff changeset
   224
        self.__messages.setdefault(msg, set()).add(entry)
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diff changeset
   225
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   226
    def write(self, fp):
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diff changeset
   227
        timestamp = time.strftime('%Y-%m-%d %H:%M+%Z')
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diff changeset
   228
        print >> fp, pot_header % {'time': timestamp}
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parents:
diff changeset
   229
        reverse = {}
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parents:
diff changeset
   230
        for k, v in self.__messages.items():
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parents:
diff changeset
   231
            keys = list(v)
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parents:
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   232
            keys.sort()
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diff changeset
   233
            reverse.setdefault(tuple(keys), []).append((k, v))
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parents:
diff changeset
   234
        rkeys = reverse.keys()
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parents:
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   235
        rkeys.sort()
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parents:
diff changeset
   236
        for rkey in rkeys:
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   237
            rentries = reverse[rkey]
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parents:
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   238
            rentries.sort()
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parents:
diff changeset
   239
            for k, v in rentries:
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bd20f9112014 SVGHMI: still WIP, now POT file is properly generated with utf-8 encoding and POEdit is launched when pressing button.
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   240
                v = list(v)
3108
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   241
                v.sort()
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   242
                locline = locpfx
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parents:
diff changeset
   243
                for label, svgid in v:
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   244
                    d = {'label': label, 'svgid': svgid}
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   245
                    s = _(' %(label)s:%(svgid)s') % d
3108
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parents:
diff changeset
   246
                    if len(locline) + len(s) <= 78:
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parents:
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   247
                        locline = locline + s
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   248
                    else:
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   249
                        print >> fp, locline
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   250
                        locline = locpfx + s
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parents:
diff changeset
   251
                if len(locline) > len(locpfx):
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   252
                    print >> fp, locline
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   253
                print >> fp, 'msgid', normalize(k)
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parents:
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   254
                print >> fp, 'msgstr ""\n'
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   255
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   256
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class POReader:
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   258
    def __init__(self):
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   259
        self.__messages = {}
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parents:
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   260
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   261
    def get_messages(self):
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   262
        return self.__messages
18133b90196e SVGHMI: i18n: now loads PO filesand match translation against catalog. Refactored a bit to move i18n related code in i18n.py
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parents: 3112
diff changeset
   263
18133b90196e SVGHMI: i18n: now loads PO filesand match translation against catalog. Refactored a bit to move i18n related code in i18n.py
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parents: 3112
diff changeset
   264
    def add(self, msgid, msgstr, fuzzy):
3108
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
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   265
        "Add a non-fuzzy translation to the dictionary."
3115
77cfbf1aacf0 SVGHMI: i18n: various fixes about unicode encoding and converting translation result back to XML to feed xslt processor
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diff changeset
   266
        if not fuzzy and msgstr and msgid:
77cfbf1aacf0 SVGHMI: i18n: various fixes about unicode encoding and converting translation result back to XML to feed xslt processor
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diff changeset
   267
            self.__messages[msgid.decode('utf-8')] = msgstr.decode('utf-8')
3108
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diff changeset
   268
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   269
    def read(self, fp):
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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   270
        ID = 1
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   271
        STR = 2
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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diff changeset
   272
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   273
        lines = fp.readlines()
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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   274
        section = None
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   275
        fuzzy = 0
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   276
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parents:
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   277
        # Parse the catalog
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   278
        lno = 0
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
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   279
        for l in lines:
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
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   280
            lno += 1
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   281
            # If we get a comment line after a msgstr, this is a new entry
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   282
            if l[0] == '#' and section == STR:
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   283
                self.add(msgid, msgstr, fuzzy)
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   284
                section = None
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   285
                fuzzy = 0
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   286
            # Record a fuzzy mark
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   287
            if l[:2] == '#,' and 'fuzzy' in l:
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   288
                fuzzy = 1
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   289
            # Skip comments
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   290
            if l[0] == '#':
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   291
                continue
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   292
            # Now we are in a msgid section, output previous section
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   293
            if l.startswith('msgid') and not l.startswith('msgid_plural'):
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   294
                if section == STR:
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
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parents:
diff changeset
   295
                    self.add(msgid, msgstr, fuzzy)
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   296
                section = ID
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   297
                l = l[5:]
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   298
                msgid = msgstr = ''
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   299
                is_plural = False
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   300
            # This is a message with plural forms
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   301
            elif l.startswith('msgid_plural'):
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   302
                if section != ID:
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   303
                    print >> sys.stderr, 'msgid_plural not preceded by msgid on %s:%d' %\
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   304
                        (infile, lno)
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   305
                    sys.exit(1)
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   306
                l = l[12:]
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   307
                msgid += '\0' # separator of singular and plural
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   308
                is_plural = True
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   309
            # Now we are in a msgstr section
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   310
            elif l.startswith('msgstr'):
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   311
                section = STR
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   312
                if l.startswith('msgstr['):
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   313
                    if not is_plural:
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   314
                        print >> sys.stderr, 'plural without msgid_plural on %s:%d' %\
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   315
                            (infile, lno)
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   316
                        sys.exit(1)
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   317
                    l = l.split(']', 1)[1]
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   318
                    if msgstr:
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   319
                        msgstr += '\0' # Separator of the various plural forms
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   320
                else:
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   321
                    if is_plural:
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   322
                        print >> sys.stderr, 'indexed msgstr required for plural on  %s:%d' %\
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   323
                            (infile, lno)
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   324
                        sys.exit(1)
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   325
                    l = l[6:]
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   326
            # Skip empty lines
079419e7228d SVGHMI: Intermediate commit while implementing i18n. WIP.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
   327
            l = l.strip()
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   328
            if not l:
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                continue
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   330
            l = ast.literal_eval(l)
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   331
            if section == ID:
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   332
                msgid += l
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   333
            elif section == STR:
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   334
                msgstr += l
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   335
            else:
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                print >> sys.stderr, 'Syntax error on %s:%d' % (infile, lno), \
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parents:
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                      'before:'
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                print >> sys.stderr, l
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parents:
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                sys.exit(1)
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   340
        # Add last entry
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   341
        if section == STR:
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            self.add(msgid, msgstr, fuzzy)
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   343
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   344