Split special chars handling to separate file

Issue #406
Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/trans/forms.py

@@ -31,6 +31,7 @@ from weblate.lang.models import Language
 from weblate.trans.models import Unit
 from weblate.trans.models.source import PRIORITY_CHOICES
 from weblate.trans.checks import CHECKS
+from weblate.trans.specialchars import get_special_chars
 from urllib import urlencode
 import weblate
 
@@ -63,13 +64,6 @@ PLURALS_TEMPLATE = u'''
 <p class="help-block">{2}</p>
 '''
 
-SPECIAL_CHARS = (u'→', u'↵', u'…')
-CHAR_NAMES = {
-    u'→': _('Insert tab character'),
-    u'↵': _('Insert new line'),
-    u'…': _('Insert horizontal ellipsis'),
-}
-
 
 def escape_newline(value):
     '''
@@ -108,11 +102,7 @@ class PluralTextarea(forms.Textarea):
 
         # Special chars
         chars = []
-        for char in SPECIAL_CHARS:
-            if char in CHAR_NAMES:
-                name = CHAR_NAMES[char]
-            else:
-                name = ugettext('Insert character {0}').format(char)
+        for name, char in get_special_chars():
             chars.append(
                 BUTTON_TEMPLATE.format(
                     'specialchar',

weblate/trans/specialchars.py

+# -*- coding: utf-8 -*-
+#
+# Copyright © 2012 - 2014 Michal Čihař <michal@cihar.com>
+#
+# This file is part of Weblate <http://weblate.org/>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+"""
+Helper code to get user special chars specific for given language.
+"""
+
+from django.utils.translation import ugettext as _
+
+
+SPECIAL_CHARS = (u'→', u'↵', u'…')
+CHAR_NAMES = {
+    u'→': _('Insert tab character'),
+    u'↵': _('Insert new line'),
+    u'…': _('Insert horizontal ellipsis'),
+}
+
+
+def get_special_chars():
+    """
+    Returns list of special characters.
+    """
+    for char in SPECIAL_CHARS:
+        if char in CHAR_NAMES:
+            name = CHAR_NAMES[char]
+        else:
+            name = _('Insert character {0}').format(char)
+        yield name, char