summaryrefslogtreecommitdiffstats
path: root/language.py
blob: 031ffd02c7cc8a41d97713c25de6be8022522677 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
#
# language.py: install data component that stores information about both
#              installer runtime language choice and installed system
#              language support.
#
# Copyright 2001-2005 Red Hat, Inc.
#
# This software may be freely redistributed under the terms of the GNU
# library public license.
#
# You should have received a copy of the GNU Library Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#

import os
import string
import locale
import rpm

from rhpl.translate import cat
from rhpl.simpleconfig import SimpleConfigFile
from rhpl.log import log

# Converts a single language into a "language search path". For example,
# fr_FR.utf8@euro would become "fr_FR.utf8@eueo fr_FR.utf8 fr_FR fr"
def expandLangs(astring):
    langs = [astring]
    # remove charset ...
    if '.' in astring:
	langs.append(string.split(astring, '.')[0])

    if '@' in astring:
	langs.append(string.split(astring, '@')[0])

    # also add 2 character language code ...
    if len(astring) > 2:
	langs.append(astring[:2])

    return langs

class Language:
    def __init__ (self):
        self.info = {}
        self.info["SUPPORTED"] = None
        self.supported = []
        self.default = None

        self.allSupportedLangs = []
        self.langInfoByName = {}
        self.nativeLangNames = {}
        self.localeInfo = {}

        if os.environ.has_key("LANG"):
            self.current = os.environ["LANG"]
        else:
            self.current = "en_US.UTF-8"

        # English name -> native name mapping
        search = ('lang-names', '/usr/lib/anaconda/lang-names')
        for path in search:
            if os.access(path, os.R_OK):
                f = open(path, 'r')
                for line in f.readlines():
                    lang, native = string.split(line, '\t')
                    native = native.strip()
                    self.nativeLangNames[lang] = native

                f.close()
                break
        
        # nick -> (name, short name, font, keyboard, timezone) mapping
        search = ('lang-table', '/tmp/updates/lang-table',
                  '/mnt/source/RHupdates/lang-table', '/etc/lang-table',
                  '/usr/lib/anaconda/lang-table')
        for path in search:
            if os.access(path, os.R_OK):
                f = open(path, "r")
                break

        for line in f.readlines():
            string.strip(line)
            l = string.split(line, '\t')

            # throw out invalid lines
            if len(l) < 6:
                continue

            self.localeInfo[l[3]] = (l[0], l[1], l[2], l[4], string.strip(l[5]))

        f.close()

        # long name -> (nick, map, font) mapping
        search = ('locale-list', '/usr/share/anaconda/locale-list')
        for path in search:
            if os.access(path, os.R_OK):
                f = open(path, 'r')

                for line in f.readlines():
                    line = string.strip(line)
                    (nick, map, font, name) = string.split(line, '\t')
                    self.langInfoByName[name] = (nick, map, font)

                f.close()
                break

        # If we weren't able to find a locale-list, set a reasonable default.
        if not self.allSupportedLangs:
            self.langInfoByName['English (USA)'] = ('en_US.UTF-8', 'iso01', 'default8x16')

        self.allSupportedLangs = self.langInfoByName.keys()

        # Set the language for anaconda to be using based on current $LANG.
        self.setRuntimeLanguage(self.current)
        self.setDefault(self.current)
        self.setSupported([self.getLangNameByNick(self.current)])

    # Convert what might be a shortened form of a language's nick (en or
    # en_US, for example) into the full version (en_US.UTF-8).
    def canonLangNick (self, nick):
        try:
            for key in self.localeInfo.keys():
                if nick in expandLangs(key):
                    return key
        except:
            return 'en_US.UTF-8'

    def getNickByName (self, name):
        for k in self.localeInfo.keys():
            row = self.localeInfo[k]
            if row[0] == name:
                return k
        
    def getNativeLangName(self, lang):
        return self.nativeLangNames[lang]

    def getLangNameByNick(self, nick):
	canonNick = self.canonLangNick (nick)

        try:
            return self.localeInfo[canonNick][0]
        except KeyError:
            curNick = self.canonLangNick (self.getCurrent())
            return self.localeInfo[curNick][0]

    def getFontFile (self, lang):
	# Note: in /etc/fonts.cgz fonts are named by the map
	# name as that's unique, font names are not
        lang = self.canonLangNick (lang)
        return self.localeInfo[lang][2]

    def getDefaultKeyboard(self):
        lang = self.canonLangNick (self.getCurrent())
        return self.localeInfo[lang][3]

    def getDefaultTimeZone(self):
        lang = self.canonLangNick (self.getCurrent())
        return self.localeInfo[lang][4]

    def available (self):
        return self.nativeLangNames.keys()

    def getSupported (self):
	return self.supported

    def getAllSupported (self):
        return self.allSupportedLangs

    def getCurrentLangSearchList(self):
	return expandLangs(self.getCurrent()) + ['C']

    def getCurrent(self):
	return self.current

    def getDefault(self):
        if self.default:
            return self.default
        elif os.environ.has_key('RUNTIMELANG'):
            lang = os.environ['RUNTIMELANG']
            name = self.getLangNameByNick(lang)
            if name not in self.getSupported():
                # the default language needs to be in the supported list!
                s = self.getSupported()
                s.append(name)
                s.sort()
                self.setSupported(s)

            return name
        else:
            return 'English'

    def setDefault(self, nick):
	if not nick:
	    self.default = None
	    return

        # Try to find a match for the language nick we were given.
        name = None
        for k in self.langInfoByName.keys():
            row = self.langInfoByName[k]
            if nick in expandLangs(row[0]):
                name = k
                break

        # It's possible we didn't find a match.
        if name == None:
            self.default = None
            return

	self.default = self.getLangNameByNick(nick)
	(lang, map, font) = self.langInfoByName[name]

	self.info['LANG'] = lang
	self.info['SYSFONT'] = font
        if map != "utf8":
            self.info['SYSFONTACM'] = map
        # XXX hack - because of exceptional cases on the var - zh_CN.GB2312
	if lang == "zh_CN.GB18030":
	    self.info['LANGUAGE'] = "zh_CN.GB18030:zh_CN.GB2312:zh_CN"        

    def setSupported (self, namelist):
	if len(namelist) == len(self.allSupportedLangs):
            self.info["SUPPORTED"] = None
	    self.supported = self.getAllSupported()
        elif namelist:
	    rpmNickList = []
	    for name in namelist:
                nick = self.getNickByName(name)
		rpmNickList = rpmNickList + expandLangs(nick)

            linguas = string.join (rpmNickList, ':')
            self.info["SUPPORTED"] = linguas
	    self.supported = namelist

            shortLinguas = string.join (rpmNickList, ':')
        else:
            self.info["SUPPORTED"] = None
	    self.supported = None
	
	if self.info["SUPPORTED"]:
	    os.environ ["LINGUAS"] = self.info["SUPPORTED"]
	else:
	    os.environ ["LINGUAS"] = ""

    def setRuntimeDefaults(self, nick):
        self.current = nick
        # XXX HACK HACK, I'm using an environment variable to communicate
        # between two classes (runtimelang and lang support)
        os.environ["RUNTIMELANG"] = nick

    def setRuntimeLanguage(self, nick):
        self.setRuntimeDefaults(nick)
        lang = nick

        os.environ["LANG"] = lang
        os.environ["LC_NUMERIC"] = 'C'
        try:
            locale.setlocale(locale.LC_ALL, "")
        except locale.Error:
            pass

        newlangs = [lang]
        if lang.find(".") != -1:
            newlangs.append(lang[:lang.find(".")])
	if len(lang) > 2:
            newlangs.append(lang[:2])
        cat.setlangs(newlangs)

    def write(self, instPath):
	f = open(instPath + "/etc/sysconfig/i18n", "w")
        for key in self.info.keys():
            if self.info[key] != None:
                f.write("%s=\"%s\"\n" % (key, self.info[key]))
	f.close()

    def writeKS(self, f):
        sup = ""

        if self.info["SUPPORTED"] != None:
            for n in self.getSupported():
                sup = sup + " " + self.getNickByName(n)

	f.write("lang %s\n" % self.getCurrent())
        f.write("langsupport --default=%s%s\n" %
		(self.getNickByName(self.getDefault()), sup))