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|
=begin
textdomain.rb - GetText::Textdomain
Copyright (C) 2001-2006 Masao Mutoh
Copyright (C) 2001-2003 Masahiro Sakai
Masahiro Sakai <s01397ms@sfc.keio.ac.jp>
Masao Mutoh <mutoh@highway.ne.jp>
You may redistribute it and/or modify it under the same
license terms as Ruby.
$Id: textdomain.rb,v 1.18 2006/06/11 15:36:20 mutoh Exp $
=end
require 'gettext/string'
require 'rbconfig'
module GetText
# GetText::TextDomain class manages mo-files of a textdomain.
#
# Usually, you don't need to use this class directly.
#
# Notice: This class is unstable. APIs will be changed.
class TextDomain
GEM_PATH_RE = /(.*)\/lib$/ # :nodoc:
attr_reader :current_locale
attr_reader :locale_paths
attr_reader :current_mo
attr_reader :name
@@check_mo = false
# Check mo-file is modified or not, and if mo-file is modified,
# reload mo-file again. This is effective in debug mode.
# Default is false. If $DEBUG is true, mo-file is checked even if
# this value is false.
# * Returns: true if "check mo" mode.
def self.check_mo?
@@check_mo
end
# Sets to check mo-file or not. See GetText::TextDoman.check_mo? for more details.
# * val: true if "check mo" mode.
# * Returns: val
def self.check_mo=(val)
@@check_mo = val
end
# The default locale paths.
CONFIG_PREFIX = Config::CONFIG['prefix'].gsub(/\/local/, "")
DEFAULT_LOCALE_PATHS = [
"#{Config::CONFIG['datadir']}/locale/%{locale}/LC_MESSAGES/%{name}.mo",
"#{Config::CONFIG['datadir'].gsub(/\/local/, "")}/locale/%{locale}/LC_MESSAGES/%{name}.mo",
"#{CONFIG_PREFIX}/share/locale/%{locale}/LC_MESSAGES/%{name}.mo",
"#{CONFIG_PREFIX}/local/share/locale/%{locale}/LC_MESSAGES/%{name}.mo"
].uniq
# Add default locale path. Usually you should use GetText.add_default_locale_path instead.
# * path: a new locale path. (e.g.) "/usr/share/locale/%{locale}/LC_MESSAGES/%{name}.mo"
# ('locale' => "ja_JP", 'name' => "textdomain")
# * Returns: the new DEFAULT_LOCALE_PATHS
def self.add_default_locale_path(path)
DEFAULT_LOCALE_PATHS << path
end
# Creates a new GetText::TextDomain.
# * name: the textdomain name.
# * topdir: the top directory of mo files or nil.
# * locale: the Locale::Object or nil.
# * Returns: a newly created GetText::TextDomain object.
def initialize(name, topdir = nil, locale = nil)
@name, @topdir = name, topdir
@search_files = Array.new
@locale_paths = []
if ENV["GETTEXT_PATH"]
ENV["GETTEXT_PATH"].split(/,/).each {|i|
@locale_paths += ["#{i}/%{locale}/LC_MESSAGES/%{name}.mo", "#{i}/%{locale}/%{name}.mo"]
}
elsif @topdir
@locale_paths += ["#{@topdir}/%{locale}/LC_MESSAGES/%{name}.mo", "#{@topdir}/%{locale}/%{name}.mo"]
end
unless @topdir
@locale_paths += DEFAULT_LOCALE_PATHS
if defined? Gem
$:.each do |path|
if GEM_PATH_RE =~ path
@locale_paths += [
"#{$1}/data/locale/%{locale}/LC_MESSAGES/%{name}.mo",
"#{$1}/data/locale/%{locale}/%{name}.mo",
"#{$1}/locale/%{locale}/%{name}.mo"]
end
end
end
end
@mofiles = Hash.new
set_locale(locale)
end
# Sets a new Locale::Object.
# * locale: a Locale::Object
# * reload: true if the mo-file is reloaded forcely
# * Returns: self
def set_locale(locale, reload = false)
@current_locale = locale
load_mo(reload)
self
end
# Gets the translated string.
# * msgid: the original message.
# * Returns: the translated string or nil if not found.
def gettext(msgid)
return "" if msgid == "" or msgid.nil?
if @current_mo and @current_mo[msgid] and (@current_mo[msgid].size > 0)
@current_mo[msgid]
else
nil
end
end
# Gets the translated string.
# * msgid: the original message(single).
# * msgid: the original message(plural).
# * n: the number
# * Returns: the translated string or nil if not found.
def ngettext(msgid, msgid_plural, n)
key = msgid + "\000" + msgid_plural
msg = gettext(key)
if ! msg
nil
elsif msg == key
msg = n == 1 ? msgid : msgid_plural
elsif msg.include?("\000")
ary = msg.split("\000")
if @current_mo
plural = eval(@current_mo.plural)
if plural.kind_of?(Numeric)
msg = ary[plural]
else
msg = plural ? ary[1] : ary[0]
end
else
msg = n == 1 ? ary[0] : ary[1]
end
end
msg
end
# Compare this object has the same name, topdir and locale.
# * name: the textdomain name
# * topdir: the top directory of mo files or nil.
# * locale: the Locale::Object or nil.
# * Returns: true if this object has all of the same name, topdir and locale.
def same_property?(name, topdir, locale)
@name == name and @topdir == topdir and @current_locale == locale
end
private
def load_mo(reload = false)
@current_mo = nil
return @current_mo unless @current_locale
unless reload
@current_mo = @mofiles[@current_locale]
if @current_mo
if @current_mo == :empty
@current_mo = nil
return nil unless (@@check_mo or $DEBUG)
elsif (@@check_mo or $DEBUG)
@current_mo.update!
return @current_mo
else
return @current_mo
end
end
end
locales = [@current_locale.orig_str, @current_locale.to_posix, @current_locale.language].uniq
matched = false
@locale_paths.each do |dir|
locales.each{|locale|
fname = dir % {:locale => locale, :name => @name}
@search_files << fname
if File.exist?(fname)
$stderr.puts "GetText::TextDomain#load_mo: mo file is #{fname}" if $DEBUG
@current_mo = MOFile.open(fname, @current_locale.charset)
@mofiles[@current_locale] = @current_mo
matched = true
break
end
}
break if matched
end
unless @current_mo
@mofiles[@current_locale] = :empty
if $DEBUG
$stderr.puts "MO file is not found in"
@search_files.each do |v|
$stderr.puts " #{v}"
end
end
end
@current_mo
end
end
end
|
