Module | GetText
In: | lib/gettext/poparser.rb lib/gettext/textdomain.rb lib/gettext/utils.rb lib/gettext/rails.rb lib/gettext/version.rb lib/gettext/rgettext.rb lib/gettext/rmsgfmt.rb lib/gettext/container.rb lib/gettext/textdomainmanager.rb lib/gettext/cgi.rb lib/gettext/rmsgmerge.rb lib/gettext/parser/glade.rb lib/gettext/parser/ruby.rb lib/gettext/parser/active_record.rb lib/gettext/parser/erb.rb lib/gettext/erb.rb lib/gettext.rb

### Methods

N_ Nn_ _ add_default_locale_path bindtextdomain bindtextdomain_to cached= cached? cgi cgi= clear_cache create_mofiles current_textdomain_info gettext locale locale= msgmerge n_ ngettext np_ npgettext ns_ nsgettext output_charset output_charset= p_ pgettext remove_all_textdomains rgettext rmsgfmt rmsgmerge s_ set_cgi set_locale set_locale_all set_output_charset setlocale sgettext textdomain textdomain_to update_pofiles

### Included Modules

GetText GetText

### Classes and Modules

Module GetText::ActiveRecordParser
Module GetText::Container
Module GetText::ErbContainer
Module GetText::ErbParser
Module GetText::GladeParser
Module GetText::Rails
Module GetText::RubyParser
Class GetText::NoboundTextDomainError
Class GetText::PoParser
Class GetText::TextDomain
Class GetText::TextDomainManager

### Constants

BOM_UTF8 | = | [0xef, 0xbb, 0xbf].pack("c3")
VERSION | = | "1.93.0"

### Public Instance methods

N_(msgid)

This function does nothing. But it is required in order to recognize the msgid by rgettext.

- msgid: the message id.
- Returns: msgid.

[Source]

         # File lib/gettext.rb, line 383
    383:   def N_(msgid)
    384:     msgid
    385:   end

Nn_(msgid, msgid_plural)

This is same function as N_ but for ngettext.

- msgid: the message id.
- msgid_plural: the plural message id.
- Returns: msgid.

[Source]

         # File lib/gettext.rb, line 391
    391:   def Nn_(msgid, msgid_plural)
    392:     [msgid, msgid_plural]
    393:   end

_(msgid)

Alias for gettext

add_default_locale_path(path)

Add default locale path.

- 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

[Source]

         # File lib/gettext.rb, line 565
    565:   def add_default_locale_path(path)
    566:     TextDomain.add_default_locale_path(path)
    567:   end

bindtextdomain(domainname, options = {})

Bind a textdomain(%{path}/%{locale}/LC_MESSAGES/%{domainname}.mo) to your program. Normally, the texdomain scope becomes a ruby-script-file. So you need to call this function each ruby-script-files. On the other hand, if you call this function under GetText::Container (gettext/container, gettext/erb, gettext/rails), the textdomain scope becomes a Class/Module.

- domainname: the textdomain name.
- options: options as an Hash.
  - :path - the path to the mo-files. When the value is nil, it will search default paths such as /usr/share/locale, /usr/local/share/locale)
  - :locale - the locale string such as "ja_JP.UTF-8". Generally, you should use GetText.set_locale instead. The value is searched order by: the value of this value > System default language.
  - :charset - output charset. This affect the current textdomain only. Generally, you should use GetText.set_output_charset instead. The value is searched order by: the value of Locale.set_output_charset > ENV["OUTPUT_CHARSET"] > this value > System default charset.
- Returns: the GetText::TextDomainManager.

Note: Don‘t use locale_, charset argument(not in options). They are remained for backward compatibility.

[Source]

         # File lib/gettext.rb, line 85
     85:   def bindtextdomain(domainname, options = {}, locale_ = nil, charset = nil)
     86:     opt = {}
     87:     if options.kind_of? String
     88:       # For backward compatibility
     89:       opt = {:path => options, :locale => locale_, :charset => charset}
     90:     elsif options
     91:       opt = options
     92:     end
     93:     opt[:locale] = opt[:locale] ? Locale::Object.new(opt[:locale]) : Locale.get
     94:     opt[:charset] = TextDomainManager.output_charset if TextDomainManager.output_charset
     95:     opt[:locale].charset = opt[:charset] if opt[:charset]
     96:     Locale.set_current(opt[:locale])
     97:     target_key = bound_target
     98:     manager = @@__textdomainmanagers[target_key]
     99:     if manager
    100:       manager.set_locale(opt[:locale])
    101:     else
    102:       manager = TextDomainManager.new(target_key, opt[:locale])
    103:       @@__textdomainmanagers[target_key] = manager
    104:     end
    105:     manager.add_textdomain(domainname, opt)
    106:     manager
    107:   end

bindtextdomain_to(klass, domainname, options = {})

Includes GetText module and bind a textdomain to a class.

- klass: the target ruby class.
- domainname: the textdomain name.
- options: options as an Hash. See GetText.bindtextdomain.

[Source]

         # File lib/gettext.rb, line 113
    113:   def bindtextdomain_to(klass, domainname, options = {})
    114:     ret = nil
    115:     klass.module_eval {
    116:       include GetText
    117:       ret = bindtextdomain(domainname, options)
    118:     }
    119:     ret
    120:   end

cached=(val)

Set the value whether cache messages or not. true to cache messages, otherwise false.

Default is true. If $DEBUG is false, messages are not checked even if this value is true.

[Source]

        # File lib/gettext.rb, line 42
    42:   def cached=(val)
    43:     @@__cached = val
    44:     GetText::TextDomain.check_mo = ! val
    45:   end

cached?()

Return the cached value.

[Source]

        # File lib/gettext.rb, line 48
    48:   def cached?
    49:     @@__cached
    50:   end

cgi()

Gets the CGI object. If it is nil, returns new CGI object.

- Returns: the CGI object

[Source]

        # File lib/gettext/cgi.rb, line 36
    36:   def cgi
    37:     Locale.cgi
    38:   end

cgi=(cgi_)

Same as GetText.set_cgi.

- cgi_: CGI object
- Returns: cgi_

[Source]

        # File lib/gettext/cgi.rb, line 29
    29:   def cgi=(cgi_)
    30:     set_cgi(cgi_)
    31:     cgi_
    32:   end

clear_cache()

Clear the cached messages.

[Source]

        # File lib/gettext.rb, line 53
    53:   def clear_cache
    54:     @@__cache_msgids = {}
    55:     @@__cache_nmsgids = {}
    56:     @@__cache_target_classes = {}
    57:     @@__cache_bound_target = {}
    58:     @@__cache_bound_targets = {}
    59:   end

create_mofiles(verbose = false, podir = "./po", targetdir = "./data/locale", targetpath_rule = "%s/LC_MESSAGES")

Creates mo-files using #{po_root}/#{lang}/*.po an put them to #{targetdir}/#{targetpath_rule}/.

This is a convenience function of GetText.rmsgfmt for plural target files.

- verbose: true if verbose mode, otherwise false
- po_root: the root directory of po-files.
- targetdir: the target root directory where the mo-files are stored.
- targetpath_rule: the target directory for each mo-files. "%s" becomes "#{lang}" under po_root.

[Source]

         # File lib/gettext/utils.rb, line 110
    110:   def create_mofiles(verbose = false,
    111:                      podir = "./po", targetdir = "./data/locale",
    112:                      targetpath_rule = "%s/LC_MESSAGES")
    113:
    114:     modir = File.join(targetdir, targetpath_rule)
    115:     Dir.glob(File.join(podir, "*/*.po")) do |file|
    116:       lang, basename = /\/([^\/]+?)\/(.*)\.po/.match(file[podir.size..-1]).to_a[1,2]
    117:       outdir = modir % lang
    118:       FileUtils.mkdir_p(outdir) unless File.directory?(outdir)
    119:       $stderr.print %Q[#{file} -> #{File.join(outdir, "#{basename}.mo")} ... ] if verbose
    120:       begin
    121:         rmsgfmt(file, File.join(outdir, "#{basename}.mo"))
    122:       rescue Exception => e
    123:         $stderr.puts "Error." if verbose
    124:         raise e
    125:       end
    126:       $stderr.puts "Done." if verbose
    127:     end
    128:   end

current_textdomain_info(options = {})

Show the current textdomain information. This function is for debugging.

- options: options as a Hash.
  - :with_messages - show informations with messages of the current mo file. Default is false.
  - :out - An output target. Default is STDOUT.
  - :with_paths - show the load paths for mo-files.

[Source]

         # File lib/gettext.rb, line 574
    574:   def current_textdomain_info(options = {})
    575:     opts = {:with_messages => false, :with_paths => false, :out => STDOUT}.merge(options)
    576:     ret = nil
    577:     each_textdomain {|textdomain|
    578:       opts[:out].puts "TextDomain name: \"#{textdomain.name}\""
    579:       opts[:out].puts "TextDomain current locale: \"#{textdomain.current_locale}\""
    580:       opts[:out].puts "TextDomain current mo filename: \"#{textdomain.current_mo.filename}\""
    581:       if opts[:with_paths]
    582:         opts[:out].puts "TextDomain locale file paths:"
    583:         textdomain.locale_paths.each do |v|
    584:           opts[:out].puts "  #{v}"
    585:         end
    586:       end
    587:       if opts[:with_messages]
    588:         opts[:out].puts "The messages in the mo file:"
    589:         textdomain.current_mo.each{|k, v|
    590:           opts[:out].puts "  \"#{k}\": \"#{v}\""
    591:         }
    592:       end
    593:     }
    594:   end

gettext(msgid)
_(msgid)

Translates msgid and return the message. This doesn‘t make a copy of the message.

You need to use String#dup if you want to modify the return value with destructive functions.

(e.g.1) _("Hello ").dup << "world"

But e.g.1 should be rewrite to:

(e.g.2) _("Hello %{val}") % {:val => "world"}

Because the translator may want to change the position of "world".

- msgid: the message id.
- Returns: localized text by msgid. If there are not binded mo-file, it will return msgid.

[Source]

         # File lib/gettext.rb, line 263
    263:   def gettext(msgid)
    264:     sgettext(msgid, nil)
    265:   end

locale()

Gets the current locale.

- Returns: a current Locale::Object

[Source]

         # File lib/gettext.rb, line 557
    557:   def locale
    558:     Locale.current
    559:   end

locale=(locale)

Sets the default/current locale. This method haves the strongest infulence. All of the Textdomains are set the new locale.

Note that you shouldn‘t use this for your own Libraries.

- locale: a locale string or Locale::Object
- Returns: a locale string

[Source]

         # File lib/gettext.rb, line 527
    527:   def locale=(locale)
    528:     Locale.default = locale
    529:     set_locale_all(locale)
    530:     Locale.default
    531:   end

msgmerge(defpo, refpo, app_version)

Merges two Uniforum style .po files together.

Note This function requires "msgmerge" tool included in GNU GetText. So you need to install GNU GetText.

The def.po file is an existing PO file with translations which will be taken over to the newly created file as long as they still match; comments will be preserved, but extracted comments and file positions will be discarded.

The ref.pot file is the last created PO file with up-to-date source references but old translations, or a PO Template file (generally created by rgettext); any translations or comments in the file will be discarded, however dot comments and file positions will be preserved. Where an exact match cannot be found, fuzzy matching is used to produce better results.

Usually you don‘t need to call this function directly. Use GetText.update_pofiles instead.

- defpo: a po-file. translations referring to old sources
- refpo: a po-file. references to new sources
- app_version: the application information which appears "Project-Id-Version: #{app_version}" in the pot/po-files.
- Returns: self

[Source]

        # File lib/gettext/utils.rb, line 60
    60:   def msgmerge(defpo, refpo, app_version)
    61:     $stderr.print defpo + " "
    62:     cmd = ENV["MSGMERGE_PATH"] || "msgmerge"
    63:
    64:     cont = ""
    65:     if FileTest.exist? defpo
    66:       `#{cmd} --help`
    67:       unless $? && $?.success?
    68:         raise _("`%{cmd}' may not be found. \nInstall GNU Gettext then set PATH or MSGMERGE_PATH correctly.") % {:cmd => cmd}
    69:       end
    70:       remove_bom(defpo)
    71:       cont = `#{cmd} #{defpo} #{refpo}`
    72:     else
    73:       File.open(refpo) do |io|
    74:         cont = io.read
    75:       end
    76:     end
    77:     if cont.empty?
    78:       failed_filename = refpo + "~"
    79:       FileUtils.cp(refpo, failed_filename)
    80:       $stderr.puts _("Failed to merge with %{defpo}") % {:defpo => defpo}
    81:       $stderr.puts _("New .pot was copied to %{failed_filename}") %{:failed_filename => failed_filename}
    82:       raise _("Check these po/pot-files. It may have syntax errors or something wrong.")
    83:     else
    84:       cont.sub!(/(Project-Id-Version\:).*$/, "\\1 #{app_version}\\n\"")
    85:       File.open(defpo, "w") do |out|
    86:         out.write(cont)
    87:       end
    88:     end
    89:     self
    90:   end

n_(arg1, arg2, arg3 = nil)

Alias for ngettext

ngettext(msgid, msgid_plural, n)
ngettext(msgids, n) # msgids = [msgid, msgid_plural]
n_(msgid, msgid_plural, n)
n_(msgids, n) # msgids = [msgid, msgid_plural]

The ngettext is similar to the gettext function as it finds the message catalogs in the same way. But it takes two extra arguments for plural form.

- msgid: the singular form.
- msgid_plural: the plural form.
- n: a number used to determine the plural form.
- Returns: the localized text which key is msgid_plural if n is plural(follow plural-rule) or msgid. "plural-rule" is defined in po-file.

[Source]

         # File lib/gettext.rb, line 340
    340:   def ngettext(arg1, arg2, arg3 = nil)
    341:     nsgettext(arg1, arg2, arg3, nil)
    342:   end

np_(msgctxt, arg1, arg2 = nil, arg3 = nil)

Alias for npgettext

npgettext(msgctxt, msgid, msgid_plural, n)
npgettext(msgctxt, msgids, n) # msgids = [msgid, msgid_plural]
np_(msgctxt, msgid, msgid_plural, n)
np_(msgctxt, msgids, n) # msgids = [msgid, msgid_plural]

The npgettext is similar to the nsgettext function.

      e.g.) np_("Special", "An apple", "%{num} Apples", num) == ns_("Special|An apple", "%{num} Apples", num)

- msgctxt: the message context.
- msgid: the singular form.
- msgid_plural: the plural form.
- n: a number used to determine the plural form.
- Returns: the localized text which key is msgid_plural if n is plural(follow plural-rule) or msgid. "plural-rule" is defined in po-file.

[Source]

         # File lib/gettext.rb, line 358
    358:   def npgettext(msgctxt, arg1, arg2 = nil, arg3 = nil)
    359:     if arg1.kind_of?(Array)
    360:       msgid = arg1[0]
    361:       msgid_ctxt = "#{msgctxt}\004#{msgid}"
    362:       msgid_plural = arg1[1]
    363:       opt1 = arg2
    364:       opt2 = arg3
    365:     else
    366:       msgid = arg1
    367:       msgid_ctxt = "#{msgctxt}\004#{msgid}"
    368:       msgid_plural = arg2
    369:       opt1 = arg3
    370:       opt2 = nil
    371:     end
    372:     ret = nsgettext(msgid_ctxt, msgid_plural, opt1, opt2)
    373:
    374:     if ret == msgid_ctxt
    375:       ret = msgid
    376:     end
    377:     ret
    378:   end

ns_(arg1, arg2, arg3 = "|", arg4 = "|")

Alias for nsgettext

nsgettext(msgid, msgid_plural, n, div = "|")
nsgettext(msgids, n, div = "|") # msgids = [msgid, msgid_plural]
n_(msgid, msgid_plural, n, div = "|")
n_(msgids, n, div = "|") # msgids = [msgid, msgid_plural]

The nsgettext is similar to the ngettext. But if there are no localized text, it returns a last part of msgid separeted "div".

- msgid: the singular form with "div". (e.g. "Special|An apple")
- msgid_plural: the plural form. (e.g. "%{num} Apples")
- n: a number used to determine the plural form.
- Returns: the localized text which key is msgid_plural if n is plural(follow plural-rule) or msgid. "plural-rule" is defined in po-file.

[Source]

         # File lib/gettext.rb, line 411
    411:   def nsgettext(arg1, arg2, arg3 = "|", arg4 = "|")
    412:     if arg1.kind_of?(Array)
    413:       msgid = arg1[0]
    414:       msgid_plural = arg1[1]
    415:       n = arg2
    416:       if arg3 and arg3.kind_of? Numeric
    417:         raise ArgumentError, _("3rd parmeter is wrong: value = %{number}") % {:number => arg3}
    418:       end
    419:       div = arg3
    420:     else
    421:       msgid = arg1
    422:       msgid_plural = arg2
    423:       n = arg3
    424:       div = arg4
    425:     end
    426:
    427:     cached_key = [bound_target, Locale.current, msgid + "\000" + msgid_plural]
    428:     msgs = nil
    429:     if @@__cached
    430:       if @@__cache_nmsgids.has_key?(cached_key)
    431:         msgs = @@__cache_nmsgids[cached_key]  # [msgstr, cond_as_string]
    432:       end
    433:     end
    434:     unless msgs
    435:       # Use "for"(not "each") to support JRuby 1.1.0.
    436:       for target in bound_targets(self)
    437:         manager = @@__textdomainmanagers[target]
    438:         for textdomain in manager.textdomains
    439:           msgs = textdomain[1].ngettext_data(msgid, msgid_plural)
    440:           break if msgs
    441:         end
    442:         break if msgs
    443:       end
    444:       msgs = [[msgid, msgid_plural], "n != 1"] unless msgs
    445:       @@__cache_nmsgids[cached_key] = msgs
    446:     end
    447:     msgstrs = msgs[0]
    448:     if div and msgstrs[0] == msgid
    449:       if index = msgstrs[0].rindex(div)
    450:         msgstrs[0] = msgstrs[0][(index + 1)..-1]
    451:       end
    452:     end
    453:     plural = eval(msgs[1])
    454:     if plural.kind_of?(Numeric)
    455:       ret = msgstrs[plural]
    456:     else
    457:       ret = plural ? msgstrs[1] : msgstrs[0]
    458:     end
    459:     ret
    460:   end

output_charset()

Gets the current output_charset which is set using GetText.set_output_charset.

- Returns: output_charset.

[Source]

         # File lib/gettext.rb, line 551
    551:   def output_charset
    552:     TextDomainManager.output_charset || locale.charset
    553:   end

output_charset=(charset)

Same as GetText.set_output_charset

- charset: an output_charset
- Returns: charset

[Source]

         # File lib/gettext.rb, line 545
    545:   def output_charset=(charset)
    546:     TextDomainManager.output_charset = charset
    547:   end

p_(msgctxt, msgid)

Alias for pgettext

pgettext(msgctxt, msgid)
p_(msgctxt, msgid)

Translates msgid with msgctxt. This methods is similer with s_().

     e.g.) p_("File", "New")   == s_("File|New")
           p_("File", "Open")  == s_("File|Open")

- msgctxt: the message context.
- msgid: the message id.
- Returns: the localized text by msgid. If there are no localized text, it returns msgid.

See: www.gnu.org/software/autoconf/manual/gettext/Contexts.html

[Source]

         # File lib/gettext.rb, line 320
    320:   def pgettext(msgctxt, msgid)
    321:     sgettext(msgctxt + "\004" + msgid, "\004")
    322:   end

remove_all_textdomains()

for testing.

[Source]

         # File lib/gettext.rb, line 597
    597:   def remove_all_textdomains
    598:     clear_cache
    599:     @@__textdomainmanagers = {}
    600:   end

rgettext(targetfiles = nil, out = STDOUT)

Creates a po-file from targetfiles(ruby-script-files, ActiveRecord, .rhtml files, glade-2 XML files), then output the result to out. If no parameter is set, it behaves same as command line tools(rgettet).

This function is a part of GetText.create_pofiles. Usually you don‘t need to call this function directly.

Note for ActiveRecord, you need to run your database server and configure the config/database.xml correctly before execute this function.

- targetfiles: An Array of po-files or nil.
- out: output IO or output path.
- Returns: self

[Source]

         # File lib/gettext/rgettext.rb, line 265
    265:   def rgettext(targetfiles = nil, out = STDOUT)
    266:     RGetText.run(targetfiles, out)
    267:     self
    268:   end

rmsgfmt(targetfile = nil, output_path = nil)

Creates a mo-file from a targetfile(po-file), then output the result to out. If no parameter is set, it behaves same as command line tools(rmsgfmt).

- targetfile: An Array of po-files or nil.
- output_path: output path.
- Returns: the MOFile object.

[Source]

        # File lib/gettext/rmsgfmt.rb, line 79
    79:   def rmsgfmt(targetfile = nil, output_path = nil)
    80:     RMsgfmt.run(targetfile, output_path)
    81:   end

rmsgmerge(reference = nil, definition = nil, out = STDOUT)

Experimental

[Source]

         # File lib/gettext/rmsgmerge.rb, line 489
    489:   def rmsgmerge(reference = nil, definition = nil, out = STDOUT)
    490:     RMsgMerge.run(reference, definition, out)
    491:   end

s_(msgid, div = '|')

Alias for sgettext

set_cgi(cgi_)

Sets a CGI object.

- cgi_: CGI object
- Returns: self

[Source]

        # File lib/gettext/cgi.rb, line 22
    22:   def set_cgi(cgi_)
    23:     Locale.set_cgi(cgi_)
    24:   end

set_locale(locale, this_target_only = false)

Sets the current locale to the current class/module

Notice that you shouldn‘t use this for your own Libraries.

- locale: a locale string or Locale::Object.
- this_target_only: true if you want to change the current class/module only.

Otherwise, this changes the locale of the current class/module and its ancestors. Default is false.

- Returns: self

[Source]

         # File lib/gettext.rb, line 470
    470:   def set_locale(locale, this_target_only = false)
    471:     ret = nil
    472:     if locale
    473:       if locale.kind_of? Locale::Object
    474:         ret = locale
    475:       else
    476:         ret = Locale::Object.new(locale.to_s)
    477:       end
    478:       ret.charset = TextDomainManager.output_charset if TextDomainManager.output_charset
    479:       Locale.set(ret)
    480:     else
    481:       Locale.set(nil)
    482:       ret = Locale.get
    483:     end
    484:     if this_target_only
    485:       manager = @@__textdomainmanagers[bound_target]
    486:       if manager
    487:         manager.set_locale(ret, ! cached?)
    488:       end
    489:     else
    490:       each_textdomain {|textdomain|
    491:         textdomain.set_locale(ret, ! cached?)
    492:       }
    493:     end
    494:     self
    495:   end

set_locale_all(locale)

Sets current locale to the all textdomains.

Note that you shouldn‘t use this for your own Libraries.

- locale: a locale string or Locale::Object, otherwise nil to use default locale.
- Returns: self

[Source]

         # File lib/gettext.rb, line 502
    502:   def set_locale_all(locale)
    503:     ret = nil
    504:     if locale
    505:       if locale.kind_of? Locale::Object
    506:         ret = locale
    507:       else
    508:         ret = Locale::Object.new(locale.to_s)
    509:       end
    510:     else
    511:       ret = Locale.default
    512:     end
    513:     ret.charset = TextDomainManager.output_charset if TextDomainManager.output_charset
    514:     Locale.set_current(ret)
    515:     TextDomainManager.each_all {|textdomain|
    516:       textdomain.set_locale(ret, ! cached?)
    517:     }
    518:     self
    519:   end

set_output_charset(charset)

Sets charset(String) such as "euc-jp", "sjis", "CP932", "utf-8", … You shouldn‘t use this in your own Libraries.

- charset: an output_charset
- Returns: charset

[Source]

         # File lib/gettext.rb, line 537
    537:   def set_output_charset(charset)
    538:     TextDomainManager.output_charset = charset
    539:     self
    540:   end

setlocale(locale)

Alias for locale=

sgettext(msgid, div = '|')
s_(msgid, div = '|')

Translates msgid, but if there are no localized text, it returns a last part of msgid separeted "div".

- msgid: the message id.
- div: separator or nil.
- Returns: the localized text by msgid. If there are no localized text, it returns a last part of msgid separeted "div".

See: www.gnu.org/software/gettext/manual/html_mono/gettext.html#SEC151

[Source]

         # File lib/gettext.rb, line 279
    279:   def sgettext(msgid, div = '|')
    280:     cached_key = [bound_target, Locale.current, msgid]
    281:     if cached?
    282:       if @@__cache_msgids[cached_key]
    283:         return @@__cache_msgids[cached_key]
    284:       end
    285:     end
    286:     msg = nil
    287:
    288:     # Use "for"(not "each") to support JRuby 1.1.0.
    289:     for target in bound_targets(self)
    290:       manager = @@__textdomainmanagers[target]
    291:       for textdomain in manager.textdomains
    292:         msg = textdomain[1].gettext(msgid)
    293:         break if msg
    294:       end
    295:       break if msg
    296:     end
    297:
    298:     msg ||= msgid
    299:     if div and msg == msgid
    300:       if index = msg.rindex(div)
    301:         msg = msg[(index + 1)..-1]
    302:       end
    303:     end
    304:     @@__cache_msgids[cached_key] = msg
    305:   end

textdomain(domainname)

Binds a existed textdomain to your program. This is the same function with GetText.bindtextdomain but simpler(and faster) than bindtextdomain. Notice that you need to call GetText.bindtextdomain first. If the domainname hasn‘t bound yet, raises GetText::NoboundTextDomainError.

- domainname: a textdomain name.
- Returns: the GetText::TextDomainManager.

[Source]

         # File lib/gettext.rb, line 128
    128:   def textdomain(domainname)
    129:     domain = TextDomainManager.textdomain(domainname)
    130:     raise NoboundTextDomainError, "#{domainname} is not bound." unless domain
    131:     target_key = bound_target
    132:     manager = @@__textdomainmanagers[target_key]
    133:     unless manager
    134:       manager = TextDomainManager.new(target_key, Locale.get)
    135:       @@__textdomainmanagers[target_key] = manager
    136:     end
    137:     manager.set_locale(Locale.get)
    138:     manager.add_textdomain(domainname)
    139:     manager
    140:   end

textdomain_to(klass, domainname)

Includes GetText module and bind an exsited textdomain to a class. See textdomain for more detail.

- klass: the target ruby class.
- domainname: the textdomain name.

[Source]

         # File lib/gettext.rb, line 146
    146:   def textdomain_to(klass, domainname)
    147:     ret = nil
    148:     klass.module_eval {
    149:       include GetText
    150:       ret = textdomain(domainname)
    151:     }
    152:     ret
    153:   end

update_pofiles(textdomain, files, app_version, po_root = "po", refpot = "tmp.pot")

At first, this creates the #{po_root}/#{domainname}.pot file using GetText.rgettext. Since 2nd time, this updates(merges) the #{po_root}/#{domainname}.pot and all of the #{po_root}/#{lang}/#{domainname}.po files under "po_root" using "msgmerge".

Note "msgmerge" tool is included in GNU GetText. So you need to install GNU GetText.

See <HOWTO maintain po/mo files(www.yotabanana.com/hiki/ruby-gettext-howto-manage.html)> for more detals.

- domainname: the textdomain name.
- targetfiles: An Array of target files or nil (See GetText.rgettext for more details).
- app_version: the application information which appears "Project-Id-Version: #{app_version}" in the pot/po-files.
- po_root: the root directory of po-files.
- refpot: set the temporary file name. You shouldn‘t use this(It will be removed).

     (e.g.) GetText.update_pofiles("myapp", Dir.glob("lib/*.rb"), "myapp 1.0.0")

[Source]

         # File lib/gettext/utils.rb, line 145
    145:   def update_pofiles(textdomain, files, app_version, po_root = "po", refpot = "tmp.pot")
    146:     rgettext(files, refpot)
    147:     msgmerge_all(textdomain, app_version, po_root, refpot)
    148:     File.delete(refpot)
    149:   end

[Validate]