Redmine/vendor/plugins/gloc-1.1.0/lib/gloc-internal.rb

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# Copyright (c) 2005-2006 David Barri
require 'iconv'
require 'gloc-version'
module GLoc
class GLocError < StandardError #:nodoc:
end
class InvalidArgumentsError < GLocError #:nodoc:
end
class InvalidKeyError < GLocError #:nodoc:
end
class RuleNotFoundError < GLocError #:nodoc:
end
class StringNotFoundError < GLocError #:nodoc:
end
class << self
private
def _add_localized_data(lang, symbol_hash, override, target) #:nodoc:
lang= lang.to_sym
if override
target[lang] ||= {}
target[lang].merge!(symbol_hash)
else
symbol_hash.merge!(target[lang]) if target[lang]
target[lang]= symbol_hash
end
end
def _add_localized_strings(lang, symbol_hash, override=true, strings_charset=nil) #:nodoc:
_charset_required
# Convert all incoming strings to the gloc charset
if strings_charset
Iconv.open(get_charset(lang), strings_charset) do |i|
symbol_hash.each_pair {|k,v| symbol_hash[k]= i.iconv(v)}
end
end
# Convert rules
rules= {}
old_kcode= $KCODE
begin
$KCODE= 'u'
Iconv.open(UTF_8, get_charset(lang)) do |i|
symbol_hash.each {|k,v|
if /^_gloc_rule_(.+)$/ =~ k.to_s
v= i.iconv(v) if v
v= '""' if v.nil?
rules[$1.to_sym]= eval "Proc.new do #{v} end"
end
}
end
ensure
$KCODE= old_kcode
end
rules.keys.each {|k| symbol_hash.delete "_gloc_rule_#{k}".to_sym}
# Add new localized data
LOWERCASE_LANGUAGES[lang.to_s.downcase]= lang
_add_localized_data(lang, symbol_hash, override, LOCALIZED_STRINGS)
_add_localized_data(lang, rules, override, RULES)
end
def _charset_required #:nodoc:
set_charset UTF_8 unless CONFIG[:internal_charset]
end
def _get_internal_state_vars
[ CONFIG, LOCALIZED_STRINGS, RULES, LOWERCASE_LANGUAGES ]
end
def _get_lang_file_list(dir) #:nodoc:
dir= File.join(RAILS_ROOT,'lang') if dir.nil?
Dir[File.join(dir,'*.{yaml,yml}')]
end
def _l(symbol, language, *arguments) #:nodoc:
symbol= symbol.to_sym if symbol.is_a?(String)
raise InvalidKeyError.new("Symbol or String expected as key.") unless symbol.kind_of?(Symbol)
translation= LOCALIZED_STRINGS[language][symbol] rescue nil
if translation.nil?
raise StringNotFoundError.new("There is no key called '#{symbol}' in the #{language} strings.") if CONFIG[:raise_string_not_found_errors]
translation= symbol.to_s
end
begin
return translation % arguments
rescue => e
raise InvalidArgumentsError.new("Translation value #{translation.inspect} with arguments #{arguments.inspect} caused error '#{e.message}'")
end
end
def _l_has_string?(symbol,lang) #:nodoc:
symbol= symbol.to_sym if symbol.is_a?(String)
LOCALIZED_STRINGS[lang].has_key?(symbol.to_sym) rescue false
end
def _l_rule(symbol,lang) #:nodoc:
symbol= symbol.to_sym if symbol.is_a?(String)
raise InvalidKeyError.new("Symbol or String expected as key.") unless symbol.kind_of?(Symbol)
r= RULES[lang][symbol] rescue nil
raise RuleNotFoundError.new("There is no rule called '#{symbol}' in the #{lang} rules.") if r.nil?
r
end
def _verbose_msg(type=nil)
return unless CONFIG[:verbose]
x= case type
when :stats
x= valid_languages.map{|l| ":#{l}(#{LOCALIZED_STRINGS[l].size}/#{RULES[l].size})"}.sort.join(', ')
"Current stats -- #{x}"
else
yield
end
puts "[GLoc] #{x}"
end
public :_l, :_l_has_string?, :_l_rule
end
private
unless const_defined?(:LOCALIZED_STRINGS)
LOCALIZED_STRINGS= {}
RULES= {}
LOWERCASE_LANGUAGES= {}
end
end