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