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fdd90bab2b
git-svn-id: https://svn.redmine.org/redmine/trunk@22987 e93f8b46-1217-0410-a6f0-8f06a7374b81
114 lines
3.2 KiB
Ruby
114 lines
3.2 KiB
Ruby
# frozen_string_literal: true
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# Redmine - project management software
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# Copyright (C) 2006- Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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module Redmine
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module CodesetUtil
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def self.replace_invalid_utf8(str)
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return nil if str.nil?
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str = str.dup
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str.force_encoding('UTF-8')
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unless str.valid_encoding?
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str = str.encode("UTF-16LE", :invalid => :replace,
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:undef => :replace, :replace => '?').encode("UTF-8")
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end
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str
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end
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def self.to_utf8(str, encoding)
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return if str.nil?
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str = str.b
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if str.empty?
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str.force_encoding("UTF-8")
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return str
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end
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enc = encoding.blank? ? "UTF-8" : encoding
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if enc.casecmp("UTF-8") != 0
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str.force_encoding(enc)
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str = str.encode("UTF-8", :invalid => :replace,
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:undef => :replace, :replace => '?')
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else
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str = replace_invalid_utf8(str)
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end
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str
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end
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def self.to_utf8_by_setting(str)
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return if str.nil?
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str = str.dup
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self.to_utf8_by_setting_internal(str).force_encoding('UTF-8')
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end
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def self.to_utf8_by_setting_internal(str)
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return if str.nil?
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str = str.b
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return str if str.empty?
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return str if /\A[\r\n\t\x20-\x7e]*\Z/n.match?(str) # for us-ascii
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str.force_encoding('UTF-8')
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encodings = Setting.repositories_encodings.split(',').collect(&:strip)
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encodings.each do |encoding|
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begin
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str.force_encoding(encoding)
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utf8 = str.encode('UTF-8')
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return utf8 if utf8.valid_encoding?
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rescue
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# do nothing here and try the next encoding
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end
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end
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self.replace_invalid_utf8(str).force_encoding('UTF-8')
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end
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def self.from_utf8(str, encoding)
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return if str.nil?
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str = str.dup
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str ||= ''
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str.force_encoding('UTF-8')
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if encoding.casecmp('UTF-8') != 0
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str = str.encode(encoding, :invalid => :replace,
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:undef => :replace, :replace => '?')
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else
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str = self.replace_invalid_utf8(str)
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end
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end
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def self.guess_encoding(str)
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return if str.nil?
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str = str.dup
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encodings = Setting.repositories_encodings.split(',').collect(&:strip)
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encodings = encodings.presence || ['UTF-8']
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encodings.each do |encoding|
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begin
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str.force_encoding(encoding)
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rescue Encoding::ConverterNotFoundError
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# ignore if the encoding name is invalid
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end
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return encoding if str.valid_encoding?
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end
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nil
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end
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end
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end
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