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+# encoding: utf-8
+=begin
+
+* Name: SiSU
+
+** Description: documents, structuring, processing, publishing, search
+*** system environment, resource control and configuration details
+
+** Author: Ralph Amissah
+ <ralph@amissah.com>
+ <ralph.amissah@gmail.com>
+
+** Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+ 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 Ralph Amissah,
+ All Rights Reserved.
+
+** License: GPL 3 or later:
+
+ SiSU, a framework for document structuring, publishing and search
+
+ Copyright (C) Ralph Amissah
+
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the Free
+ Software Foundation, either version 3 of the License, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program. If not, see <http://www.gnu.org/licenses/>.
+
+ If you have Internet connection, the latest version of the GPL should be
+ available at these locations:
+ <http://www.fsf.org/licensing/licenses/gpl.html>
+ <http://www.gnu.org/licenses/gpl.html>
+
+ <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>
+
+** SiSU uses:
+ * Standard SiSU markup syntax,
+ * Standard SiSU meta-markup syntax, and the
+ * Standard SiSU object citation numbering and system
+
+** Hompages:
+ <http://www.jus.uio.no/sisu>
+ <http://www.sisudoc.org>
+
+** Git
+ <http://git.sisudoc.org/gitweb/?p=code/sisu.git;a=summary>
+ <http://git.sisudoc.org/gitweb/?p=code/sisu.git;a=blob;f=lib/sisu/shared_markup_alt.rb;hb=HEAD>
+
+=end
+module SiSU_TextRepresentation
+ class Alter
+ def initialize(x)
+ if x.is_a?(String)
+ @t_o,@s=nil,x
+ else
+ @t_o,@s=x,x.obj.dup
+ end
+ end
+ def strip_clean_of_extra_spaces # dal output tuned
+ @s=@s.dup
+ @s=@s.gsub(/[ ]+([,.;:?](?:$|\s))/,'\1') unless @s =~/#{Mx[:en_a_o]}|#{Mx[:en_b_o]}/
+ @s=@s.gsub(/ [ ]+/,' ').
+ gsub(/^ [ ]+/,'').
+ gsub(/ [ ]+$/,'').
+ gsub(/((?:#{Mx[:fa_bold_c]}|#{Mx[:fa_italics_c]})')[ ]+(s )/,'\1\2').
+ gsub(/((?:#{Mx[:fa_bold_c]}|#{Mx[:fa_italics_c]})')[ ]+(s )/,'\1\2')
+ end
+ def strip_clean_of_markup # text form used in sql db search, used for digest, define rules, make same as in db clean
+ @s=@s.dup #% same as db clean -->
+ @s=@s.gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,'\1').
+ gsub(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,'\1').
+ gsub(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,'\1').
+ gsub(/#{Mx[:fa_cite_o]}(.+?)#{Mx[:fa_cite_c]}/,'\1').
+ gsub(/#{Mx[:fa_insert_o]}(.+?)#{Mx[:fa_insert_c]}/,'\1').
+ gsub(/#{Mx[:fa_strike_o]}(.+?)#{Mx[:fa_strike_c]}/,'\1').
+ gsub(/#{Mx[:fa_superscript_o]}(\d+)#{Mx[:fa_superscript_c]}/,'[\1]').
+ gsub(/#{Mx[:fa_subscript_o]}(.+?)#{Mx[:fa_subscript_c]}/,'\1').
+ gsub(/#{Mx[:fa_hilite_o]}(.+?)#{Mx[:fa_hilite_c]}/,'\1').
+ gsub(/#{Mx[:gl_o]}#(?:126|152)#{Mx[:gl_c]}/i,'~').
+ gsub(/#{Mx[:en_a_o]}([\d*+]+)\s+(?:.+?)#{Mx[:en_a_c]}/,''). # endnote removed
+ gsub(/#{Mx[:en_b_o]}([\d*+]+)\s+(?:.+?)#{Mx[:en_b_c]}/,''). # endnote removed
+ gsub(/(?:#{Mx[:nbsp]})+/,' ').
+ gsub(/(?:#{Mx[:br_nl]})+/,"\n").
+ gsub(/(?:#{Mx[:br_paragraph]})+/,"\n").
+ gsub(/(?:#{Mx[:br_line]})+/,"\n").
+ gsub(/#{Mx[:gl_o]}(?:#lt|#060)#{Mx[:gl_c]}/,'<').
+ gsub(/#{Mx[:gl_o]}(?:#gt|#062)#{Mx[:gl_c]}/,'>').
+ gsub(/#{Mx[:gl_o]}#(?:038|amp)#{Mx[:gl_c]}/,'&').
+ gsub(/#{Mx[:gl_o]}#033#{Mx[:gl_c]}/,'!').
+ gsub(/#{Mx[:gl_o]}#035#{Mx[:gl_c]}/,'#').
+ gsub(/#{Mx[:gl_o]}#042#{Mx[:gl_c]}/,'*').
+ gsub(/#{Mx[:gl_o]}#045#{Mx[:gl_c]}/,'-').
+ gsub(/#{Mx[:gl_o]}#047#{Mx[:gl_c]}/,'/').
+ gsub(/#{Mx[:gl_o]}#095#{Mx[:gl_c]}/,'_').
+ gsub(/#{Mx[:gl_o]}#123#{Mx[:gl_c]}/,'{').
+ gsub(/#{Mx[:gl_o]}#125#{Mx[:gl_c]}/,'}').
+ gsub(/#{Mx[:gl_o]}#126#{Mx[:gl_c]}/,'~').
+ gsub(/#{Mx[:gl_o]}#169#{Mx[:gl_c]}/,'©').
+ gsub(/\s\s+/,' ').
+ gsub(/\s\s+/,' ').
+ strip
+ end
+ def semi_revert_markup # used for digest, define rules, make same as in db clean
+ if @t_o
+ @s=@s.gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,'*{\1}*').
+ gsub(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,'/{\1}/').
+ gsub(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,'_{\1}_').
+ gsub(/#{Mx[:fa_cite_o]}(.+?)#{Mx[:fa_cite_c]}/,'"{\1}"').
+ gsub(/#{Mx[:fa_insert_o]}(.+?)#{Mx[:fa_insert_c]}/,'+{\1}+').
+ gsub(/#{Mx[:fa_strike_o]}(.+?)#{Mx[:fa_strke_c]}/,'-{\1}-').
+ gsub(/#{Mx[:fa_superscript_o]}(.+?)#{Mx[:fa_superscript_c]}/,'^{\1}^').
+ gsub(/#{Mx[:fa_subscript_o]}(.+?)#{Mx[:fa_subscript_c]}/,',{\1},').
+ gsub(/#{Mx[:gl_o]}#(?:126|152)#{Mx[:gl_c]}/i,'~').
+ gsub(/#{Mx[:en_a_o]}([\d*+]+\s+.+?)#{Mx[:en_a_c]}/,'~{\1}~'). # endnote marker marked up
+ gsub(/#{Mx[:en_b_o]}([\d*+]+\s+.+?)#{Mx[:en_b_c]}/,'~[\1]~') # endnote marker marked up
+ if @t_o.is==:heading \
+ || @t_o.is==:para
+ @s=@s.gsub(/ [ ]+/,' ')
+ @s=@s.gsub(/(?:#{Mx[:nbsp]})+/,' ')
+ if @t_o.is==:heading
+ @s=@t_o.lv + '~ ' + @s
+ end
+ if @t_o.is==:para
+ if @t_o.bullet_
+ @s='_* ' + @s
+ end
+ if @t_o.indent.to_i > 0
+ @s="_#{@t_o.indent} " + @s
+ @s=@s.gsub(/^(_[1-9])\s_\*\s/,'\1* ')
+ end
+ end
+ end
+ if @t_o.is==:block \
+ || @t_o.is==:group \
+ || @t_o.is==:code
+ @s=@s.gsub(/#{Mx[:nbsp]}/,' ')
+ @s="#{@t_o.is.to_s}{\n\n#{@s}\n\n}#{@t_o.is.to_s}"
+ @s=@s.gsub(/(?:#{Mx[:br_nl]}|\n)+/m,"\n\n")
+ end
+ #dealing with poem and verse calls for change in dal, where start and end verse of poem are marked as such
+ @s=@s.strip
+ end
+ @s
+ end
+ def html_lite #test whether eventually can be used in db_import replacing shared_html_lite (search for SiSU_FormatShared)
+ if @t_o
+ @s=@s.gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,'<b>\1</b>').
+ gsub(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,'<i>\1</i>').
+ gsub(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,'<u>\1</u>').
+ gsub(/#{Mx[:fa_cite_o]}(.+?)#{Mx[:fa_cite_c]}/,'"\1"').
+ gsub(/#{Mx[:fa_insert_o]}(.+?)#{Mx[:fa_insert_c]}/,'+{\1}+').
+ gsub(/#{Mx[:fa_strike_o]}(.+?)#{Mx[:fa_strke_c]}/,'-{\1}-').
+ gsub(/#{Mx[:fa_superscript_o]}(.+?)#{Mx[:fa_superscript_c]}/,'<sup>\1</sup>').
+ gsub(/#{Mx[:fa_subscript_o]}(.+?)#{Mx[:fa_subscript_c]}/,'<sub>\1</sub>').
+ gsub(/#{Mx[:gl_o]}#(?:126|152)#{Mx[:gl_c]}/i,'~')
+ if @t_o.is !=:code
+ if @s =~/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/
+ wm=@s.scan(/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)|\S+/)
+ words=urls(wm)
+ @s=@s.gsub(/.+/m,words)
+ end
+ @s=@s.gsub(/#{Mx[:gl_o]}(#[0-9]{3})#{Mx[:gl_c]}/u,'&\1;').
+ gsub(/#{Mx[:gl_o]}#([a-z]{2,4})#{Mx[:gl_c]}/u,'&\1;').
+ gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'<a href="\1" target="_top">\1</a>'). #http ftp matches escaped, no decoration
+ gsub(/(#{Mx[:lnk_c]})#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,'\1<a href="\2" target="_top">\2</a>\3'). #special case \{ e.g. \}http://url
+ gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,%{#{@url_brace.xml_open}<a href="\\1" target="_top">\\1</a>#{@url_brace.xml_close}}) #http ftp matches with decoration
+ else
+ @s=@s.gsub(/</m,'&lt;').gsub(/>/m,'&gt;')
+ end
+ if @t_o.is==:paragraph
+ if @t_o.bullet_
+ @s=@s
+ end
+ if @t_o.indent > 0
+ @s=@s
+ end
+ end
+ if @t_o.is==:heading
+ @s=@s
+ end
+ else
+ p __FILE__ << ':' << __LINE__.to_s
+ end
+ @s
+ end
+ end
+ class ModifiedTextPlusHashDigest
+ def initialize(md,x)
+ @md=md
+ if x.is_a?(String)
+ @t_o,@s=nil,x
+ else
+ @t_o,@s=x,x.obj.dup
+ end
+ @env ||=SiSU_Env::InfoEnv.new(@md.fns)
+ @sha_ = @env.digest(@md.opt).type
+ begin
+ case @sha_
+ when :sha512
+ require 'digest/sha2'
+ when :sha256
+ require 'digest/sha2'
+ when :md5
+ require 'digest/md5'
+ end
+ rescue LoadError
+ SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error((@sha_ ? 'digest/sha2' : 'digest/md5') + ' NOT FOUND')
+ end
+ end
+ def digest(txt)
+ d=nil
+ case @sha_
+ when :sha512
+ for hash_class in [ Digest::SHA512 ]
+ d=hash_class.hexdigest(txt)
+ end
+ when :sha256
+ for hash_class in [ Digest::SHA256 ]
+ d=hash_class.hexdigest(txt)
+ end
+ when :md5
+ for hash_class in [ Digest::MD5 ]
+ d=hash_class.hexdigest(txt)
+ end
+ end
+ d
+ end
+ def strip_clean_of_markup
+ def txt
+ SiSU_TextRepresentation::Alter.new(@s).strip_clean_of_markup
+ end
+ def dgst
+ txt_dgst=digest(txt)
+ { txt: txt, dgst_txt: txt_dgst }
+ end
+ self
+ end
+ def semi_revert_markup
+ def txt
+ SiSU_TextRepresentation::Alter.new(@s).semi_revert_markup
+ end
+ def dgst
+ txt_dgst=digest(txt)
+ { txt: txt, dgst_txt: txt_dgst }
+ end
+ self
+ end
+ def composite
+ def stripped_clean(txt)
+ SiSU_TextRepresentation::Alter.new(txt).strip_clean_of_markup
+ end
+ def markup_reverted(txt)
+ SiSU_TextRepresentation::Alter.new(txt).semi_revert_markup
+ end
+ def images(imgs)
+ sys=SiSU_Env::SystemCall.new
+ line_image=[]
+ if imgs and imgs.length > 0
+ @image_name,@image_dgst,@img=[],[],[]
+ imgs.each do |i|
+ image_source=if FileTest.file?("#{@env.path.image_source_include_local}/#{i}")
+ @env.path.image_source_include_local
+ elsif FileTest.file?("#{@env.path.image_source_include_remote}/#{i}")
+ @env.path.image_source_include_remote
+ elsif FileTest.file?("#{@env.path.image_source_include}/#{i}")
+ @env.path.image_source_include
+ else
+ SiSU_Screen::Ansi.new(
+ @md.opt.act[:color_state][:set],
+ "ERROR - image:",
+ %{"#{i}" missing},
+ "search locations: #{@env.path.image_source_include_local}, #{@env.path.image_source_include_remote} and #{@env.path.image_source_include}"
+ ).error2 unless @md.opt.act[:quiet][:set]==:on
+ nil
+ end
+ img_type = /\S+\.(png|jpg|gif)/.match(i)[1]
+ if image_source
+ para_image = image_source + '/' + i
+ image_name = i
+ image_dgst =(@sha_ ? sys.sha256(para_image) : sys.md5(para_image))
+ else
+ image_name = i + ' [image missing]'
+ image_dgst = ''
+ end
+ line_image << { img_dgst: image_dgst[1], img_name: image_name, img_type: img_type }
+ end
+ end
+ line_image
+ end
+ def endnotes(en)
+ en_dgst=[]
+ if en and en.length > 0
+ en.flatten.each do |e|
+ note_no=e.gsub(/^([\d*+]+)\s+.+/,'\1')
+ e=digest(stripped_clean(e))
+ note_dgst=digest(e)
+ en_dgst << { note_number: note_no, note_dgst: note_dgst }
+ end
+ end
+ en_dgst
+ end
+ def dgst
+ if @t_o.of !=:comment \
+ && @t_o.of !=:structure \
+ && @t_o.of !=:layout
+ txt_stripped_dgst=digest(stripped_clean(@t_o))
+ txt_markup_reverted_dgst=digest(markup_reverted(@t_o))
+ endnotes_dgst=[]
+ rgx_notes=/(?:#{Mx[:en_a_o]}|#{Mx[:en_b_o]})([\d*+]+\s+.+?)(?:#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/
+ notes=@t_o.obj.scan(rgx_notes)
+ endnotes_dgst=endnotes(notes)
+ rgx_image=/#{Mx[:lnk_o]}(\S+\.(?:png|jpg|gif))\s.+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/
+ imgs=if (@t_o.is==:para \
+ || @t_o.is==:image) \
+ and @t_o.obj =~rgx_image
+ imgs=@t_o.obj.scan(rgx_image).flatten
+ line_image=images(imgs)
+ end
+ dgst={ is: @t_o.is, ocn: @t_o.ocn, dgst_stripped_txt: txt_stripped_dgst, dgst_markedup_txt: txt_markup_reverted_dgst }
+ dgst[:endnotes]=endnotes_dgst if endnotes_dgst and endnotes_dgst.length > 0
+ dgst[:images]=line_image if line_image and line_image.length > 0
+ end
+ dgst
+ end
+ self
+ end
+ end
+end
+__END__