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# encoding: utf-8
=begin
* Name: SiSU
* Description: a framework for document structuring, publishing and search
* Author: Ralph Amissah
* Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
2007, 2008, 2009, 2010, 2011, 2012, 2013 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>
* Download:
<http://www.sisudoc.org/sisu/en/SiSU/download.html>
* Ralph Amissah
<ralph@amissah.com>
<ralph.amissah@gmail.com>
** Description: system environment, resource control and configuration details
=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_strke_c]}/,'\1').
gsub(/#{Mx[:fa_superscript_o]}(\d+)#{Mx[:fa_superscript_c]}/,'[\1]').
gsub(/#{Mx[:fa_superscript_o]}(.+?)#{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,'<').gsub(/>/m,'>')
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.type =='sha256') ? true : false)
@sha_ ? (require 'digest/sha2') : (require 'digest/md5')
end
def digest(txt)
d=nil
if @sha_
for hash_class in [ Digest::SHA256 ]
d=hash_class.hexdigest(txt)
end
else
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
en_dgst,img_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=[]
img_dgst={}
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.cmd,"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.cmd =~/q/
nil
end
img_type = /\S+\.(png|jpg|gif)/.match(i)[1]
not_found_msg='image not found'
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
en_dgst,img_dgst={},{}
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__
|