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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 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_DbText
class Prepare
def special_character_escape(str)
str=str.gsub(/'/,"''"). #string.gsub!(/'/,"\047") #string.gsub!(/'/,"\\'")
gsub(/(\\)/m,'\1\1'). #ok but with warnings, double backslash on sqlite #str.gsub!(/[\\]/m,'\\x5C') #ok but with warnings, but not for sqlite #str.gsub!(/(\\)/m,'\1') #ok for sqlite not for pgsql
gsub(/#{Mx[:br_line]}|#{Mx[:br_nl]}/,"<br />\n").
gsub(/#{Mx[:tag_o]}\S+?#{Mx[:tag_c]}/,''). #check
gsub(/#{Mx[:lnk_o]}\s*(\S+?\.(?:png|jpg))(?:\s+\d+x\d+)?(.+?)#{Mx[:lnk_c]}\S+/,'[image: \1] \2').
gsub(/#{Mx[:lnk_o]}\s*(.+?)\s*#{Mx[:lnk_c]}(?:file|ftp):\/\/\S+?([.,!?]?(?:\s|$))/,'\1\2').
gsub(/#{Mx[:lnk_o]}\s*(.+?)\s*#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/,'\1')
end
def clean_searchable_text(arr) #produce clean, searchable, plaintext from document source
txt_arr,en=[],[]
arr=(arr.is_a?(String)) ? arr.split(/\n+/m) : arr
arr.each do |s|
s=s.gsub(/([*\/_-])\{(.+?)\}\1/m,'\2').
gsub(/^(?:block|group|poem|code)\{/m,'').gsub(/^\}(?:block|group|poem|code)/m,'').
gsub(/\A(?:@\S+:\s+.+)\Z/m,'')
if s =~/^:A~/
if defined? @md.creator \
and defined? @md.creator.author \
and not @md.creator.author.empty?
s=s.gsub(/@author/,@md.creator.author)
else
SiSU_Screen::Ansi.new('v','WARNING Document Author information missing; provide @creator: :author:',@md.fnb).warn unless @md.opt.cmd.inspect =~/q/
end
if defined? @md.title \
and defined? @md.title.full \
and not @md.title.full.empty?
s=s.gsub(/@title/,@md.title.full)
else
SiSU_Screen::Ansi.new('v','WARNING Document Title missing; provide @title:',@md.fnb).warn unless @md.opt.cmd.inspect =~/q/
end
end
s=s.gsub(/^(?:_[1-9]\*?|_\*)\s+/m,'').
gsub(/^(?:[1-9]\~(\S+)?)\s+/m,'').
gsub(/^(?::?[A-C]\~(\S+)?)\s+/m,'').
gsub(/^%{1,3} .+/m,''). #removed even if contained in code block
gsub(/<br>/m,' ')
en << s.scan(/~\{\s*(.+?)\s*\}~/m)
s=s.gsub(/~\{.+?\}~/m,'').
gsub(/ \s+/m,' ')
#special_character_escape(s)
s
end
txt_arr << arr << en
#txt_arr=txt_arr.flatten
txt=txt_arr.flatten.join("\n")
txt=special_character_escape(txt)
txt
end
def strip_markup(str) #define rules, make same as in dal clean
str=str.gsub(/#{Mx[:fa_superscript_o]}(\d+)#{Mx[:fa_superscript_c]}/,'[\1]').
gsub(/(?: \\;|#{Mx[:nbsp]})+/,' ').
gsub(/#{Mx[:tc_o]}#{Mx[:tc_p]}#{Mx[:tc_p]}\d+(.+)#{Mx[:tc_c]}/u,'\1'). #tables
gsub(/#{Mx[:tc_p]}#{Mx[:tc_p]}\d+#{Mx[:tc_p]}/u,' '). #tables
gsub(/#{Mx[:tc_p]}/u,' '). #tables tidy later
gsub(/<.+?>/,'').
gsub(/#{Mx[:lnk_o]}.+?\.(?:png|jpg|gif).+?#{Mx[:lnk_c]}(?:file|ftp)\/\/:\S+ /,' [image] '). # else image names found in search
gsub(/#{Mx[:lnk_o]}.+?\.(?:png|jpg|gif).+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/,' [image]'). # else image names found in search
gsub(/\s\s+/,' ').
strip
end
def unique_words(str)
a=str.scan(/[a-zA-Z0-9\\\/_-]{2,}/) #a=str.scan(/\S+{2,}/)
str=a.uniq.sort.join(' ')
str
end
end
end
__END__
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