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+# encoding: utf-8
+=begin
+
+* Name: SiSU
+
+** Description: documents, structuring, processing, publishing, search
+*** po4a
+
+** 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/src_po4a_shelf_set.rb;hb=HEAD>
+
+=end
+module SiSU_Po4aUtils
+ class Wrap
+ def initialize(md,orig='',trans='',is_desc='',n_char_max=76,n_indent=0,n_hang=nil)
+ @md,@orig,@trans,@is_desc,@n_char_max,@n_indent=
+ md, orig, trans, is_desc, n_char_max, n_indent
+ @n_char_max_extend = n_char_max
+ @br="\n"
+ @n_hang=n_hang ? n_hang : @n_indent
+ @po4a_identify_type='type: SiSU doc'
+ #@po4a_identify_type='type: Plain text'
+ end
+ def line_wrap
+ space=' '
+ spaces_indent,spaces_hang=
+ "#{@br}#{space*@n_indent}",space*@n_hang
+ pot,i=[],0
+ pot_array=(@trans.empty?) ? [@orig] : [@orig,@trans]
+ pot_array.each do |pa|
+ line=0
+ out=[]
+ out[line]=''
+ @oldword='' #REMOVE @oldword
+ pa=pa.gsub(/<br>/,' <br> ').
+ gsub(/#{Mx[:br_nl]}/,"\n\n")
+ words=pa.scan(/\n\n|\\\\\\|<br>|\S+/m)
+ while words != ''
+ word=words.shift
+ if not word
+ out[line] unless out[line].empty? #check
+ break
+ elsif word =~/\n\n/
+ word="\n"
+ @n_char_max_extend = @n_char_max + out[line].length
+ line=line
+ elsif (out[line].length + word.length) > (@n_char_max_extend - @n_indent) \
+ and out[line] =~/\S+/
+ @n_char_max_extend = @n_char_max
+ out[line].squeeze!(' ')
+ line += 1
+ end
+ if word
+ out[line]=if out[line] \
+ and out[line] !~/\S+$/m
+ "#{out[line]}#{word}"
+ elsif out[line] \
+ and out[line] =~/\S+/
+ "#{out[line]} #{word}"
+ else "#{word.strip}"
+ end
+ end
+ @oldword=word if word =~/\S+/
+ end
+ x=out.join(spaces_indent).gsub(/\A\n+/m,'').insert(0,spaces_hang)
+ z=[]
+ x.split(/\n/).each do |y|
+ y=y.gsub(/"/,'\"')
+ y=%{"#{y}"}
+ z << y
+ end
+ pot[i]=z.join("\n")
+ i +=1
+ pot
+ end
+ trans=(pot.length == 2) ? pot[1] : ''
+ po_str=<<WOK
+#. #{@po4a_identify_type} - #{@is_desc}
+#: en/#{@md.fns}:#{PotNumber.new.num}
+msgid ""
+#{pot[0]}
+msgstr ""
+#{trans}
+WOK
+ po_str
+ end
+ def no_line_wrap_block
+ pot,i=[],0
+ pot_array=(@trans.empty?) ? [@orig] : [@orig,@trans]
+ pot_array.each do |pa|
+ z=[]
+ pa.split(/\n\n/).each do |y|
+ y=y.gsub(/"/,'\"')
+ y=%{"#{y}"}
+ z << y if not y.empty?
+ end
+ pot[i]=z.join("\n")
+ i +=1
+ pot
+ end
+ trans=(pot.length == 2) ? pot[1] : ''
+ po_str=<<WOK
+#. #{@po4a_identify_type} - #{@is_desc}
+#: en/#{@md.fns}:#{PotNumber.new.num}
+#, no-wrap
+msgid ""
+#{pot[0]}
+msgstr ""
+#{trans}
+WOK
+ po_str
+ end
+ def line_wrap_indent1
+ @n_indent,@n_hang=2,2
+ line_wrap
+ end
+ def line_wrap_endnote
+ @n_indent,@n_hang=4,2
+ line_wrap
+ end
+ def array_wrap
+ if @orig.is_a?(Array)
+ @arr=[]
+ @orig.each do |line|
+ @arr << SiSU_TextUtils::Wrap.new(line,@n_char_max,@n_indent,@n_hang).line_wrap
+ end
+ end
+ @arr
+ end
+ end
+ class HeaderScan
+ def initialize(md,para)
+ @md,@p=md,para
+ end
+ def extract(tag,tag_content,type,attrib)
+ if dc_tag \
+ and dc_content
+ [dc_tag,dc_content,{dc_tag=>dc_content}]
+ else nil
+ end
+ end
+ def header(tag,tag_content,type='',attrib='') #this will break stuff and must be tested thoroughly 20060825
+ @tag,@tag_content,@type,@attrib=tag,tag_content,type,attrib
+ def label #element
+ @tag
+ end
+ def type
+ @type
+ end
+ def text
+ @tag_content
+ end
+ def info #element text
+ @tag_content
+ end
+ def attribute
+ @attrib
+ end
+ def element
+ @tag
+ end
+ def attrib
+ @attrib
+ end
+ def el
+ @tag
+ end
+ self
+ end
+ def start_is_match
+ case @p
+ when /^#{Mx[:meta_o]}(title)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,@md.title.full,'meta','dc') #dc 1
+ when /^#{Mx[:meta_o]}(creator|author)#{Mx[:meta_c]}\s*(.+?)$/ then header('creator',$2,'meta','dc') #dc 2
+ when /^#{Mx[:meta_o]}(subject)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','dc') #dc 3
+ when /^#{Mx[:meta_o]}(description)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','dc') #dc 4
+ when /^#{Mx[:meta_o]}(publisher)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','dc') #dc 5
+ when /^#{Mx[:meta_o]}(contributor)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','dc') #dc 6
+ when /^#{Mx[:meta_o]}(date)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','dc') #dc 7
+ when /^#{Mx[:meta_o]}(date\.created)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(date\.issued)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(date\.available)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(date\.valid)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(date\.modified)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(type)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','dc') #dc 8
+ when /^#{Mx[:meta_o]}(format)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','dc') #dc 9
+ when /^#{Mx[:meta_o]}(identifier)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','dc') #dc 10
+ when /^#{Mx[:meta_o]}(source)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','dc') #dc 11
+ when /^#{Mx[:meta_o]}(language)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','dc') #dc 12
+ when /^#{Mx[:meta_o]}(relation)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','dc') #dc 13
+ when /^#{Mx[:meta_o]}(coverage)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','dc') #dc 14
+ when /^#{Mx[:meta_o]}(rights)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','dc') #dc 15
+ when /^#{Mx[:meta_o]}(keywords)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(copyright)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(translator|translated_by)#{Mx[:meta_c]}\s*(.+?)$/ then header('translator',$2)
+ when /^#{Mx[:meta_o]}(illustrator|illustrated_by)#{Mx[:meta_c]}\s*(.+?)$/ then header('illustrator',$2)
+ when /^#{Mx[:meta_o]}(prepared_by)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(digitized_by)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(comments?)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(abstract)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(tags?)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(catalogue)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(class(?:ify)?_loc)#{Mx[:meta_c]}\s*(.+?)$/ then header('classify_loc',$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(class(?:ify)?_dewey)#{Mx[:meta_c]}\s*(.+?)$/ then header('classify_dewey',$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(class(?:ify)?_pg)#{Mx[:meta_c]}\s*(.+?)$/ then header('classify_pg',$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(class(?:ify)?_isbn)#{Mx[:meta_c]}\s*(.+?)$/ then header('classify_isbn',$2,'meta','extra')
+ when /^#{Mx[:meta_o]}(toc|structure)#{Mx[:meta_c]}\s*(.+?)$/ then header('structure',$2,'process','instruct')
+ when /^#{Mx[:meta_o]}(level|page|markup)#{Mx[:meta_c]}\s*(.+?)$/ then header('markup',$2,'process','instruct')
+ when /^#{Mx[:meta_o]}(bold)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'process','instruct')
+ when /^#{Mx[:meta_o]}(italics|itali[sz]e)#{Mx[:meta_c]}\s*(.+?)$/ then header('italicize',$2,'process','instruct')
+ when /^#{Mx[:meta_o]}(vocabulary|wordlist)#{Mx[:meta_c]}\s*(.+?)$/ then header('vocabulary',$2,'process','instruct')
+ when /^#{Mx[:meta_o]}(css|stylesheet)#{Mx[:meta_c]}\s*(.+?)$/ then header('css',$2,'process','instruct')
+ when /^#{Mx[:meta_o]}(links)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'process','instruct')
+ when /^#{Mx[:meta_o]}(prefix)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'process','instruct') #add a & b
+ when /^#{Mx[:meta_o]}(suffix)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'process','instruct')
+ when /^#{Mx[:meta_o]}(information)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'process','instruct')
+ when /^#{Mx[:meta_o]}(contact)#{Mx[:meta_c]}\s*(.+?)$/ then header($1,$2,'process','instruct')
+ when /^#{Mx[:meta_o]}(rcs|cvs)#{Mx[:meta_c]}\s*(.+?)$/ then header('version',$2,'process','instruct')
+ else nil
+ end
+ end
+ def dublin
+ (@p =~/^#{Mx[:meta_o]}\S+?#{Mx[:meta_c]}/) \
+ ? start_is_match
+ : nil
+ end
+ def meta
+ (@p =~/^#{Mx[:meta_o]}\S+?#{Mx[:meta_c]}/) \
+ ? start_is_match
+ : nil
+ end
+ end
+ class ParagraphNumber
+ def initialize(paranum)
+ @paranum=/(\d+)/m.match(paranum)[1]
+ end
+ def display
+ @paranum.gsub(/(\d+)/,'#\1')
+ end
+ end
+ class PotNumber
+ @@n=0
+ def initialize
+ @@n +=2
+ end
+ def num
+ @@n
+ end
+ def reset
+ @@n=0
+ end
+ end
+end
+__END__