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+=begin
+ * Name: SiSU information Structuring Universe - Structured information, Serialized Units
+ * Author: Ralph Amissah
+ * http://www.jus.uio.no/sisu
+ * http://www.jus.uio.no/sisu/SiSU/download.html
+
+ * Description: xml output (sax style) processing
+
+ * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Ralph Amissah
+
+ * License: GPL 2 or later
+
+ Summary of GPL 2
+
+ 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 2 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, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+ If you have Internet connection, the latest version of the GPL should be
+ available at these locations:
+ http://www.fsf.org/licenses/gpl.html
+ http://www.gnu.org/copyleft/gpl.html
+ http://www.jus.uio.no/sisu/gpl2.fsf
+
+ SiSU was first released to the public on January 4th 2005
+
+ SiSU uses:
+
+ * Standard SiSU markup syntax,
+ * Standard SiSU meta-markup syntax, and the
+ * Standard SiSU object citation numbering and system
+
+ © Ralph Amissah 1997, current 2007.
+ All Rights Reserved.
+
+ * Ralph Amissah: ralph@amissah.com
+ ralph.amissah@gmail.com
+
+ * Notes: tidy -xml sax.xml >> index.tidy
+=end
+module SiSU_document_structure_code
+ class Instantiate < SiSU_Param::Parameters::Instructions
+ @@flag={} #Beware!!
+ def initialize
+ @@flag['table_to']=false
+ @@counter=@@column=@@columns=0
+ @@line_mode=''
+ end
+ end
+ class Code
+ @@flag={} #Beware!!
+ def initialize(md,data)
+ @md,@data=md,data
+ Instantiate.new
+ end
+ def code
+ data=@data
+ tuned_file=[]
+ @tuned_group=[]
+ @@counter=0
+ @verse_count=0
+ data.each do |para|
+ para.gsub!(/(<:(?:code|verse|alt|group)>)\s/,'\1') #double check
+ para.gsub!(/(?:\n\s*\n)+/m,"\n")
+ if para =~/^code\{/
+ @@flag['code']=true
+ @@counter=1
+ para.gsub!(/^code\{.*/,'<:code>')
+ elsif para =~/^(?:poem)\{/
+ @@flag['poem']=true
+ para.gsub!(/^(poem)\{.*/,'<:verse>')
+ elsif para =~/^(?:alt|group)\{/ #group not tested, stub 2005
+ @@flag['group']=true
+ para.gsub!(/^(alt|group)\{.*/,'<:\1>')
+ end
+ if @@flag['code']
+ if @@flag['code'] and para =~/^\}code/
+ para.gsub!(/^\}code.*/,'<:code-end>')
+ @@flag['code']=false
+ end
+ if @@flag['code'] #or para =~/<:code-end>/ #and para =~/\S/
+ sub_array=para.dup
+ @line_mode=sub_array.scan(/.+/)
+ SiSU_document_structure_code::Code.new(@md,@line_mode).code_lines('code')
+ para=@line_mode.join
+ end
+ elsif @@flag['poem'] or @@flag['group']
+ if @@flag['poem'] and para =~/^\}(?:poem)/
+ para.gsub!(/^\}(poem).*/,"\n<:verse-end>")
+ @@flag['poem']=false
+ elsif @@flag['group'] and para =~/^\}(?:alt|group)/
+ para.gsub!(/^\}(alt|group).*/,'<:\1-end>')
+ @@flag['group']=false
+ end
+ if @@flag['poem'] or @@flag['group'] and para =~/\S/ \
+ and para !~/<:(verse|code|alt|group)(-end)?>/
+ sub_array=para.dup
+ @line_mode=sub_array.scan(/.+/)
+ type=if @@flag['poem']; 'poem'
+ else 'group'
+ end
+ SiSU_document_structure_code::Code.new(@md,@line_mode).code_lines(type)
+ div=if @@flag['poem'] and @verse_count > 0
+ "\n" + '<:verse-end>' + "\n\n" + '<:verse>'
+ else ''
+ end
+ @verse_count+=1 if @@flag['poem']
+ para = div + @line_mode.join
+ else para
+ end
+ end
+ if @@flag['code'] or @@flag['poem'] or @@flag['group']
+ @tuned_group << para if para =~/\S+/
+ elsif para =~/<:(?:code|alt|group|verse)-end>/
+ @verse_count=0
+ @tuned_group << para
+ if para =~/<:group-end>/
+ tuned_file << @tuned_group.join("\n")
+ else
+ tuned_file << @tuned_group.join
+ end
+ @tuned_group=[]
+ else tuned_file << para
+ end
+ end
+ tuned_file
+ end
+ def code_lines(type='')
+ data=@data
+ data.each do |line|
+ if line =~/\S/ and line !~/^(?:alt|code|group|poem)\{|^\}(?:alt|code|group|poem)|<:(?:code|verse|alt|group).+/
+ line.gsub!(/\s\s/,'&nbsp;&nbsp;')
+ line.gsub!(/^/,'<:codeline>') if type=='code' # try sort for texpdf special case
+ line.gsub!(/$/,'<:br>') #unless type=='code'
+ if @@flag['code']; @@counter+=1
+ else
+ end
+ end
+ end
+ end
+ end
+end
+__END__