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# encoding: utf-8
# - Name: SiSU
#
#   - Description: documents, structuring, processing, publishing, search
#     utils
#
#   - Author: Ralph Amissah
#     <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, 2016, 2017, 2019,
#     2020, 2021, 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
#
#   - Homepages:
#     <http://www.sisudoc.org>
#
#   - Git
#     <https://git.sisudoc.org/projects/>
#     <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
#     <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
module SiSU_Composite_Doc_Utils
  def inserts_array(loadfilename)
    IO.readlines(loadfilename,'')
  end
  def insert_filename?(para)
    if para =~ /^<<\s+((?:https?|file):\/\/\S+?\.ss[it])$/ # and NetTest
      url($1.strip)
    elsif para =~/^<<\s*(\S+?\.ss[it])$/
      $1.strip
    end
  end
  def extract_filenames(loadfilename,file_names_arr)
    file_names_arr << loadfilename
    ssi_files=[]
    if loadfilename =~/\S+?\.ss[im]$/
      inserts_array(loadfilename).each do |para|
        filen=insert_filename?(para)
        file_names_arr << filen
        if filen =~/\S+?\.ssi$/
          ssi_files << filen
        end
      end
    end
    ssi_files.each do |fn|
      extract_filenames(fn,file_names_arr)
    end
    file_names_arr.flatten.compact.uniq.sort
  end
  def composite_and_imported_filenames_array(loadfilename)
    file_names_arr=[]
    begin
      if FileTest.file?(loadfilename)
        if loadfilename =~/\S+?\.ss[itm]$/
          if (@opt.act[:verbose][:set]==:on \
          || @opt.act[:verbose_plus][:set]==:on \
          || @opt.act[:maintenance][:set]==:on)
            SiSU_Screen::Ansi.new(
              @opt.act[:color_state][:set],
              'loading:',
              loadfilename,
            ).txt_grey
          end
          file_names_arr=extract_filenames(loadfilename,file_names_arr)
        end
      end
      if (@opt.act[:verbose_plus][:set]==:on \
      || @opt.act[:maintenance][:set]==:on)
        p file_names_arr ;p file_names_arr.length
      end
      file_names_arr
    rescue
      SiSU_Errors::Rescued.new($!,$@,@opt.selections.str,@opt.fns).location do
        __LINE__.to_s + ':' + __FILE__
      end
    ensure
    end
  end
end
__END__