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-*- mode: org -*-
#+TITLE:       SiSU
#+DESCRIPTION: sisu build
#+FILETAGS:    :sisu:build:
#+AUTHOR:      Ralph Amissah
#+EMAIL:       [[mailto:ralph.amissah@gmail.com][ralph.amissah@gmail.com]]
#+COPYRIGHT:   Copyright (C) 2015 - 2020 Ralph Amissah
#+LANGUAGE:    en
#+STARTUP:     content hideblocks hidestars noindent entitiespretty
#+OPTIONS:     H:3 num:nil toc:t \n:nil @:t ::t |:t ^:nil _:nil -:t f:t *:t <:t
#+PROPERTY:    header-args  :exports code
#+PROPERTY:    header-args+ :noweb yes
#+PROPERTY:    header-args+ :eval no
#+PROPERTY:    header-args+ :results no
#+PROPERTY:    header-args+ :cache no
#+PROPERTY:    header-args+ :padline no
#+PROPERTY:    header-args+ :mkdirp yes

* sisu git CHANGELOG TODO
** git used TODO

#+BEGIN_SRC sh
CHL="data/doc/sisu/CHANGELOG"
git log --pretty=format:'-_-%+s %+as %ae%+h%d%+b' --no-merges \
| sed "/^\\s*$/d" | sed "s/^\([ ]\)*\*/\1-/" | sed "s/ \+$//" | sed "s/^-_-$//" \
> ${CHL}
#+END_SRC

** alt

#+BEGIN_SRC sh
CHL="data/doc/sisu/CHANGELOG"
git log --pretty=format:"-_-_%+s %+as %ae%+h%d%+b" --no-merges \
> ${CHL} && sed -i '/^$/d; s/^\([ ]\)*\*/\1-/; s/ \+$//; s/^-_-_//' ${CHL}
#+END_SRC

** +considered+

#+BEGIN_SRC sh
LOG_0="changelog_0_"
git log --decorate --sparse --date=short --no-merges --abbrev-commit --format=medium \
> ${LOG_0} && sed -i 's/^[ ]\+$//; /^$/d' ${LOG_0}
#+END_SRC

#+BEGIN_SRC sh
LOG_1="changelog_1_"
git log --pretty=format:"%h %as - %s%d <%ae> %+b" --no-merges \
> ${LOG_1} && sed -i '/^$/d; s/^\([ ]\)*\*/\1-/; s/ \+$//' ${LOG_1}
#+END_SRC

#+BEGIN_SRC sh
LOG_2="data/doc/sisu/CHANGELOG_1_"
git log --pretty=format:"%h %ad - %s%d [%an]" --graph --date=short --no-merges > ${LOG_2}
#+END_SRC

* sisu version TODO

#+HEADER: :tangle ../setup/sisu_version.rb
#+BEGIN_SRC ruby
#% constants
module SiSUversion
  SiSU_version                       = '7.3.1'
end
module Dev
  GPGpubKey                          = '1BB4B289'
end
#+END_SRC

* +makefile+                                                         :makefile:

#+HEADER: :NO-tangle ../makefile
#+BEGIN_SRC makefile
#+END_SRC

* qi (quick install)
** bin

#+BEGIN_SRC ruby :tangle ../qi  :tangle-mode (identity #o755) :shebang #!/usr/bin/env ruby
=begin

-  Description:

-  Homepage: <https://sisudoc.org>

-  Copyright: (C) 2015, 2023 Ralph Amissah

-  License:

-  Ralph Amissah <ralph.amissah@gmail.com>

=end
#% manual settings, edit/update as required (note current default settings are obtained from sisu version yml file)
begin
  require 'thor'
rescue LoadError
  puts 'thor (package ruby-thor) not found'
end
begin
  require './setup/sisu_version'   # ./setup/sisu_version.rb
    include SiSUversion
rescue LoadError
  puts 'this does not appear to be a SiSU development directory'
  exit
end
require_relative 'setup/qi_libs'        # setup/qi_libs.rb
require 'find'
require 'fileutils'
  include FileUtils
require 'pathname'
require 'rbconfig.rb'
require 'yaml'
module SiSUconf
  class Configure < Thor
    class_option :verbose, :type => :boolean
    desc 'setup --all --bin --lib --conf --data --alt --dryrun',
      'setup sisu'
    options \
      :all => :boolean,
      :bin => :boolean,
      :lib => :boolean,
      :conf => :boolean,
      :data => :boolean,
      :share => :boolean,
      :man => :boolean,
      :vim => :boolean,
      :alt => :boolean,
      :dryrun => :boolean,
      :is => :boolean
    def setup
      unless options.length >= 1 \
      and not (options[:bin] \
      or options[:lib] \
      or options[:conf] \
      or options[:data] \
      or options[:share] \
      or options[:man] \
      or options[:vim])
        puts 'setup --all --bin --lib --conf --data --share --man --vim'
      end
      act=(options[:dryrun]) ? (:dryrun) : (:action)
      if options[:is]
        puts Version_info.version_number_info_stable
      end
      if not options[:alt]
        if options[:all] \
        or options[:bin]
          exclude_files=['sisugem']
          Install.setup_find_create(
            'bin',
            Project_details.dir.bin,
            exclude_files,
            act
          ) if File.directory?('bin')
        end
        if options[:all] \
        or options[:lib]
          Install.setup_find_create(
            'lib',
            Project_details.dir.lib,
            act
          ) if File.directory?('lib')
        end
        if options[:all] \
        or options[:conf]
          Install.setup_find_create(
            'conf',
            Project_details.dir.conf,
            act
          ) if File.directory?('conf')
        end
        if options[:all] \
        or options[:data]
          Install.setup_find_create(
            'data',
            Project_details.dir.data,
            act
          ) if File.directory?('data')
        end
        if options[:all] \
        or options[:share]
          Install.setup_find_create(
            'data/sisu',
            Project_details.dir.share,
            act
          ) if File.directory?('data/sisu')
        end
        if options[:all] \
        or options[:man]
          Install.setup_find_create(
            'man',
            Project_details.dir.man,
            act
          ) if File.directory?('man')
        end
        if options[:all] \
        or options[:vim]
          Install.setup_find_create(
            'data/vim',
            Project_details.dir.vim,
            act
          ) if File.directory?('data/vim')
        end
      else
        if options[:all] \
        or options[:bin]
          Install.setup_find_cp_r(
            'bin',
            Project_details.dir.bin,
            act
          ) if File.directory?('bin')
        end
        if options[:all] \
        or options[:bin]
          Install.setup_find_cp_r(
            'lib',
            Project_details.dir.lib,
            act
          ) if File.directory?('lib')
        end
        if options[:all] \
        or options[:conf]
          Install.setup_find_cp_r(
            'conf',
            Project_details.dir.conf,
            act
          ) if File.directory?('conf')
        end
        if options[:all] \
        or options[:data]
          Install.setup_find_cp_r(
            'data',
            Project_details.dir.data,
            act
          ) if File.directory?('data')
        end
        if options[:all] \
        or options[:share]
          Install.setup_find_cp_r(
            'data/sisu',
            Project_details.dir.share,
            act
          ) if File.directory?('data/sisu') #
        end
        if options[:all] \
        or options[:man]
          Install.setup_find_cp_r(
            'man',
            Project_details.dir.man,
            act
          ) if File.directory?('man')
        end
        #if options[:all] \
        #or options[:vim]
        #  Install.setup_find_cp_r('data/vim',"#{Project_details.dir.data}/vim") \
        #    if File.directory?('data/vim')
        #end
      end
    end
    desc 'pkg',
      'package maintenance tasks, ' \
       + 'of no general interest ' \
       + '(maintainer specific for package maintainer\'s convenience)'
    options \
      :open_version=> :boolean,
      :version_and_tag_for_release=> :boolean,
      :tip => :boolean,
      :is => :boolean
    def pkg
      if options[:is]
        puts Version_info.version_number_info_stable
      end
      if options[:tip]
        Package.sequence
      end
      if options[:open_version]
        Version_info::Update.update_documentation
        Version_info::Update.update_stable(:pre_release)
        Version_info::Update.update_pkgbuild_stable(:pre_release)
        Version_info::Update.changelog_header_stable_pre_release
        Version_info::Update.changelog_header_commit(:pre_release)
      end
      if options[:version_and_tag_for_release]
        Version_info::Update.update_documentation
        Version_info::Update.update_stable(:release)
        Version_info::Update.update_pkgbuild_stable(:release)
        Version_info::Update.changelog_header_stable
        Version_info::Update.changelog_header_commit_tag_upstream(:release)
      end
      if options.length == 0
        system("#{$called_as} help pkg")
        system("#{$called_as} pkg --tip")
      end
    end
    desc 'gem --create --build --install',
      'gem create build and install'
    options \
      :create => :boolean,
      :build => :boolean,
      :install => :boolean,
      :git_version_number => :boolean,
      :is => :boolean
    def gem
      if options[:is]
        puts Version_info.version_number_info_stable
      end
      if options[:create]
        version=(options[:git_version_number]) \
        ? :version_git
        : :version_standard
        Gemspecs::Current.create_stable(version)
        puts 'created gemspec' \
          if options[:verbose]
      end
      if options[:build]
        Gemspecs::Current.build_stable
        puts 'built gem' \
          if options[:verbose]
      end
      if options[:install]
        version=(options[:git_version_number]) \
        ? :version_git
        : :version_standard
        Gemspecs::Current.install_stable(version)
        puts 'installed gem, version: stable' \
          if options[:verbose]
      end
      unless options.length > 0
        system("#{$called_as} help gem")
      end
    end
  end
end
begin
  $called_as,$argv=$0,$*
  SiSUconf::Configure.start(ARGV)
rescue
end
__END__
#+END_SRC

** qi_lib

#+HEADER: :tangle ../setup/qi_libs.rb
#+BEGIN_SRC ruby
require_relative 'sisu_version'
module Project_details
  include SiSUversion
  def self.name
    'SiSU'
  end
  def self.summary
    'documents - structuring, publishing in multiple formats & search'
  end
  def self.description
    'documents - structuring, publishing in multiple formats & search'
  end
  def self.homepage
    'https://www.sisudoc.org'
  end
  def self.thor
    "ruby-thor files for the installation/setup of #{name}"
  end
  def self.platform_notice
    "[#{name} is for Linux/Unix Platforms]"
  end
  def self.env
    RbConfig::CONFIG
  end
  def self.host
    env['host']
  end
  def self.dir
    def self.proj
      Project_details.name.downcase
    end
    def self.arch
      env['archdir']
    end
    def self.sitearch
      env['sitearchdir']
    end
    def self.bin
      env['bindir']
    end
    def self.lib
      env['sitelibdir']
    end
    def self.data
      env['datadir']
    end
    def self.share
      "#{env['datadir']}/sisu"
    end
    def self.conf
      env['sysconfdir']
    end
    def self.man
      env['mandir']
    end
    def self.vim
      "#{env['datadir']}/sisu/vim"
    end
    def self.out
      "#{env['localstatedir']}/#{proj}"
    end
    def self.rubylib
      env['LIBRUBYARG_SHARED']
    end
    def self.pwd
      Dir.pwd #ENV['PWD']
    end
    self
  end
  def self.version
    stamp={}
    v="#{dir.pwd}/data/sisu/version.yml"
    if File.exist?(v)
      stamp=YAML::load(File::open(v))
      stamp[:version]
    else ''
    end
  end
  def self.system_info
    ##{Project_details.platform_notice}
    puts <<-WOK
  Host
    host:             #{Project_details.host}
    arch:             #{Project_details.dir.arch}
    sitearch:         #{Project_details.dir.sitearch}
  Directories for installation
    bin:                                          #{Project_details.dir.bin}
    lib (site-ruby):                              #{Project_details.dir.lib}/#{Project_details.dir.proj}/v*
    conf [etc]:                                   #{Project_details.dir.conf}/#{Project_details.dir.proj}
    data (odf, shared images):                    #{Project_details.dir.share}
    vim  (vim syntax, highlighting, ftplugin):    #{Project_details.dir.data}/sisu/vim
    data (README, version_manifest):              #{Project_details.dir.data}/doc/#{Project_details.dir.proj}
    man (manual pages):                           #{Project_details.dir.man}
    output:                                       #{Project_details.dir.out}
      processing:                                 #{Project_details.dir.out}/processing
      www:                                        #{Project_details.dir.out}/www
    rubylib:                                      #{Project_details.dir.rubylib}

    WOK
  end
  def self.gem_env
    system("gem env")
  end
end
module Utils
  def self.answer?(ask)
    resp='redo'
    print ask + " ['yes', 'no' or 'quit']: "
    resp=File.new('/dev/tty').gets.strip #resp=gets.strip
    if    resp == 'yes'        then true
    elsif resp == 'no'         then false
    elsif resp =~/^quit|exit$/ then exit
    else                       puts "[please type: 'yes', 'no' or 'quit']"
                               answer?(ask)
    end
  end
  def self.default_notice # local help not implemented description incorrect
    ans= %{#{Project_details.thor}
    Information on alternative actions is available using:
    [if ruby-thor is installed:]
      "#{$called_as} help")
    Default action selected - "install #{Project_details.name}" proceed? }
    resp=answer?(ans)
    exit unless resp
  end
  def self.chmod_file(place)
    if place =~/\/bin/; File.chmod(0755,place)
    else                File.chmod(0644,place)
    end
  end
  def self.chmod_util(place)
    if place =~/\/bin/; chmod(0755,place)
    else                chmod(0644,place)
    end
  end
  def self.system_date
    `date "+%Y-%m-%d"`.strip
  end
  def self.system_date_stamp
    `date "+%Yw%W/%u"`.strip
  end
  def self.program_found?(prog)
    found=`which #{prog}` #`whereis #{make}`
    (found =~/bin\/#{prog}\b/) ? :true : :false
  end
end
module Install
                                                           #%% using a directory and its mapping
  def self.setup_find_create(dir_get,dir_put,exclude_files=['\*'],act)               #primary,
    begin
      Find.find("#{Project_details.dir.pwd}/#{dir_get}") do |f|
        stub=f.scan(/#{Project_details.dir.pwd}\/#{dir_get}\/(\S+)/).join
        place="#{dir_put}/#{stub}"
        action=case
        when File.file?(f)
          unless f =~/#{exclude_files.join("|")}/
            unless act==:dryrun
              cp(f,place)
              Utils.chmod_file(place)
            end
            "->  #{dir_put}/"
          end
        when File.directory?(f)
          if not FileTest.directory?(place) \
          and not act==:dryrun
            FileUtils.mkpath(place)
          end
          "./#{dir_get}/"
        else '?'
        end
        puts "#{action}#{stub}"
      end
    rescue
      puts "\n\n[ are you root? required for install ]"
    end
  end
  def self.setup_find_cp_r(dir_get,dir_put,act)                                    #secondary, using recursive copy
    begin
      Find.find("#{Project_details.dir.pwd}/#{dir_get}") do |f|
        stub=f.scan(/#{Project_details.dir.pwd}\/#{dir_get}\/(\S+)/).join
        place="#{dir_put}/#{stub}"
        case
        when File.file?(f)
          unless act==:dryrun
            cp_r(f,place)
            Utils.chmod_util(place)
          else
            puts "--> #{place}"
          end
        when File.directory?(f)
          unless FileTest.directory?(place)
            unless act==:dryrun
              mkdir(place)
            else
              puts "mkdir -p #{place}"
            end
          end
        end
      end
    rescue
      puts "\n\n[ are you root? required for install ]"
    end
  end
end
module Version_info
  def self.contents(vi,rel=:release)
    release=rel ==:pre_release \
    ? '_pre_rel'
    : ''
    <<-WOK
---
:project: #{vi[:project]}
:version: #{vi[:version]}#{release}
:date_stamp: #{vi[:date_stamp]}
:date: "#{vi[:date]}"
    WOK
  end
  def self.git_version_extract
    if FileTest.file?('/usr/bin/git')
      x=`git describe --long --tags 2>&1`.strip.
        gsub(/^[a-z_-]*([0-9.]+)/,'\1').
        gsub(/([^-]*-g)/,'r\1').
        gsub(/-/,'.')
      x=(x=~/^[0-9]+\.[0-9]+\.[0-9]+\.r[0-9]+\.g[0-9a-f]{7}/) \
      ? x
      : nil
    else nil
    end
  end
  def self.version_number(vi)
    vi[:version]
  end
  def self.version_number_use(vi)
    (git_version_extract.nil?) \
    ? (vi[:version])
    : git_version_extract
  end
  def self.version_number_info(vi)
    (Version_info.version_number_use(vi) != vi[:version_number]) \
    ? (%{#{vi[:version_number]} from git #{Version_info.version_number_use(vi)}})
    : vi[:version_number]
  end
  def self.version_number_info_stable
    vi=Version_info::Current.setting_stable
    (Version_info.version_number_use(vi) != vi[:version_number]) \
    ? (%{#{vi[:version_number]} from git #{Version_info.version_number_use(vi)}})
    : vi[:version_number]
  end
  module Current
    def self.yml_file_path
      'data/sisu/version.yml'
    end
    def self.settings(file)
      v="#{Dir.pwd}/#{file}"
      if File.exist?(v)
        YAML::load(File::open(v))
      else ''
      end
    end
    def self.changelog_file_stable
      'data/doc/sisu/CHANGELOG_v7'
    end
    def self.file_stable
      yml_file_path
    end
    def self.setting_stable
      hsh=settings(file_stable)
      hsh[:version_number]=/([0-9]+\.[0-9]+\.[0-9]+)/.
        match(hsh[:version])[1]
      hsh
    end
    def self.version_number
      Version_info::Current.setting_stable[:version_number]
    end
    def self.content_stable
      Version_info.contents(setting_stable)
    end
  end
  module Next
    def self.settings(v)
      {
        project:        "#{Project_details.name}",
        version:        "#{v}",
        date:           "#{Utils.system_date}",
        date_stamp:     "#{Utils.system_date_stamp}",
      }
    end
    def self.setting_stable
      settings(SiSU_version)
    end
    def self.content_stable(rel)
      Version_info.contents(setting_stable,rel)
    end
  end
  module Update
    def self.version_number(vi)
      /([0-9]+\.[0-9]+\.[0-9]+)/.match(vi[:version])[1]
    end
    def self.version_number_stable
      vi=Version_info::Current.setting_stable
      /([0-9]+\.[0-9]+\.[0-9]+)/.match(vi[:version])[1]
    end
    def self.version_info_update_commit(filename,vi_hash_current,vi_content_current,vi_hash_next,vi_content_next)
      ans=%{update #{Project_details.name.downcase} version info replacing:
  #{vi_hash_current.sort}
with:
  #{vi_hash_next.sort}

#{vi_content_current}
becoming:
#{vi_content_next}
proceed? }
      resp=Utils.answer?(ans)
      if resp
        fn="#{Dir.pwd}/#{filename}"
        if File.writable?("#{Dir.pwd}/.")
          file_version=File.new(fn,'w+')
          file_version << vi_content_next
          file_version.close
        else
          puts %{*WARN* is the file or directory writable? could not create #{filename}}
        end
      end
    end
    def self.update_documentation
      fn="#{Dir.pwd}/data/doc/sisu/markup-samples/manual/_sisu/sisu_document_make"
      if File.file?(fn) \
      and File.writable?(fn)
        ver_no_stable=Version_info::Current.setting_stable[:version_number]
        debian_stable='Jessie'
        debian_testing='Stretch'
        sisu_doc_make = IO.readlines(fn)
        sisu_doc_make_next=sisu_doc_make.each.map do |line|
          line=line.gsub(/(\/$\{sisu_stable\}\/,)'[0-9]+\.[0-9]+\.[0-9]+'/,"\\1'#{ver_no_stable}'").
            gsub(/(\/$\{debian_stable\}\/,)'\*\{[A-Z][a-z]+\}\*'/,
              "\\1'*{#{debian_stable}}*'").
            gsub(/(\/$\{debian_testing\}\/,)'\*\{[A-Z][a-z]+\}\*'/,
              "\\1'*{#{debian_testing}}*'")
          line
        end
        if sisu_doc_make_next.length == sisu_doc_make.length
          sisu_doc_make_file=File.new(fn,'w+')
          sisu_doc_make_next.flatten.each do |line|
            sisu_doc_make_file << line
          end
          sisu_doc_make_file.close
        else puts "expected changelog arrays to have same length, in: #{pkgbuild.length}, out: #{pkgbuild_next.length}"
        end
      end
    end
    def self.update_stable(rel=:release)
      version_info_update_commit(
        Version_info::Current.file_stable,
        Version_info::Current.setting_stable,
        Version_info::Current.content_stable,
        Version_info::Next.setting_stable,
        Version_info::Next.content_stable(rel),
      )
    end
    def self.update_pkgbuild_stable(rel=:release)
      vn=version_number_stable
      ans=%{update PKGBUILD version info:
pkgver=#{vn}

proceed? }
      resp=Utils.answer?(ans)
      if resp
        filename='PKGBUILD_tar_xz'
        fn="#{Dir.pwd}/setup/#{filename}"
        if File.writable?(fn)
          pkgbuild = IO.readlines(fn)
          pkgbuild_next=pkgbuild.each.map do |line|
            if line =~/^\s*pkgver=/
              line=line.gsub(/^\s*(pkgver=)[0-9.]+/,"\\1#{vn}")
            else line
            end
          end
          if pkgbuild.length == pkgbuild_next.length
            pkgbuild_file=File.new(fn,'w+')
            pkgbuild_next.flatten.each do |line|
              pkgbuild_file << line
            end
            pkgbuild_file.close
          else puts "expected changelog arrays to have same length, in: #{pkgbuild.length}, out: #{pkgbuild_next.length}"
          end
        end
      end
    end
    def self.changelog_header(vi)
      vn=version_number(vi)
      <<-WOK
- sisu_#{vn}.orig.tar.xz (#{vi[:date]}:#{vi[:date_stamp].gsub(/20\d\dw/,'')})
  https://git.sisudoc.org/projects/sisu/tag/?h=sisu_#{vn}
      WOK
    end
    def self.changelog_header_release(filename,ch,vi)
      ans=%{update #{Project_details.name.downcase} changelog header, open version:

  #{ch}
proceed? }
      resp=Utils.answer?(ans)
      if resp
        fn="#{Dir.pwd}/#{filename}"
        if File.writable?(fn)
          changelog_arr_current = IO.readlines(fn)
          changelog_arr_next=changelog_arr_current.each.map do |line|
            if line =~/^\*\s+sisu_[0-9]+\.[0-9]+\.[0-9]+(?:_pre_rel)?\.orig\.tar\.xz \(Open commit window: [0-9]{4}-[0-9]{2}-[0-9]{2}; Pre-Release\)$/
              "* sisu_#{vi[:version]}.orig.tar.xz " \
              + "(#{vi[:date]}:#{vi[:date_stamp].gsub(/20\d\dw/,'')})\n"
            else line
            end
          end
          if changelog_arr_current.length == changelog_arr_next.length
            changelog_file=File.new(fn,'w+')
            changelog_arr_next.flatten.each do |line|
              changelog_file << line
            end
            changelog_file.close
          else puts "expected changelog arrays to have same length, in: #{changelog_arr_current.length}, out: #{changelog_arr_next.length}"
          end
        else
          puts %{*WARN* is the file or directory writable? could not create #{filename}}
        end
      end
    end
    def self.changelog_header_stable_filename
      Version_info::Current.changelog_file_stable
    end
    def self.changelog_header_stable
      ch=changelog_header(Version_info::Current.setting_stable)
      changelog_header_release(
        changelog_header_stable_filename,
        ch,
        Version_info::Current.setting_stable
      )
    end
    def self.changelog_header_pre_release(vi)
      vn=version_number(vi)
      <<-WOK
- sisu_#{vn}.orig.tar.xz (Open commit window: #{vi[:date]}; Pre-Release)
  https://git.sisudoc.org/projects/sisu/tag/?h=sisu_#{vn}
      WOK
    end
    def self.changelog_header_pre_release_write(filename,ch)
      ans=%{update #{Project_details.name.downcase} changelog header, open version:

  #{ch}
proceed? }
      resp=Utils.answer?(ans)
      if resp
        fn="#{Dir.pwd}/#{filename}"
        if File.writable?(fn)
          changelog_arr_current = IO.readlines(fn)
          changelog_arr_next=changelog_arr_current.each.map do |line|
            if line =~/^--- HEAD ---$/
              line << ("\n" + ch)
            else line
            end
          end
          if changelog_arr_current.length == changelog_arr_next.length
            changelog_file=File.new(fn,'w+')
            changelog_arr_next.flatten.each do |line|
              changelog_file << line
            end
            changelog_file.close
          else puts "expected changelog arrays to have same length, in: #{changelog_arr_current.length}, out: #{changelog_arr_next.length}"
          end
        else
          puts %{*WARN* is the file or directory writable? could not create #{filename}}
        end
      end
    end
    def self.changelog_header_stable_pre_release
      ch=changelog_header_pre_release(Version_info::Current.setting_stable)
      changelog_header_pre_release_write(changelog_header_stable_filename,ch)
    end
    def self.commit_changelog(rel=:release,msg)
      system(%{
        git commit -a -m"#{msg}"
        git commit --amend
      })
    end
    def self.tag_upstream
      system(%{
        git tag -af sisu_#{SiSU_version} -m"SiSU #{SiSU_version}"
      })
    end
    def self.changelog_header_commit(rel=:release)
      msg=(rel == :pre_release) \
      ? "version & changelog, open commit window"
      : "version & changelog, tag for release"
      ans=%{commit #{msg}:\n\nproceed? }
      resp=Utils.answer?(ans)
      if resp
        commit_changelog(rel,msg)
      end
    end
    def self.changelog_header_commit_tag_upstream(rel=:release)
      msg=(rel == :pre_release) \
      ? "version & changelog, open commit window"
      : "version & changelog, tag for release"
      ans=%{commit #{msg}:\n\nproceed? }
      resp=Utils.answer?(ans)
      if resp
        commit_changelog(rel,msg)
        tag_upstream
      end
    end
  end
  self
end
module GitExtractTaggedVersionBuild
  def upstream
    system(%{ git checkout upstream })
  end
  def self.git_tagged_versions(tag=nil)
    if tag
      v=if  tag =~/sisu_[0-9](?:\.[0-9]){0,2}$/ then tag
      elsif tag =~/^[0-9](?:\.[0-9]){0,2}$/     then 'sisu_' + tag
      else                                           'sisu_'
      end
      system(%{ git tag -l | ag --nocolor '^#{v}' })
    end
  end
  def self.git_checkout_and_build_and_install_version(tag,options)
    begin
      ver=if tag =~/sisu_[0-9]\.[0-9]+\.[0-9]+/ then tag
      elsif  tag =~/^[0-9]\.[0-9]+\.[0-9]+/     then 'sisu_' + tag
      else                                           branch
      end
      create=options[:create] ? '--create ' : ''
      build=options[:build] ? '--build ' : ''
      install=options[:install] ? '--install ' : ''
      commands =<<-WOK
        git checkout #{ver} &&
        #{$called_as} gem #{ver} #{create}#{build}#{install};
      WOK
      puts commands
      begin
        system(commands)
      rescue
      end
    rescue
    ensure
      system(%{
        git checkout upstream
      })
    end
  end
end
module Gemspecs
  def self.info(vi)
    puts <<-WOK
--
name:       #{vi[:project].downcase}
version:    #{vi[:version_number]}
date:       #{vi[:date]}
summary:    #{vi[:project]}
    WOK
  end
  def self.contents(vi)
    <<-WOK
Gem::Specification.new do |s|
  s.name           = '#{vi[:project].downcase}'
  s.version        = '#{vi[:version_number]}'
  s.date           = '#{vi[:date]}'
  s.summary        = '#{Project_details.summary} (linux calls)'
  s.description    = '#{Project_details.description} [#{Version_info.version_number_info(vi)}] (linux calls & without external dependencies)'
  s.homepage       = '#{Project_details.homepage}'
  s.authors        = ["Ralph Amissah"]
  s.email          = 'ralph.amissah@gmail.com'
  s.license        = 'GPL-3.0-or-later'
  s.files          = Dir['lib/#{Project_details.name.downcase}.rb'] +
                     Dir['lib/#{Project_details.name.downcase}/*.rb'] +
                     Dir['data/#{Project_details.name.downcase}/version.yml'] +
                     Dir['data/#{Project_details.name.downcase}/image/*'] +
                     Dir['bin/#{Project_details.name.downcase}gem'] +
                     Dir['bin/#{Project_details.name.downcase}']
  s.executables << '#{Project_details.name.downcase}gem' << '#{Project_details.name.downcase}'
end
    WOK
  end
  def self.contents_git(vi)
    <<-WOK
Gem::Specification.new do |s|
  s.name           = '#{vi[:project].downcase}'
  s.version        = '#{Version_info.version_number_use(vi)}'
  s.date           = '#{vi[:date]}'
  s.summary        = '#{Project_details.summary} (linux calls)'
  s.description    = '#{Project_details.description} [#{Version_info.version_number_info(vi)}] (linux calls & without external dependencies)'
  s.homepage       = '#{Project_details.homepage}'
  s.authors        = ["Ralph Amissah"]
  s.email          = 'ralph.amissah@gmail.com'
  s.license        = 'GPL-3.0-or-later'
  s.files          = `git ls-files -z lib`.split("\x0") +
                     Dir['data/#{Project_details.name.downcase}/version.yml'] +
                     Dir['data/#{Project_details.name.downcase}/image/*'] +
                     Dir['bin/#{Project_details.name.downcase}gem'] +
                     Dir['bin/#{Project_details.name.downcase}']
  s.executables << '#{Project_details.name.downcase}gem' << '#{Project_details.name.downcase}'
end
    WOK
  end
  def self.create(filename,gemspec)
    fn="#{Dir.pwd}/#{filename}.gemspec"
    if File.writable?("#{Dir.pwd}/.")
      file_sisu_gemspec=File.new(fn,'w+')
      file_sisu_gemspec << gemspec
      file_sisu_gemspec.close
    else
      puts %{*WARN* is the file or directory writable? could not create #{filename}}
    end
  end
  def self.build(fn)
    system(%{ gem build #{fn}.gemspec })
  end
  def self.install(vn)
    system(%{
      sudo gem install --local --no-document --verbose sisu-#{vn}.gem
    })
  end
  module Current
    def self.filename
      Project_details.name.downcase
    end
    def self.filename_stable
      Project_details.name.downcase \
      + '-' \
      + Version_info::Current.setting_stable[:version_number]
    end
    def self.info_stable
      Gemspecs.info(Version_info::Current.setting_stable)
    end
    def self.current_stable
      Gemspecs.contents(
        Version_info::Current.setting_stable,
      )
    end
    def self.current_git_version
      Gemspecs.contents_git(
        Version_info::Current.setting_stable,
      )
    end
    def self.create_stable(version=:version_standard)
      (version==:version_git) \
      ? (Gemspecs.create(filename,current_git_version))
      : (Gemspecs.create(filename,current_stable))
    end
    def self.build_stable
      Gemspecs.build(filename)
    end
    def self.install_stable(version=:version_standard)
      vi=Version_info::Current.setting_stable
      vn=((version==:version_git) \
      && (Version_info.version_number_use(vi) != vi[:version_number])) \
      ? (Version_info.version_number_use(vi))
      : (vi[:version_number])
      Gemspecs.install(vn)
    end
  end
end
module Package
  def self.sequence
    puts <<-WOK
  --open-version                # update package version
  --version-and-tag-for-release # git tags upstream version
  # not included:
  # --merge                     # git merge upstream tag into debian/sid
  # --dch                       # dch create and edit
  # --dch-commit                # dch commit
  # --build                     # git-buildpackage
  # --git_push                  # git push changes
  # --dput                      # dput package
  # --reprepro_update           # reprepro update
  # --reprepro_push             # reprepro rsync changes
    WOK
  end
end
__END__
#+END_SRC

* sisu thor lib

#+HEADER: :tangle ../lib/sisu/sisu_thor_lib.rb
#+BEGIN_SRC ruby
#<<sisu_document_header>>
module SiSU_Po4a_Actions
  require_relative 'utils_response'                   # utils_response.rb
  include SiSU_Response
  @@source=@@targets=nil
  def project_details
    def name
      'SiSU translations under po4a management'
    end
    def name_warning
      <<-WOK
#{name}

WARNING all sisu markup files (.ssm, .sst, .ssi) in languages other than #{language.source_language_selected}
are managed by po4a, through translations of the source language to other languages.

#{language.info_on_selection}
      WOK
    end
    def setup_project
      "Setup file for placing #{name}"
    end
    self
  end
  def notice
    def warn_and_proceed?
      '*WARNING* this software module creates, destroys, overwrites directories' + "\n" \
      + '*WARNING*: Use this Software at your own risk!'
    end
    def default(selection=nil)
      selections=:strict #selections=:short
      ans=if selection
        case selection
        when selection.is_a?(String)
          selections=:strict
          <<-WOK
  #{project_details.setup_project}
    Default action selected - "#{selection} #{project_details.name}"
#{warn_and_proceed?}
          WOK
        when :make
          selections=:strict
          <<-WOK
  #{project_details.setup_project}
    "--#{selection}" selected - #{selection} #{project_details.name}
    selected (or configured) languages to be used
      source language: #{language.source_language_available_str}
      target languages: #{language.translation_languages_selected_that_are_available.inspect}

    WARNING: this action assumes (and places) this project is under po4a
    (translation) management. It will create sub-directories for the
    selected (or configured) target languages:
      #{language.translation_languages_selected_that_are_available.inspect}
    & the po4a configuration file: #{filename.po4a_cfg}
    in the current directory:
      #{Dir.pwd}
    It will populate the sub-directories with translation files created from
    the pot and po files found under the corresponding language
    sub-directories, (under #{dir.pot}/ & #{dir.po}/).
    (OVERWRITING any existing translated .ssm .sst .ssi files
    in language subdirectories that are not under po4a management).

    You should backup the current directory:
      #{Dir.pwd}

#{warn_and_proceed?}
          WOK
        when :clean
          selections=:strict
          <<-WOK
  #{project_details.setup_project}
    "--#{selection}" selected - #{selection} #{project_details.name}
#{warn_and_proceed?}
          WOK
        when :distclean
          selections=:strict
          <<-WOK
  #{project_details.setup_project}
    "--#{selection}" selected - #{selection} #{project_details.name}
    WARNING: this action assumes (and places) this project is under po4a
    (translation) management. It will remove the sub-directories (if they exist):
      #{language.possible_translations.inspect}

      #{language.translation_languages_selected_that_are_available.inspect}
    & file: #{filename.po4a_cfg}
    in the current directory:
      #{Dir.pwd}
    Note: these sub-directories & the config file #{filename.po4a_cfg}
    should be auto-generated from pot and po files if this project translation
    is under po4a management.
    This query is to give you the chance to make sure you know what you are doing.
#{warn_and_proceed?}
          WOK
        when :rebuild
          selections=:strict
          <<-WOK
  #{project_details.setup_project}
    "--#{selection}" selected - #{selection} #{project_details.name}
    WARNING: this action assumes (and places) this project is under po4a
    (translation) management. It will destroy/clobber and then create again the
    sub-directories:
      #{language.translation_languages_selected_that_are_available.inspect}
    populating them with translation files created from the pot and po files
    found under the corresponding language sub-directories in (#{dir.pot}/
    & #{dir.po}/).
    It will also generate the file: #{filename.po4a_cfg}
    These actions will be taken in the current directory:
      #{Dir.pwd}
    This query is to give you the chance to make sure you know what you are doing.
#{warn_and_proceed?}
          WOK
        else
          selections=:strict
          <<-WOK
  #{project_details.setup_project}
    Default action selected - "#{selection} #{project_details.name}"
#{warn_and_proceed?}
          WOK
        end
      else
        selections=:strict
        <<-WOK
  #{project_details.setup_project}
    Default action selected - "install and to setup #{project_details.name}"
#{warn_and_proceed?}
        WOK
      end
      exit unless query.answer?(ans)
    end
    def project_help
      puts <<-WOK
#{project_details.name}
#{project_details.setup_project}

This setup file is primarily to assist with having sisu markup files under po4a
translation management. It assumes that the source language files are placed
under the sub-directory identifying the source language set, which is currently
#{language.source_language_selected}
The files there are used to make the source translation file in the directory #{dir.pot}/
Which is then used to create files for translation under the directory #{dir.po}/
in sub-directories bearing the translation languages ISO code.

The current language translation selection is:  #{translation_languages_selected_str}
The languages selected are located in the file: #{filename.languages_src_tgt}

sisu available language list: #{sisu_languages_available_str}

      WOK
    end
    self
  end
  def generate
    def readme
      system(%{ruby ../../../../../bin/sisu6 --txt -v --no-manifest --dump='../../../../../..' en/README.ssm})
    end
    def manpage
      system(%{ruby ../../../../../bin/sisu6 --manpage -v --no-manifest --dump='../../../../../../man/man1' en/sisu.ssm})
    end
    self
  end
  def filename
    def languages_src_tgt
      #'translation_languages'
      'languages_source_and_targets'
    end
    def po4a_cfg
      'po4a.cfg'
    end
    self
  end
  def dir
    def pwd
      Dir.pwd
    end
    def po4a_
      'po4a/' # ''
    end
    def pot
      po4a_ + 'pot'
    end
    def po
      po4a_ + 'po'
    end
    self
  end
  def dir_mk(dir)
    FileUtils::mkdir_p(dir) unless FileTest.directory?(dir)
  end
  def po4a_flags
    def debug
      '-d -v'
    end
    def normal
      ''
    end
    def quiet
      '-q'
    end
    self
  end
  def languages_from_file
    def language_source
      if @@source.is_a?(String) \
      and @@source =~ /w{2,4}/
      else languages_extract_from_file
      end
      @@source
    end
    def language_targets
      if @@targets.is_a?(Array) \
      and @@targets.length > 0
      else languages_extract_from_file
      end
      @@targets
    end
    def languages_extract_from_file
      if (@@source.is_a?(String) \
      and @@source =~/\w{2,4}/) \
      and (@@targets.is_a?(Array) \
      and @@targets.length > 0)
      else
        if FileTest.file?(filename.languages_src_tgt)
          puts 'file: "' + filename.languages_src_tgt + '" found and used (unless overridden)'
          langs=IO.read(filename.languages_src_tgt, mode: 'r:utf-8').scan(/source:\s+\w+|target:\s+\w.+/)
          langs.each do |sel|
            case sel
            when /source:/
              source=sel.split(/source:\s*|\s+/).join
              source=(source =~/\w{2,4}/) ? source : nil
              @@source=unless @@source.is_a?(String) \
              and @@source =~/\w{2,4}/
                source
              else @@source
              end
            when /target:/
              @@targets=unless @@targets.is_a?(Array)
                sel.split(/targets?:\s*|\s+/) - ['']
              else @@targets
              end
            end
          end
        else
          puts %{(create) missing instruction file: "#{filename.languages_src_tgt}"\n  contents e.g.:\n    source: en\n    target: de fr es ja ru zh\n  no po target languages found}
          exit
        end
      end
    end
    self
  end
  def language
    def source_language_selected(src=nil)
      @@source=if not @@source.nil? \
      and @@source.is_a?(String) \
      and @@source =~/\w{2,4}/
        @@source
      elsif (src \
      && src.is_a?(String) \
      && src.length > 1)
        src
      else
        src=languages_from_file.language_source
      end
    end
    def translation_languages_selected(targets=nil) #translation_languages
      @@targets=if not @@targets.nil? \
      and @@targets.is_a?(Array) \
      and @@targets.length > 0
        @@targets
      elsif (targets \
      && targets.is_a?(Array) \
      && targets.length > 0)
        targets
      else
        targets=languages_from_file.language_targets
      end
    end
    def source_language_available
      [source_language_selected] & sisu_languages_available
    end
    def translation_languages_selected_that_are_available
      translation_languages_selected & sisu_languages_available
    end
    def info_on_selection
      if translation_languages_selected != translation_languages_selected_that_are_available
        <<-WOK
WARNING: language selections mismatch

The current language translation selection appears to be: #{translation_languages_selected_str}
Of which the following are valid (available) selections:  #{translation_languages_selected_that_are_available_str}

sisu available language list: #{sisu_languages_available_str}

the following will be used: #{translation_languages_selected_that_are_available_str}
The languages selected are located in the file:    #{filename.languages_src_tgt}
        WOK
      else
        <<-WOK
The current language translation selection is:  #{translation_languages_selected_str}
The languages selected are located in the file: #{filename.languages_src_tgt}

sisu available language list: #{sisu_languages_available_str}
        WOK
      end
    end
    def sisu_languages_available
      $SiSU_Language_Codes.language_list.codes
    end
    def possible_translations
      sisu_languages_available -  [source_language_selected]
    end
    def translation_languages_selected_str
      language.translation_languages_selected.join(' ')
    end
    def source_language_available_str
      source_language_available.join
    end
    def translation_languages_selected_that_are_available_str
      language.translation_languages_selected_that_are_available.join(' ')
    end
    def sisu_languages_available_str
      language.sisu_languages_available.join(' ')
    end
    def posible_translations_str
      language.posible_translations.join(' ')
    end
    self
  end
  def files_src
    def ssm
      Dir.glob("#{language.source_language_selected}/*.ssm").sort
    end
    def sst
      Dir.glob("#{language.source_language_selected}/*.sst").sort
    end
    def ssi
      Dir.glob("#{language.source_language_selected}/*.ssi").sort
    end
    def all
      Dir.glob("#{language.source_language_selected}/*{.ssm,.sst,.ssi}").sort
    end
    self
  end
  def po4a_cfg_file
    File.open("#{Dir.pwd}/#{filename.po4a_cfg}",'w')
  end
  def po4a_create
    def configure #po4a_cfg
      po4a_cfg_arr=[]
      po4a_cfg_arr \
        << "[po4a_langs] #{language.translation_languages_selected_that_are_available_str}"
      po4a_cfg_arr \
        << "[po4a_paths] #{dir.pot}/$master.pot $lang:#{dir.po}/$lang/$master.po"
      files_src.ssm.each do |file_src|
        file_src_fn=file_src.gsub(/#{language.source_language_selected}\//,'')
        po4a_cfg_arr \
          << "[type: text] #{file_src} $lang:$lang/#{file_src_fn}"
      end
      files_src.sst.each do |file_src|
        file_src_fn=file_src.gsub(/#{language.source_language_selected}\//,'')
        po4a_cfg_arr \
          << "[type: text] #{file_src} $lang:$lang/#{file_src_fn}"
      end
      files_src.ssi.each do |file_src|
        file_src_fn=file_src.gsub(/#{language.source_language_selected}\//,'')
        po4a_cfg_arr \
          << "[type: text] #{file_src} $lang:$lang/#{file_src_fn}"
      end
      file=po4a_cfg_file
      po4a_cfg_arr.each do |txt|
      puts txt
        file << txt << "\n"
      end
      file.close
      cmd='po4a --keep 0 ' \
      + po4a_flags.normal + ' ' \
      + filename.po4a_cfg
      #cmd='po4a --keep 0 --no-backups --package-name ' \
      ,#+ 'sisu-manual' + ' ' \
      ,#+ po4a_flags.normal + ' ' \
      ,#+ filename.po4a_cfg
      system(cmd); puts cmd
    end
    self
  end
  def project
    def make
      dir_mk(dir.pot)
      language.translation_languages_selected_that_are_available.each do |lang_dir|
        dir_lang="#{Dir.pwd}/#{dir.po}/#{lang_dir}"
        dir_mk(dir_lang)
      end
      po4a_create.configure
    end
    def clean
      #rm -f po/*/*.po~
      #rm -rf ../build
      FileUtils.rm_f Dir.glob("./#{dir.po}/*/*.po~")
    end
    def distclean
      #rm -f po4a.cfg
      #rm -rf $(LANGUAGES)
      FileUtils::rm_f(filename.po4a_cfg)
      FileUtils::rm_r(language.possible_translations,:force => true)
    end
    self
  end
end
__END__
#+END_SRC

* Rake & Rant
** Rake & Rant

#+HEADER: :tangle ../setup/rbuild
#+HEADER: :shebang #!/usr/bin/env ruby
#+HEADER: :tangle-mode (identity #o755)
#+BEGIN_SRC ruby
=begin
 Common Rakefile, Rantfile installer for SiSU
   softlink Rakefile and Rantfile to this file

 - Homepage: <https://sisudoc.org>

 Copyright (C) 2007 Ralph Amissah

 - License: LGPL - GNU Lesser General Public License
     [same license as Rant provided within the Rant package]

 - Ralph Amissah <ralph.amissah@gmail.com>

 Rake is a Ruby build program by Jim Weirich
 - Rake may be downloaded and installed from:
     <https://rake.rubyforge.org/>

 Rant is a Ruby build program by Stefan Lang
 - Rant may be downloaded and installed from:
     <https://make.rubyforge.org/>

 Notes on use:
   [if rake is preferred and installed]
     rake -T
   [if rant is preferred and installed]
     rant -T

 SiSU can also be Setup/Installation using:
 * Minero Aoki's setup.rb, provided along with SiSU, or

=end
#%% produce a makefile suitable for the target platform
#require 'mkmf'
#create_makefile("sisu")
#% manual settings, edit/update as required (note current default settings are obtained from sisu version yml file)
require 'find'
require 'fileutils'
#require 'ftools'
require 'rbconfig.rb'
require 'yaml'
include FileUtils
require_relative 'sisu_version'                # sisu_version.rb
  include SiSUversion
require_relative 'rbuild_libs'                 # rbuild_libs.rb
  include Project_details
  include Utils
  include Version_info
  include Gemspecs
  include GitExtractTaggedVersionBuild
require_relative 'rbuild_help'                 # rbuild_help.rb
  include Help
#% tasks
desc "show rake/rant tasks for sisu install, and sisu gem (create spec, build &) install"
task :default =>
  [:note_sources,:tasks,:note_installation] #[:default_notice,:setup_base]
desc "Setup/Install #{Project_details.name}"
task :setup_project=>
  [:setup_bin_,:setup_lib_,:setup_conf_,:setup_share_,:setup_data_,:setup_man_,:setup_vim_,:src_note]
task :project=> \
  [:setup_project]
desc "Setup/Install #{Project_details.name}"
task :setup=>
  [:setup_bin_, :setup_lib_,:setup_conf_,:setup_share_,:setup_data_] #, :help]
desc "Setup/Install #{Project_details.name}: bin, lib and conf (no data)"
task :setup_base=>
  [:setup_bin_,:setup_lib_,:setup_conf_,:setup_share_,:setup_man_,:setup_vim_,:note_sources]
task :base=>
  [:setup_base]
desc "Setup/Install #{Project_details.name}: bin, lib, conf & data"
task :setup_with_data=>
  [:setup_base,:setup_data]
desc "check package version"
task :sisuversion =>
  [:sisu_version]
task :version =>
  [:sisu_version]
#desc "set package version"
task :sisuversionset =>
  [:sisu_version_set,:changelog_headers]
desc "check gemspec info"
task :gem_spec =>
  [:gemspec_info]
desc "create sisu v_stable gemspec"
task :gem_create_spec_stable =>
  [:gemspecs_stable_create_default_version]
task :gem5cs =>
  [:gem_create_spec_stable]
task :gem5createspecs =>
  [:gemspecs_stable_create_default_version]
desc "create gemspec"
task :gem_create_spec =>
  [:gemspecs_create_default_version]
task :gem_create =>
  [:gemspecs_create_default_version]
task :gemc =>
  [:gemspecs_create_default_version]
#---
desc "build gem"
task :gem_build =>
  [:gem_build_]
task :gemb =>
  [:gem_build]
task :gembuild =>
  [:gem_build]
desc "build sisu v_stable gem"
task :gem_build_stable =>
  [:gem_stable_build]
task :gem5b =>
  [:gem_build_stable]
task :gem5build =>
  [:gem_build_stable]
#---
desc "create, build & install sisu v_stable gem"
  task :gem_create_build_install_stable =>
    [:gemspecs_stable_create_default_version,:gem_stable_build,:gem_stable_install]
task :gem5cbi =>
  [:gem_create_build_install_stable]
desc "create, build & install sisu gem"
task :gem_create_build_install =>
  [:gemspecs_create_default_version,:gem_build_,:gem_install_]
task :gemcbi =>
  [:gem_create_build_install]
#---
desc "install gem"
task :gem_install =>
  [:gem_install_]
task :gemi =>
  [:gem_install]
task :geminstall =>
  [:gem_install]
desc "build & install sisu v_stable gem"
task :gem_build_install_stable =>
  [:gem_stable_build,:gem_install_]
task :gem5bi =>
  [:gem_build_install_stable]
desc "build & install gem"
task :gem_build_install =>
  [:gem_build,:gem_install_]
task :gembi =>
  [:gem_build_install]
#-- manually set next version
#desc "create sisu v_stable gemspec, manually set next version"
task :gem5csn =>
  [:gemspecs_stable_create_next_version]
#desc "create gemspec, manually set next version"
task :gemcsn =>
  [:gemspecs_create_next_version]
task :gemcn =>
  [:gemspecs_create_next_version]
#desc "build gem, manually set next version"
task :gembn =>
  [:gem_build_next_version]
#desc "build sisu v_stable gem, manually set next version"
task :gem5bn =>
  [:gem_stable_build_next_version]
#desc "install gem, manually set next version"
task :gemin =>
  [:gem_install_next_version]
#desc "build & install sisu v_stable gem, manually set next version"
task :gem5bin =>
  [:gem_stable_build_next_version,:gem_install_next_version]
#desc "build & install gem, manually set next version"
task :gembin =>
  [:gem_build_next_version,:gem_install_next_version]
#desc "create, build & install sisu v_stable gem, manually set next version"
task :gem5cbin =>
  [:gemspecs_stable_create_next_version,:gem_stable_build_next_version,:gem_stable_install_next_version]
#desc "create, build & install sisu gem, manually set next version"
task :gemcbin =>
  [:gemspecs_create_next_version,:gem_build_next_version,:gem_install_next_version]
#---
#desc "check changelog headers"
task :changelogheaders =>
  [:changelog_headers]
task :dev =>
  [:note_developer]
task :developer_note =>
  [:note_developer]
if File.directory?('bin')
  desc "Setup #{Project_details.name} bin only, synonym :bin"
  task :setup_bin =>
    [:setup_bin_]
  task :bin =>
    [:setup_bin]
end
if File.directory?('lib')
  desc "Setup #{Project_details.name} lib only, synonym :lib"
  task :setup_lib =>
    [:setup_lib_]
  task :lib =>
    [:setup_lib]
end
if File.directory?('conf')
  desc "Setup #{Project_details.name} conf only, synonyms :conf & :etc"
  task :setup_conf =>
    [:setup_conf_]
  task :conf =>
    [:setup_conf]
  task :setup_etc =>
    [:setup_conf]
  task :etc =>
    [:setup_conf]
end
if File.directory?('data')
  desc "Setup #{Project_details.name} data only, synonyms :data & :examples"
  task :setup_data =>
    [:setup_data_]
  task :data =>
    [:setup_data]
  task :setup_examples =>
    [:setup_data]
  task :examples =>
    [:setup_data]
end
if File.directory?('data/sisu')
  #desc "Setup #{Project_details.name} shared data only (odf & shared images)"
  task :setup_share =>
    [:setup_share_]
  task :share =>
    [:setup_share]
end
if File.directory?('man')
  desc "Setup #{Project_details.name} man pages only, synonyms :man"
  task :setup_man =>
    [:setup_man_]
  task :man =>
    [:setup_man]
end
if File.directory?('data/vim')
  desc "Setup #{Project_details.name} vim config files only, synonyms :vim"
  task :setup_vim =>
    [:setup_vim_]
  task :vim =>
    [:setup_vim]
end
desc "Remove #{Project_details.name} (all versions)"
task :remove_package =>
  [:remove_bin, :remove_lib, :remove_conf]
if File.directory?('bin')
  #desc "Remove #{Project_details.name} bin only"
  task :remove_bin =>
    [:remove_bin]
end
if File.directory?('lib')
  #desc "Remove #{Project_details.name} lib only"
  task :remove_lib =>
    [:remove_lib]
end
if File.directory?('conf')
  #desc "Remove #{Project_details.name} conf only"
  task :remove_conf =>
    [:remove_conf]
end
desc "Re-setup #{Project_details.name}, synonym :reinstall"
task :resetup =>
  [:remove, :setup]
task :reinstall =>
  [:remove, :setup]
#desc "Re-setup #{Project_details.name}: bin, lib, conf (ignore data), synonym :reinstall"
task :resetup_base =>
  [:remove, :setup_base_]
task :reinstall_base =>
  [:remove, :setup_base_]
if File.directory?('bin')
  #desc "Re-setup #{Project_details.name} bin, synonym :reinstall"
  task :resetup_bin =>
    [:remove_bin, :setup_bin_]
  task :reinstall_bin =>
    [:remove_bin, :setup_bin_]
end
if File.directory?('lib')
  #desc "Re-setup #{Project_details.name} lib, synonym :reinstall_lib"
  task :resetup_lib =>
    [:remove_lib, :setup_lib_]
  task :reinstall_lib =>
    [:remove_lib, :setup_lib_]
end
if File.directory?('conf')
  #desc "Re-setup #{Project_details.name} conf, synonyms :reinstall_conf & :resetup_etc"
  task :resetup_conf =>
    [:remove_conf, :setup_conf_]
  task :reinstall_conf =>
    [:remove_conf, :setup_conf_]
  task :resetup_etc =>
    [:remove_conf, :setup_conf_]
  task :reinstall_etc =>
    [:remove_conf, :setup_conf_]
end
if File.directory?('data/sisu')
  #desc "Re-setup #{Project_details.name} shared data, (odf & images)"
  task :resetup_share =>
    [:remove_share, :setup_share_]
  task :reinstall_share =>
    [:remove_share, :setup_share_]
end
if File.directory?('man')
  #desc "Re-setup #{Project_details.name} man, synonym :reinstall_man"
  task :resetup_man =>
    [:remove_man, :setup_man_]
  task :reinstall_man =>
    [:remove_man, :setup_man_]
end
desc 'Setup Note'
task :setup_note =>
  [:help]
desc "System information used by #{Project_details.name}"
task :system =>
  [:system_info,:project_help,:note_sources]
desc "show all system info available - parameters found"
task :system_param =>
  [:system_param_]
desc "Gem environment information used ruby gems for #{Project_details.name}"
task :gem_env =>
  [:gem_env_]
desc 'Help'
task :help =>
  [:project_help,:system_info,:tasks]
#desc "Setup/Install #{Project_details.name} (uses filelist)"
task :install =>
  [:default_notice,:project]
task :install_bin =>
  [:setup_bin_]
#desc "search for a version tag e.g. 'tag[5.6.0]'"
task :tag, [:tag] do |t, args|
  args.with_defaults(:tag => Version_info::Next.setting_stable[:version])
  puts "Check for Version Tag: #{args.tag}"
  print "Version Tag:           "
  GitExtractTaggedVersionBuild::git_tagged_versions(args)
end
#desc "build and install a specific git tagged version of sisu, e.g. 'build[5.6.0]'"
task :build, [:tag, :branch] => :done do |t, args|
  args.with_defaults(:tag => '5.6.0', :branch => 'stable')
  puts "Version Tag: #{args.tag}"
  puts "Branch: #{args.branch}"
  GitExtractTaggedVersionBuild::git_tagged_versions(args.tag)
  ans= <<-WOK
Gem Install SiSU Version
  WOK
  resp=Utils.answer?(ans)
  exit unless resp
  GitExtractTaggedVersionBuild::git_checkout_and_build_version(args)
end
task :done do
  puts 'done'
end
                                                           #%% setup/install tasks
task :rant_independence do                                 #notice
  resp=''
  while resp.length < 4
    resp='sisu-install'                                     #default name install
    print %{#{Project_details.rake_rant}
  Create a rant dependency independent file
  provide filename default name is "install"
    [Warning, will overwrite file of name provided
      provide name or "quit" to exit]: }
    exit if resp =~/^(?:n|quit|exit)$/
  end
  remove='y' #remove='n'
 if remove =~/y/
   system("rant-import --force --auto #{resp};
     chmod 755 #{resp}
   ")
 else #puts "#{resp} not replaced"
 end
end

task :default_notice do                                    #notice
  Utils.default_notice
end
task :default2 do                                     #secondary
  setup_find_cp_r('bin',Project_details.dir.bin) \
    if File.directory?('bin')
  setup_find_cp_r('lib',Project_details.dir.lib) \
    if File.directory?('lib')
  setup_find_cp_r('conf',Project_details.dir.conf) \
    if File.directory?('conf')
  setup_find_cp_r('data/sisu',Project_details.dir.share) \
    if File.directory?('data/sisu') #
  setup_find_cp_r('data',Project_details.dir.data) \
    if File.directory?('data')
  setup_find_cp_r('data/vim',"#{Project_details.dir.data}/vim") \
    if File.directory?('data/vim')
  setup_find_cp_r('man',Project_details.dir.man) \
    if File.directory?('man')
end
task :setup_bin_ do
  exclude_files=['sisugem']
  Install.setup_find_create('bin',Project_details.dir.bin,exclude_files) \
    if File.directory?('bin')
end
task :setup_lib_ do
  Install.setup_find_create('lib',Project_details.dir.lib) \
    if File.directory?('lib')
end
task :setup_conf_ do
  Install.setup_find_create('conf',Project_details.dir.conf) \
    if File.directory?('conf')
end
task :setup_share_ do
  Install.setup_find_create('data/sisu',Project_details.dir.share) \
    if File.directory?('data/sisu')
end
task :setup_data_ do
  Install.setup_find_create('data',Project_details.dir.data) \
    if File.directory?('data')
end
task :setup_man_ do
  Install.setup_find_create('man',Project_details.dir.man) \
    if File.directory?('man')
  Install.setup_find_create('man.deb/man',Project_details.dir.man) \
    if File.directory?('man.deb/man')
end
task :setup_vim_ do
  Install.setup_find_create('data/vim',Project_details.dir.vim) \
    if File.directory?('data/vim')
end
task :gemspec_info do
  Gemspecs.info_stable
end
task :gemspecs_stable_create_default_version do
  Gemspecs::Current.create_stable
end
task :gemspecs_create_default_version do
  Gemspecs::Current.create_stable
end
task :gemspecs_stable_create_next_version do
  Gemspecs::Next.create_stable
end
task :gemspecs_create_next_version do
  Gemspecs::Next.create_stable
end
task :gem_stable_build do
  Gemspecs::Current.build_stable
end
task :gem_build_ do
  Gemspecs::Current.build_stable
end
task :gem_stable_build_next_version do
  Gemspecs::Next.build_stable
end
task :gem_build_next_version do
  Gemspecs::Next.build_stable
end
task :gem_stable_install do
  Gemspecs::Current.install_stable
end
task :gem_install_ do
  Gemspecs::Current.install_stable
end
task :gem_stable_install_next_version do
  Gemspecs::Next.install_stable
end
task :gem_install_next_version do
  Gemspecs::Next.install_stable
end
task :changelog_headers do
  puts '---'
  puts Version_info::Update.changelog_header_stable
end
task :sisu_version do
  puts Version_info::Next.setting_stable
  puts '---'
  puts Version_info::Current.setting_stable[:project]
  puts Version_info::Current.setting_stable[:version]
  puts Version_info::Current.setting_stable[:date]
  puts Version_info::Current.setting_stable[:date_stamp]
end
task :sisu_version_set do
  Version_info::Update.update_stable
end
                                                           #%% post install
                                                           #%% clobber/remove tasks
task :remove_bin do
  rm_r "#{Project_details.dir.bin}/#{Project_details.dir.proj}" \
    if FileTest.file?("#{Project_details.dir.bin}/#{Project_details.dir.proj}")
end
task :remove_lib do
  rm_r "#{Project_details.dir.lib}/#{Project_details.dir.proj}" \
    if FileTest.directory?("#{Project_details.dir.lib}/#{Project_details.dir.proj}")
end
task :remove_conf do
  rm_r "#{Project_details.dir.conf}/#{Project_details.dir.proj}" \
    if FileTest.directory?("#{Project_details.dir.conf}/#{Project_details.dir.proj}")
end
task :remove_man do
  rm_r "#{Project_details.dir.man}/**/#{Project_details.dir.proj}" \
    if FileTest.directory?("#{Project_details.dir.man}/man1/#{Project_details.dir.proj}")
end
task :remove_version do
  rm_r "#{Project_details.dir.bin}/#{Project_details.dir.proj}" \
    if FileTest.file?("#{Project_details.dir.bin}/#{Project_details.dir.proj}")
  rm_r "#{Project_details.dir.lib}/#{Project_details.dir.proj}/#{Project_details.version}" \
    if FileTest.directory?("#{Project_details.dir.lib}/#{Project_details.dir.proj}/#{Project_details.version}")
  rm_r "#{Project_details.dir.conf}/#{Project_details.dir.proj} \
    if FileTest.directory?("#{Project_details.dir.conf}/#{Project_details.dir.proj}")
end
task :remove_package do
  rm_r "#{Project_details.dir.bin}/#{Project_details.dir.proj}" \
    if FileTest.file?("#{Project_details.dir.bin}/#{Project_details.dir.proj}")
  rm_r "#{Project_details.dir.lib}/#{Project_details.dir.proj}" \
    if FileTest.directory?("#{Project_details.dir.lib}/#{Project_details.dir.proj}")
  rm_r "#{Project_details.dir.conf}/#{Project_details.dir.proj}" \
    if FileTest.directory?("#{Project_details.dir.conf}/#{Project_details.dir.proj}")
end
task :note_sources do
  puts <<-WOK

  SiSU project:
      <https://sisudoc.org>
  sisu source code is available at:
      <https://git.sisudoc.org>
      <https://git.sisudoc.org/projects/sisu>
  sisu markup samples are provided/packaged separately as sisu-markup-samples:
      <https://git.sisudoc.org/projects/sisu-markup>
  WOK
end
task :note_installation do
  puts <<-WOK
  alternative 0: distribution install, rather than this Rakefile
    a distribution install pulls in the many dependencies used by sisu after
    initial processing to generate and store output, significant amongst these are
    XeTeX & databases (sqlite3 and postgresql)

  alternative 1: gem install, you need to:
    create the gemspec; build the gem (from the gemspec); install the gem
  which can be done with the single command:
    rake gem_create_build_install   # (to build and install sisu v5 & sisu v6, alias gemcbi)
  separate gems are made/installed for sisu v5 & sisu v6 contained in source:
    rake gem_create_build_install_stable   # (to build and install sisu v5, alias gem5cbi)
  for individual steps (create, build, install) see rake options, rake -T
  to specify sisu version for sisu installed via gem
    sisu _#{Version_info::Current.setting_stable[:version]}_ --version
  to uninstall sisu installed via gem
    sudo gem uninstall --verbose sisu
  WOK
end
task :note_developer do
  puts <<-WOK

  changelogheaders

  sisuversion
  sisuversionset

  gemcsn gem5csn gem6csn
  gembn gem5bn gem6bn
  gemin gem5in gem6in
  gembin gem5bin gem6bin
  gemcbin gem5cbin gem6cbin
  WOK
end
                                                           #%% help & system info
task :system_info do
  Project_details.system_info
end
task :system_param_ do
  Project_details.env.each {|c| puts c.inspect }
end
task :gem_env_ do
  Project_details.gem_env
end
task :project_help do
  Help.project_help
end
task :tasks do
  Help.tasks
end
#+END_SRC

** Rake & Rant libs

#+HEADER: :tangle ../setup/rbuild_libs.rb
#+BEGIN_SRC ruby
module Project_details
  require_relative 'sisu_version'
  include SiSUversion
  def self.name
    'SiSU'
  end
  def self.thor
    "ruby-thor files for the installation/setup of #{name}"
  end
  def self.platform_notice
    "[#{name} is for Linux/Unix Platforms]"
  end
  def self.env
    RbConfig::CONFIG
  end
  def self.host
    env['host']
  end
  def self.dir
    def self.proj
      Project_details.name.downcase
    end
    def self.arch
      env['archdir']
    end
    def self.sitearch
      env['sitearchdir']
    end
    def self.bin
      env['bindir']
    end
    def self.lib
      env['sitelibdir']
    end
    def self.data
      env['datadir']
    end
    def self.share
      "#{env['datadir']}/sisu"
    end
    def self.conf
      env['sysconfdir']
    end
    def self.man
      env['mandir']
    end
    def self.vim
      "#{env['datadir']}/sisu/vim"
    end
    def self.out
      "#{env['localstatedir']}/#{proj}"
    end
    def self.rubylib
      env['LIBRUBYARG_SHARED']
    end
    def self.pwd
      Dir.pwd #ENV['PWD']
    end
    self
  end
  def self.version
    stamp={}
    v="#{dir.pwd}/data/sisu/version.yml"
    if File.exist?(v)
      stamp=YAML::load(File::open(v))
      stamp[:version]
    else ''
    end
  end
  def self.system_info
    ##{Project_details.platform_notice}
    puts <<-WOK
  Host
    host:             #{Project_details.host}
    arch:             #{Project_details.dir.arch}
    sitearch:         #{Project_details.dir.sitearch}
  Directories for installation
    bin:                                          #{Project_details.dir.bin}
    lib (site-ruby):                              #{Project_details.dir.lib}/#{Project_details.dir.proj}/v*
    conf [etc]:                                   #{Project_details.dir.conf}/#{Project_details.dir.proj}
    data (odf, shared images):                    #{Project_details.dir.share}
    vim  (vim syntax, highlighting, ftplugin):    #{Project_details.dir.data}/sisu/vim
    data (README, version_manifest):              #{Project_details.dir.data}/doc/#{Project_details.dir.proj}
    man (manual pages):                           #{Project_details.dir.man}
    output:                                       #{Project_details.dir.out}
      processing:                                 #{Project_details.dir.out}/processing
      www:                                        #{Project_details.dir.out}/www
    rubylib:                                      #{Project_details.dir.rubylib}

    WOK
  end
  def self.gem_env
    system("gem env")
  end
end
module Utils
  def self.answer?(ask)
    resp='redo'
    print ask + " ['yes', 'no' or 'quit']: "
    resp=File.new('/dev/tty').gets.strip #resp=gets.strip
    if    resp == 'yes'        then true
    elsif resp == 'no'         then false
    elsif resp =~/^quit|exit$/ then exit
    else                       puts "[please type: 'yes', 'no' or 'quit']"
                               answer?(ask)
    end
  end
  def self.default_notice # local help not implemented description incorrect
    ans= %{#{Project_details.thor}
    Information on alternative actions is available using:
    [if ruby-thor is installed:]
      "rake help")
    Default action selected - "install #{Project_details.name}" proceed? }
    resp=answer?(ans)
    exit unless resp
  end
  def self.chmod_file(place)
    if place =~/\/bin/; File.chmod(0755,place)
    else                File.chmod(0644,place)
    end
  end
  def self.chmod_util(place)
    if place =~/\/bin/; chmod(0755,place)
    else                chmod(0644,place)
    end
  end
  def self.system_date
    `date "+%Y-%m-%d"`.strip
  end
  def self.system_date_stamp
    `date "+%Yw%W/%u"`.strip
  end
  def self.program_found?(prog)
    found=`which #{prog}` #`whereis #{make}`
    (found =~/bin\/#{prog}\b/) ? :true : :false
  end
end
module Install
                                                           #%% using a directory and its mapping
  def self.setup_find_create(dir_get,dir_put,exclude_files=['\*'],act)               #primary,
    begin
      Find.find("#{Project_details.dir.pwd}/#{dir_get}") do |f|
        stub=f.scan(/#{Project_details.dir.pwd}\/#{dir_get}\/(\S+)/).join
        place="#{dir_put}/#{stub}"
        action=case
        when File.file?(f)
          unless f =~/#{exclude_files.join("|")}/
            cp(f,place)
            Utils.chmod_file(place)
            "->  #{dir_put}/"
          end
        when File.directory?(f)
          FileUtils.mkpath(place) \
            unless FileTest.directory?(place)
          "./#{dir_get}/"
        else '?'
        end
        puts "#{action}#{stub}"
      end
    rescue
      puts "\n\n<< are you root? required for install >>"
    end
  end
  def self.setup_find_cp_r(dir_get,dir_put)                                    #secondary, using recursive copy
    begin
      Find.find("#{Project_details.dir.pwd}/#{dir_get}") do |f|
        stub=f.scan(/#{Project_details.dir.pwd}\/#{dir_get}\/(\S+)/).join
        place="#{dir_put}/#{stub}"
        case
        when File.file?(f)
          cp_r(f,place)
          Utils.chmod_util(place)
        when File.directory?(f)
          mkdir(place) \
            unless FileTest.directory?(place)
        end
      end
    rescue
      puts "\n\n<< are you root? required for install >>"
    end
  end
end
module Version_info
  def self.contents(vi)
    <<-WOK
---
:project: #{vi[:project]}
:version: #{vi[:version]}
:date_stamp: #{vi[:date_stamp]}
:date: "#{vi[:date]}"
    WOK
  end
  def self.git_version_extract
    if FileTest.file?('/usr/bin/git')
      x=`git describe --long --tags 2>&1`.strip.
        gsub(/^[a-z_-]*([0-9.]+)/,'\1').
        gsub(/([^-]*-g)/,'r\1').
        gsub(/-/,'.')
      x=(x=~/^[0-9]+\.[0-9]+\.[0-9]+\.r[0-9]+\.g[0-9a-f]{7}/) \
      ? x
      : nil
    else nil
    end
  end
  def self.version_number_use(vi)
    (git_version_extract.nil?) \
    ? (vi[:version])
    : git_version_extract
  end
  def self.version_number_info(vi)
    (Version_info.version_number_use(vi) != vi[:version_number]) \
    ? (%{#{vi[:version_number]} from git #{Version_info.version_number_use(vi)}})
    : vi[:version_number]
  end
  def self.version_number_info_stable
    vi=Version_info::Current.setting_stable
    (Version_info.version_number_use(vi) != vi[:version_number]) \
    ? (%{#{vi[:version_number]} from git #{Version_info.version_number_use(vi)}})
    : vi[:version_number]
  end
  module Current
    def self.yml_file_path
      'data/sisu/version.yml'
    end
    def self.settings(file)
      v="#{Dir.pwd}/#{file}"
      if File.exist?(v)
        YAML::load(File::open(v))
      else ''
      end
    end
    def self.file_stable
      yml_file_path
    end
    def self.setting_stable
      hsh=settings(file_stable)
      hsh[:version_number]=/([0-9]+\.[0-9]+\.[0-9]+)/.
        match(hsh[:version])[1]
      hsh
    end
    def self.content_stable
      Version_info.contents(setting_stable)
    end
  end
  module Next
    def self.settings(v)
      {
        project:        "#{Project_details.name}",
        version:        "#{v}",
        date:           "#{Utils.system_date}",
        date_stamp:     "#{Utils.system_date_stamp}",
      }
    end
    def self.setting_stable
      settings(SiSU_version)
    end
    def self.content_stable
      Version_info.contents(setting_stable)
    end
  end
  module Update
    def self.version_info_update_commit(filename,vi_hash_current,vi_content_current,vi_hash_next,vi_content_next)
      ans=%{update #{Project_details.name.downcase} version info replacing:
  #{vi_hash_current.sort}
with:
  #{vi_hash_next.sort}

#{vi_content_current} becoming:
#{vi_content_next}
proceed? }
      resp=Utils.answer?(ans)
      if resp
        fn="#{Dir.pwd}/#{filename}"
        if File.writable?("#{Dir.pwd}/.")
          file_version=File.new(fn,'w+')
          file_version << vi_content_next
          file_version.close
        else
          puts %{*WARN* is the file or directory writable? could not create #{filename}}
        end
      end
    end
    def self.update_stable
      version_info_update_commit(
        Version_info::Current.file_stable,
        Version_info::Current.setting_stable,
        Version_info::Current.content_stable,
        Version_info::Next.setting_stable,
        Version_info::Next.content_stable
      )
    end
    def self.changelog_header(vi)
      <<-WOK
-- #{vi[:version]}.orig.tar.xz (#{vi[:date]}:#{vi[:date_stamp].gsub(/20\d\dw/,'')})
https://git.sisudoc.org/projects/sisu/tag/?h=sisu_#{vi[:version]}
https://git.sisudoc.org/projects/sisu/tag/?h=debian/sisu_#{vi[:version]}-1
  sisu_#{vi[:version]}.orig.tar.xz
  sisu_#{vi[:version]}-1.dsc
      WOK
    end
    def self.changelog_header_stable
      changelog_header(Version_info::Current.setting_stable)
    end
  end
  self
end
module GitExtractTaggedVersionBuild
  def upstream
    system(%{ git checkout upstream })
  end
  def self.git_tagged_versions(vb=nil)
    if vb.tag
      v=if  vb.tag =~/sisu_[0-9](?:\.[0-9]){0,2}$/ then vb.tag
      elsif vb.tag =~/^[0-9](?:\.[0-9]){0,2}$/     then 'sisu_' + vb.tag
      else                                              'sisu_'
      end
      system(%{ git tag -l | ag --nocolor '^#{v}' })
    end
  end
  def self.git_checkout_and_build_version(vb)
    begin
      ver=if vb.tag =~/sisu_[0-9]\.[0-9]+\.[0-9]+/ then vb.tag
      elsif  vb.tag =~/^[0-9]\.[0-9]+\.[0-9]+/     then 'sisu_' + vb.tag
      else                                               vb.branch
      end
      install_branch='gem_create_build_stable'
      commands =<<-WOK
        git checkout #{ver} &&
        rake #{install_branch};
      WOK
      puts commands
      system(commands)
    ensure
      system(%{
        git checkout upstream
      })
    end
  end
  def self.git_checkout_and_build_and_install_version(vb)
    begin
      ver=if vb.tag =~/sisu_[0-9]\.[0-9]+\.[0-9]+/ then vb.tag
      elsif  vb.tag =~/^[0-9]\.[0-9]+\.[0-9]+/     then 'sisu_' + vb.tag
      else                                               vb.branch
      end
      install_branch='gem_create_build_install_stable'
      commands =<<-WOK
        git checkout #{ver} &&
        rake #{install_branch};
      WOK
      puts commands
      system(commands)
    ensure
      system(%{
        git checkout upstream
      })
    end
  end
end
module Gemspecs
  def self.info(vi)
    puts <<-WOK
--
name:       #{vi[:project].downcase}
version:    #{vi[:version_number]}
date:       #{vi[:date]}
summary:    #{vi[:project]}
    WOK
  end
  def self.contents(vi)
    #s.summary        = '#{vi[:project]}'
    <<-WOK
Gem::Specification.new do |s|
  s.name           = '#{vi[:project].downcase}'
  s.version        = '#{vi[:version_number]}'
  s.date           = '#{vi[:date]}'
  s.summary        = '#{Version_info.version_number_info(vi)}'
  s.description    = 'documents - structuring, publishing in multiple formats and search'
  s.authors        = ["Ralph Amissah"]
  s.email          = 'ralph.amissah@gmail.com'
  s.files          = Dir['lib/#{Project_details.name.downcase}/*.rb'] +
                     Dir['data/#{Project_details.name.downcase}/version.yml'] +
                     Dir['data/#{Project_details.name.downcase}/image/*'] +
                     Dir['bin/#{Project_details.name.downcase}gem'] +
                     Dir['bin/#{Project_details.name.downcase}']
  s.license        = 'GPL-3.0-or-later'
  s.executables << '#{Project_details.name.downcase}gem' << '#{Project_details.name.downcase}'
end
    WOK
  end
  def self.create(filename,gemspec)
    fn="#{Dir.pwd}/#{filename}.gemspec"
    if File.writable?("#{Dir.pwd}/.")
      file_sisu_gemspec=File.new(fn,'w+')
      file_sisu_gemspec << gemspec
      file_sisu_gemspec.close
    else
      puts %{*WARN* is the file or directory writable? could not create #{filename}}
    end
  end
  def self.build(fn)
    system(%{ gem build #{fn}.gemspec })
  end
  def self.install(fn)
    system(%{
      sudo gem install --no-document --verbose #{fn}.gem
    })
  end
  module Current
    def self.filename_stable
      Project_details.name.downcase \
      + '-' \
      + Version_info::Current.setting_stable[:version_number]
    end
    def self.info_stable
      Gemspecs.info(Version_info::Current.setting_stable)
    end
    def self.current_stable
      Gemspecs.contents(
        Version_info::Current.setting_stable,
      )
    end
    def self.create_stable
      Gemspecs.create(filename_stable,current_stable)
      Gemspecs.create(
        "#{Project_details.name.downcase}-stable",
        current_stable
      )
    end
    def self.build_stable
      Gemspecs.build(filename_stable)
    end
    def self.install_stable
      Gemspecs.install(filename_stable)
    end
  end
  module Next
    def self.filename_stable
      Project_details.name.downcase \
      + '-' \
      + Version_info::Next.setting_stable[:version_number]
    end
    def self.setting_stable
      Gemspecs.contents(
        Version_info::Next.setting_stable,
      )
    end
    def self.create_stable
      Gemspecs.create(filename_stable,setting_stable)
    end
    def self.build_stable
      Gemspecs.build(filename_stable)
    end
    def self.install_stable
      Gemspecs.install(filename_stable)
    end
  end
end
#+END_SRC

** Rake & Rant help

#+HEADER: :tangle ../setup/rbuild_help.rb
#+BEGIN_SRC ruby
module Help
  def self.project_help
    puts <<WOK

#{Project_details.name}
  #{Project_details.rake_rant}
  #{Project_details.platform_notice}

Commands quick start list
  #{Project_details.name} Rake/Rant Help: (Rakefile or Rantfile)
    rake (rake -T or rant -T)                  # a task list, (generated by Rake or Rant) for more complete and up to date help

  Quick start install and remove project #{Project_details.name}, as root:
    rake setup                                  # install #{Project_details.name}
    rake resetup                                # reinstall #{Project_details.name}
    rake remove_package                         # clobber/remove #{Project_details.name}, all versions
  alternatively to install as a gem:
    rake gem_create_build_install               # create gemspec; build gem, &; install gem, for #{Project_details.name}

  NOTE: these install options DO NOT setup #{Project_details.name} dependencies for:
  LaTeX(XeTeX) pdf output; or
  databases (postgresql or sqlite3) for #{Project_details.name} search
  should you wish to produce outputs that depend on them
  (on Debian for example this is the work of the debian installer)

WOK
  end
  def self.tasks(make='rake')
    begin
      system("#{make} -T")
    rescue
      puts 'is either rake or rant installed?'
    end
  end
end
#+END_SRC

* descriptions
** README

#+HEADER: :tangle ../README
#+BEGIN_SRC md
SISU - README
=============

INTRODUCTION
************

INTRODUCTION - WHAT IS SISU?
----------------------------

*SiSU* is a lightweight markup based document creation and publishing framework
that is controlled from the command line. Prepare documents for *SiSU* using
your text editor of choice, then use *SiSU* to generate various output document
formats.

From a single lightly prepared document (plain-text /UTF-8/) sisu custom builds
several standard output formats which share a common (text object) numbering
system for citation of content within a document (that also has implications
for search). The sisu engine works with an abstraction of the document's
structure and content from which it is possible to generate different forms of
representation of the document. *SiSU* produces: plain-text, /HTML/, /XHTML/,
/XML/, /EPUB/, /ODF/: /ODT/ (Opendocument), /LaTeX/, /PDF/, and populates an
/SQL/ database (/PostgreSQL/ or /SQLite/) with text objects, roughly, paragraph
sized chunks so that document searches are done at this level of granularity.

Outputs share a common citation numbering system, associated with text objects
and any semantic meta-data provided about the document.

*SiSU* also provides concordance files, document content certificates and
manifests of generated output. Book indexes may be made.

Some document markup samples are provided in the package sisu -markup-samples.

Homepages:
- <https://www.sisudoc.org/>

INSTALL OR RUN WITHOUT INSTALLATION
***********************************

SOURCE TREE
-----------

RUN OFF SOURCE PACKAGE DIRECTORY TREE (WITHOUT INSTALLING)
..........................................................

Download & unpack the latest source tarball

or

Git clone the latest source, to clone the latest source without the repo
history:

git clone --depth 1 git://git.sisudoc.org/git/code/sisu.git --branch upstream

Provided you have *Ruby*, *SiSU* can be run without installation straight from
the source package directory tree. Run ruby against the full path to bin/sisu
(in the unzipped source package directory tree)

Note however, that additional external package dependencies, such as texlive
(for pdfs), sqlite3 or postgresql (for search) should you desire to use them
are not taken care of for you.

GEM INSTALL
...........

Gem install, you need to:

(i) create the gemspec; (ii) build the gem (from the gemspec); (iii) install
the gem


----------------------------------------

GEM INSTALL WITH QI (QUICK INSTALL) SCRIPT
..........................................

(This requires that ruby -thor is installed).

qi (quick install) can go through the steps required to install the gem:

  qi gem --create --build --install --stable

or

  qi gem --create --build --install --unstable


----------------------------------------

GEM INSTALL WITH RAKE
.....................

Provided you have ruby & rake, this can be done with the single command:

  rake gem_create_build_install # (to build and install, alias gemcbi)

for individual steps (create, build, install) see rake options, rake -T to
specify sisu version for sisu installed via gem

For a list of alternative actions you may type:

  rake help

  rake -T

Rake: <https://rake.rubyforge.org/> <https://rubyforge.org/frs/?group_id=50>


----------------------------------------

MISC GEM
........

gem search sisu

  sisu _7.0.0_ --version

  sisu _7.0.0_ --version

to uninstall sisu installed via gem

  sudo gem uninstall --verbose sisu

DIRECT INSTALLATION WITH QI (QUICK INSTALL) SCRIPT
..................................................

(This requires that ruby -thor is installed).

Root will be requested as required:

  qi setup --bin --lib --conf --data --share --man

or

  qi setup --all

You may wish to do a dryrun to see where files would be installed without
copying them, to do so add the flag --dryrun

INSTALLATION WITH SETUP.RB
..........................

It should also be possible to install sisu using setup.rb

this is a three step process, in the root directory of the unpacked *SiSU* as
root type:

ruby setup.rb config
ruby setup.rb setup
#[as root:]
ruby setup.rb install

further information:
<https://i.loveruby.net/en/projects/setup/>
<https://i.loveruby.net/en/projects/setup/doc/usage.html>

  ruby setup.rb config && ruby setup.rb setup && sudo ruby setup.rb install

UNIX/LINUX DISTRIBUTION
-----------------------

A distribution install should take care of the dependencies of sisu for
producing various outputs.

DEBIAN
......

*SiSU* is available off the *Debian* archives. It should necessary only to run
as root, Using apt-get:

  apt-get update

  apt get install sisu-complete

(all sisu dependencies should be taken care of)

If there are newer versions of *SiSU* upstream, they will be available by
adding the following to your sources list /etc/apt/sources.list

#/etc/apt/sources.list

deb https://www.jus.uio.no/sisu/archive unstable main non-free

The non-free section is for sisu markup samples provided, which contain
authored works the substantive text of which cannot be changed, and which as a
result do not meet the debian free software guidelines.

*SiSU* is developed on *Debian*, and packages are available for *Debian* that
take care of the dependencies encountered on installation.

The package is divided into the following components:

  *sisu*, the base code, (the main package on which the others depend), without
  any dependencies other than ruby (and for convenience the ruby webrick web
  server), this generates a number of types of output on its own, other
  packages provide additional functionality, and have their dependencies

  *sisu-complete*, a dummy package that installs the whole of greater sisu as
  described below, apart from sisu -examples

  *sisu-pdf*, dependencies used by sisu to produce pdf from /LaTeX/ generated

  *sisu-postgresql*, dependencies used by sisu to populate postgresql database
  (further configuration is necessary)

  *sisu-sqlite*, dependencies used by sisu to populate sqlite database

  *sisu-markup-samples*, sisu markup samples and other miscellany (under
  *Debian* Free Software Guidelines non-free)

*SiSU* is available off Debian Unstable and Testing [link:
<https://packages.debian.org/cgi-bin/search_packages.pl?searchon=names&subword=1&version=all&release=all&keywords=sisu>]
[^1] install it using apt-get, aptitude or alternative *Debian* install tools.

DEPENDENCIES
------------

Here is a list of sisu' s current dependencies,[^2] which depend on such
factors as whether you want to generate pdf, whether you will be using *SiSU*
with or without a database, ...). sisu_markup-samples may also be of interest.

Package: sisu
Depends: ruby | ruby-interpreter, openssl, rsync, unzip, zip
Recommends: sisu-pdf, sisu-sqlite, sisu-postgresql, imagemagick |
graphicsmagick, keychain, openssh-client | lsh-client, po4a, qrencode, rake,
ruby-rmagick, tidy, tree, vim-addon-manager
Suggests: lv, calibre, pinfo, poedit, texinfo, trang

Package: sisu-complete
Depends: ruby | ruby-interpreter, sisu (= ${source:Version}), sisu-pdf (=
${source:Version}), sisu-postgresql (= ${source:Version}), sisu-sqlite (=
${source:Version})
Description-en: installs all SiSU related packages

Package: sisu-pdf
Depends: ruby | ruby-interpreter, sisu (= ${source:Version}),
texlive-latex-base, texlive-fonts-recommended, texlive-generic-recommended,
texlive-latex-recommended, texlive-latex-extra, texlive-math-extra,
texlive-xetex, fonts-liberation, lmodern, latex-cjk-all, texlive-lang-cjk
Suggests: evince | pdf-viewer

Package: sisu-postgresql
Depends: ruby | ruby-interpreter, sisu (= ${source:Version}), postgresql,
ruby-dbd-pg, ruby-dbi, ruby-fcgi
Suggests: postgresql-contrib

Package: sisu-sqlite
Depends: ruby | ruby-interpreter, sisu (= ${source:Version}), sqlite3,
ruby-sqlite3, ruby-dbd-sqlite3, ruby-dbi, ruby-fcgi

Package: sisu-markup-samples
Depends: sisu

COMMANDS
********

COMMANDS SUMMARY
----------------

DESCRIPTION
...........

*SiSU* is a document publishing system, that from a simple single marked-up
document, produces multiple output formats including: /plaintext/, /HTML/,
/XHTML/, /XML/, /EPUB/, /ODT/ (/OpenDocument/ (/ODF/) text), /LaTeX/, /PDF/,
info, and /SQL/ (/PostgreSQL/ and /SQLite/) , which share text object numbers
("object citation numbering") and the same document structure information. For
more see: <https://sisudoc.org> or <https://git.sisudoc.org>

DOCUMENT PROCESSING COMMAND FLAGS
.................................

*-[0-9] [filename/wildcard]*
see --act

*--ao [filename/wildcard/url]*
assumed for most other flags, creates new intermediate files for processing
(abstract objects, document abstraction) that is used in all subsequent
processing of other output. This step is assumed for most processing flags. To
skip it see -n. Alias -m.

*--act[s0-9] [filename/wildcard]*
--act0 to --act9 configurable shortcuts for multiple flags, -0 to -9 synonyms,
configure in sisurc.yml; sisu default action on a specified file where no flag
is provided is --act0; --act or --acts for information on current actions
ascribed to --act0 to --act9

*--asciidoc [filename/wildcard]*
asciidoc, smart text (not available)

*-b [filename/wildcard]*
see --xhtml

*--by-**
see --output-by-*

*-C*
configure/initialise shared output directory files initialize shared output
directory (config files such as css and dtd files are not updated if they
already exist unless modifier is used). -C --init-site configure/initialise
site more extensive than -C on its own, shared output directory files/force
update, existing shared output config files such as css and dtd files are
updated if this modifier is used.

*-c [filename/wildcard]*
see --color-toggle

*--color*
see --color-on

*--color-off*
turn off color in output to terminal

*--color-on*
turn on color in output to terminal

*--color-toggle [filename/wildcard]*
screen toggle ansi screen colour on or off depending on default set (unless -c
flag is used: if sisurc colour default is set to 'true', output to screen will
be with colour, if sisurc colour default is set to 'false' or is undefined
screen output will be without colour). Alias -c

*--configure*
configure/initialise shared output directory files initialize shared output
directory (config files such as css and dtd files are not updated if they
already exist unless modifier is used). The equivalent of: -C --init-site
configure/initialise site, more extensive than -C on its own, shared output
directory files/force update, existing shared output config files such as css
and dtd files are updated if -CC is used.

*--concordance [filename/wildcard]*
produces concordance (wordmap) a rudimentary index of all the words in a
document. (Concordance files are not generated for documents of over 260,000
words unless this limit is increased in the file sisurc.yml). Alias -w

*-d [filename/wildcard/url]*
see --docbook

*--dal [filename/wildcard/url]*
(abstract objects, document abstraction renamed abstract objects in sisu5) see
--ao

*--delete [filename/wildcard]*
see --zap

*--digests [filename/wildcard/url]*
document digest or document content certificate ( DCC ) as sha digest tree of
the document: the digest for the document, and digests for each object
contained within the document (together with information on software versions
that produced it) (digest.txt). --digests -V for verbose digest output to
screen.

*--docbook [filename/wildcard/url]*
docbook xml

*--dom [filename/wildcard/url]*
see --xml-dom

*--dump[=directory_path] [filename/wildcard]*
places output in directory specified, if none is specified in the current
directory (pwd). Unlike using default settings /HTML/ files have embedded css.
Compare --redirect

*-e [filename/wildcard]*
see --epub

*--epub [filename/wildcard]*
produces an epub document, [sisu version >=2 ] (filename.epub). Alias -e

*--errors-as-warnings*
override stop processing on error. Alias --no-stop

*--exc-**
exclude output feature, overrides configuration settings --exc-numbering, see
--exc-ocn; --exc-ocn, (exclude "object citation numbering", (switches off
object citation numbers), affects html (seg, scroll), epub, xhtml, xml, pdf) ;
--exc-toc, (exclude table of contents, affects html (scroll), epub, pdf) ;
--exc-links-to-manifest, --exc-manifest-links, (exclude links to manifest,
affects html (seg, scroll)); --exc-search-form, (exclude search form, affects
html (seg, scroll), manifest); --exc-minitoc, (exclude mini table of contents,
affects html (seg), concordance, manifest); --exc-manifest-minitoc, (exclude
mini table of contents, affects manifest); --exc-html-minitoc, (exclude mini
table of contents, affects html (seg), concordance); --exc-html-navigation,
(exclude navigation, affects html (seg)); --exc-html-navigation-bar, (exclude
navigation bar, affects html (seg)); --exc-html-search-form, (exclude search
form, affects html (seg, scroll)); --exc-html-right-pane, (exclude right
pane/column, affects html (seg, scroll)); --exc-html-top-band, (exclude top
band, affects html (seg, scroll), concordance (minitoc forced on to provide seg
navigation)); --exc-segsubtoc (exclude sub table of contents, affects html
(seg), epub) ; see also --inc-*

*-F [--webserv=webrick]*
see --sample-search-form

*-f [optional string part of filename]*
see --find

*--fictionbook [filename/wildcard/url]*
fictionbook xml (not available)

*--find [optional string part of filename]*
see --glob

*-G [optional string part of filename]*
see --glob

*-g [filename/wildcard]*
see --git

*--git [filename/wildcard]*
produces or updates markup source file structure in a git repo (experimental
and subject to change). Alias -g

*--glob [optional string part of filename]*
without match string, glob all .sst .ssm files in directory (including language
subdirectories). With match string, find files that match given string in
directory (including language subdirectories). Alias -G, -f, --find

*-h [filename/wildcard]*
see --html

*--harvest *.ss[tm]*
makes two lists of sisu output based on the sisu markup documents in a
directory: list of author and authors works (year and titles), and; list by
topic with titles and author. Makes use of header metadata fields (author,
title, date, topic_register). Can be used with maintenance (-M) and remote
placement (-R) flags.

*--html [filename/wildcard]*
produces html output, in two forms (i) segmented text with table of contents
(toc.html and index.html) and (ii) the document in a single file (scroll.html).
Alias -h

*--html-scroll [filename/wildcard]*
produces html output, the document in a single file (scroll.html) only. Compare
--html-seg and --html

*--html-seg [filename/wildcard]*
produces html output, segmented text with table of contents (toc.html and
index.html). Compare --html-scroll and --html

*--html-strict [filename/wildcard]*
produces html with --strict option. see --strict

*-I [filename/wildcard]*
see --texinfo

*-i [filename/wildcard]*
see --manpage

*--i18n-**
these flags affect output by filetype and filename): --i18n-mono
(--monolingual) output filenames without language code for default language
('en' or as set); --i18n-multi (--multilingual) language code provided as part
of the output filename, this is the default. Where output is in one language
only the language code may not be desired. see also --output-by-*

*--inc-**
include output feature, overrides configuration settings, (usually the default
if none set), has precedence over --exc-* (exclude output feature). Some detail
provided under --exc-*, see --exc-*

*-j [filename/wildcard]*
copies images associated with a file for use by html, xhtml & xml outputs
(automatically invoked by --dump & redirect).

*-k*
see --color-off

*--keep-processing-files [filename/wildcard/url]*
see --maintenance

*-M [filename/wildcard/url]*
see --maintenance

*-m [filename/wildcard/url]*
see --dal (document abstraction level/layer)

*--machine [filename/wildcard/url]*
see --dal (document abstraction level/layer)

*--maintenance [filename/wildcard/url]*
maintenance mode, interim processing files are preserved and their locations
indicated. (also see -V). Aliases -M and --keep-processing-files.

*--manifest [filename/wildcard]*
produces an html summary of output generated (hyperlinked to content) and
document specific metadata (sisu_manifest.html). This step is assumed for most
processing flags.

*--manpage [filename/wildcard]*
produces man page of file, not suitable for all outputs. Alias -i

*--markdown [filename/wildcard/url]*
markdown smart text (not available)

*--monolingual*
see --i18n-*

*--multilingual*
see --i18n-*

*-N [filename/wildcard/url]*
see --digests

*-n [filename/wildcard/url]*
skip the creation of intermediate processing files (document abstraction) if
they already exist, this skips the equivalent of -m which is otherwise assumed
by most processing flags.

*--no-**
see --exc-*

*--no-stop*
override stop processing on error. Alias --erros-as-warnings

*--numbering*
turn on "object citation numbers". See --inc-ocn and --exc-ocn

*-o [filename/wildcard/url]*
see --odt

*--ocn*
"object citation numbers". See --inc-ocn and --exc-ocn

*--odf [filename/wildcard/url]*
see --odt

*--odt [filename/wildcard/url]*
output basic document in opendocument file format (opendocument.odt). Alias -o

*--output-by-**
select output directory structure from 3 alternatives: --output-by-language,
(language directory (based on language code) with filetype (html, epub, pdf
etc.) subdirectories); --output-by-filetype, (filetype directories with
language code as part of filename); --output-by-filename, (filename directories
with language code as part of filename). This is configurable. Alias --by-*

*-P [language_directory/filename language_directory]*
see --po4a

*-p [filename/wildcard]*
see --pdf

*--papersize-(a4|a5|b5|letter|legal)*
in conjunction with --pdf set pdf papersize, overriding any configuration
settings, to set more than one papersize repeat the option --pdf --papersize-a4
--papersize-letter. See also --papersize=*

*--papersize=a4,a5,b5,letter,legal* in conjunction with --pdf set pdf
papersize, overriding any configuration settings, to set more than one
papersize list after the equal sign with a comma separator
--papersize=a4,letter. See also --papersize-*

*--pdf [filename/wildcard]*
produces /LaTeX/ pdf (portrait.pdf & landscape.pdf). Orientation and papersize
may be set on the command-line. Default paper size is set in config file, or
document header, or provided with additional command line parameter, e.g.
--papersize-a4 preset sizes include: 'A4', U.S. 'letter' and 'legal' and book
sizes 'A5' and 'B5' (system defaults to A4), and; --landscape or --portrait,
so: e.g. "sisu --pdf-a4 --pdf-letter --landscape --verbose [filename/wildcard]"
or "sisu --pdf --landscape --a4 --letter --verbose [filename/wildcard]". --pdf
defaults to both landscape & portrait output, and a4 if no other papersizes are
configured. Related options --pdf-landscape --pdf-portrait --pdf-papersize-*
--pdf-papersize=[list]. Alias -p

*--pdf-l [filename/wildcard]*
See --pdf-landscape

*--pdf-landscape [filename/wildcard]*
sets orientation, produces /LaTeX/ pdf landscape.pdf. Default paper size is set
in config file, or document header, or provided with additional command line
parameter, e.g. --papersize-a4 preset sizes include: 'A4', U.S. 'letter' and
'legal' and book sizes 'A5' and 'B5' (system defaults to A4). Related options
--pdf --pdf-portrait. See also --papersize-* or --papersize=[list]. Alias
--pdf-l or in conjunction with --pdf --landscape

*--pdf-p [filename/wildcard]*
See --pdf-portrait

*--pdf-portrait [filename/wildcard]*
sets orientation, produces /LaTeX/ pdf portrait.pdf.pdf. Default paper size is
set in config file, or document header, or provided with additional command
line parameter, e.g. --papersize-a4 preset sizes include: 'A4', U.S. 'letter'
and 'legal' and book sizes 'A5' and 'B5' (system defaults to A4). Related
options --pdf --pdf-landscape. See also --papersize-* or --papersize=[list].
Alias --pdf-p or in conjunction with --pdf --portrait

*--pg-[instruction] [filename]*
database /PostgreSQL/ ( --pgsql may be used instead) possible instructions,
include: --pg-createdb; --pg-create; --pg-dropall; --pg-import [filename];
--pg-update [filename]; --pg-remove [filename]; see database section below.

*--po [language_directory/filename language_directory]*
see --po4a

*--po4a [language_directory/filename language_directory]*
produces .pot and po files for the file in the languages specified by the
language directory. *SiSU* markup is placed in subdirectories named with the
language code, e.g. en/ fr/ es/. The sisu config file must set the output
directory structure to multilingual. v3, experimental

*-Q [filename/wildcard]*
see --qrcode

*-q [filename/wildcard]*
see --quiet

*--qrcode [filename/wildcard]*
generate QR code image of metadata (used in manifest).

*--quiet [filename/wildcard]*
quiet less output to screen.

*-R [filename/wildcard]*
see --rsync

*-r [filename/wildcard]*
see --scp

*--redirect[=directory_path] [filename/wildcard]*
places output in subdirectory under specified directory, subdirectory uses the
filename (without the suffix). If no output directory is specified places the
subdirectory under the current directory (pwd). Unlike using default settings
/HTML/ files have embedded css. Compare --dump

*--rst [filename/wildcard/url]*
ReST (rST restructured text) smart text (not available)

*--rsync [filename/wildcard]*
copies sisu output files to remote host using rsync. This requires that
sisurc.yml has been provided with information on hostname and username, and
that you have your "keys" and ssh agent in place. Note the behavior of rsync
different if -R is used with other flags from if used alone. Alone the rsync
--delete parameter is sent, useful for cleaning the remote directory (when -R
is used together with other flags, it is not). Also see --scp. Alias -R

*-S*
see --sisupod

*-S [filename/wildcard]*
see --sisupod

*-s [filename/wildcard]*
see --source

*--sample-search-form [--db-(pg|sqlite)]*
generate examples of (naive) cgi search form for /SQLite/ or PgSQL depends on
your already having used sisu to populate an /SQLite/ or PgSQL database, (the
/SQLite/ version scans the output directories for existing sisu_sqlite
databases, so it is first necessary to create them, before generating the
search form) see --sqlite & --pg and the database section below. Optional
additional parameters: --db-user='www-data'. The samples are dumped in the
present work directory which must be writable, (with screen instructions given
that they be copied to the cgi-bin directory). Alias -F

*--sax [filename/wildcard/url]*
see --xml-sax

*--scp [filename/wildcard]*
copies sisu output files to remote host using scp. This requires that
sisurc.yml has been provided with information on hostname and username, and
that you have your "keys" and ssh agent in place. Also see --rsync. Alias -r

*--sha256*
set hash digest where used to sha256

*--sha512*
set hash digest where used to sha512

*--sqlite-[instruction] [filename]*
database type set to /SQLite/, this produces one of two possible databases,
without additional database related instructions it produces a discreet
/SQLite/ file for the document processed; with additional instructions it
produces a common /SQLite/ database of all processed documents that (come from
the same document preparation directory and as a result) share the same output
directory base path (possible instructions include: --sqlite-createdb;
--sqlite-create; --sqlite-dropall; --sqlite-import [filename]; --sqlite-update
[filename]; --sqlite-remove [filename]); see database section below.

*--sisupod*
produces a sisupod a zipped sisu directory of markup files including sisu
markup source files and the directories local configuration file, images and
skins. Note: this only includes the configuration files or skins contained in
./_sisu not those in ~/.sisu -S [filename/wildcard] option. Note: (this option
is tested only with zsh). Alias -S

*--sisupod [filename/wildcard]*
produces a zipped file of the prepared document specified along with associated
images, by default named sisupod.zip they may alternatively be named with the
filename extension .ssp This provides a quick way of gathering the relevant
parts of a sisu document which can then for example be emailed. A sisupod
includes sisu markup source file, (along with associated documents if a master
file, or available in multilingual versions), together with related images and
skin. *SiSU* commands can be run directly against a sisupod contained in a
local directory, or provided as a url on a remote site. As there is a security
issue with skins provided by other users, they are not applied unless the flag
--trust or --trusted is added to the command instruction, it is recommended
that file that are not your own are treated as untrusted. The directory
structure of the unzipped file is understood by sisu, and sisu commands can be
run within it. Note: if you wish to send multiple files, it quickly becomes
more space efficient to zip the sisu markup directory, rather than the
individual files for sending). See the -S option without [filename/wildcard].
Alias -S

*--source [filename/wildcard]*
copies sisu markup file to output directory. Alias -s

*--strict*
together with --html, produces more w3c compliant html, for example not having
purely numeric identifiers for text, the location object url#33 becomes url#o33

*-T [filename/wildcard (*.termsheet.rb)]*
standard form document builder, preprocessing feature

*-t [filename/wildcard]*
see --txt

*--texinfo [filename/wildcard]*
produces texinfo and info file, (view with pinfo). Alias -I

*--textile [filename/wildcard/url]*
textile smart text (not available)

*--txt [filename/wildcard]*
produces /plaintext/ with Unix linefeeds and without markup, (object numbers
are omitted), has footnotes at end of each paragraph that contains them [ -A
for equivalent dos (linefeed) output file] [see -e for endnotes]. (Options
include: --endnotes for endnotes --footnotes for footnotes at the end of each
paragraph --unix for unix linefeed (default) --msdos for msdos linefeed). Alias
-t

*--txt-asciidoc [filename/wildcard]*
see --asciidoc

*--txt-markdown [filename/wildcard]*
see --markdown

*--txt-rst [filename/wildcard]*
see --rst

*--txt-textile [filename/wildcard]*
see --textile

*-U [filename/wildcard]*
see --urls

*-u [filename/wildcard]*
provides url mapping of output files for the flags requested for processing,
also see -U

*--urls [filename/wildcard]*
prints url output list/map for the available processing flags options and
resulting files that could be requested, (can be used to get a list of
processing options in relation to a file, together with information on the
output that would be produced), -u provides url output mapping for those flags
requested for processing. The default assumes sisu_webrick is running and
provides webrick url mappings where appropriate, but these can be switched to
file system paths in sisurc.yml. Alias -U

*-V*
on its own, provides *SiSU* version and environment information (sisu --help
env)

*-V [filename/wildcard]*
even more verbose than the -v flag.

*-v*
on its own, provides *SiSU* version information

*-v [filename/wildcard]*
see --verbose

*--verbose [filename/wildcard]*
provides verbose output of what is being generated, where output is placed (and
error messages if any), as with -u flag provides a url mapping of files created
for each of the processing flag requests. Alias -v

*--very-verbose [filename/wildcard]*
provides more verbose output of what is being generated. See --verbose. Alias
-V

*--version*
sisu version

*-W*
see --webrick

*-w [filename/wildcard]*
see --concordance

*--webrick*
starts ruby' s webrick webserver points at sisu output directories, the default
port is set to 8081 and can be changed in the resource configuration files.
[tip: the webrick server requires link suffixes, so html output should be
created using the -h option rather than -H ; also, note -F webrick ]. Alias -W

*--wordmap [filename/wildcard]*
see --concordance

*--xhtml [filename/wildcard]*
produces xhtml//XML/ output for browser viewing (sax parsing). Alias -b

*--xml-dom [filename/wildcard]*
produces /XML/ output with deep document structure, in the nature of dom. Alias
-X

*--xml-sax [filename/wildcard]*
produces /XML/ output shallow structure (sax parsing). Alias -x

*-X [filename/wildcard]*
see --xml-dom

*-x [filename/wildcard]*
see --xml-sax

*-Y [filename/wildcard]*
produces a short sitemap entry for the document, based on html output and the
sisu_manifest. --sitemaps generates/updates the sitemap index of existing
sitemaps. (Experimental, [g,y,m announcement this week])

*-y [filename/wildcard]*
see --manifest

*-Z [filename/wildcard]*
see --zap

*--zap [filename/wildcard]*
Zap, if used with other processing flags deletes output files of the type about
to be processed, prior to processing. If -Z is used as the lone processing
related flag (or in conjunction with a combination of -[mMvVq]), will remove
the related document output directory. Alias -Z

COMMAND LINE MODIFIERS
----------------------

*--no-ocn*
[with --html --pdf or --epub] switches off /object citation numbering/. Produce
output without identifying numbers in margins of html or /LaTeX//pdf output.

*--no-annotate*
strips output text of editor endnotes[^*1] denoted by asterisk or dagger/plus
sign

*--no-asterisk*
strips output text of editor endnotes[^*2] denoted by asterisk sign

*--no-dagger*
strips output text of editor endnotes[^+1] denoted by dagger/plus sign

DATABASE COMMANDS
-----------------

*dbi - database interface*

*--pg or --pgsql* set for /PostgreSQL/ *--sqlite* default set for /SQLite/ -d
is modifiable with --db=[database type (PgSQL or /SQLite/) ]

*--pg -v --createall*
initial step, creates required relations (tables, indexes) in existing
/PostgreSQL/ database (a database should be created manually and given the same
name as working directory, as requested) (rb.dbi) [ -dv --createall /SQLite/
equivalent] it may be necessary to run sisu -Dv --createdb initially NOTE: at
the present time for /PostgreSQL/ it may be necessary to manually create the
database. The command would be 'createdb [database name]' where database name
would be SiSU_[present working directory name (without path)]. Please use only
alphanumerics and underscores.

*--pg -v --import*
[filename/wildcard] imports data specified to /PostgreSQL/ db (rb.dbi) [ -dv
--import /SQLite/ equivalent]

*--pg -v --update*
[filename/wildcard] updates/imports specified data to /PostgreSQL/ db (rb.dbi)
[ -dv --update /SQLite/ equivalent]

*--pg --remove*
[filename/wildcard] removes specified data to /PostgreSQL/ db (rb.dbi) [ -d
--remove /SQLite/ equivalent]

*--pg --dropall*
kills data" and drops (/PostgreSQL/ or /SQLite/) db, tables & indexes [ -d
--dropall /SQLite/ equivalent]

The -v is for verbose output.

COMMAND LINE WITH FLAGS - BATCH PROCESSING
..........................................

In the data directory run sisu -mh filename or wildcard eg. "sisu -h cisg.sst"
or "sisu -h *.{sst,ssm}" to produce html version of all documents.

Running sisu (alone without any flags, filenames or wildcards) brings up the
interactive help, as does any sisu command that is not recognised. Enter to
escape.

INTRODUCTION TO SISU MARKUP[^3]
-------------------------------

SUMMARY
.......

*SiSU* source documents are /plaintext/ (/UTF-8/)[^4] files

All paragraphs are separated by an empty line.

Markup is comprised of:

- at the top of a document, the document header made up of semantic meta-data
about the document and if desired additional processing instructions (such an
instruction to automatically number headings from a particular level down)

- followed by the prepared substantive text of which the most important single
characteristic is the markup of different heading levels, which define the
primary outline of the document structure. Markup of substantive text includes:

  * heading levels defines document structure

  * text basic attributes, italics, bold etc.

  * grouped text (objects), which are to be treated differently, such as code
  blocks or poems.

  * footnotes/endnotes

  * linked text and images

  * paragraph actions, such as indent, bulleted, numbered-lists, etc.

MARKUP RULES, DOCUMENT STRUCTURE AND METADATA REQUIREMENTS
..........................................................

minimal content/structure requirement:

[metadata]

A~ (level A [title])

1~ (at least one level 1 [segment/(chapter)])

structure rules (document heirarchy, heading levels):

there are two sets of heading levels ABCD (title & parts if any) and 123
(segment & subsegments if any)

sisu has the fllowing levels:

A~ [title]              .
   required (== 1)   followed by B~ or 1~
B~ [part]               *
   followed by C~ or 1~
C~ [subpart]            *
   followed by D~ or 1~
D~ [subsubpart]         *
   followed by 1~
1~ [segment (chapter)]  +
   required (>= 1)   followed by text or 2~
text                    *
   followed by more text or 1~, 2~
   or relevant part *()
2~ [subsegment]         *
   followed by text or 3~
text                    *
   followed by more text or 1~, 2~ or 3~
   or relevant part, see *()
3~ [subsubsegment]      *
   followed by text
text                    *
   followed by more text or 1~, 2~ or 3~ or relevant part, see *()

*(B~ if none other used;
  if C~ is last used: C~ or B~;
  if D~ is used: D~, C~ or B~)

- level A~ is the tile and is mandatory
- there can only be one level A~
- heading levels BCD, are optional and there may be several of each
  (where all three are used corresponding to e.g. Book Part Section)
  * sublevels that are used must follow each other sequentially
    (alphabetically),
- heading levels A~ B~ C~ D~ are followed by other heading levels rather
  than substantive text
  which may be the subsequent sequential (alphabetic) heading part level
  or a heading (segment) level 1~
- there must be at least one heading (segment) level 1~
  (the level on which the text is segmented, in a book would correspond
  to the Chapter level)
- additional heading levels 1~ 2~ 3~ are optional and there may be several
  of each
- heading levels 1~ 2~ 3~ are followed by text (which may be followed by
  the same heading level)
  and/or the next lower numeric heading level (followed by text)
  or indeed return to the relevant part level
  (as a corollary to the rules above substantive text/ content
  must be preceded by a level 1~ (2~ or 3~) heading)

MARKUP EXAMPLES
...............


----------------------------------------

ONLINE
......

Online markup examples are available together with the respective outputs
produced from <https://git.sisudoc.org/sisu-markup> or from

There is of course this document, which provides a cursory overview of sisu
markup and the respective output produced:

an alternative presentation of markup syntax:
/usr/share/doc/sisu/on_markup.txt.gz


----------------------------------------

INSTALLED
.........

With *SiSU* installed sample skins may be found in:
/usr/share/doc/sisu/markup-samples (or equivalent directory) and if sisu
-markup-samples is installed also under:
/usr/share/doc/sisu/markup-samples-non-free

MARKUP OF HEADERS
-----------------

Headers contain either: semantic meta-data about a document, which can be used
by any output module of the program, or; processing instructions.

Note: the first line of a document may include information on the markup
version used in the form of a comment. Comments are a percentage mark at the
start of a paragraph (and as the first character in a line of text) followed by
a space and the comment:

% this would be a comment

SAMPLE HEADER
.............

This current document is loaded by a master document that has a header similar
to this one:

% SiSU master 4.0

@title: SiSU
  :subtitle: Manual

@creator:
  :author: Amissah, Ralph

@publisher: [publisher name]

@rights: Copyright (C) Ralph Amissah 2007, part of SiSU documentation, License GPL 3

@classify:
  :topic_register: SiSU:manual;electronic documents:SiSU:manual
  :subject: ebook, epublishing, electronic book, electronic publishing,
    electronic document, electronic citation, data structure,
     citation systems, search

% used_by: manual

@date:
  :published: 2008-05-22
  :created: 2002-08-28
  :issued: 2002-08-28
  :available: 2002-08-28
  :modified: 2010-03-03

@make:
  :num_top: 1
  :breaks: new=C; break=1
  :bold: /Gnu|Debian|Ruby|SiSU/
  :home_button_text: {SiSU}https://sisudoc.org; {git}https://git.sisudoc.org
  :footer: {SiSU}https://sisudoc.org; {git}https://git.sisudoc.org
  :manpage: name=sisu - documents: markup, structuring, publishing in multiple standard formats, and search;
     synopsis=sisu [-abcDdeFhIiMmNnopqRrSsTtUuVvwXxYyZz0-9] [filename/wildcard ]
     . sisu [-Ddcv] [instruction]
     . sisu [-CcFLSVvW]

@links:
  { SiSU Homepage }https://www.sisudoc.org/
  { SiSU Manual }https://www.sisudoc.org/sisu/sisu_manual/
  { SiSU Git repo }https://git.sisudoc.org/sisu/
  { SiSU @ Debian }https://packages.qa.debian.org/s/sisu.html
  { SiSU Project @ Debian }https://qa.debian.org/developer.php?login=sisu@lists.sisudoc.org
  { SiSU @ Wikipedia }https://en.wikipedia.org/wiki/SiSU

AVAILABLE HEADERS
.................

Header tags appear at the beginning of a document and provide meta information
on the document (such as the /Dublin Core/) , or information as to how the
document as a whole is to be processed. All header instructions take the form
@headername: or on the next line and indented by once space :subheadername: All
/Dublin Core/ meta tags are available

*@identifier:* information or instructions

where the "identifier" is a tag recognised by the program, and the
"information" or "instructions" belong to the tag/identifier specified

Note: a header where used should only be used once; all headers apart from
@title: are optional; the @structure: header is used to describe document
structure, and can be useful to know.

This is a sample header

% SiSU 2.0 [declared file-type identifier with markup version]

@title: [title text] [this header is the only one that is mandatory]
  :subtitle: [subtitle if any]
  :language: English

@creator:
  :author: [Lastname, First names]
  :illustrator: [Lastname, First names]
  :translator: [Lastname, First names]
  :prepared_by: [Lastname, First names]

@date:
  :published: [year or yyyy-mm-dd]
  :created: [year or yyyy-mm-dd]
  :issued: [year or yyyy-mm-dd]
  :available: [year or yyyy-mm-dd]
  :modified: [year or yyyy-mm-dd]
  :valid: [year or yyyy-mm-dd]
  :added_to_site: [year or yyyy-mm-dd]
  :translated: [year or yyyy-mm-dd]

@rights:
  :copyright: Copyright (C) [Year and Holder]
  :license: [Use License granted]
  :text: [Year and Holder]
  :translation: [Name, Year]
  :illustrations: [Name, Year]

@classify:
  :topic_register: SiSU:markup sample:book;book:novel:fantasy
  :type:
  :subject:
  :description:
  :keywords:
  :abstract:
  :loc: [Library of Congress classification]
  :dewey: [Dewey classification

@identify:
  :isbn: [ISBN]
  :oclc:

@links: { SiSU }https://www.sisudoc.org
  { FSF }https://www.fsf.org

@make:
  :num_top: 1
  :headings: [text to match for each level
    (e.g. PART; Chapter; Section; Article; or another: none; BOOK|FIRST|SECOND; none; CHAPTER;)
  :breaks: new=:C; break=1
  :promo: sisu, ruby, sisu_search_libre, open_society
  :bold: [regular expression of words/phrases to be made bold]
  :italics: [regular expression of words/phrases to italicise]
  :home_button_text: {SiSU}https://sisudoc.org; {git}https://git.sisudoc.org
  :footer: {SiSU}https://sisudoc.org; {git}https://git.sisudoc.org

@original:
  :language: [language]

@notes:
  :comment:
  :prefix: [prefix is placed just after table of contents]

MARKUP OF SUBSTANTIVE TEXT
--------------------------

HEADING LEVELS
..............

Heading levels are :A~ ,:B~ ,:C~ ,1~ ,2~ ,3~ ... :A - :C being part / section
headings, followed by other heading levels, and 1 -6 being headings followed by
substantive text or sub-headings. :A~ usually the title :A~? conditional level
1 heading (used where a stand-alone document may be imported into another)

*:A~ [heading text]* Top level heading [this usually has similar content to the
title @title: ] NOTE: the heading levels described here are in 0.38 notation,
see heading

*:B~ [heading text]* Second level heading [this is a heading level divider]

*:C~ [heading text]* Third level heading [this is a heading level divider]

*1~ [heading text]* Top level heading preceding substantive text of document or
sub-heading 2, the heading level that would normally be marked 1. or 2. or 3.
etc. in a document, and the level on which sisu by default would break html
output into named segments, names are provided automatically if none are given
(a number), otherwise takes the form 1~my_filename_for_this_segment

*2~ [heading text]* Second level heading preceding substantive text of document
or sub-heading 3 , the heading level that would normally be marked 1.1 or 1.2
or 1.3 or 2.1 etc. in a document.

*3~ [heading text]* Third level heading preceding substantive text of document,
that would normally be marked 1.1.1 or 1.1.2 or 1.2.1 or 2.1.1 etc. in a
document

1~filename level 1 heading,

% the primary division such as Chapter that is followed by substantive text, and may be further subdivided (this is the level on which by default html segments are made)

FONT ATTRIBUTES
...............

*markup example:*

normal text, *{emphasis}*, !{bold text}!, /{italics}/, _{underscore}_, "{citation}",
^{superscript}^, ,{subscript},, +{inserted text}+, -{strikethrough}-, #{monospace}#

normal text

*{emphasis}* [note: can be configured to be represented by bold, italics or underscore]

!{bold text}!

/{italics}/

_{underscore}_

"{citation}"

^{superscript}^

,{subscript},

+{inserted text}+

-{strikethrough}-

#{monospace}#

*resulting output:*

normal text, *emphasis*, *bold text*, /italics/, _underscore_, "citation",
^superscript^, [subscript], +inserted text+, -strikethrough-, #monospace#

normal text

*emphasis* [note: can be configured to be represented by bold, italics or
underscore]

*bold text*

/italics/

_underscore_

"citation"

^superscript^

[subscript]

+inserted text+

-strikethrough-

#monospace#

INDENTATION AND BULLETS
.......................

*markup example:*

ordinary paragraph

_1 indent paragraph one step

_2 indent paragraph two steps

_9 indent paragraph nine steps

*resulting output:*

ordinary paragraph

  indent paragraph one step

    indent paragraph two steps

                  indent paragraph nine steps

*markup example:*

_* bullet text

_1* bullet text, first indent

_2* bullet text, two step indent

*resulting output:*

- bullet text

  * bullet text, first indent

    * bullet text, two step indent

Numbered List (not to be confused with headings/titles, (document structure))

*markup example:*

# numbered list                numbered list 1., 2., 3, etc.

_# numbered list numbered list indented a., b., c., d., etc.

HANGING INDENTS
...............

*markup example:*

_0_1 first line no indent,
rest of paragraph indented one step

_1_0 first line indented,
rest of paragraph no indent

in each case level may be 0-9

*resulting output:*

first line no indent, rest of paragraph indented one step; first line no
  indent, rest of paragraph indented one step; first line no indent, rest of
  paragraph indented one step; first line no indent, rest of paragraph indented
  one step; first line no indent, rest of paragraph indented one step; first
  line no indent, rest of paragraph indented one step; first line no indent,
  rest of paragraph indented one step; first line no indent, rest of paragraph
  indented one step; first line no indent, rest of paragraph indented one step;

A regular paragraph.

  first line indented, rest of paragraph no indent first line indented, rest of
paragraph no indent first line indented, rest of paragraph no indent first line
indented, rest of paragraph no indent first line indented, rest of paragraph no
indent first line indented, rest of paragraph no indent first line indented,
rest of paragraph no indent first line indented, rest of paragraph no indent
first line indented, rest of paragraph no indent first line indented, rest of
paragraph no indent first line indented, rest of paragraph no indent

in each case level may be 0-9

*live-build* A collection of scripts used to build customized *Debian*
  Livesystems. /live-build/ was formerly known as live-helper, and even earlier
  known as live-package.

*live-build*
  A collection of scripts used to build customized *Debian* Livesystems.
  /live-build/ was formerly known as live-helper, and even earlier known as
  live-package.

FOOTNOTES / ENDNOTES
....................

Footnotes and endnotes are marked up at the location where they would be
indicated within a text. They are automatically numbered. The output type
determines whether footnotes or endnotes will be produced

*markup example:*

~{ a footnote or endnote }~

*resulting output:*

[^5]

*markup example:*

normal text~{ self contained endnote marker & endnote in one }~ continues

*resulting output:*

normal text[^6] continues

*markup example:*

normal text ~{* unnumbered asterisk footnote/endnote, insert multiple asterisks if required }~ continues

normal text ~{** another unnumbered asterisk footnote/endnote }~ continues

*resulting output:*

normal text [^*] continues

normal text [^**] continues

*markup example:*

normal text ~[* editors notes, numbered asterisk footnote/endnote series ]~ continues

normal text ~[+ editors notes, numbered plus symbol footnote/endnote series ]~ continues

*resulting output:*

normal text [^*3] continues

normal text [^+2] continues

*Alternative endnote pair notation for footnotes/endnotes:*

% note the endnote marker "~^"

normal text~^ continues

^~ endnote text following the paragraph in which the marker occurs

the standard and pair notation cannot be mixed in the same document

LINKS
.....


----------------------------------------

NAKED URLS WITHIN TEXT, DEALING WITH URLS
.........................................

urls found within text are marked up automatically. A url within text is
automatically hyperlinked to itself and by default decorated with angled
braces, unless they are contained within a code block (in which case they are
passed as normal text), or escaped by a preceding underscore (in which case the
decoration is omitted).

*markup example:*

normal text https://www.sisudoc.org/ continues

*resulting output:*

normal text <https://www.sisudoc.org/> continues

An escaped url without decoration

*markup example:*

normal text _https://www.sisudoc.org/ continues

deb _https://www.jus.uio.no/sisu/archive unstable main non-free

*resulting output:*

normal text https://www.sisudoc.org/ continues

deb https://www.jus.uio.no/sisu/archive unstable main non-free

where a code block is used there is neither decoration nor hyperlinking, code
blocks are discussed later in this document

*resulting output:*

deb https://www.jus.uio.no/sisu/archive unstable main non-free
deb-src https://www.jus.uio.no/sisu/archive unstable main non-free


----------------------------------------

LINKING TEXT
............

To link text or an image to a url the markup is as follows

*markup example:*

about { SiSU }https://url.org markup

*resulting output:*

about SiSU [link: <https://www.sisudoc.org/>] markup

A shortcut notation is available so the url link may also be provided
automatically as a footnote

*markup example:*

about {~^ SiSU }https://url.org markup

*resulting output:*

about SiSU [link: <https://www.sisudoc.org/>] [^7] markup

Internal document links to a tagged location, including an ocn

*markup example:*

about { text links }#link_text

*resulting output:*

about text links

Shared document collection link

*markup example:*

about { SiSU book markup examples }:SiSU/examples.html

*resulting output:*

about *SiSU* book markup examples


----------------------------------------

LINKING IMAGES
..............

*markup example:*

{ tux.png 64x80 }image

% various url linked images
[image: "a better way"]
 [image: "Way Better - with Gnu/Linux, Debian and Ruby"]

{~^ ruby_logo.png "Ruby" }https://www.ruby-lang.org/en/

*resulting output:*

tux.png 64x80 [link: local image]

tux.png 64x80 "Gnu/Linux - a better way" [link: <https://www.sisudoc.org/>]

GnuDebianLinuxRubyBetterWay.png 100x101 "Way Better - with Gnu/Linux, Debian
and Ruby" [link: <https://www.sisudoc.org/>]

ruby_logo.png 70x90 "Ruby" [link: <https://www.ruby-lang.org/en/>] [^8]

*linked url footnote shortcut*

{~^ [text to link] }https://url.org

% maps to: { [text to link] }https://url.org ~{ https://url.org }~

% which produces hyper-linked text within a document/paragraph, with an endnote providing the url for the text location used in the hyperlink

text marker *~name

note at a heading level the same is automatically achieved by providing names
to headings 1, 2 and 3 i.e. 2~[name] and 3~[name] or in the case of
auto-heading numbering, without further intervention.


----------------------------------------

LINK SHORTCUT FOR MULTIPLE VERSIONS OF A SISU DOCUMENT IN THE SAME DIRECTORY
TREE
..............................................................................

*markup example:*

!_ /{"Viral Spiral"}/, David Bollier

{ "Viral Spiral", David Bollier [3sS]}viral_spiral.david_bollier.sst

*/"Viral Spiral"/, David Bollier*

"Viral Spiral", David Bollier [link: <https://www.sisudoc.org/sisu/en/manifest/viral_spiral.david_bollier.manifest.html>]
      document manifest [link: <https://www.sisudoc.org/sisu/en/manifest/viral_spiral.david_bollier.manifest.html>]
      html, segmented text [link: <https://www.sisudoc.org/sisu/en/html/viral_spiral.david_bollier/viral_spiral.david_bollier.toc.html>]
      html, scroll, document in one [link: <https://www.sisudoc.org/sisu/en/html/viral_spiral.david_bollier.html>]
      epub [link: <https://www.sisudoc.org/sisu/en/epub/viral_spiral.david_bollier.epub>]
      pdf, landscape [link: <https://www.sisudoc.org/sisu/en/pdf/viral_spiral.david_bollier.landscape.a4.pdf>]
      pdf, portrait [link: <https://www.sisudoc.org/sisu/en/pdf/viral_spiral.david_bollier.landscape.a4.pdf>]
      odf: odt, open document text [link: <https://www.sisudoc.org/sisu/en/odt/viral_spiral.david_bollier.odt>]
      xhtml scroll [link: <https://www.sisudoc.org/sisu/en/xhtml/viral_spiral.david_bollier.xhtml>]
      xml, sax [link: <https://www.sisudoc.org/sisu/en/xml_sax/viral_spiral.david_bollier.sax.xml>]
      xml, dom [link: <https://www.sisudoc.org/sisu/en/xml_dom/viral_spiral.david_bollier.dom.xml>]
      concordance [link: <https://www.sisudoc.org/sisu/en/html/viral_spiral.david_bollier/concordance.html>]
      dcc, document content certificate (digests) [link: <https://www.sisudoc.org/sisu/en/digest/viral_spiral.david_bollier.hash_digest.txt>]
      markup source text [link: <https://www.sisudoc.org/sisu/en/src/viral_spiral.david_bollier.sst>]
      markup source (zipped) pod [link: <https://www.sisudoc.org/sisu/en/src/viral_spiral.david_bollier.sst.zip>]

GROUPED TEXT / BLOCKED TEXT
...........................

There are two markup syntaxes for blocked text, using curly braces or using
tics


----------------------------------------

BLOCKED TEXT CURLY BRACE SYNTAX
...............................

at the start of a line on its own use name of block type with an opening curly
brace, follow with the content of the block, and close with a closing curly
brace and the name of the block type, e.g.

code{
this is a code block

}code

poem{

this here is a poem

}poem


----------------------------------------

BLOCKED TEXT TIC SYNTAX
.......................

``` code
this is a code block

```

``` poem

this here is a poem

```

start a line with three backtics, a space followed by the name of the name of
block type, follow with the content of the block, and close with three back
ticks on a line of their own, e.g.


----------------------------------------

TABLES
......

Tables may be prepared in two either of two forms

*markup example:*

table{ c3; 40; 30; 30;

This is a table
this would become column two of row one
column three of row one is here

And here begins another row
column two of row two
column three of row two, and so on

}table

*resulting output:*

This is a table┆this would become column two of row one┆column three of row one is here』And here begins another row┆column two of row two┆column three of row two, and so on』

a second form may be easier to work with in cases where there is not much
information in each column

*markup example:*[^9]

!_ Table 3.1: Contributors to Wikipedia, January 2001 - June 2005

{table~h 24; 12; 12; 12; 12; 12; 12;}
                                |Jan. 2001|Jan. 2002|Jan. 2003|Jan. 2004|July 2004|June 2006
Contributors*                   |       10|      472|    2,188|    9,653|   25,011|   48,721
Active contributors**           |        9|      212|      846|    3,228|    8,442|   16,945
Very active contributors***     |        0|       31|      190|      692|    1,639|    3,016
No. of English language articles|       25|   16,000|  101,000|  190,000|  320,000|  630,000
No. of articles, all languages  |       25|   19,000|  138,000|  490,000|  862,000|1,600,000

- Contributed at least ten times; ** at least 5 times in last month; *** more than 100 times in last month.

*resulting output:*

*Table 3.1: Contributors to Wikipedia, January 2001 - June 2005*

┆Jan. 2001┆Jan. 2002┆Jan. 2003┆Jan. 2004┆July 2004┆June 2006』Contributors*┆10┆472┆2,188┆9,653┆25,011┆48,721』Active contributors**┆9┆212┆846┆3,228┆8,442┆16,945』Very active contributors***┆0┆31┆190┆692┆1,639┆3,016』No. of English language articles┆25┆16,000┆101,000┆190,000┆320,000┆630,000』No. of articles, all languages┆25┆19,000┆138,000┆490,000┆862,000┆1,600,000』

- Contributed at least ten times; ** at least 5 times in last month; *** more
than 100 times in last month.


----------------------------------------

POEM
....

*basic markup:*

poem{

  Your poem here

}poem

Each verse in a poem is given an object number.

*markup example:*

poem{

                    `Fury said to a
                   mouse, That he
                 met in the
               house,
            "Let us
              both go to
                law:  I will
                  prosecute
                    YOU.  --Come,
                       I'll take no
                        denial; We
                     must have a
                 trial:  For
              really this
           morning I've
          nothing
         to do."
           Said the
             mouse to the
               cur, "Such
                 a trial,
                   dear Sir,
                         With
                     no jury
                  or judge,
                would be
              wasting
             our
              breath."
               "I'll be
                 judge, I'll
                   be jury,"
                         Said
                    cunning
                      old Fury:
                     "I'll
                      try the
                         whole
                          cause,
                             and
                        condemn
                       you
                      to
                       death."'

}poem

*resulting output:*

                    `Fury said to a
                   mouse, That he
                 met in the
               house,
            "Let us
              both go to
                law:  I will
                  prosecute
                    YOU.  --Come,
                       I'll take no
                        denial; We
                     must have a
                 trial:  For
              really this
           morning I've
          nothing
         to do."
           Said the
             mouse to the
               cur, "Such
                 a trial,
                   dear Sir,
                         With
                     no jury
                  or judge,
                would be
              wasting
             our
              breath."
               "I'll be
                 judge, I'll
                   be jury,"
                         Said
                    cunning
                      old Fury:
                     "I'll
                      try the
                         whole
                          cause,
                             and
                        condemn
                       you
                      to
                       death."'


----------------------------------------

GROUP
.....

*basic markup:*

group{

  Your grouped text here

}group

A group is treated as an object and given a single object number.

*markup example:*

group{

                    `Fury said to a
                   mouse, That he
                 met in the
               house,
            "Let us
              both go to
                law:  I will
                  prosecute
                    YOU.  --Come,
                       I'll take no
                        denial; We
                     must have a
                 trial:  For
              really this
           morning I've
          nothing
         to do."
           Said the
             mouse to the
               cur, "Such
                 a trial,
                   dear Sir,
                         With
                     no jury
                  or judge,
                would be
              wasting
             our
              breath."
               "I'll be
                 judge, I'll
                   be jury,"
                         Said
                    cunning
                      old Fury:
                     "I'll
                      try the
                         whole
                          cause,
                             and
                        condemn
                       you
                      to
                       death."'

}group

*resulting output:*

                    `Fury said to a
                   mouse, That he
                 met in the
               house,
            "Let us
              both go to
                law:  I will
                  prosecute
                    YOU.  --Come,
                       I'll take no
                        denial; We
                     must have a
                 trial:  For
              really this
           morning I've
          nothing
         to do."
           Said the
             mouse to the
               cur, "Such
                 a trial,
                   dear Sir,
                         With
                     no jury
                  or judge,
                would be
              wasting
             our
              breath."
               "I'll be
                 judge, I'll
                   be jury,"
                         Said
                    cunning
                      old Fury:
                     "I'll
                      try the
                         whole
                          cause,
                             and
                        condemn
                       you
                      to
                       death."'


----------------------------------------

CODE
....

Code tags # code{ ... }code # (used as with other group tags described above)
are used to escape regular sisu markup, and have been used extensively within
this document to provide examples of *SiSU* markup. You cannot however use code
tags to escape code tags. They are however used in the same way as group or
poem tags.

A code-block is treated as an object and given a single object number. [an
option to number each line of code may be considered at some later time]

*use of code tags instead of poem compared, resulting output:*

                    `Fury said to a
                   mouse, That he
                 met in the
               house,
            "Let us
              both go to
                law:  I will
                  prosecute
                    YOU.  --Come,
                       I'll take no
                        denial; We
                     must have a
                 trial:  For
              really this
           morning I've
          nothing
         to do."
           Said the
             mouse to the
               cur, "Such
                 a trial,
                   dear Sir,
                         With
                     no jury
                  or judge,
                would be
              wasting
             our
              breath."
               "I'll be
                 judge, I'll
                   be jury,"
                         Said
                    cunning
                      old Fury:
                     "I'll
                      try the
                         whole
                          cause,
                             and
                        condemn
                       you
                      to
                       death."'

From *SiSU* 2.7.7 on you can number codeblocks by placing a hash after the
opening code tag # code{# # as demonstrated here:

1  ┆                    `Fury said to a
2  ┆                   mouse, That he
3  ┆                 met in the
4  ┆               house,
5  ┆            "Let us
6  ┆              both go to
7  ┆                law:  I will
8  ┆                  prosecute
9  ┆                    YOU.  --Come,
10 ┆                       I'll take no
11 ┆                        denial; We
12 ┆                     must have a
13 ┆                 trial:  For
14 ┆              really this
15 ┆           morning I've
16 ┆          nothing
17 ┆         to do."
18 ┆           Said the
19 ┆             mouse to the
20 ┆               cur, "Such
21 ┆                 a trial,
22 ┆                   dear Sir,
23 ┆                         With
24 ┆                     no jury
25 ┆                  or judge,
26 ┆                would be
27 ┆              wasting
28 ┆             our
29 ┆              breath."
30 ┆               "I'll be
31 ┆                 judge, I'll
32 ┆                   be jury,"
33 ┆                         Said
34 ┆                    cunning
35 ┆                      old Fury:
36 ┆                     "I'll
37 ┆                      try the
38 ┆                         whole
39 ┆                          cause,
40 ┆                             and
41 ┆                        condemn
42 ┆                       you
43 ┆                      to
44 ┆                       death."'

ADDITIONAL BREAKS - LINEBREAKS WITHIN OBJECTS, COLUMN AND PAGE-BREAKS
.....................................................................


----------------------------------------

LINE-BREAKS
...........

To break a line within a "paragraph object", two backslashes \\
with a space before and a space or newline after them
may be used.

To break a line within a "paragraph object",
two backslashes \\ with a space before
and a space or newline after them \\
may be used.

The html break br enclosed in angle brackets (though undocumented) is available
in versions prior to 3.0.13 and 2.9.7 (it remains available for the time being,
but is depreciated).

To draw a dividing line dividing paragraphs, see the section on page breaks.


----------------------------------------

PAGE BREAKS
...........

Page breaks are only relevant and honored in some output formats. A page break
or a new page may be inserted manually using the following markup on a line on
its own:

page new =\= breaks the page, starts a new page.

page break -\- breaks a column, starts a new column, if using columns, else
breaks the page, starts a new page.

page break line across page -..- draws a dividing line, dividing paragraphs

page break:

-\\-

page (break) new:

=\\=

page (break) line across page (dividing paragraphs):

-..-

BIBLIOGRAPHY / REFERENCES
.........................

There are three ways to prepare a bibliography using sisu (which are mutually
exclusive): (i) manually preparing and marking up as regular text in sisu a
list of references, this is treated as a regular document segment (and placed
before endnotes if any); (ii) preparing a bibliography, marking a heading level
1~!biblio (note the exclamation mark) and preparing a bibliography using
various metadata tags including for author: title: year: a list of which is
provided below, or; (iii) as an assistance in preparing a bibliography, marking
a heading level 1~!biblio and tagging citations within footnotes for inclusion,
identifying citations and having a parser attempt to extract them and build a
bibliography of the citations provided.

For the heading/section sequence: endnotes, bibliography then book index to
occur, the name biblio or bibliography must be given to the bibliography
section, like so:

1~!biblio


----------------------------------------

A MARKUP TAGGED METADATA BIBLIOGRAPHY SECTION
.............................................

Here instead of writing your full citations directly in footnotes, each time
you have new material to cite, you add it to your bibliography section (if it
has not been added yet) providing the information you need against an available
list of tags (provided below).

The required tags are au: ti: and year: [^10] an short quick example might be
as follows:

1~!biblio

au: von Hippel, E.
ti: Perspective: User Toolkits for Innovation
lng: (language)
jo: Journal of Product Innovation Management
vo: 18
ed: (editor)
yr: 2001
note:
sn: Hippel, /{User Toolkits}/ (2001)
id: vHippel_2001
% form:

au: Benkler, Yochai
ti: The Wealth of Networks
st: How Social Production Transforms Markets and Freedom
lng: (language)
pb: Harvard University Press
edn: (edition)
yr: 2006
pl: U.S.
url: https://cyber.law.harvard.edu/wealth_of_networks/Main_Page
note:
sn: Benkler, /{Wealth of Networks}/ (2006)
id: Benkler2006

au: Quixote, Don; Panza, Sancho
ti: Taming Windmills, Keeping True
jo: Imaginary Journal
yr: 1605
url: https://en.wikipedia.org/wiki/Don_Quixote
note: made up to provide an example of author markup for an article with two authors
sn: Quixote & Panza, /{Taming Windmills}/ (1605)
id: quixote1605

Note that the section name !biblio (or !bibliography) is required for the
bibliography to be treated specially as such, and placed after the
auto-generated endnote section.

Using this method, work goes into preparing the bibliography, the tags author
or editor, year and title are required and will be used to sort the
bibliography that is placed under the Bibliography section

The metadata tags may include shortname (sn:) and id, if provided, which are
used for substitution within text. Every time the given id is found within the
text it will be replaced by the given short title of the work (it is for this
reason the short title has sisu markup to italicize the title), it should work
with any page numbers to be added, the short title should be one that can
easily be used to look up the full description in the bibliography.

The following footnote~{ quixote1605, pp 1000 - 1001, also Benkler2006 p 1. }~

would be presented as:

Quixote and Panza, /Taming Windmills/ (1605), pp 1000 - 1001 also, Benkler,
/Wealth of Networks/, (2006) p 1 or rather[^11]

au: author Surname, FirstNames (if multiple semi-colon separator)
    (required unless editor to be used instead)
ti: title  (required)
st: subtitle
jo: journal
vo: volume
ed: editor (required if author not provided)
tr: translator
src: source (generic field where others are not appropriate)
in: in (like src)
pl: place/location (state, country)
pb: publisher
edn: edition
yr: year (yyyy or yyyy-mm or yyyy-mm-dd) (required)
pg: pages
url: https://url
note: note
id: create_short_identifier e.g. authorSurnameYear
    (used in substitutions: when found within text will be
    replaced by the short name provided)
sn: short name e.g. Author, /{short title}/, Year
    (used in substitutions: when an id is found within text
    the short name will be used to replace it)


----------------------------------------

TAGGING CITATIONS FOR INCLUSION IN THE BIBLIOGRAPHY
...................................................

Here whenever you make a citation that you wish be included in the
bibliography, you tag the citation as such using special delimiters (which are
subsequently removed from the final text produced by sisu)

Here you would write something like the following, either in regular text or a
footnote

See .: Quixote, Don; Panza, Sancho /{Taming Windmills, Keeping True}/ (1605) :.

*SiSU* will parse for a number of patterns within the delimiters to try make
out the authors, title, date etc. and from that create a Bibliography. This is
more limited than the previously described method of preparing a tagged
bibliography, and using an id within text to identify the work, which also
lends itself to greater consistency.

GLOSSARY
........

Using the section name 1~!glossary results in the Glossary being treated
specially as such, and placed after the auto-generated endnote section (before
the bibliography/list of references if there is one).

The Glossary is ordinary text marked up in a manner deemed suitable for that
purpose. e.g. with the term in bold, possibly with a hanging indent.

1~!glossary

_0_1 *{GPL}* An abbreviation that stands for "General Purpose License." ...

_0_1 [provide your list of terms and definitions]

In the given example the first line is not indented subsequent lines are by one
level, and the term to be defined is in bold text.

BOOK INDEX
..........

To make an index append to paragraph the book index term relates to it, using
an equal sign and curly braces.

Currently two levels are provided, a main term and if needed a sub-term.
Sub-terms are separated from the main term by a colon.

  Paragraph containing main term and sub-term.
  ={Main term:sub-term}

The index syntax starts on a new line, but there should not be an empty line
between paragraph and index markup.

The structure of the resulting index would be:

  Main term, 1
    sub-term, 1

Several terms may relate to a paragraph, they are separated by a semicolon. If
the term refers to more than one paragraph, indicate the number of paragraphs.

  Paragraph containing main term, second term and sub-term.
  ={first term; second term: sub-term}

The structure of the resulting index would be:

  First term, 1,
  Second term, 1,
    sub-term, 1

If multiple sub-terms appear under one paragraph, they are separated under the
main term heading from each other by a pipe symbol.

  Paragraph containing main term, second term and sub-term.
  ={Main term:
      sub-term+2|second sub-term;
    Another term
   }

  A paragraph that continues discussion of the first sub-term

The plus one in the example provided indicates the first sub-term spans one
additional paragraph. The logical structure of the resulting index would be:

  Main term, 1,
    sub-term, 1-3,
    second sub-term, 1,
  Another term, 1

COMPOSITE DOCUMENTS MARKUP
--------------------------

It is possible to build a document by creating a master document that requires
other documents. The documents required may be complete documents that could be
generated independently, or they could be markup snippets, prepared so as to be
easily available to be placed within another text. If the calling document is a
master document (built from other documents), it should be named with the
suffix *.ssm* Within this document you would provide information on the other
documents that should be included within the text. These may be other documents
that would be processed in a regular way, or markup bits prepared only for
inclusion within a master document *.sst* regular markup file, or *.ssi*
(insert/information) A secondary file of the composite document is built prior
to processing with the same prefix and the suffix *._sst*

basic markup for importing a document into a master document

<< filename1.sst

<< filename2.ssi

The form described above should be relied on. Within the /Vim/ editor it
results in the text thus linked becoming hyperlinked to the document it is
calling in which is convenient for editing.

SUBSTITUTIONS
-------------

*markup example:*

The current Debian is ${debian_stable} the next debian will be ${debian_testing}

Configure substitution in _sisu/sisu_document_make

@make:
:substitute: /${debian_stable}/,'*{Wheezy}*' /${debian_testing}/,'*{Jessie}*'

*resulting output:*

The current *Debian* is *Jessie* the next debian will be *Stretch*

Configure substitution in _sisu/sisu_document_make


----------------------------------------

 [1]: <https://packages.qa.debian.org/s/sisu.html>

 [2]: from the *Debian* control file

 [*1]: square brackets

 [*2]: square brackets

 [+1]: square brackets

 [3]: From sometime after SiSU 0.58 it should be possible to describe SiSU markup
 using SiSU, which though not an original design goal is useful.

 [4]: files should be prepared using /UTF-8/ character encoding

 [5]: a footnote or endnote

 [6]: self contained endnote marker & endnote in one

 [*]: unnumbered asterisk footnote/endnote, insert multiple asterisks if required

 [**]: another unnumbered asterisk footnote/endnote

 [*3]: editors notes, numbered asterisk footnote/endnote series

 [+2]: editors notes, numbered plus symbol footnote/endnote series

 [7]: <https://www.sisudoc.org/>

 [8]: <https://www.ruby-lang.org/en/>

 [9]: Table from the Wealth of Networks by Yochai Benkler

 <https://sisudoc.org/spine/en/html/the_wealth_of_networks.yochai_benkler/toc.html>

 [10]: for which you may alternatively use the full form author: title: and year:

 [11]: Quixote and Panza, /Taming Windmills/ (1605), pp 1000 - 1001 also, Benkler,
 /Wealth of Networks/ (2006), p 1
 #+END_SRC

** a description

(emacs:evil mode gifts a "vim" of enticing "alternative" powers! ;)
(vim, my _editor_ of choice also in the emacs environment :)

*** What is SiSU?

  Multiple output formats with a nod to the strengths of each output format and
  the ability to cite text easily across output formats.

**** debian/control desc

  documents - structuring, publishing in multiple formats and search
   SiSU is a lightweight markup based, command line oriented, document
   structuring, publishing and search, static content tool for document
   collections.
   .
   With minimal preparation of a plain-text (UTF-8) file, using sisu markup syntax
   in your text editor of choice, SiSU can generate various document formats, most
   of which share a common object numbering system for locating content, including
   plain text, HTML, XHTML, XML, EPUB, OpenDocument text (ODF:ODT), LaTeX, PDF
   files, and populate an SQL database with objects (roughly paragraph-sized
   chunks) so searches may be performed and matches returned with that degree of
   granularity. Think of being able to finely match text in documents, using
   common object numbers, across different output formats and across languages if
   you have translations of the same document.  For search, your criteria is met
   by these documents at these locations within each document (equally relevant
   across different output formats and languages). To be clear (if obvious) page
   numbers provide none of this functionality. Object numbering is particularly
   suitable for "published" works (finalized texts as opposed to works that are
   frequently changed or updated) for which it provides a fixed means of reference
   of content. Document outputs can also share provided semantic meta-data.
   .
   SiSU also provides concordance files, document content certificates and
   manifests of generated output and the means to make book indexes that make use
   of its object numbering.
   .
   Syntax highlighting and folding (outlining) files are provided for the Vim and
   Emacs editors.
   .
   Dependencies for various features are taken care of in sisu related packages.
   The package sisu-complete installs the whole of SiSU.
   .
   Additional document markup samples are provided in the package
   sisu-markup-samples which is found in the non-free archive. The licenses for
   the substantive content of the marked up documents provided is that provided
   by the author or original publisher.
   .
   SiSU uses utf-8 & parses left to right. Currently supported languages:
   am bg bn br ca cs cy da de el en eo es et eu fi fr ga gl he hi hr hy ia is it
   ja ko la lo lt lv ml mr nl nn no oc pl pt pt_BR ro ru sa se sk sl sq sr sv ta
   te th tk tr uk ur us vi zh (see XeTeX polyglossia & cjk)
   .
   SiSU works well under po4a translation management, for which an administrative
   sample Rakefile is provided with sisu_manual under markup-samples.

**** take two

  SiSU may be regarded as an open access document publishing platform, applicable
  to a modest but substantial domain of documents (typically law and literature,
  but also some forms of technical writing), that is tasked to address certain
  challenges I identified as being of interest to me over the years in open
  publishing.

  The idea and implementation may be of interest to consider as some of the
  issues encountered and that it seeks to address are known and common to such
  endeavors. Amongst them:

   * how do you ensure what you do now can be read in decades?
   * how do you keep up with new changing and technologies?
   * do you select a canonical format to represent your documents, if so
     what?
   * how do you reliably cite (locate) material in different document
     representations?
   * how do you deal with multilingual texts?
   * what of search?
   * how are documents contributed to the collection?

  (these questions are selected in to help describe the direction of efforts with
  regard to sisu).

  My Dabblings in the Domain of Open Publishing
  ---------------------------------------------

  The system is called SiSU, it is an offshoot of my early efforts at finding out
  what to make of the web, that started at the University of Tromsø in 1993 (an
  early law website Ananse/ International Trade Law Project / Lex Mercatoria). I
  have worked on SiSU continually since 1997 and it has been open source in 2005
  (under a license called GPL3+), though I remain its developer.

  In working in this field I have had to address some of the common issues.

  So how do you ensure what you do now can be read in decades to come? There are
  alternative solutions. (i) stick with a widely used and not overly complicated
  well document open standard, and for that the likes of odf is an excellent
  choice (ii) alternatively go for the most basic representation of a document
  that meets your needs, in my case based on UTF-8 text and some markup tags,
  fairly easily parsable by the human eye and as long as utf8 is in use it will
  always be possible to extract the information

  How do you keep up with new changing and technologies? Here my solution has
  been to generate new versions of the substantive content so as to always have
  the latest document representations available e.g. HTML has changed a lot over
  the years, different specifications come out for various formats including ODF,
  electronic readers have become an important viewing alternative, introducing
  the open reader format EPUB. Output representations are generated from source
  documents.  Different open document file formats can be produced and databases
  and search engines populated. (The source documents and interpreter are all
  that are required to re-create site content. Source documents can be made
  public or retained privately). The strict separation of a simple source
  document from the output produced, means that with updates to SiSU (the
  interpreter/processor/generator), outputs can be updated technically as
  necessary, and new output formats added when needed. Amongst the output formats
  currently supported are HTML, LaTeX generated Pdfs (A4, letter, other;
  landscape, portrait), Epub, Open Document Format text. Returning to HTML as an
  example, it has changed a lot over the years I have worked with it, this way of
  working has meant it is possible to keep producing current versions of HTML,
  retaining the original substantive document... and new formats have been added
  as thought desired. There is no attempt to make output in different document
  formats/ representations look alike let alone identical. Rather the attempt is
  to optimize output for the particular document filetype, (there is no reason
  why an epub document would look or behave like an open document text or that a
  Pdf would look like HTML output; rather PDF is optimized for paper viewing,
  HTML for screen etc.)  Wherever possible features associated with the
  particular output type are taken advantage of. This freedom is made possible to
  a large extent by the answer to the question that follows.

  How do you reliably cite (locate) material in different document
  representations? The traditional answer has been to have a canonical
  publication, and resulting fixed page numbers. This was not a viable solution
  for HTML (which changes from one viewer to another and with selectable font
  faces & size etc.); nor is it otherwise ideal in an electronic age with the
  possibility of presenting/interacting with material/documents in so many
  different ways. Why be so restricted? Here my solution has been "object
  citation numbering".  What the various generated document formats have in
  common is a shared object numbering system that identifies the location of text
  and that is available for citation purposes. Object numbers are: sequential
  numbers assigned to each identified object in a document. Objects are logical
  units of text (or equivalent parts of a document), usually paragraphs, but also
  document headings, tables, images, in a poem a verse etc.  [In an electronic
  publishing age are page numbers the best we can come up with?  Change font
  type, font size, page orientation, paper size (sometimes even the viewer) and
  where are you with them? And paper though a favorite medium of mine is no
  longer the sole (or sometimes primary) means of interacting with documents/text
  or of sharing knowledge]

  What object numbers mean (unlike page numbers) is e.g.

   * if you cite text in any format, the resulting output can be reliably located
     in any other document format type. Cite HTML and the reader can choose to
     view in Epub or Pdf (the PDFs being an independent output, generated by
     book publishing software XeTeX/LaTeX).

   * if you do a search, you can be given a result "index" indicating that your
     search criteria is met by these documents, and at these specific locations
     within each document, and the "index" is relevant not only for content
     within the database, but for all document formats.

   * if you have a translated text prepared for sisu, then your citations are
     relevant across languages e.g. you can specify exactly where in a Chinese
     document text is to be found.

   * generated document index references & concordance list references etc. are
     relevant across all output formats.

  What of search? For search, see the implications of object numbers for search
  mentioned above. The system currently loads an SQL server (Postgresql) with
  object sized text chunks. It could just as well populate an analytical engine
  with larger sections or chapters of text for analytical purposes (such as the
  currently popular Elasticsearch), whilst availing itself also of the concept of
  objects and object numbers in search results.

  How do you deal with multilingual texts? If you have translated text prepared
  for sisu, then your citations are relevant across languages.  Object numbers
  also provide an easy way to compare, discuss text (translations) across
  languages. Text found/cited in one language has the same object number in its
  translations, a given paragraph will be the same in another language, just
  change the language code. (documents are prepared in UTF-8, current language
  restrictions are: through use of LaTeX tools, Polyglosia & CJK (Chinese,
  Japanese & Korean), and from the fact that sisu parses left to right)

  How are materials prepared for contribution to the collection? (a) The easiest
  solution if the system allows is for submission in the format in which work is
  authored, usually a word processor, for which odf may be a decent selection.
  (b) I have stuck with enhanced plaintext, UTF-8 with minimal markup.  Source
  documents are prepared in UTF-8 text, with a minimalist native markup to
  indicate the document structure (headings and their relative levels),
  footnotes, and other document "features". This markup is easily parsable to the
  human eye, and plays well with version control systems. Documents are prepared
  in a text editor. Front ends such as markup assistants in a word processor that
  can save to sisu text format or other tool whist possible do not exist. [(c)
  yet another form of submission for collaborative work are wikis which have
  shown their strength in efforts such as Wikipedia.]

  The system has proven to be a good testing ground for ideas and is flexible and
  extensible. (things that could usefully be done: apart from a front end for
  simpler user interaction; feed text to an analytical search engine, like
  Elasticsearch/Lucene; it still needs a bibliography parser (auto-generation of
  a bibliography from footnotes); and it might be useful to allow rough auto
  translation documents on the fly by passing text through a translator (such as
  Google translate)).

  In any event, my resulting technical opinions (in my modest domain of
  action) may be regarded as encapsulated within SiSU
  [https://www.sisudoc.org/]

  https://www.sisudoc.org/

  git clone git://git.sisudoc.org/software/sisu --branch upstream
  https://git.sisudoc.org/sisu/
  (there may be additional commits in the upstream branch)
  git clone --depth 1 git://git.sisudoc.org/git/code/sisu.git --branch upstream

  git clone git://git.sisudoc.org/git/doc/sisu-markup-samples.git --branch upstream
  git clone --depth 1 git://git.sisudoc.org/git/doc/sisu-markup-samples.git --branch upstream
  Development work is on Linux and the easiest way to install it is through the
  Debian Linux package as this takes care of optional external dependencies such
  as XeTeX for PDF output and Postgresql or Sqlite for search.

**** multiple document formats

  Text can be represented in multiple output formats with different
  characteristics that are (or may be) regarded as strengths/advantages and
  therefore preferred in different contexts.

  Given the different strengths and characteristics of various output formats, it
  makes little sense to try too hard to make different representations of a
  document look the same. More interesting is have document representations that
  take advantage of each given outputs strengths. As valuable if not more so is
  the ability to cite, find, discuss text with ease, across the different output
  formats.

  For citation across output formats, SiSU uses object citation numbers.

**** document structure and document objects

  SiSU breaks marked up text into document structure and objects

  Document structure being the document heading hierarchy (having separated out
  the document header).

***** What are document objects?
  An object is an identified meaningful unit of a document, most commonly a
  paragraph of text, but also for example a table, code block, verse or image.

  SiSU tracks these substantive document units as document objects (and their
  relationship to the document structure).

**** object citation numbers

***** What are object citation numbers?

  An object citation number is a sequential number assigned to a document object.

  In sisu output documents share this common object numbering system (dubbed
  "object citation numbering" (ocn)) that is meaningful (machine & human readable)
  across various digital outputs whether paper, screen, or database oriented,
  (PDF, html, XML, EPUB, sqlite, postgresql), and across multilingual content if
  prepared appropriately. This numbering system can be used to reference content
  across output types.

***** Why might I want object citation numbering?

  The ability to cite and quickly locate text can be invaluable if not essential.
   (whether for instruction or discussion).

  In this digital & Internet age we have multiple ways to represent documents and
  multiple document output formats as options with different characteristics,
  strengths/advantages etc. We need a way to cite text that works and is relevant
  independent of the document format used.

  I want to discuss (cite) html text how do I do this?
  how do I refer to / cite / discuss text in html?
  Issue: html may be viewed online or printed, it is not tied to paper (as
  e.g. pdf) and prints differently depending on selected font face and font size.

  I want to discuss (cite) text that is available in multiple formats (e.g. pdf,
  epub, html) without having to worry about the output format that is referred
  to.
  How do I refer to / discuss text that is available in more than one format,
  uncertain of what format is preferred, used or available to my colleagues?
  e.g. html and epub or pdf have rather different text representations, how do I
  discuss ...

  I would like to have a book index that is relevant (can be used) across multiple
  output formats (e.g. pdf, epub, html)

  How do I make a book index (or a concordance file) that works across multiple
  output formats?

  I would like to have search results indicating where in a document matches are
  found and I would like it to be relevant across available output formats (e.g.
  pdf, epub, html)
  How do I get search results for locations of text within each relevant document

  I would like to be able to discuss a text that has been translated ...
  how do I find text across languages?
  Where I have a nicely translated document, how do I point to or discuss with my
  foreign language counterpart some detail of the text, or, how do I point my
  foreign language counterpart to the text I would like to bring to his
  attention.

**** "Granular" Search

  Of interest is the ease of streaming documents to a relational database, at an
  object (roughly paragraph) level and the potential for increased precision in
  the presentation of matches that results thereby. The ability to serialize
  html, LaTeX, XML, SQL, (whatever) is also inherent in / incidental to the
  design.

**** Summary
  SiSU information Structuring Universe
  Structured information, Serialized Units    <www.sisudoc.org>   or
  <git.sisudoc.org/> software for electronic texts, document collections,
  books, digital libraries, and search, with "atomic search" and text positioning
  system (shared text citation numbering: "ocn")
  outputs include: plaintext, html, XHTML, XML, ODF (OpenDocument), EPUB, LaTeX,
  PDF, SQL (PostgreSQL and SQLite)

**** SiSU Short Description

  SiSU is a comprehensive future-resilient electronic document management system.
  Built-in search capabilities allow you to search across multiple documents and
  highlight matches in an easy-to-follow format. Paragraph numbering system
  allows you to cite your electronic documents in a consistent manner across
  multiple file formats. Multiple format outputs allow you to display your
  documents in plain text, PDF (portrait and horizontal), OpenDocument format,
  HTML, or e-book reading format (EPUB). Word mapping allows you to easily create
  word indexes for your documents. Future-resilient flexibility allows you to
  quickly adapt your documents to newer output formats as needed. All these and
  many other features are achieved with little or no additional work on your
  documents - by marking up the documents with a super simplistic markup
  language, leaving the SiSU engine to handle the heavy-lifting processing.

  Potential users of SiSU include individual authors who want to publish their
  books or articles electronically to reach a broad audience, web publishers who
  want to provide multiple channels of access to their electronic documents, or
  any organizations which centrally manage a medium or large set of electronic
  documents, especially governmental organizations which may prefer to keep their
  documents in easily accessible yet non-proprietary formats.

  SiSU is an Open Source project initiated and led by Ralph Amissah
  <ralph.amissah@gmail.com> and can be contacted via mailing list
  <https://lists.sisudoc.org/listinfo/sisu> at <sisu@lists.sisudoc.org>. SiSU is
  licensed under the GNU General Public License.

***** notes

  For less markup than the most elementary HTML you can have more.  SiSU -
  Structured information, Serialized Units for electronic documents, is an
  information structuring, transforming, publishing and search framework with the
  following features:

  (i) markup syntax: (a) simpler than html, (b) mnemonic, influenced by
  mail/messaging/wiki markup practices, (c) human readable, and easily writable,

  (ii) (a) minimal markup requirement, (b) single file marked up for multiple outputs,

   * documents are prepared in a single UTF-8 file using a minimalistic mnemonic
  syntax. Typical literature, documents like "War and Peace" require almost no
  markup, and most of the headers are optional.

   * markup is easily readable/parsed by the human eye, (basic markup is simpler
  and more sparse than the most basic html), [this may also be converted to XML
  representations of the same input/source document].

   * markup defines document structure (this may be done once in a header
  pattern-match description, or for heading levels individually); basic text
  attributes (bold, italics, underscore, strike-through etc.) as required; and
  semantic information related to the document (header information, extended
  beyond the Dublin core and easily further extended as required); the headers
  may also contain processing instructions.

  (iii) (a) multiple output formats, including amongst others: plaintext (UTF-8);
  html; (structured) XML; ODF (Open Document text); EPUB; LaTeX; PDF (via LaTeX);
  SQL type databases (currently PostgreSQL and SQLite). SiSU produces:
  concordance files; document content certificates (md5 or sha256 digests of
  headings, paragraphs, images etc.) and html manifests (and sitemaps of
  content). (b) takes advantage of the strengths implicit in these very different
  output types, (e.g. PDFs produced using typesetting of LaTeX, databases
  populated with documents at an individual object/paragraph level, making
  possible granular search (and related possibilities))

  (iv) outputs share a common numbering system (dubbed "object citation
  numbering" (ocn)) that is meaningful (to man and machine) across various
  digital outputs whether paper, screen, or database oriented, (PDF, html, XML,
  EPUB, sqlite, postgresql), this numbering system can be used to reference
  content.

  (v) SQL databases are populated at an object level (roughly headings,
  paragraphs, verse, tables) and become searchable with that degree of
  granularity, the output information provides the object/paragraph numbers which
  are relevant across all generated outputs; it is also possible to look at just
  the matching paragraphs of the documents in the database; [output indexing also
  work well with search indexing tools like hyperesteier].

  (vi) use of semantic meta-tags in headers permit the addition of semantic
  information on documents, (the available fields are easily extended)

  (vii) creates organised directory/file structure for (file-system) output,
  easily mapped with its clearly defined structure, with all text objects
  numbered, you know in advance where in each document output type, a bit of text
  will be found (e.g. from an SQL search, you know where to go to find the
  prepared html output or PDF etc.)... there is more; easy directory management
  and document associations, the document preparation (sub-)directory may be used
  to determine output (sub-)directory, the skin used, and the SQL database used,

  (viii) "Concordance file" wordmap, consisting of all the words in a document
  and their (text/ object) locations within the text, (and the possibility of
  adding vocabularies),

  (ix) document content certification and comparison considerations: (a) the
  document and each object within it stamped with an sha256 hash making it
  possible to easily check or guarantee that the substantive content of a document
  is unchanged, (b) version control, documents integrated with time based source
  control system, default RCS or CVS with use of $Id$ tag, which SiSU checks

  (x) SiSU's minimalist markup makes for meaningful "diffing" of the substantive
  content of markup-files,

  (xi) easily skinnable, document appearance on a project/site wide, directory
  wide, or document instance level easily controlled/changed,

  (xii) in many cases a regular expression may be used (once in the document
  header) to define all or part of a documents structure obviating or reducing
  the need to provide structural markup within the document,

  (xiii) prepared files may be batch process, documents produced are static files
  so this needs to be done only once but may be repeated for various reasons as
  desired (updated content, addition of new output formats, updated technology
  document presentations/representations)

  (xiv) possible to pre-process, which permits: the easy creation of standard
  form documents, and templates/term-sheets, or; building of composite documents
  (master documents) from other sisu marked up documents, or marked up parts,
  i.e. import documents or parts of text into a main document should this be
  desired

  there is a considerable degree of future-resilience, output representations are
  "upgradeable", and new document formats may be added.

  (xv) there is a considerable degree of future-resilience, output representations
  are "upgradeable", and new document formats may be added: (a) modular, (thanks
  in no small part to Ruby) another output format required, write another
  module.... (b) easy to update output formats (eg html, XHTML, LaTeX/PDF
  produced can be updated in program and run against whole document set), (c)
  easy to add, modify, or have alternative syntax rules for input, should you
  need to,

  (xvi) scalability, dependent on your file-system (ext3, Reiserfs, XFS,
  whatever) and on the relational database used (currently Postgresql and
  SQLite), and your hardware,

  (xvii) only marked up files need be backed up, to secure the larger document
  set produced,

  (xviii) document management,

  (xix) Syntax highlighting for SiSU markup is available for a number of text
  editors.

  (xx) remote operations: (a) run SiSU on a remote server, (having prepared sisu
  markup documents locally or on that server, i.e. this solution where sisu is
  installed on the remote server, would work whatever type of machine you chose
  to prepare your markup documents on), (b) generated document outputs may be
  posted by sisu to remote sites (using rsync/scp) (c) document source (plaintext
  utf-8) if shared on the net may be identified by its url and processed locally
  to produce the different document outputs.

  (xxi) document source may be bundled together (automatically) with associated
  documents (multiple language versions or master document with inclusions) and
  images and sent as a zip file called a sisupod, if shared on the net these too
  may be processed locally to produce the desired document outputs, these may be
  downloaded, shared as email attachments, or processed by running sisu against
  them, either using a url or the filename.

  (xxii) for basic document generation, the only software dependency is Ruby, and
  a few standard Unix tools (this covers plaintext, html, XML, ODF, EPUB, LaTeX).
  To use a database you of course need that, and to convert the LaTeX generated
  to PDF, a LaTeX processor like tetex or texlive.

  as a developers tool it is flexible and extensible

**** description

  SiSU ("SiSU information Structuring Universe" or "Structured information,
  Serialized Units"),1 is a Unix command line oriented framework for document
  structuring, publishing and search. Featuring minimalistic markup, multiple
  standard outputs, a common citation system, and granular search.  Using markup
  applied to a document, SiSU can produce plain text, HTML, XHTML, XML,
  OpenDocument, LaTeX or PDF files, and populate an SQL database with objects2
  (equating generally to paragraph-sized chunks) so searches may be performed and
  matches returned with that degree of granularity (e.g. your search criteria is
  met by these documents and at these locations within each document). Document
  output formats share a common object numbering system for locating content.
  This is particularly suitable for "published" works (finalized texts as opposed
  to works that are frequently changed or updated) for which it provides a fixed
  means of reference of content.  How it works

  SiSU markup is fairly minimalistic, it consists of: a (largely optional)
  document header, made up of information about the document (such as when it was
  published, who authored it, and granting what rights) and any processing
  instructions; and markup within text which is related to document structure and
  typeface. SiSU must be able to discern the structure of a document, (text
  headings and their levels in relation to each other), either from information
  provided in the instruction header or from markup within the text (or from a
  combination of both). Processing is done against an abstraction of the document
  comprising of information on the document's structure and its objects,2 which
  the program serializes (providing the object numbers) and which are assigned
  hash sum values based on their content. This abstraction of information about
  document structure, objects, (and hash sums), provides considerable flexibility
  in representing documents different ways and for different purposes (e.g.
  search, document layout, publishing, content certification, concordance etc.),
  and makes it possible to take advantage of some of the strengths of established
  ways of representing documents, (or indeed to create new ones).

  1. also chosen for the meaning of the Finnish term "sisu".

  2 objects include: headings, paragraphs, verse, tables, images, but not
  footnotes/endnotes which are numbered separately and tied to the object from
  which they are referenced.

  More information on SiSU provided at: <www.sisudoc.org/sisu/SiSU>

  SiSU was developed in relation to legal documents, and is strong across a wide
  variety of texts (law, literature...(humanities, law and part of the social
  sciences)). SiSU handles images but is not suitable for formulae/ statistics,
  or for technical writing at this time.

  SiSU has been developed and has been in use for several years. Requirements to
  cover a wide range of documents within its use domain have been explored.

  <ralph@amissah.com>
  <ralph.amissah@gmail.com>
  <sisu@lists.sisudoc.org>
  <https://lists.sisudoc.org/listinfo/sisu>
  2010
  w3 since October 3 1993
*** Finding SiSU
**** source
  https://git.sisudoc.org/sisu/

***** sisu
  sisu git repo:
  https://git.sisudoc.org/sisu/

****** most recent source without repo history
  git clone --depth 1 git://git.sisudoc.org/software/sisu --branch upstream
****** full clone
  git clone git://git.sisudoc.org/software/sisu --branch upstream

***** sisu-markup-samples git repo:
  https://git.sisudoc.org/sisu-markup

**** mailing list
  sisu at lists.sisudoc.org
  https://lists.sisudoc.org/listinfo/sisu

**** irc oftc #sisu

**** home pages
    <https://www.sisudoc.org/>

*** Installation

**** where you take responsibility for having the correct dependencies

  Provided you have *Ruby*, *SiSU* can be run.

  SiSU should be run from the directory containing your sisu marked up document
  set.

  This works fine so long as you already have sisu external dependencies in
  place. For many operations such as html, epub, odt this is likely to be fine.
  Note however, that additional external package dependencies, such as texlive
  (for pdfs), sqlite3 or postgresql (for search) should you desire to use them
  are not taken care of for you.

***** run off the source tarball without installation

  RUN OFF SOURCE PACKAGE DIRECTORY TREE (WITHOUT INSTALLING)
  ..........................................................

****** 1. Obtain the latest sisu source

  using git:

  https://git.sisudoc.org/sisu/

    git clone git://git.sisudoc.org/software/sisu --branch upstream
    git clone --depth 1 git://git.sisudoc.org/software/sisu --branch upstream

  or, identify latest available source:

  https://packages.debian.org/sid/sisu
  https://packages.qa.debian.org/s/sisu.html
  https://qa.debian.org/developer.php?login=sisu@lists.sisudoc.org

  https://sisudoc.org/sisu/archive/pool/main/s/sisu/

  and download the:

    sisu_5.4.5.orig.tar.xz

  using debian tool dget:

  The dget tool is included within the devscripts package
  https://packages.debian.org/search?keywords=devscripts
  to install dget install devscripts:

    apt-get install devscripts

  and then you can get it from Debian:
    dget -xu https://ftp.fi.debian.org/debian/pool/main/s/sisu/sisu_5.4.5-1.dsc

  or off sisu repos
    dget -x https://www.jus.uio.no/sisu/archive/pool/main/s/sisu/sisu_5.4.5-1.dsc
  or
    dget -x https://sisudoc.org/sisu/archive/pool/main/s/sisu/sisu_5.4.5-1.dsc

****** 2. Unpack the source

  Provided you have *Ruby*, *SiSU* can be run without installation straight from
  the source package directory tree.

  Run ruby against the full path to bin/sisu (in the unzipped source package
  directory tree). SiSU should be run from the directory containing your sisu
  marked up document set.

    ruby ~/sisu-5.4.5/bin/sisu --html -v document_name.sst

  This works fine so long as you already have sisu external dependencies in
  place. For many operations such as html, epub, odt this is likely to be fine.
  Note however, that additional external package dependencies, such as texlive
  (for pdfs), sqlite3 or postgresql (for search) should you desire to use them
  are not taken care of for you.

***** gem install (with rake)

  (i) create the gemspec; (ii) build the gem (from the gemspec); (iii) install
  the gem

  Provided you have ruby & rake, this can be done with the single command:

    rake gem_create_build_install

  to build and install sisu v5 & sisu v6, alias gemcbi

  separate gems are made/installed for sisu v5 & sisu v6 contained in source.

  to build and install sisu v5, alias gem5cbi:

    rake gem_create_build_install_stable

  to build and install sisu v6, alias gem6cbi:

    rake gem_create_build_install_unstable

  for individual steps (create, build, install) see rake options, rake -T to
  specify sisu version for sisu installed via gem

    gem search sisu

    sisu _5.4.5_ --version

    sisu _6.0.11_ --version

  to uninstall sisu installed via gem

    sudo gem uninstall --verbose sisu

  For a list of alternative actions you may type:

    rake help

    rake -T

  Rake: <https://rake.rubyforge.org/> <https://rubyforge.org/frs/?group_id=50>

***** installation with setup.rb

  this is a three step process, in the root directory of the unpacked *SiSU* as
  root type:

  ruby setup.rb config
  ruby setup.rb setup
  #[as root:]
  ruby setup.rb install

  further information:
  <https://i.loveruby.net/en/projects/setup/>
  <https://i.loveruby.net/en/projects/setup/doc/usage.html>

    ruby setup.rb config && ruby setup.rb setup && sudo ruby setup.rb install

**** Debian install

  *SiSU* is available off the *Debian* archives. It should necessary only to run
  as root, Using apt-get:

    apt-get update

    apt get install sisu-complete

  (all sisu dependencies should be taken care of)

  If there are newer versions of *SiSU* upstream, they will be available by
  adding the following to your sources list /etc/apt/sources.list

  #/etc/apt/sources.list

  deb https://www.jus.uio.no/sisu/archive unstable main non-free
  deb-src https://www.jus.uio.no/sisu/archive unstable main non-free

  The non-free section is for sisu markup samples provided, which contain
  authored works the substantive text of which cannot be changed, and which as a
  result do not meet the debian free software guidelines.

  *SiSU* is developed on *Debian*, and packages are available for *Debian* that
  take care of the dependencies encountered on installation.

  The package is divided into the following components:

    *sisu*, the base code, (the main package on which the others depend), without
    any dependencies other than ruby (and for convenience the ruby webrick web
    server), this generates a number of types of output on its own, other
    packages provide additional functionality, and have their dependencies

    *sisu-complete*, a dummy package that installs the whole of greater sisu as
    described below, apart from sisu -examples

    *sisu-pdf*, dependencies used by sisu to produce pdf from /LaTeX/ generated

    *sisu-postgresql*, dependencies used by sisu to populate postgresql database
    (further configuration is necessary)

    *sisu-sqlite*, dependencies used by sisu to populate sqlite database

    *sisu-markup-samples*, sisu markup samples and other miscellany (under
    *Debian* Free Software Guidelines non-free)

    *SiSU* is available off Debian Unstable and Testing [link:
    <https://packages.debian.org/cgi-bin/search_packages.pl?searchon=names&subword=1&version=all&release=all&keywords=sisu>]
    [^1] install it using apt-get, aptitude or alternative *Debian* install tools.

**** Arch Linux

*** sisu markup                                                        :sisu:

**** markup                                                          :markup:
***** sisu document parts
  - header
    - metadata
    - make instructionS
  - substantive (& other) content
    (sisu markup)
  - endnotes
    (markup within substantive content)
  - glossary
    (section, special markup)
  - bibliography
    (section, special markup)
  - book index
    (markup attached to substantive content objects)

  |---------------------+-----------------------------------------------------------------------+------------------------+--------|
  | header              | sisu /header markup/                                                    | markup                 |        |
  | - metadata          |                                                                       |                        |        |
  | - make instructions |                                                                       |                        |        |
  |---------------------+-----------------------------------------------------------------------+------------------------+--------|
  | substantive content | sisu /content markup/                                                   | markup                 | output |
  |                     | headings (providing document structure), paragraphs,                  | (regular content)      |        |
  |                     | blocks (code, poem, group, table)                                     |                        |        |
  |---------------------+-----------------------------------------------------------------------+------------------------+--------|
  | endnotes            | markup within substantive content                                     | markup                 | output |
  |                     | (extracted from sisu /content markup/)                                  | (from regular content) |        |
  |---------------------+-----------------------------------------------------------------------+------------------------+--------|
  | glossary            | identify special section, regular /content markup/                      | markup                 | output |
  |---------------------+-----------------------------------------------------------------------+------------------------+--------|
  | bibliography        | identify section, special /bibliography markup/                         | markup                 | output |
  |---------------------+-----------------------------------------------------------------------+------------------------+--------|
  | book index          | extracted from markup attached to related substantive content objects | markup                 | output |
  |                     | (special tags in sisu /content markup/)                                 | (from regular content) |        |
  |---------------------+-----------------------------------------------------------------------+------------------------+--------|
  | metadata            |                                                                       | (from regular header)  | output |
  |---------------------+-----------------------------------------------------------------------+------------------------+--------|

***** structure - headings, levels
  - headings (A-D, 1-3)

  'A~ ' NOTE title level

  'B~ ' NOTE optional
  'C~ ' NOTE optional
  'D~ ' NOTE optional

  '1~ ' NOTE chapter level
  '2~ ' NOTE optional
  '3~ ' NOTE optional

    * node
      * parent
      * children

*****  font face NOTE open & close marks, inline within paragraph
    * emphasize '*{ ... }*' NOTE configure whether bold italics or underscore, default bold
    * bold '!{ ... }!'
    * italics '/{ ... }/'
    * underscore '_{ ... }_'
    * superscript '^{ ... }^'
    * subscript ',{ ... },'
    * strike '-{ ... }-'
    * add '+{ ... }+'
    * monospace '#{ ... }#'

***** para
  NOTE paragraph controls are at the start of a paragraph
    * a para is a block of text separated from others by an empty line
    * indent
      * default, all '_1 ' up to '_9 '
      * first line hang '_1_0 '
      * first line indent further '_0_1 '
    * bullet
      [levels 1-6]
        '_* '
        '_1* '
        '_2* '
    * numbered list
      [levels 1-3]
        '# '

***** blocks
  NOTE text blocks that are not to be treated in the way that ordinary paragraphs would be
    * code
      * [type of markup if any]
    * poem
    * group
    * alt
    * tables

***** notes (footnotes/ endnotes)
   NOTE inline within paragraph at the location where the note reference is to occur
    * footnotes '~{ ... }~'
    * [bibliography] [NB N/A not implemented]

***** links, linking
    * links - external, web, url
    * links - internal

***** images [multimedia?]
    * images
    * [base64 inline] [N/A not implemented]

***** object numbers
    * ocn (object numbers)
      automatically attributed to substantive objects, paragraphs, tables, blocks, verse (unless exclude marker provided)

***** contents
    * toc (table of contents)
      autogenerated from structure/headings information
    * index (book index)
      built from hints in newline text following a paragraph and starting with ={} has identifying rules for main and subsidiary text

***** breaks
    * line break ' \\ ' inline
    * page break, column break ' -\\- ' start of line, breaks a column, starts a new column, if using columns, else breaks the page, starts a new page.
    * page break, page new ' =\\= ' start of line, breaks the page, starts a new page.
    * horizontal '-..-' start of line, rule page (break) line across page (dividing paragraphs)

***** book type index
  built from hints in newline text following a paragraph and starting with ={} has identifying rules for main and subsidiary text

  #% comment
    * comment

  #% misc
    * term & definition

**** syntax highlighting                                :syntax:highlighting:

***** vim
  data/sisu/conf/editor-syntax-etc/vim/
  data/sisu/conf/editor-syntax-etc/vim/syntax/sisu.vim

***** emacs
  data/sisu/conf/editor-syntax-etc/emacs/
  data/sisu/conf/editor-syntax-etc/emacs/sisu-mode.el

*** todo
  sisu_todo.org

* document header

#+NAME: sisu_document_header
#+BEGIN_SRC text
encoding: utf-8
- Name: SiSU

  - Description: documents, structuring, processing, publishing, search
    sisu build

  - 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 <https://www.gnu.org/licenses/>.

    If you have Internet connection, the latest version of the GPL should be
    available at these locations:
    <https://www.fsf.org/licensing/licenses/gpl.html>
    <https://www.gnu.org/licenses/gpl.html>

    <https://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:
    <https://www.sisudoc.org>

  - Git
    <https://git.sisudoc.org/projects/>
    <https://git.sisudoc.org/projects/sisu>
    <https://git.sisudoc.org/projects/sisu-markup>
#+END_SRC