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#!/usr/bin/env ruby
# this file auto-generates loaders for hyphenation patterns - to be improved
load 'languages.rb'
$package_name="hyph-utf8"
# TODO - make this a bit less hard-coded
$path_tex_generic=File.expand_path("../../../tex/generic")
$path_loadhyph="#{$path_tex_generic}/#{$package_name}/loadhyph"
# TODO: should be singleton
languages = Languages.new.list
#text_if_native_utf = "\input pattern-loader.tex\n\\ifNativeUtfEightPatterns"
text_if_native_utf = <<EOT
% Test whether we received one or two arguments
\\def\\testengine#1#2!{\\def\\secondarg{#2}}
% That's Tau (as in Taco or ΤΕΧ, Tau-Epsilon-Chi), a 2-byte UTF-8 character
\\testengine Τ!\\relax
% Unicode-aware engine (such as XeTeX or LuaTeX) only sees a single (2-byte) argument
\\ifx\\secondarg\\empty
EOT
languages.each do |language|
if language.use_new_loader then
filename = "#{$path_loadhyph}/loadhyph-#{language.code}.tex"
puts "generating '#{filename}'"
File.open(filename, "w") do |file|
# a message about auto-generation
# TODO: write a more comprehensive one
file.puts "% loadhyph-#{language.code}.tex"
file.puts "%"
file.puts "% Autogenerated loader for hyphenation patterns for \"#{language.name}\""
file.puts "% by source/generic/hyph-utf8/generate-pattern-loaders.rb"
file.puts "% See also http://tug.org/tex-hyphen"
file.puts "%"
file.puts "% Copyright 2008 TeX Users Group."
file.puts "% You may freely use, modify and/or distribute this file."
file.puts "% (But consider adapting the scripts if you need modifications.)"
file.puts "%"
file.puts "% Once it turns out that more than a simple definition is needed,"
file.puts "% these lines may be moved to a separate file."
file.puts "%"
# message (where it exists)
# if language.message != nil
# file.puts("\\message{#{language.message}}\n%")
# end
# TODO:
# \lefthyphenmin=2 \righthyphenmin=2
# but probably this needs to reside outside of \begingroup/endgroup
file.puts('\begingroup')
if language.code == 'it' or language.code == 'fr' or language.code == 'uk' or language.code == 'la' or language.code == 'zh-latn' then
file.puts("\\lccode`\\'=`\\'")
end
if language.code == 'pt' or language.code == 'tk' then
file.puts("\\lccode`\\-=`\\-")
end
# some special cases firs
#
# some languages (sanskrit) are useless in 8-bit engines; we only want to load them for UTF engines
# TODO - maybe consider doing something similar for ibycus
if language.code == 'sa' or
language.code == 'as' or
language.code == 'bn' or
language.code == 'gu' or
language.code == 'hi' or
language.code == 'hy' or
language.code == 'kn' or
language.code == 'lo' or
language.code == 'ml' or
language.code == 'mr' or
language.code == 'or' or
language.code == 'pa' or
language.code == 'ta' or
language.code == 'te' then
file.puts(text_if_native_utf)
file.puts(" \\message{UTF-8 #{language.message}}")
if language.code != 'lo' then
file.puts(' % Set \lccode for ZWNJ and ZWJ.')
file.puts(' \lccode"200C="200C')
file.puts(' \lccode"200D="200D')
if language.code == 'sa' then
file.puts(' % Set \lccode for KANNADA SIGN JIHVAMULIYA and KANNADA SIGN UPADHMANIYA.')
file.puts(' \lccode"0CF1="0CF1')
file.puts(' \lccode"0CF2="0CF2')
end
end
file.puts(" \\input hyph-#{language.code}.tex")
file.puts('\else')
file.puts(" \\message{No #{language.message} - only available with Unicode engines}")
file.puts(' \input zerohyph.tex')
file.puts('\fi')
# for ASCII encoding, we don't load any special support files, but simply load everything
elsif language.encoding == "ascii" then
file.puts('% ASCII patterns - no additional support is needed')
# for UK English we simply load the old file without bothering about renaming it
if language.use_old_patterns then
file.puts("\\input #{language.filename_old_patterns}")
# for the rest we load the new file
else
file.puts("\\message{ASCII #{language.message}}")
file.puts("\\input hyph-#{language.code}.tex")
end
# when lanugage uses old patterns for 8-bit engines, load two different patterns rather than using the converter
elsif language.use_old_patterns then
file.puts(text_if_native_utf)
file.puts(" \\message{UTF-8 #{language.message}}")
# some catcodes for XeTeX
if language.code == 'grc' or language.code.slice(0,2) == 'el' then
file.puts(" \\lccode`'=`'\\lccode`’=`’\\lccode`ʼ=`ʼ\\lccode`᾽=`᾽\\lccode`᾿=`᾿")
end
file.puts(" \\input hyph-#{language.code}.tex")
# russian and ukrainian exceptions - hacks with dashes
if language.code == 'ru' or language.code == 'uk' then
file.puts(' % Additional patterns with hyphen/dash: a hack to prevent breaking after hyphen, but not before.')
file.puts(" \\input exhyph-#{language.code}.tex")
end
file.puts('\else')
file.puts(" \\message{#{language.message}}")
# explain why we are still using the old patterns
if language.use_old_patterns_comment != nil then
file.puts(" % #{language.use_old_patterns_comment}")
else
puts "Missing comment for #{language.name}"
file.puts(' % we still load old patterns for 8-bit TeX')
end
file.puts(" \\input #{language.filename_old_patterns}")
file.puts('\fi')
else
file.puts(text_if_native_utf)
file.puts(" \\message{UTF-8 #{language.message}}")
file.puts('\else')
file.puts(" \\message{#{language.encoding.upcase} #{language.message}}")
# a hack for OT1 encoding in three languages
if language.code == 'da' or language.code == 'fr' then
file.puts(" % A hack to support both EC and OT1 encoding in 8-bit engines.")
file.puts(" % Kept for backward compatibility only, though we would prefer to drop it.")
file.puts(" % OT1 encoding is close-to-useless for proper hyphenation.")
file.puts(" \\input spechyph-ot1-#{language.code}.tex")
end
file.puts(" \\input conv-utf8-#{language.encoding}.tex")
file.puts('\fi')
if language.code == 'sr-latn' then
file.puts("% Load Serbo-Croatian patterns")
file.puts("\\input hyph-sh-latn.tex")
else
file.puts("\\input hyph-#{language.code}.tex")
end
# file.puts("\\loadhyphpatterns{#{language.code}}{#{language.encoding}}%")
end
file.puts('\endgroup')
end
end
end
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