29 lines
724 B
Ruby
29 lines
724 B
Ruby
rule '.rb' => '.rl' do |task|
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Cliver.assert('ragel', '~> 6.7')
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sh "ragel -F1 -R #{task.source} -o #{task.name}"
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puts "Applying patch http://git.io/ow6e1A to #{task.name}"
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# Patches the lexer based on http://git.io/ow6e1A.
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input = File.read(task.source)
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output = File.read(task.name)
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getkey = input.match(/getkey\s+(.+);/)[1]
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output = output.gsub(getkey, '_wide')
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output = output.gsub('_trans = if', "_wide = #{getkey}\n _trans = if")
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File.open(task.name, 'w') do |handle|
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handle.write(output)
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end
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end
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rule '.c' => '.rl' do |task|
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Cliver.assert('ragel', '~> 6.7')
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sh "ragel -C -G2 #{task.source} -o #{task.name}"
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end
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desc 'Generates the lexers'
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task :lexer => ['ext/c/liboga/lexer.c']
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