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41 lines
1 KiB
Ruby
41 lines
1 KiB
Ruby
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#
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# static const rb_transcoder
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# rb_from_US_ASCII = {
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# "US-ASCII", "UTF-8", &from_US_ASCII, 1, 0,
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# NULL, NULL,
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# };
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#
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count = 0
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converters = {}
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transdir = ARGV[0]
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outhdr = ARGV[1] || 'transdb.h'
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Dir.open(transdir) {|d| d.grep(/.+\.[ch]\z/)}.sort.each do |fn|
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open(File.join(transdir,fn)) do |f|
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f.each_line do |line|
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if (/^static const rb_transcoder/ =~ line)..(/"(.*?)"\s*,\s*"(.*?)"/ =~ line)
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if $1 && $2
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from_to = "%s to %s" % [$1, $2]
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converters[from_to]
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if converters[from_to]
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raise ArgumentError, '%s:%d: transcode "%s" is already registered (%s:%d)' %
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[fn, $., from_to, *converters[from_to].values_at(2, 3)]
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else
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converters[from_to] = [$1, $2, fn[0..-3], $.]
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end
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end
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end
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end
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end
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end
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result = converters.map {|k, v| %[rb_declare_transcoder("%s", "%s", "%s");\n] % v}.join
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mode = IO::RDWR|IO::CREAT
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mode |= IO::BINARY if defined?(IO::BINARY)
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open(outhdr, mode) do |f|
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unless f.read == result
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f.rewind
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f.truncate(0)
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f.print result
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end
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end
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