26 lines
535 B
Ruby
26 lines
535 B
Ruby
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#!/usr/bin/env ruby
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##
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# Convert a ruby source file from space to tab indentation
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# XXX - This program is dumb, it doesn't know about heredocs,
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# multiline strings, or anything remotely fancy!
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##
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fd = STDIN
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input = ARGV.shift
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fd = File.open(input, "r") if input
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tbuff = ''
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etabs = 4
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# Replace the leading spaces with equivalent tab characters
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fd.each_line do |line|
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line.sub!(/^\x20+/) do |m|
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spaces = m.length
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while (spaces % etabs != 0); spaces -= 1; end;
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"\t" * (spaces / etabs)
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end
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tbuff << line
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end
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puts tbuff
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