59 lines
967 B
Ruby
59 lines
967 B
Ruby
# This file is part of Metasm, the Ruby assembly manipulation suite
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# Copyright (C) 2007 Yoann GUILLOT
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#
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# Licence is LGPL, see LICENCE in the top-level directory
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#
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# shows the preprocessor path to find a specific line
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# usage: ruby chdr-find.rb 'regex pattern' list of files.h
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#
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def gets
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l = $ungets
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$ungets = nil
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l || super
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end
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def parse(root=false)
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want = false
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ret = []
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while l = gets
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case l = l.strip
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when /^#if/
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ret << l
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r = parse(true)
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if r.empty?
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ret.pop
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else
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want = true
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rr = r.pop
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ret.concat r.map { |l| (l[0,3] == '#el' ? ' ' : ' ') << l }
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ret << rr
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end
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when /^#el/
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if not root
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$ungets = l
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break
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end
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ret << l
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r = parse
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want = true if not r.empty?
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ret.concat r
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when /^#endif/
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if not root
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$ungets = l
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break
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end
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ret << l
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break
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when /#$srch/ #, /^#include/
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want = true
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ret << l
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end
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end
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want ? ret : []
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end
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$srch = ARGV.shift
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puts parse
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