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22 lines
537 B
Ruby
22 lines
537 B
Ruby
#! /usr/local/bin/ruby -Kn
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# usage: exyacc.rb [yaccfiles]
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# this is coverted from exyacc.pl in the camel book
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$/ = nil
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while gets()
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sbeg = $_.index("\n%%") + 1
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send = $_.rindex("\n%%") + 1
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$_ = $_[sbeg, send-sbeg]
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sub!(/.*\n/, "")
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gsub!(/'\{'/, "'\001'")
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gsub!(/'}'/, "'\002'")
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gsub!('\*/', "\003\003")
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gsub!("/\\*[^\003]*\003\003", '')
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while gsub!(/\{[^{}]*}/, ''); end
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gsub!(/'\001'/, "'{'")
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gsub!(/'\002'/, "'}'")
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while gsub!(/^[ \t]*\n(\s)/, '\1'); end
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gsub!(/([:|])[ \t\n]+(\w)/, '\1 \2')
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print $_
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end
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