trange.prep - plan9port - [fork] Plan 9 from user space
  HTML git clone git://src.adamsgaard.dk/plan9port
   DIR Log
   DIR Files
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   DIR README
   DIR LICENSE
       ---
       trange.prep (300B)
       ---
            1 awk ' # range.prep
            2 #   Input:  ["%begin"|"%end"|""] string (tab) number
            3 #   Output: string (tab) ["b"|"e"|"a"]  (tab) number
            4 
            5 BEGIN                { FS = OFS = "\t" }
            6                 { f2 = "a" }
            7 $1 ~ /^%begin/        { f2 = "b"; sub(/^%begin */, "", $1) }
            8 $1 ~ /^%end/        { f2 = "e"; sub(/^%end */, "", $1) }
            9                 { print $1, f2, $2 }
           10 ' $*