experiments/sip

   1 #!/bin/bash
   2 # Simple include processor as an example of a dependency-logging command.
   3 # sip input output depoutput
   4 # Follows `include foo' at the beginning of a line.
   5
   6 exec 3>"$3"
   7 exec >"$2"
   8
   9 function do_read {
  10         echo "$1" >&3
  11         while IFS='' read line; do
  12                 if [[ "$line" == "include "* ]]; then
  13                         do_read "${line#include }"
  14                 else
  15                         echo "$line"
  16                 fi
  17         done <"$1"
  18 }
  19
  20 do_read "$1"