feature_to_c.sh

   1 #!/bin/sh
   2
   3 # Convert text files to compilable C arrays.
   4 #
   5 # Copyright (C) 2007 Free Software Foundation, Inc.
   6 #
   7 # This file is part of GDB.
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program; if not, see <http://www.gnu.org/licenses/>.
  21
  22 output=$1
  23 shift
  24
  25 if test -z "$output" || test -z "$1"; then
  26   echo "Usage: $0 OUTPUTFILE INPUTFILE..."
  27   exit 1
  28 fi
  29
  30 if test -e "$output"; then
  31   echo "Output file \"$output\" already exists; refusing to overwrite."
  32   exit 1
  33 fi
  34
  35 for input; do
  36   arrayname=xml_feature_`echo $input | sed 's,.*/,,; s/[-.]/_/g'`
  37
  38   ${AWK:-awk} 'BEGIN { n = 0
  39       print "static const char '$arrayname'[] = {"
  40       for (i = 0; i < 255; i++)
  41         _ord_[sprintf("%c", i)] = i
  42     } {
  43       split($0, line, "");
  44       printf "  "
  45       for (i = 1; i <= length($0); i++) {
  46         c = line[i]
  47         if (c == "'\''") {
  48           printf "'\''\\'\'''\'', "
  49         } else if (c == "\\") {
  50           printf "'\''\\\\'\'', "
  51         } else if (_ord_[c] >= 32 && _ord_[c] < 127) {
  52           printf "'\''%s'\'', ", c
  53         } else {
  54           printf "'\''\\%03o'\'', ", _ord_[c]
  55         }
  56         if (i % 10 == 0)
  57           printf "\n   "
  58       }
  59       printf "'\''\\n'\'', \n"
  60     } END {
  61       print "  0 };"
  62     }' < $input >> $output
  63 done
  64
  65 echo >> $output
  66 echo "extern const char *const xml_builtin[][2];" >> $output
  67 echo "const char *const xml_builtin[][2] = {" >> $output
  68
  69 for input; do
  70   basename=`echo $input | sed 's,.*/,,'`
  71   arrayname=xml_feature_`echo $input | sed 's,.*/,,; s/[-.]/_/g'`
  72   echo "  { \"$basename\", $arrayname }," >> $output
  73 done
  74
  75 echo "  { 0, 0 }" >> $output
  76 echo "};" >> $output