util/xr2cairo

   1 #!/bin/sh
   2 set -e
   3
   4 if [ $# -lt 1 ]; then
   5     argv0=`basename $0`
   6     echo "$argv0: Convert source code written for Xr to use Cairo instead." >&2
   7     echo "" >&2
   8     echo "Usage: $argv0 file [...]" >&2
   9     exit 1
  10 fi
  11
  12 xr2cairo() {
  13         file=$1
  14         backup=$file.xr
  15
  16         if [ -e $backup ]; then
  17                 echo "Warning: Backup file $backup already exists --- not backing up this time." >&2
  18         else
  19                 cp $file $backup
  20         fi
  21         sed -e '
  22                 s/\(Xr[a-zA-Z]*\)RGB/\1Rgb/g
  23                 s/\(Xr[a-zA-Z]*\)NextTo/\1Similar/g
  24
  25                 s/Xr\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)/\Lcairo_\1_\2_\3_\4_\5\E/g
  26                 s/Xr\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)/\Lcairo_\1_\2_\3_\4\E/g
  27                 s/Xr\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z]\+\)/\Lcairo_\1_\2_\3\E/g
  28                 s/Xr\([A-Z]\+[a-z]\+\)\([A-Z]\+[a-z0-9]\+\)/\Lcairo_\1_\2\E/g
  29                 s/Xr\([A-Z]\+[a-z]\+\)/\Lcairo_\1\E/g
  30
  31                 s/\(cairo_\(operator\|status\|fill_rule\|line_cap\|line_join\|filter\|format\)_[a-z0-9_]\{2,\}\)/\U\1/g
  32
  33                 s/cairo_\(fill_rule\|line_cap\|line_join\|format\|operator\|status\|filter\|surface\|matrix\)$/cairo_\1_t/g
  34                 s/cairo_\(fill_rule\|line_cap\|line_join\|format\|operator\|status\|filter\|surface\|matrix\)\([^_]\)/cairo_\1_t\2/g
  35                 s/_cairo_\(fill_rule\|line_cap\|line_join\|format\|operator\|status\|filter\|surface\|matrix\)_t/cairo_\1/g
  36                 s/cairo_state/cairo_t/g
  37                 s/_cairo_t\([^a-zA-Z0-9_]\)/cairo\1/g
  38
  39                 s/Xr\.h/cairo.h/g
  40
  41                 ' $backup > $file
  42 }
  43
  44 while [ $# -gt 0 ]; do
  45         file=$1
  46         shift
  47         xr2cairo $file
  48 done
  49