hxtool

   1 #!/bin/sh
   2
   3 hxtoh()
   4 {
   5     flag=1
   6     while read -r str; do
   7         case $str in
   8             HXCOMM*)
   9             ;;
  10             STEXI*|ETEXI*|SQMP*|EQMP*) flag=$(($flag^1))
  11             ;;
  12             *)
  13             test $flag -eq 1 && printf "%s\n" "$str"
  14             ;;
  15         esac
  16     done
  17 }
  18
  19 hxtotexi()
  20 {
  21     flag=0
  22     line=1
  23     while read -r str; do
  24         case "$str" in
  25             HXCOMM*)
  26             ;;
  27             STEXI*)
  28             if test $flag -eq 1 ; then
  29                 echo "line $line: syntax error: expected ETEXI, found $str" >&2
  30                 exit 1
  31             fi
  32             flag=1
  33             ;;
  34             ETEXI*)
  35             if test $flag -ne 1 ; then
  36                 echo "line $line: syntax error: expected STEXI, found $str" >&2
  37                 exit 1
  38             fi
  39             flag=0
  40             ;;
  41             SQMP*|EQMP*)
  42             if test $flag -eq 1 ; then
  43                 echo "line $line: syntax error: expected ETEXI, found $str" >&2
  44                 exit 1
  45             fi
  46             ;;
  47             DEFHEADING*)
  48             echo "$(expr "$str" : "DEFHEADING(\(.*\))")"
  49             ;;
  50             *)
  51             test $flag -eq 1 && echo "$str"
  52             ;;
  53         esac
  54         line=$((line+1))
  55     done
  56 }
  57
  58 hxtoqmp()
  59 {
  60     IFS=
  61     flag=0
  62     line=1
  63     while read -r str; do
  64         case "$str" in
  65             HXCOMM*)
  66             ;;
  67             SQMP*)
  68             if test $flag -eq 1 ; then
  69                 echo "line $line: syntax error: expected EQMP, found $str" >&2
  70                 exit 1
  71             fi
  72             flag=1
  73             ;;
  74             EQMP*)
  75             if test $flag -ne 1 ; then
  76                 echo "line $line: syntax error: expected SQMP, found $str" >&2
  77                 exit 1
  78             fi
  79             flag=0
  80             ;;
  81             STEXI*|ETEXI*)
  82             if test $flag -eq 1 ; then
  83                 echo "line $line: syntax error: expected EQMP, found $str" >&2
  84                 exit 1
  85             fi
  86             ;;
  87             *)
  88             test $flag -eq 1 && echo "$str"
  89             ;;
  90         esac
  91         line=$((line+1))
  92     done
  93 }
  94
  95 case "$1" in
  96 "-h") hxtoh ;;
  97 "-t") hxtotexi ;;
  98 "-q") hxtoqmp ;;
  99 *) exit 1 ;;
 100 esac
 101
 102 exit 0