commands/scripts/makewhatis.sh

   1 #!/bin/sh
   2 #
   3 # makewhatis 2.2 - make whatis(5) database.     Author: Kees J. Bot.
   4 #
   5 # Make the whatis database of a man directory from the manual pages.
   6
   7 case $1 in
   8 -*)     set -$- x x
   9 esac
  10
  11 case $# in
  12 1)      ;;
  13 *)      echo "Usage: $0 <mandir>" >&2
  14         exit 1
  15 esac
  16
  17 cd $1 || exit
  18
  19 {
  20         # First pass, gathering the .SH NAME lines in various forms.
  21
  22         # First the man[1-9] directories, the titles are under the .SH NAME
  23         # section header.
  24         for chap in 1 2 3 4 5 6 7 8 9
  25         do
  26                 for page in man$chap/*.$chap
  27                 do
  28                    if   test -f "$page"; then   # (Old sh barfs on 'continue')
  29
  30                         sed -e 's/      / /g
  31                                 s/"NAME"/NAME/g
  32                                 s/^\.Sh/\.SH/g
  33                                 /^\.SH NAME/,/^\.SH /!d
  34                                 /^\.SH /d
  35                                 s/\\f.//g
  36                                 s/\\s[+-].//g
  37                                 s/\\s.//g
  38                                 s/\\//
  39                                 '"s/ - / ($chap) - /" < "$page"
  40                    fi
  41                 done
  42         done
  43
  44         # The Minix "Book style" documents, look for .CD
  45         for page in man1x/*.1x
  46         do
  47            if   test -f "$page"; then
  48
  49                 sed -e 's/      / /g
  50                         /^\.CD /!d
  51                         s/^[^"]*"//
  52                         s/"[^"]*$//
  53                         s/\\(en/-/g
  54                         s/\\f.//g
  55                         s/\\s[+-].//g
  56                         s/\\s.//g
  57                         s/\\\*(M2/MINIX/g
  58                         s/\\//
  59                         '"s/ - / (1x) - /" < "$page"
  60            fi
  61         done
  62
  63         # Some people throw extra flat text files into the cat[1-9]
  64         # directories.  It would be nice if man(1) can find them.
  65         trap 'rm -f /tmp/mkw[cmn]$$; exit 1' 1 2 15
  66         for chap in 1 2 3 4 5 6 7 8 9
  67         do
  68                 ls cat$chap 2>/dev/null >/tmp/mkwc$$
  69                 ls man$chap 2>/dev/null >/tmp/mkwm$$
  70                 comm -23 /tmp/mkwc$$ /tmp/mkwm$$ >/tmp/mkwn$$
  71                 sed -e "/.*\\.$chap\$/!d
  72                         s/\\.$chap\$/ ($chap) - ???/" < /tmp/mkwn$$
  73         done
  74         rm -f /tmp/mkw[cmn]$$
  75 } | {
  76         # Second pass, remove empty lines, leading and trailing spaces,
  77         # multiple spaces to one space, remove lines without a dash.
  78         sed -e 's/  */ /g
  79                 s/^ //
  80                 s/ $//
  81                 /^$/d
  82                 /-/!d'
  83 } | {
  84         # Third pass, sort by section.
  85         sort -t'(' +1 -o whatis
  86 }