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gcc/texinfo/util/gen-dir-node

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1997-08-22 06:57:35 +08:00
#!/bin/sh
# $Id: gen-dir-node,v 1.1.1.2 1998/03/22 20:43:12 law Exp $
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# Generate the top-level Info node, given a directory of Info files
# and (optionally) a skeleton file. The output will be suitable for a
# top-level dir file. The skeleton file contains info topic names in the
# order they should appear in the output. There are three special
# lines that alter the behavior: a line consisting of just "--" causes
# the next line to be echoed verbatim to the output. A line
# containing just "%%" causes all the remaining filenames (wildcards
# allowed) in the rest of the file to be ignored. A line containing
# just "!!" exits the script when reached (unless preceded by a line
# containing just "--"). Once the script reaches the end of the
# skeleton file, it goes through the remaining files in the directory
# in order, putting their entries at the end. The script will use the
# ENTRY information in each info file if it exists. Otherwise it will
# make a minimal entry.
# sent by Jeffrey Osier <jeffrey@cygnus.com>, who thinks it came from
# zoo@winternet.com (david d `zoo' zuhn)
# modified 7 April 1995 by Joe Harrington <jh@tecate.gsfc.nasa.gov> to
# take special flags
INFODIR=$1
if [ $# = 2 ] ; then
SKELETON=$2
else
SKELETON=/dev/null
fi
skip=
if [ $# -gt 2 ] ; then
echo usage: $0 info-directory [ skeleton-file ] 1>&2
exit 1
else
true
fi
if [ ! -d ${INFODIR} ] ; then
echo "$0: first argument must specify a directory"
exit 1
fi
### output the dir header
echo "-*- Text -*-"
echo "This file was generated automatically by $0."
echo "This version was generated on `date`"
echo "by `whoami`@`hostname` for `(cd ${INFODIR}; pwd)`"
cat << moobler
This is the file .../info/dir, which contains the topmost node of the
Info hierarchy. The first time you invoke Info you start off
looking at that node, which is (dir)Top.

File: dir Node: Top This is the top of the INFO tree
This (the Directory node) gives a menu of major topics.
Typing "d" returns here, "q" exits, "?" lists all INFO commands, "h"
gives a primer for first-timers, "mTexinfo<Return>" visits Texinfo topic,
etc.
Or click mouse button 2 on a menu item or cross reference to select it.
--- PLEASE ADD DOCUMENTATION TO THIS TREE. (See INFO topic first.) ---
* Menu: The list of major topics begins on the next line.
moobler
### go through the list of files in the skeleton. If an info file
### exists, grab the ENTRY information from it. If an entry exists
### use it, otherwise create a minimal dir entry.
###
### Then remove that file from the list of existing files. If any
### additional files remain (ones that don't have a skeleton entry),
### then generate entries for those in the same way, putting the info for
### those at the end....
infofiles=`(cd ${INFODIR}; ls | egrep -v '\-|^dir$|^dir\.info$|^dir\.orig$')`
# echoing gets clobbered by backquotes; we do it the hard way...
lines=`wc $SKELETON | awk '{print $1}'`
line=1
while [ $lines -ge $line ] ; do
# Read one line from the file. This is so that we can echo lines with
# whitespace and quoted characters in them.
fileline=`awk NR==$line $SKELETON`
# flag fancy features
if [ ! -z "$echoline" ] ; then # echo line
echo "$fileline"
fileline=
echoline=
elif [ "${fileline}" = "--" ] ; then # should we echo the next line?
echoline=1
elif [ "${fileline}" = "%%" ] ; then # eliminate remaining files from dir?
skip=1
elif [ "${fileline}" = "!!" ] ; then # quit now
exit 0
fi
# handle files if they exist
for file in $fileline"" ; do # expand wildcards ("" handles blank lines)
fname=
if [ -z "$echoline" -a ! -z "$file" ] ; then
# Find the file to operate upon. Check both possible names.
infoname=`echo $file | sed 's/\.info$//'`
noext=
ext=
if [ -f ${INFODIR}/$infoname ] ; then
noext=$infoname
fi
if [ -f ${INFODIR}/${infoname}.info ] ; then
ext=${infoname}.info
fi
# If it exists with both names take what was said in the file.
if [ ! -z "$ext" -a ! -z "$noext" ]; then
fname=$file
warn="### Warning: $ext and $noext both exist! Using ${file}. ###"
elif [ ! \( -z "$ext" -a -z "$noext" \) ]; then
# just take the name if it exists only once
fname=${noext}${ext}
fi
# if we found something and aren't skipping, do the entry
if [ ! -z "$fname" ] ; then
if [ -z "$skip" ] ; then
if [ ! -z "$warn" ] ; then # issue any warning
echo $warn
warn=
fi
entry=`sed -e '1,/START-INFO-DIR-ENTRY/d' \
-e '/END-INFO-DIR-ENTRY/,$d' ${INFODIR}/$fname`
if [ ! -z "${entry}" ] ; then
echo "${entry}"
else
echo "* ${infoname}: (${fname})."
fi
fi
# remove the name from the directory listing
infofiles=`echo ${infofiles} | sed -e "s/ ${fname} / /" \
-e "s/^${fname} //" \
-e "s/ ${fname}$//"`
fi
fi
done
line=`expr $line + 1`
done
if [ -z "${infofiles}" ] ; then
exit 0
else
echo
fi
for file in ${infofiles}; do
case $file in
*.gz) zcat=zcat; file=`echo $file|sed 's/\.gz$//'`; gz=.gz;;
*) zcat=cat; gz=;;
esac
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infoname=`echo $file | sed 's/\.info$//'`
entry=`$zcat ${INFODIR}/${file}$gz \
|sed -e '1,/START-INFO-DIR-ENTRY/d' \
-e '/END-INFO-DIR-ENTRY/,$d'`
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if [ ! -z "${entry}" ] ; then
echo "${entry}"
else
echo "* ${infoname}: (${file})."
fi
done