--- /dev/null
+#! /bin/sh
+# emacs-fe --- front end driver for `emacs' and other programs
+
+# Copyright (C) 1995, 1996 Noah S. Friedman
+
+# Author: Noah Friedman <friedman@prep.ai.mit.edu>
+# Created: 1995-09-11
+
+# $.Id: emacs-fe,v 1.8 1996/03/07 04:32:33 friedman Exp $
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, you can either send email to this
+# program's maintainer or write to: The Free Software Foundation,
+# Inc.; 59 Temple Place, Suite 330; Boston, MA 02111-1307, USA.
+
+# Commentary:
+
+# Inspired by a similar set of scripts by Charles Sandel <sandel@cli.com>,
+# but generalized into this single script.
+
+# Front-end shell script for GNU Emacs, used to manage multiple versions of
+# Emacs and its associated utilities.
+#
+# Strategy: Install this script as "$prefix/bin/[progname]", for each
+# program named [progname], (e.g. "emacs", "ispell", "etags", etc). These
+# are the commands users would normally execute to run them.
+
+# Give each version of emacs/xemacs/mule/ispell a separate hierarchy under
+# $prefix/[emacs|xemacs|mule|ispell], with the name
+# "[emacs|xemacs|mule|ispell]-NN.NN" where NN.NN is the version number.
+# This script looks at what versions are available, and selects a version,
+# currently whatever is specified by $DEFAULTLVERSION.
+
+# However, users can specify their own choice to force the selection of a
+# particular version by setting the environment variable PROGNAMEVERSION
+# (e.g. EMACSVERSION, MULEVERSION, XEMACSVERSION, etc.) to have a value
+# which is the version number of the program that they want to use (just
+# the numeric value), or to specify either the NEWEST or OLDEST versions.
+
+# Code:
+
+# Name by which this script was invoked.
+progname=`echo "$0" | sed -e 's/[^\/]*\///g'`
+
+# To prevent hairy quoting and escaping later.
+bq='`'
+eq="'"
+
+case "$progname" in
+ emacs-fe-print )
+ case $# in
+ 1 ) : ;;
+ * )
+ echo "$progname: Exactly one argument is required." 1>&2
+ exit 1
+ ;;
+ esac
+
+ # sed is more portable than `dirname'
+ dir=`echo "$0" | sed -e 's/\/*$//' -e 's/\/[^\/]*$//'`
+ if test -f "$dir/$1"; then
+ EMACS_FE_PRINT=t
+ export EMACS_FE_PRINT
+ exec "$dir/$1"
+ fi
+
+ echo "$progname: $bq$dir/$1$eq does not seem to exist." 1>&2
+ exit 1
+ ;;
+esac
+
+DEFAULTVERSION="${DEFAULTVERSION-NEWEST}"
+VARIANT="${EMACSVARIANT-emacs}"
+
+if [ "$prefix" = "" ] ; then
+ # root of the GNU installed tree
+ prefix=/usr/local/gnu
+fi
+
+if [ ! -d "$prefix" ] ; then
+ echo "Cannot find root of GNU tree ($prefix)."
+ exit 1
+fi
+
+case "$progname" in
+ emacs | lemacs | xemacs | mule | ispell )
+ if [ "$eprefix" = "" ] ; then
+ # prefix name of the subdirectory
+ eprefix="${progname}/${progname}-"
+ fi
+ ;;
+ * )
+ eprefix="$VARIANT/${VARIANT}-"
+ ;;
+esac
+
+# Find out which versions are available on the system and sort them
+# in numeric order.
+#
+# The largish sed script prefixes all version numbers with a sort key.
+# That key is constructed by padding out any single or double digits to 3
+# digits from the version number, then converting all occurences of `.' to
+# `0', and prefixing and suffixing the entire result with an additional
+# zero. After sorting, the sort key is stripped from the output.
+# We do all this because `sort' cannot numerically sort decimal numbers and
+# will stop on the first `.'.
+# This may not work correctly if the version number has more than 4 levels
+# of minor versions (e.g. "1.2.3.4.5" may cause problems).
+availversions=`ls -1d $prefix/${eprefix}*/. 2> /dev/null \
+ | sed -n \
+ -e "s#^$prefix/$eprefix\([0-9.][0-9.]*\)/\.*#\1#" \
+ -e 'h
+ s/[^.]*[^0-9.][^.]*\.//g
+ :0
+ /[0-9.][0-9.]*\.[0-9.][0-9.]*\.[0-9.][0-9.]*\.[0-9.][0-9.]*/!{
+ s/$/.0/
+ b 0
+ }
+ s/^/./
+ s/$/./
+ :1
+ s/\.\([0-9]\)\./.00\1./g
+ s/\.\([0-9][0-9]\)\./.0\1./g
+ t 1
+ s/\./0/g
+ G
+ s/\n/ /' \
+ -e 'p' \
+ | sort -nu \
+ | sed -e 's/.* //'`
+
+if [ "$availversions" = "" ] ; then
+ echo "No version of $progname found in $prefix/$eprefix*."
+ exit 1
+fi
+
+# This sets `oldest' to the oldest version available, and `newest'
+# to the newest version available.
+# On line 1, we save the original pattern in the hold space and restore it
+# in case it is the only line of input.
+eval `echo "$availversions" \
+ | sed -ne '1{h;s/^/oldest=/p;g;}
+ ${s/^/newest=/p;}
+ '`
+
+# The environment variable [progname]VERSION can have a value which specifies
+# a version number, OR it can contain the values "NEWEST" or "OLDEST" to
+# specify the newest or oldest version which was found.
+sed_upcase='y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'
+
+PROGNAME=`echo "$progname" | sed -e "$sed_upcase" -e 's/-/_/g'`
+eval version=\"\$${PROGNAME}VERSION\"
+
+# If there is no ETAGSVERSION, EMACSCLIENTVERSION, etc, then look for
+# EMACSVERSION, XEMACSVERSION, or whatever the current variant is.
+case "$version" in
+ '' )
+ case "$progname" in
+ ispell )
+ # If this is ispell and ISPELLVERSION isn't set, just use 3.1.
+ # We could run this script recursively with a flag indicating to
+ # find the current emacs variant and version and just print it out,
+ # but that is a very pathological case and is a lot of work.
+ version=3.1 ;;
+ * )
+ variant=`echo "$VARIANT" | sed -e "$sed_upcase"`
+ eval version=\"\$${variant}VERSION\"
+ case "$version" in
+ '' ) version="$DEFAULTVERSION" ;;
+ esac
+ ;;
+ esac
+esac
+
+case "$version" in
+ [Oo][Ll][Dd][Ee][Ss][Tt]) version="$oldest" ;;
+ [Nn][Ee][Ww][Ee][Ss][Tt]) version="$newest" ;;
+ '') version="$oldest" ;;
+ *)
+ if [ ! -d "$prefix/$eprefix$version" ] ; then
+ echo "$progname: $version: Cannot find requested version." 1>&2
+ version=
+ fi
+ ;;
+esac
+
+# If we don't have a version by now, then give up.
+if [ "$version" = "" ] ; then
+ exec 1>&2
+ echo "$progname: Cannot determine which version to use."
+ case "$availversions" in
+ */* )
+ echo "Available versions are:"
+ for f in $availversions; do
+ echo " $f"
+ done | sort
+ ;;
+ * )
+ echo "Available versions are:" $availversions
+ ;;
+ esac
+ exit 1
+fi
+
+case "$progname" in
+ emacs | lemacs | xemacs | mule )
+ EMACSVARIANT=$progname
+ eval ${PROGNAME}VERSION=$version
+ eval export EMACSVARIANT ${PROGNAME}VERSION
+
+ case "$EMACSVARIANT-$version" in
+ emacs-18* ) ISPELLVERSION=4.0 ;;
+ emacs-19.[0-9] ) ISPELLVERSION=4.0 ;;
+ emacs-19.1[0-9] ) ISPELLVERSION=4.0 ;;
+ emacs-19.2[0-2] ) ISPELLVERSION=4.0 ;;
+ emacs-19.2[3-9] ) ISPELLVERSION=3.1 ;;
+ emacs-* ) ISPELLVERSION=3.1 ;;
+
+ lemacs-19.[0-9] ) ISPELLVERSION=3.0.09 ;;
+ lemacs-19.10 ) ISPELLVERSION=3.1 ;;
+
+ xemacs-* ) ISPELLVERSION=3.1 ;;
+
+ mule-* ) ISPELLVERSION=3.1 ;;
+ esac
+ export ISPELLVERSION
+ ;;
+esac
+
+case "$progname" in
+ xemacs )
+ # xemacs expects to use the keysym database in /usr/openwin, but that
+ # database doesn't define many of the keysyms it uses. Unless the user
+ # has already defined their own, specify the keysym database in X11.
+ XKEYSYMDB="${XKEYSYMDB-/usr/local/X11/lib/X11/XKeysymDB}"
+ export XKEYSYMDB
+
+ # Some versions of xemacs (e.g. 19.12) are dynamically linked against
+ # the openwin tooltalk library (libtt.so), so add openwin to the
+ # dynamic load path if necessary.
+ case "$LD_LIBRARY_PATH" in
+ *'/usr/openwin/lib'* ) : ;;
+ '' )
+ LD_LIBRARY_PATH=/usr/local/X11R5/lib:/usr/openwin/lib:/lib
+ export LD_LIBRARY_PATH
+ ;;
+ * )
+ LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/openwin/lib"
+ export LD_LIBRARY_PATH
+ ;;
+ esac
+ ;;
+esac
+
+# Set up the MANPATH so that the man pages for this version
+# are searched first
+if [ -d $prefix/$eprefix$version/man ] ; then
+ MANPATH=$prefix/$eprefix$version/man:$MANPATH
+ export MANPATH
+fi
+
+# There is no need to do this, and it can potentially cause problems,
+# especially if a program like `xemacs' exists in that directory and gets
+# run in subshells instead of this script.
+#PATH=$prefix/$eprefix$version/bin:$PATH
+#export PATH
+
+searchdirs=`exec 2> /dev/null
+ cd $prefix/$eprefix$version \
+ && find bin \
+ libexec/$VARIANT/$version/* \
+ lib/$VARIANT/$version/* \
+ lib/$VARIANT-$version/* \
+ lib/$VARIANT/etc \
+ lib/etc \
+ -type d -print`
+
+for dir in $searchdirs ; do
+ for p in $progname-$version $progname ; do
+ prog="$prefix/$eprefix$version/$dir/$p"
+
+ if test -f "$prog" ; then
+ case "${EMACS_FE_PRINT+set}" in
+ set )
+ echo "$prog"
+ exit 0
+ ;;
+ esac
+
+ exec "$prog" ${1+"$@"}
+ fi
+ done
+done
+
+exec 1>&2
+
+echo "$progname: Cannot find $bq$progname-$version$eq or $bq$progname$eq in"
+
+for d in $searchdirs ; do
+ ls -1d $prefix/$eprefix$version/$d 2> /dev/null \
+ | sed -e "s/^/$progname: /"
+done
+
+exit 1
+
+# emacs-fe ends here
projects / chise / xemacs-chise.git.1 / blobdiff