177
+ − 1 #! /bin/sh
+ − 2 # emacs-fe --- front end driver for `emacs' and other programs
+ − 3
+ − 4 # Copyright (C) 1995, 1996 Noah S. Friedman
+ − 5
+ − 6 # Author: Noah Friedman <friedman@prep.ai.mit.edu>
+ − 7 # Created: 1995-09-11
+ − 8
+ − 9 # $.Id: emacs-fe,v 1.8 1996/03/07 04:32:33 friedman Exp $
+ − 10
+ − 11 # This program is free software; you can redistribute it and/or modify
+ − 12 # it under the terms of the GNU General Public License as published by
+ − 13 # the Free Software Foundation; either version 2, or (at your option)
+ − 14 # any later version.
+ − 15 #
+ − 16 # This program is distributed in the hope that it will be useful,
+ − 17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
+ − 18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ − 19 # GNU General Public License for more details.
+ − 20 #
+ − 21 # You should have received a copy of the GNU General Public License
+ − 22 # along with this program; if not, you can either send email to this
+ − 23 # program's maintainer or write to: The Free Software Foundation,
+ − 24 # Inc.; 59 Temple Place, Suite 330; Boston, MA 02111-1307, USA.
+ − 25
+ − 26 # Commentary:
+ − 27
+ − 28 # Inspired by a similar set of scripts by Charles Sandel <sandel@cli.com>,
+ − 29 # but generalized into this single script.
+ − 30
+ − 31 # Front-end shell script for GNU Emacs, used to manage multiple versions of
+ − 32 # Emacs and its associated utilities.
+ − 33 #
+ − 34 # Strategy: Install this script as "$prefix/bin/[progname]", for each
+ − 35 # program named [progname], (e.g. "emacs", "ispell", "etags", etc). These
+ − 36 # are the commands users would normally execute to run them.
+ − 37
+ − 38 # Give each version of emacs/xemacs/mule/ispell a separate hierarchy under
+ − 39 # $prefix/[emacs|xemacs|mule|ispell], with the name
+ − 40 # "[emacs|xemacs|mule|ispell]-NN.NN" where NN.NN is the version number.
+ − 41 # This script looks at what versions are available, and selects a version,
+ − 42 # currently whatever is specified by $DEFAULTLVERSION.
+ − 43
+ − 44 # However, users can specify their own choice to force the selection of a
+ − 45 # particular version by setting the environment variable PROGNAMEVERSION
+ − 46 # (e.g. EMACSVERSION, MULEVERSION, XEMACSVERSION, etc.) to have a value
+ − 47 # which is the version number of the program that they want to use (just
+ − 48 # the numeric value), or to specify either the NEWEST or OLDEST versions.
+ − 49
+ − 50 # Code:
+ − 51
+ − 52 # Name by which this script was invoked.
+ − 53 progname=`echo "$0" | sed -e 's/[^\/]*\///g'`
+ − 54
+ − 55 # To prevent hairy quoting and escaping later.
+ − 56 bq='`'
+ − 57 eq="'"
+ − 58
+ − 59 case "$progname" in
+ − 60 emacs-fe-print )
+ − 61 case $# in
+ − 62 1 ) : ;;
+ − 63 * )
+ − 64 echo "$progname: Exactly one argument is required." 1>&2
+ − 65 exit 1
+ − 66 ;;
+ − 67 esac
+ − 68
+ − 69 # sed is more portable than `dirname'
+ − 70 dir=`echo "$0" | sed -e 's/\/*$//' -e 's/\/[^\/]*$//'`
+ − 71 if test -f "$dir/$1"; then
+ − 72 EMACS_FE_PRINT=t
+ − 73 export EMACS_FE_PRINT
+ − 74 exec "$dir/$1"
+ − 75 fi
+ − 76
+ − 77 echo "$progname: $bq$dir/$1$eq does not seem to exist." 1>&2
+ − 78 exit 1
+ − 79 ;;
+ − 80 esac
+ − 81
+ − 82 DEFAULTVERSION="${DEFAULTVERSION-NEWEST}"
+ − 83 VARIANT="${EMACSVARIANT-emacs}"
+ − 84
+ − 85 if [ "$prefix" = "" ] ; then
+ − 86 # root of the GNU installed tree
+ − 87 prefix=/usr/local/gnu
+ − 88 fi
+ − 89
+ − 90 if [ ! -d "$prefix" ] ; then
+ − 91 echo "Cannot find root of GNU tree ($prefix)."
+ − 92 exit 1
+ − 93 fi
+ − 94
+ − 95 case "$progname" in
+ − 96 emacs | lemacs | xemacs | mule | ispell )
+ − 97 if [ "$eprefix" = "" ] ; then
+ − 98 # prefix name of the subdirectory
+ − 99 eprefix="${progname}/${progname}-"
+ − 100 fi
+ − 101 ;;
+ − 102 * )
+ − 103 eprefix="$VARIANT/${VARIANT}-"
+ − 104 ;;
+ − 105 esac
+ − 106
+ − 107 # Find out which versions are available on the system and sort them
+ − 108 # in numeric order.
+ − 109 #
+ − 110 # The largish sed script prefixes all version numbers with a sort key.
+ − 111 # That key is constructed by padding out any single or double digits to 3
367
+ − 112 # digits from the version number, then converting all occurrences of `.' to
177
+ − 113 # `0', and prefixing and suffixing the entire result with an additional
+ − 114 # zero. After sorting, the sort key is stripped from the output.
+ − 115 # We do all this because `sort' cannot numerically sort decimal numbers and
+ − 116 # will stop on the first `.'.
+ − 117 # This may not work correctly if the version number has more than 4 levels
+ − 118 # of minor versions (e.g. "1.2.3.4.5" may cause problems).
+ − 119 availversions=`ls -1d $prefix/${eprefix}*/. 2> /dev/null \
+ − 120 | sed -n \
+ − 121 -e "s#^$prefix/$eprefix\([0-9.][0-9.]*\)/\.*#\1#" \
+ − 122 -e 'h
+ − 123 s/[^.]*[^0-9.][^.]*\.//g
+ − 124 :0
+ − 125 /[0-9.][0-9.]*\.[0-9.][0-9.]*\.[0-9.][0-9.]*\.[0-9.][0-9.]*/!{
+ − 126 s/$/.0/
+ − 127 b 0
+ − 128 }
+ − 129 s/^/./
+ − 130 s/$/./
+ − 131 :1
+ − 132 s/\.\([0-9]\)\./.00\1./g
+ − 133 s/\.\([0-9][0-9]\)\./.0\1./g
+ − 134 t 1
+ − 135 s/\./0/g
+ − 136 G
+ − 137 s/\n/ /' \
+ − 138 -e 'p' \
+ − 139 | sort -nu \
+ − 140 | sed -e 's/.* //'`
+ − 141
+ − 142 if [ "$availversions" = "" ] ; then
+ − 143 echo "No version of $progname found in $prefix/$eprefix*."
+ − 144 exit 1
+ − 145 fi
+ − 146
+ − 147 # This sets `oldest' to the oldest version available, and `newest'
+ − 148 # to the newest version available.
+ − 149 # On line 1, we save the original pattern in the hold space and restore it
+ − 150 # in case it is the only line of input.
+ − 151 eval `echo "$availversions" \
+ − 152 | sed -ne '1{h;s/^/oldest=/p;g;}
+ − 153 ${s/^/newest=/p;}
+ − 154 '`
+ − 155
+ − 156 # The environment variable [progname]VERSION can have a value which specifies
+ − 157 # a version number, OR it can contain the values "NEWEST" or "OLDEST" to
+ − 158 # specify the newest or oldest version which was found.
+ − 159 sed_upcase='y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'
+ − 160
+ − 161 PROGNAME=`echo "$progname" | sed -e "$sed_upcase" -e 's/-/_/g'`
+ − 162 eval version=\"\$${PROGNAME}VERSION\"
+ − 163
+ − 164 # If there is no ETAGSVERSION, EMACSCLIENTVERSION, etc, then look for
+ − 165 # EMACSVERSION, XEMACSVERSION, or whatever the current variant is.
+ − 166 case "$version" in
+ − 167 '' )
+ − 168 case "$progname" in
+ − 169 ispell )
+ − 170 # If this is ispell and ISPELLVERSION isn't set, just use 3.1.
+ − 171 # We could run this script recursively with a flag indicating to
+ − 172 # find the current emacs variant and version and just print it out,
+ − 173 # but that is a very pathological case and is a lot of work.
+ − 174 version=3.1 ;;
+ − 175 * )
+ − 176 variant=`echo "$VARIANT" | sed -e "$sed_upcase"`
+ − 177 eval version=\"\$${variant}VERSION\"
+ − 178 case "$version" in
+ − 179 '' ) version="$DEFAULTVERSION" ;;
+ − 180 esac
+ − 181 ;;
+ − 182 esac
+ − 183 esac
+ − 184
+ − 185 case "$version" in
+ − 186 [Oo][Ll][Dd][Ee][Ss][Tt]) version="$oldest" ;;
+ − 187 [Nn][Ee][Ww][Ee][Ss][Tt]) version="$newest" ;;
+ − 188 '') version="$oldest" ;;
+ − 189 *)
+ − 190 if [ ! -d "$prefix/$eprefix$version" ] ; then
+ − 191 echo "$progname: $version: Cannot find requested version." 1>&2
+ − 192 version=
+ − 193 fi
+ − 194 ;;
+ − 195 esac
+ − 196
+ − 197 # If we don't have a version by now, then give up.
+ − 198 if [ "$version" = "" ] ; then
+ − 199 exec 1>&2
+ − 200 echo "$progname: Cannot determine which version to use."
+ − 201 case "$availversions" in
+ − 202 */* )
+ − 203 echo "Available versions are:"
+ − 204 for f in $availversions; do
+ − 205 echo " $f"
+ − 206 done | sort
+ − 207 ;;
+ − 208 * )
+ − 209 echo "Available versions are:" $availversions
+ − 210 ;;
+ − 211 esac
+ − 212 exit 1
+ − 213 fi
+ − 214
+ − 215 case "$progname" in
+ − 216 emacs | lemacs | xemacs | mule )
+ − 217 EMACSVARIANT=$progname
+ − 218 eval ${PROGNAME}VERSION=$version
+ − 219 eval export EMACSVARIANT ${PROGNAME}VERSION
+ − 220
+ − 221 case "$EMACSVARIANT-$version" in
+ − 222 emacs-18* ) ISPELLVERSION=4.0 ;;
+ − 223 emacs-19.[0-9] ) ISPELLVERSION=4.0 ;;
+ − 224 emacs-19.1[0-9] ) ISPELLVERSION=4.0 ;;
+ − 225 emacs-19.2[0-2] ) ISPELLVERSION=4.0 ;;
+ − 226 emacs-19.2[3-9] ) ISPELLVERSION=3.1 ;;
+ − 227 emacs-* ) ISPELLVERSION=3.1 ;;
+ − 228
+ − 229 lemacs-19.[0-9] ) ISPELLVERSION=3.0.09 ;;
+ − 230 lemacs-19.10 ) ISPELLVERSION=3.1 ;;
+ − 231
+ − 232 xemacs-* ) ISPELLVERSION=3.1 ;;
+ − 233
+ − 234 mule-* ) ISPELLVERSION=3.1 ;;
+ − 235 esac
+ − 236 export ISPELLVERSION
+ − 237 ;;
+ − 238 esac
+ − 239
+ − 240 case "$progname" in
+ − 241 xemacs )
+ − 242 # xemacs expects to use the keysym database in /usr/openwin, but that
+ − 243 # database doesn't define many of the keysyms it uses. Unless the user
+ − 244 # has already defined their own, specify the keysym database in X11.
+ − 245 XKEYSYMDB="${XKEYSYMDB-/usr/local/X11/lib/X11/XKeysymDB}"
+ − 246 export XKEYSYMDB
+ − 247
+ − 248 # Some versions of xemacs (e.g. 19.12) are dynamically linked against
+ − 249 # the openwin tooltalk library (libtt.so), so add openwin to the
+ − 250 # dynamic load path if necessary.
+ − 251 case "$LD_LIBRARY_PATH" in
+ − 252 *'/usr/openwin/lib'* ) : ;;
+ − 253 '' )
+ − 254 LD_LIBRARY_PATH=/usr/local/X11R5/lib:/usr/openwin/lib:/lib
+ − 255 export LD_LIBRARY_PATH
+ − 256 ;;
+ − 257 * )
+ − 258 LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/openwin/lib"
+ − 259 export LD_LIBRARY_PATH
+ − 260 ;;
+ − 261 esac
+ − 262 ;;
+ − 263 esac
+ − 264
+ − 265 # Set up the MANPATH so that the man pages for this version
+ − 266 # are searched first
+ − 267 if [ -d $prefix/$eprefix$version/man ] ; then
+ − 268 MANPATH=$prefix/$eprefix$version/man:$MANPATH
+ − 269 export MANPATH
+ − 270 fi
+ − 271
+ − 272 # There is no need to do this, and it can potentially cause problems,
+ − 273 # especially if a program like `xemacs' exists in that directory and gets
+ − 274 # run in subshells instead of this script.
+ − 275 #PATH=$prefix/$eprefix$version/bin:$PATH
+ − 276 #export PATH
+ − 277
+ − 278 searchdirs=`exec 2> /dev/null
+ − 279 cd $prefix/$eprefix$version \
+ − 280 && find bin \
+ − 281 libexec/$VARIANT/$version/* \
+ − 282 lib/$VARIANT/$version/* \
+ − 283 lib/$VARIANT-$version/* \
+ − 284 lib/$VARIANT/etc \
+ − 285 lib/etc \
+ − 286 -type d -print`
+ − 287
+ − 288 for dir in $searchdirs ; do
+ − 289 for p in $progname-$version $progname ; do
+ − 290 prog="$prefix/$eprefix$version/$dir/$p"
+ − 291
+ − 292 if test -f "$prog" ; then
+ − 293 case "${EMACS_FE_PRINT+set}" in
+ − 294 set )
+ − 295 echo "$prog"
+ − 296 exit 0
+ − 297 ;;
+ − 298 esac
+ − 299
+ − 300 exec "$prog" ${1+"$@"}
+ − 301 fi
+ − 302 done
+ − 303 done
+ − 304
+ − 305 exec 1>&2
+ − 306
+ − 307 echo "$progname: Cannot find $bq$progname-$version$eq or $bq$progname$eq in"
+ − 308
+ − 309 for d in $searchdirs ; do
+ − 310 ls -1d $prefix/$eprefix$version/$d 2> /dev/null \
+ − 311 | sed -e "s/^/$progname: /"
+ − 312 done
+ − 313
+ − 314 exit 1
+ − 315
+ − 316 # emacs-fe ends here
