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-rwxr-xr-xexamples/scripts/shprompt153
1 files changed, 153 insertions, 0 deletions
diff --git a/examples/scripts/shprompt b/examples/scripts/shprompt
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+++ b/examples/scripts/shprompt
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+#
+# shprompt -- give a prompt and get an answer satisfying certain criteria
+#
+# shprompt [-dDfFsy] prompt
+# s = prompt for string
+# f = prompt for filename
+# F = prompt for full pathname to a file or directory
+# d = prompt for a directory name
+# D = prompt for a full pathname to a directory
+# y = prompt for y or n answer
+#
+# Chet Ramey
+# chet@ins.CWRU.Edu
+#
+# Copyright 2002 Chester Ramey
+#
+# 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.
+#
+# TThis 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, write to the Free Software Foundation,
+# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+type=file
+
+OPTS=dDfFsy
+
+succeed()
+{
+ echo "$1"
+ exit 0
+}
+
+while getopts "$OPTS" c
+do
+ case "$c" in
+ s) type=string
+ ;;
+ f) type=file
+ ;;
+ F) type=path
+ ;;
+ d) type=dir
+ ;;
+ D) type=dirpath
+ ;;
+ y) type=yesno
+ ;;
+ ?) echo "usage: $0 [-$OPTS] prompt" 1>&2
+ exit 2
+ ;;
+ esac
+done
+
+if [ "$OPTIND" -gt 1 ] ; then
+ shift $(( $OPTIND - 1 ))
+fi
+
+while :
+do
+ case "$type" in
+ string)
+ echo -n "$1" 1>&2
+ read ans || exit 1
+ if [ -n "$ans" ] ; then
+ succeed "$ans"
+ fi
+ ;;
+ file|path)
+ echo -n "$1" 1>&2
+ read ans || exit 1
+ #
+ # use `fn' and eval so that bash will do tilde expansion for
+ # me
+ #
+ eval fn="$ans"
+ case "$fn" in
+ /*) if test -e "$fn" ; then
+ succeed "$fn"
+ else
+ echo "$0: '$fn' does not exist" 1>&2
+ fi
+ ;;
+ *) if [ "$type" = "path" ] ; then
+ echo "$0: must give full pathname to file" 1>&2
+ else
+ if test -e "$fn" ; then
+ succeed "$fn"
+ else
+ echo "$0: '$fn' does not exist" 1>&2
+ fi
+ fi
+ ;;
+ esac
+ ;;
+ dir|dirpath)
+ echo -n "$1" 1>&2
+ read ans || exit 1
+ #
+ # use `fn' and eval so that bash will do tilde expansion for
+ # me
+ #
+ eval fn="$ans"
+ case "$fn" in
+ /*) if test -d "$fn" ; then
+ succeed "$fn"
+ elif test -e "$fn" ; then
+ echo "$0 '$fn' is not a directory" 1>&2
+ else
+ echo "$0: '$fn' does not exist" 1>&2
+ fi
+ ;;
+ *) if [ "$type" = "dirpath" ] ; then
+ echo "$0: must give full pathname to directory" 1>&2
+ else
+ if test -d "$fn" ; then
+ succeed "$fn"
+ elif test -e "$fn" ; then
+ echo "$0 '$fn' is not a directory" 1>&2
+ else
+ echo "$0: '$fn' does not exist" 1>&2
+ fi
+ fi
+ ;;
+ esac
+ ;;
+ yesno)
+ echo -n "$1" 1>&2
+ read ans || exit 1
+ case "$ans" in
+ y|Y|[yY][eE][sS])
+ succeed "yes"
+ ;;
+ n|N|[nN][oO])
+ succeed "no"
+ exit 0
+ ;;
+ *)
+ echo "$0: yes or no required" 1>&2
+ ;;
+ esac
+ ;;
+ esac
+done
+
+exit 1