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Diffstat (limited to 'mcon/U/Whoa.U')
| -rw-r--r-- | mcon/U/Whoa.U | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/mcon/U/Whoa.U b/mcon/U/Whoa.U new file mode 100644 index 0000000..abc0637 --- /dev/null +++ b/mcon/U/Whoa.U @@ -0,0 +1,51 @@ +?RCS: $Id$ +?RCS: +?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi +?RCS: +?RCS: You may redistribute only under the terms of the Artistic License, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic License; a copy of which may be found at the root +?RCS: of the source tree for dist 4.0. +?RCS: +?RCS: $Log: Whoa.U,v $ +?RCS: Revision 3.0.1.2 1997/02/28 15:21:21 ram +?RCS: patch61: whoa script now starts with leading "startsh" +?RCS: +?RCS: Revision 3.0.1.1 1994/10/29 16:02:01 ram +?RCS: patch36: added ?F: line for metalint file checking +?RCS: +?RCS: Revision 3.0 1993/08/18 12:05:19 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?X: +?X: This unit produces a bit of shell code that must be dotted in in order +?X: to warn the user in case a change into a variable is noticed. +?X: +?X: To use this unit, $was must hold the old value that has changed. Upon +?X: exit, the two variables $td and $tu are set to the correct value for +?X: respectively defining or undefining a variable. For instance, if $vas was +?X: $undef, but now $var is $define, after calling . whoa, you should use +?X: eval "$var=\$tu" to finally set $var to the correct value. See unit Inlibc. +?X: +?MAKE:Whoa: Myread startsh hint +?MAKE: -pick add $@ %< +?F:./whoa +?T:var was +?LINT:change td tu +: set up the script used to warn in case of inconsistency +cat <<EOS >whoa +$startsh +EOS +cat <<'EOSC' >>whoa +dflt=y +echo " " +echo "*** WHOA THERE!!! ***" >&4 +echo " The $hint value for \$$var on this machine was \"$was\"!" >&4 +rp=" Keep the $hint value?" +. ./myread +case "$ans" in +y) td=$was; tu=$was;; +esac +EOSC + |