X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2Fabbrev.pl;h=c505a6f28bd7bb79152fd90fc57fd0e6cbf83f0c;hb=dd5ea221bb13f4bad856ba91d1a82acf3ec12919;hp=5859a7be48d8f0376fe231b94b8557c86d6d742c;hpb=a687059cbaf2c6fdccb5e0fae2aee80ec15625a8;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/lib/abbrev.pl b/lib/abbrev.pl
index 5859a7b..c505a6f 100644
--- a/lib/abbrev.pl
+++ b/lib/abbrev.pl
@@ -4,19 +4,30 @@
 ;#	...
 ;#	$long = $foo{$short};
 
+#
+# This library is no longer being maintained, and is included for backward
+# compatibility with Perl 4 programs which may require it.
+#
+# In particular, this should not be used as an example of modern Perl
+# programming techniques.
+#
+# Suggested alternative: Text::Abbrev
+#
+
 package abbrev;
 
 sub main'abbrev {
     local(*domain) = @_;
     shift(@_);
     @cmp = @_;
+    local($[) = 0;
     foreach $name (@_) {
 	@extra = split(//,$name);
 	$abbrev = shift(@extra);
 	$len = 1;
 	foreach $cmp (@cmp) {
 	    next if $cmp eq $name;
-	    while (substr($cmp,0,$len) eq $abbrev) {
+	    while (@extra && substr($cmp,0,$len) eq $abbrev) {
 		$abbrev .= shift(@extra);
 		++$len;
 	    }