X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2Fpwd.pl;h=6b429eb5a6849d4c2975bd425fe5069e8c2323f1;hb=a06bfbf46ad8e21060b59ed409ba2f87fbfcdc35;hp=09ba1d2041db711f804703559346e7011039625f;hpb=fe14fcc35f78a371a174a1d14256c2f35ae4262b;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/lib/pwd.pl b/lib/pwd.pl
index 09ba1d2..6b429eb 100644
--- a/lib/pwd.pl
+++ b/lib/pwd.pl
@@ -1,17 +1,17 @@
 ;# pwd.pl - keeps track of current working directory in PWD environment var
 ;#
-;# $Header: pwd.pl,v 4.0 91/03/20 01:26:03 lwall Locked $
+#
+# 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: Cwd
+#
+;# $RCSfile: pwd.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:24:11 $
 ;#
 ;# $Log:	pwd.pl,v $
-;# Revision 4.0  91/03/20  01:26:03  lwall
-;# 4.0 baseline.
-;# 
-;# Revision 3.0.1.2  91/01/11  18:09:24  lwall
-;# patch42: some .pl files were missing their trailing 1;
-;# 
-;# Revision 3.0.1.1  90/08/09  04:01:24  lwall
-;# patch19: Initial revision
-;# 
 ;#
 ;# Usage:
 ;#	require "pwd.pl";
@@ -25,13 +25,25 @@ sub main'initpwd {
     if ($ENV{'PWD'}) {
 	local($dd,$di) = stat('.');
 	local($pd,$pi) = stat($ENV{'PWD'});
-	return if $di == $pi && $dd == $pd;
+	if (!defined $dd or !defined $pd or $di != $pi or $dd != $pd) {
+	    chop($ENV{'PWD'} = `pwd`);
+	}
+    }
+    else {
+	chop($ENV{'PWD'} = `pwd`);
+    }
+    if ($ENV{'PWD'} =~ m|(/[^/]+(/[^/]+/[^/]+))(.*)|) {
+	local($pd,$pi) = stat($2);
+	local($dd,$di) = stat($1);
+	if (defined $pd and defined $dd and $di == $pi and $dd == $pd) {
+	    $ENV{'PWD'}="$2$3";
+	}
     }
-    chop($ENV{'PWD'} = `pwd`);
 }
 
 sub main'chdir {
     local($newdir) = shift;
+    $newdir =~ s|/{2,}|/|g;
     if (chdir $newdir) {
 	if ($newdir =~ m#^/#) {
 	    $ENV{'PWD'} = $newdir;