m/.*$/ etc should be m/.*\z/s in many file handling modules; fix

these insidious errors in File::Basename, File::Find and find2perl
(from Tom Christiansen)

TODO: many other modules need to be fixed as well!

p4raw-id: //depot/perl@5296

2 files changed, 29 insertions, 29 deletions

diff --git a/lib/File/Basename.pm b/lib/File/Basename.pm
index da2caee849..4581e7e93c 100644
--- a/lib/File/Basename.pm
+++ b/lib/File/Basename.pm
@@ -37,10 +37,10 @@ If the argument passed to it contains one of the substrings
 "VMS", "MSDOS", "MacOS", "AmigaOS" or "MSWin32", the file specification 
 syntax of that operating system is used in future calls to 
 fileparse(), basename(), and dirname().  If it contains none of
-these substrings, UNIX syntax is used.  This pattern matching is
+these substrings, Unix syntax is used.  This pattern matching is
 case-insensitive.  If you've selected VMS syntax, and the file
 specification you pass to one of these routines contains a "/",
-they assume you are using UNIX emulation and apply the UNIX syntax
+they assume you are using Unix emulation and apply the Unix syntax
 rules instead, for that function call only.
 
 If the argument passed to it contains one of the substrings "VMS",
@@ -73,7 +73,7 @@ file as the input file specification.
 
 =head1 EXAMPLES
 
-Using UNIX file syntax:
+Using Unix file syntax:
 
     ($base,$path,$type) = fileparse('/virgil/aeneid/draft.book7',
 				    '\.book\d+');
@@ -102,7 +102,7 @@ would yield
 The basename() routine returns the first element of the list produced
 by calling fileparse() with the same arguments, except that it always
 quotes metacharacters in the given suffixes.  It is provided for
-programmer compatibility with the UNIX shell command basename(1).
+programmer compatibility with the Unix shell command basename(1).
 
 =item C<dirname>
 
@@ -111,8 +111,8 @@ specification.  When using VMS or MacOS syntax, this is identical to the
 second element of the list produced by calling fileparse() with the same
 input file specification.  (Under VMS, if there is no directory information
 in the input file specification, then the current default device and
-directory are returned.)  When using UNIX or MSDOS syntax, the return
-value conforms to the behavior of the UNIX shell command dirname(1).  This
+directory are returned.)  When using Unix or MSDOS syntax, the return
+value conforms to the behavior of the Unix shell command dirname(1).  This
 is usually the same as the behavior of fileparse(), but differs in some
 cases.  For example, for the input file specification F<lib/>, fileparse()
 considers the directory name to be F<lib/>, while dirname() considers the
@@ -172,23 +172,23 @@ sub fileparse {
   if ($fstype =~ /^VMS/i) {
     if ($fullname =~ m#/#) { $fstype = '' }  # We're doing Unix emulation
     else {
-      ($dirpath,$basename) = ($fullname =~ /^(.*[:>\]])?(.*)/);
+      ($dirpath,$basename) = ($fullname =~ /^(.*[:>\]])?(.*)/s);
       $dirpath ||= '';  # should always be defined
     }
   }
   if ($fstype =~ /^MS(DOS|Win32)/i) {
-    ($dirpath,$basename) = ($fullname =~ /^((?:.*[:\\\/])?)(.*)/);
-    $dirpath .= '.\\' unless $dirpath =~ /[\\\/]$/;
+    ($dirpath,$basename) = ($fullname =~ /^((?:.*[:\\\/])?)(.*)/s);
+    $dirpath .= '.\\' unless $dirpath =~ /[\\\/]\z/;
   }
-  elsif ($fstype =~ /^MacOS/i) {
-    ($dirpath,$basename) = ($fullname =~ /^(.*:)?(.*)/);
+  elsif ($fstype =~ /^MacOS/si) {
+    ($dirpath,$basename) = ($fullname =~ /^(.*:)?(.*)/s);
   }
   elsif ($fstype =~ /^AmigaOS/i) {
-    ($dirpath,$basename) = ($fullname =~ /(.*[:\/])?(.*)/);
+    ($dirpath,$basename) = ($fullname =~ /(.*[:\/])?(.*)/s);
     $dirpath = './' unless $dirpath;
   }
   elsif ($fstype !~ /^VMS/i) {  # default to Unix
-    ($dirpath,$basename) = ($fullname =~ m#^(.*/)?(.*)#);
+    ($dirpath,$basename) = ($fullname =~ m#^(.*/)?(.*)#s);
     if ($^O eq 'VMS' and $fullname =~ m:/[^/]+/000000/?:) {
       # dev:[000000] is top of VMS tree, similar to Unix '/'
       ($basename,$dirpath) = ('',$fullname);
@@ -200,7 +200,7 @@ sub fileparse {
     $tail = '';
     foreach $suffix (@suffices) {
       my $pat = ($igncase ? '(?i)' : '') . "($suffix)\$";
-      if ($basename =~ s/$pat//) {
+      if ($basename =~ s/$pat//s) {
         $taint .= substr($suffix,0,0);
         $tail = $1 . $tail;
       }
@@ -238,30 +238,30 @@ sub dirname {
     }
     if ($fstype =~ /MacOS/i) { return $dirname }
     elsif ($fstype =~ /MSDOS/i) { 
-        $dirname =~ s/([^:])[\\\/]*$/$1/;
+        $dirname =~ s/([^:])[\\\/]*\z/$1/;
         unless( length($basename) ) {
 	    ($basename,$dirname) = fileparse $dirname;
-	    $dirname =~ s/([^:])[\\\/]*$/$1/;
+	    $dirname =~ s/([^:])[\\\/]*\z/$1/;
 	}
     }
     elsif ($fstype =~ /MSWin32/i) { 
-        $dirname =~ s/([^:])[\\\/]*$/$1/;
+        $dirname =~ s/([^:])[\\\/]*\z/$1/;
         unless( length($basename) ) {
 	    ($basename,$dirname) = fileparse $dirname;
-	    $dirname =~ s/([^:])[\\\/]*$/$1/;
+	    $dirname =~ s/([^:])[\\\/]*\z/$1/;
 	}
     }
     elsif ($fstype =~ /AmigaOS/i) {
-        if ( $dirname =~ /:$/) { return $dirname }
+        if ( $dirname =~ /:\z/) { return $dirname }
         chop $dirname;
-        $dirname =~ s#[^:/]+$## unless length($basename);
+        $dirname =~ s#[^:/]+\z## unless length($basename);
     }
     else { 
-        $dirname =~ s:(.)/*$:$1:;
+        $dirname =~ s:(.)/*\z:$1:s;
         unless( length($basename) ) {
 	    local($File::Basename::Fileparse_fstype) = $fstype;
 	    ($basename,$dirname) = fileparse $dirname;
-	    $dirname =~ s:(.)/*$:$1:;
+	    $dirname =~ s:(.)/*\z:$1:s;
 	}
     }
 
diff --git a/lib/File/Find.pm b/lib/File/Find.pm
index 42905dec80..074cff3c71 100644
--- a/lib/File/Find.pm
+++ b/lib/File/Find.pm
@@ -135,7 +135,7 @@ This library is useful for the C<find2perl> tool, which when fed,
 produces something like:
 
     sub wanted {
-        /^\.nfs.*$/ &&
+        /^\.nfs.*\z/s &&
         (($dev, $ino, $mode, $nlink, $uid, $gid) = lstat($_)) &&
         int(-M _) > 7 &&
         unlink($_)
@@ -306,7 +306,7 @@ sub _find_opt {
     Proc_Top_Item:
     foreach my $TOP (@_) {
         my $top_item = $TOP;
-        $top_item =~ s|/$||  unless $top_item eq '/';
+        $top_item =~ s|/\z|| unless $top_item eq '/';
         $Is_Dir= 0;
         
         ($topdev,$topino,$topmode,$topnlink) = stat $top_item;
@@ -338,7 +338,7 @@ sub _find_opt {
                 next Proc_Top_Item;
             }
             if (-d _) {
-		$top_item =~ s/\.dir$// if $Is_VMS;
+		$top_item =~ s/\.dir\z// if $Is_VMS;
 		_find_dir($wanted, $top_item, $topnlink);
 		$Is_Dir= 1;
             }
@@ -466,7 +466,7 @@ sub _find_dir($$$) {
 	if ($nlink == 2 && !$avoid_nlink) {
 	    # This dir has no subdirectories.
 	    for my $FN (@filenames) {
-		next if $FN =~ /^\.{1,2}$/;
+		next if $FN =~ /^\.{1,2}\z/;
 		
 		$name = $dir_pref . $FN;
 		$_ = ($no_chdir ? $name : $FN);
@@ -479,7 +479,7 @@ sub _find_dir($$$) {
 	    $subcount = $nlink - 2;
 
 	    for my $FN (@filenames) {
-		next if $FN =~ /^\.{1,2}$/;
+		next if $FN =~ /^\.{1,2}\z/;
 		if ($subcount > 0 || $avoid_nlink) {
 		    # Seen all the subdirs?
 		    # check for directoriness.
@@ -488,7 +488,7 @@ sub _find_dir($$$) {
 
 		    if (-d _) {
 			--$subcount;
-			$FN =~ s/\.dir$// if $Is_VMS;
+			$FN =~ s/\.dir\z// if $Is_VMS;
 			push @Stack,[$CdLvl,$dir_name,$FN,$sub_nlink];
 		    }
 		    else {
@@ -609,7 +609,7 @@ sub _find_dir_symlnk($$$) {
 	closedir(DIR);
 
 	for my $FN (@filenames) {
-	    next if $FN =~ /^\.{1,2}$/;
+	    next if $FN =~ /^\.{1,2}\z/;
 
 	    # follow symbolic links / do an lstat
 	    $new_loc = Follow_SymLink($loc_pref.$FN);