perl 2.0 (no announcement message available)perl-2.0

Some of the enhancements from Perl1 included:

    * New regexp routines derived from Henry Spencer's.
          o Support for /(foo|bar)/.
          o Support for /(foo)*/ and /(foo)+/.
          o \s for whitespace, \S for non-, \d for digit, \D nondigit 
    * Local variables in blocks, subroutines and evals.
    * Recursive subroutine calls are now supported.
    * Array values may now be interpolated into lists: unlink 'foo', 'bar', @trashcan, 'tmp';
    * File globbing.
    * Use of <> in array contexts returns the whole file or glob list.
    * New iterator for normal arrays, foreach, that allows both read and write.
    * Ability to open pipe to a forked off script for secure pipes in setuid scripts.
    * File inclusion via do 'foo.pl';
    * More file tests, including -t to see if, for instance, stdin is a terminal. File tests now behave in a more correct manner. You can do file tests on filehandles as well as filenames. The special filetests -T and -B test a file to see if it's text or binary.
    * An eof can now be used on each file of the <> input for such purposes as resetting the line numbers or appending to each file of an inplace edit.
    * Assignments can now function as lvalues, so you can say things like ($HOST = $host) =~ tr/a-z/A-Z/; ($obj = $src) =~ s/\.c$/.o/;
    * You can now do certain file operations with a variable which holds the name of a filehandle, e.g. open(++$incl,$includefilename); $foo = <$incl>;
    * Warnings are now available (with -w) on use of uninitialized variables and on identifiers that are mentioned only once, and on reference to various undefined things.
    * There is now a wait operator.
    * There is now a sort operator.
    * The manual is now not lying when it says that perl is generally faster than sed. I hope.

1 files changed, 26 insertions, 2 deletions

diff --git a/t/cmd.for b/t/cmd.for
index 769bec28bb..6342c89586 100644
--- a/t/cmd.for
+++ b/t/cmd.for
@@ -1,8 +1,8 @@
 #!./perl
 
-# $Header: cmd.for,v 1.0 87/12/18 13:12:05 root Exp $
+# $Header: cmd.for,v 2.0 88/06/05 00:12:19 root Exp $
 
-print "1..2\n";
+print "1..7\n";
 
 for ($i = 0; $i <= 10; $i++) {
     $x[$i] = $i;
@@ -23,3 +23,27 @@ for (;;) {
 	last if $i++ > 10;
 }
 if ($c == 12) {print "ok 2\n";} else {print "not ok 2\n";}
+
+$foo = 3210;
+@ary = (1,2,3,4,5);
+foreach $foo (@ary) {
+	$foo *= 2;
+}
+if (join('',@ary) eq '246810') {print "ok 3\n";} else {print "not ok 3\n";}
+
+for (@ary) {
+    s/(.*)/ok $1\n/;
+}
+
+print $ary[1];
+
+# test for internal scratch array generation
+# this also tests that $foo was restored to 3210 after test 3
+for (split(' ','a b c d e')) {
+	$foo .= $_;
+}
+if ($foo eq '3210abcde') {print "ok 5\n";} else {print "not ok 5\n";}
+
+foreach $foo (("ok 6\n","ok 7\n")) {
+	print $foo;
+}