Remove vestiges of tr//CU.

Subject: [ID 20000912.009] perlunicode.pod still mentions tr///CU
From: Nick Clark <nick@plum.flirble.org>
Date: Tue, 12 Sep 2000 22:50:14 +0100
Message-Id: <E13YxwU-000DDQ-00@plum.flirble.org>

Subject: Re: [ID 20000912.009] perlunicode.pod still mentions tr///CU
From: sthoenna@efn.org (Yitzchak Scott-Thoennes)
Date: Tue, 12 Sep 2000 21:38:48 -0700
Message-ID: <YTwv5gzkgmfL092yn@efn.org>

p4raw-id: //depot/perl@7069

diff --git a/op.h b/op.h
index 110fbef..55b85a5 100644 (file)
--- a/op.h
+++ b/op.h
@@ -130,9 +130,7 @@ Deprecated.  Use C<GIMME_V> instead.
 /* Private for OP_TRANS */
 #define OPpTRANS_FROM_UTF      1
 #define OPpTRANS_TO_UTF                2
-#define OPpTRANS_IDENTICAL     4
-       /* When CU or UC, means straight latin-1 to utf-8 or vice versa */
-       /* Otherwise, IDENTICAL means the right side is the same as the left */
+#define OPpTRANS_IDENTICAL     4       /* right side is same as left */
 #define OPpTRANS_SQUASH                8
 #define OPpTRANS_DELETE                16
 #define OPpTRANS_COMPLEMENT    32

diff --git a/pod/perlunicode.pod b/pod/perlunicode.pod
index c686661..c9954d8 100644 (file)
--- a/pod/perlunicode.pod
+++ b/pod/perlunicode.pod
@@ -157,20 +157,10 @@ C<(?:\PM\pM*)>.
 
 =item *
 
-The C<tr///> operator translates characters instead of bytes.  It can also
-be forced to translate between 8-bit codes and UTF-8.  For instance, if you
-know your input in Latin-1, you can say:
-
-    while (<>) {
-       tr/\0-\xff//CU;         # latin1 char to utf8
-       ...
-    }
-
-Similarly you could translate your output with
-
-    tr/\0-\x{ff}//UC;          # utf8 to latin1 char
-
-No, C<s///> doesn't take /U or /C (yet?).
+The C<tr///> operator translates characters instead of bytes.  Note
+that the C<tr///CU> functionality has been removed, as the interface
+was a mistake.  For similar functionality see pack('U0', ...) and
+pack('C0', ...).
 
 =item *