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[src/trunk]: src/games/countmail countmail: remove outdated comments



details:   https://anonhg.NetBSD.org/src/rev/e38e546729e6
branches:  trunk
changeset: 1021009:e38e546729e6
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sun May 02 13:10:36 2021 +0000

description:
countmail: remove outdated comments

Using the shell builtin 'read' command was necessarily slow because it
is specified to read a single byte at a time.

diffstat:

 games/countmail/countmail |  25 +++----------------------
 1 files changed, 3 insertions(+), 22 deletions(-)

diffs (42 lines):

diff -r 3b1b7b74101b -r e38e546729e6 games/countmail/countmail
--- a/games/countmail/countmail Sun May 02 12:50:43 2021 +0000
+++ b/games/countmail/countmail Sun May 02 13:10:36 2021 +0000
@@ -1,5 +1,5 @@
 #!/bin/sh
-#      $NetBSD: countmail,v 1.7 2008/04/28 20:22:53 martin Exp $
+#      $NetBSD: countmail,v 1.8 2021/05/02 13:10:36 rillig Exp $
 
 #
 # Copyright (c) 1998, 2002 The NetBSD Foundation, Inc.
@@ -30,29 +30,10 @@
 # POSSIBILITY OF SUCH DAMAGE.
 #
 
-# Count the messages in your mailbox, using only POSIX shell builtins.
-#
-# Caveats:
+# Count the messages in your mailbox.
 #
-# The read loop is horrendously slow on every implementation I've
-# tried.  I suggest using from(1) and wc(1) instead, though these are
-# not shell builtins.
-
-# for krb.
-#set -- `from -t`
-#v=$3
-set -- `from 2>/dev/null |wc -l`
+set -- `from 2>/dev/null | wc -l`
 v=$1
-#v=`from | wc -l`
-
-#v=0
-#exec 0</var/mail/$USER
-#while read line; do
-#  case "$line" in
-#    "From "*) v=$(($v + 1)) ;;
-#  esac
-#done
-#exec 0<&-
 
 set --
 g=0



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