From 09a20db1f181c249644e4bea2848166acb855edf Mon Sep 17 00:00:00 2001
From: David Alexander Majnemer <dmajnem2@thecheat.acm.uiuc.edu>
Date: Wed, 27 Oct 2010 16:20:46 -0500
Subject: [PATCH] [answerback] add suppot to vim/term for putty

---
 commonsh/02_term | 11 +++++++++--
 install.pl       |  5 +++++
 vimrc            |  6 ++++--
 3 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/commonsh/02_term b/commonsh/02_term
index 91dd4ff..ce34a9d 100755
--- a/commonsh/02_term
+++ b/commonsh/02_term
@@ -66,8 +66,15 @@ if command -v infocmp >/dev/null 2>&1 ; then
 		;;
 	esac
 
-	if [ "${COLORTERM}" = "gnome-terminal" ]; then
-		TERM="xterm-256color"
+	if [ -n "${COLORTERM}" -o -n "${XTERM_VERSION}" -o -n "${TERM_PROGRAM}" ]; then
+		if [ "${COLORTERM}" = "gnome-terminal" ] ; then
+			TERM="xterm-256color"
+		fi
+	else
+		if command -v answerback >/dev/null 2>&1 ; then
+			ANSWERBACK=`answerback`
+			export ANSWERBACK
+		fi
 	fi
 
 	TERM=`fix_term $TERM`
diff --git a/install.pl b/install.pl
index e3b8aa1..0647de1 100755
--- a/install.pl
+++ b/install.pl
@@ -84,6 +84,8 @@ my %links = (
 	'git-info'            => 'bin/git-info',
 	'git-untrack-ignored' => 'bin/git-untracked-ignored',
 
+	answerback => 'bin/answerback',
+
 	gdbinit => '.gdbinit',
 );
 
@@ -94,6 +96,9 @@ if ($contained) {
 	($prefix) = $prefix =~ m{^\/? (.+) [^/]+ $}x;
 }
 
+`make answerback`;
+warn "Could not compile answerback.\n" if ($? != 0);
+
 my $i = 0; # Keep track of how many links we added
 for my $file (keys %links) {
 	# See if this file resides in a directory, and create it if needed.
diff --git a/vimrc b/vimrc
index c8037c8..90f6f9a 100644
--- a/vimrc
+++ b/vimrc
@@ -7,8 +7,10 @@ if has('multi_byte')      " Make sure we have unicode support
    scriptencoding utf-8    " This file is in UTF-8
 
    " ---- Terminal Setup ----
-   if (&termencoding == "" && (&term =~ "xterm" || &term =~ "putty")) || (&term =~ "rxvt-unicode") || (&term =~ "screen")
-      set termencoding=utf-8
+   if ($ANSWERBACK !=# "PuTTY")
+      if (&termencoding == "" && (&term =~ "xterm" || &term =~ "putty")) || (&term =~ "rxvt-unicode") || (&term =~ "screen")
+         set termencoding=utf-8
+      endif
    endif
    set encoding=utf-8      " Default encoding should always be UTF-8
 endif