From 2904d675a49cdd7cb2372f50592a6823106aa0f7 Mon Sep 17 00:00:00 2001
From: Pádraig Brady <P@draigBrady.com>
Date: Tue, 27 Oct 2009 10:04:34 +0000
Subject: echo, printf: interpret \e as the Escape character

Match gcc, perl, bash, ksh, tcsh, ... in supporting \e.
* src/printf.c (print_escape_char): Output \x1B when \e encountered.
* src/echo.c (main): Likewise.
* src/stat.c (print_escape_char): Likewise.
* doc/coreutils.texi (echo invocation): Add \e to the list.
* tests/misc/printf: Verify that \e outputs \x1B.
* NEWS: Mention the change in behaviour.
---
 src/echo.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/echo.c')

diff --git a/src/echo.c b/src/echo.c
index 90b978646..65e8c80e4 100644
--- a/src/echo.c
+++ b/src/echo.c
@@ -70,6 +70,7 @@ If -e is in effect, the following sequences are recognized:\n\
 "), stdout);
       fputs (_("\
   \\c     produce no further output\n\
+  \\e     escape\n\
   \\f     form feed\n\
   \\n     new line\n\
   \\r     carriage return\n\
@@ -203,6 +204,7 @@ just_echo:
                     case 'a': c = '\a'; break;
                     case 'b': c = '\b'; break;
                     case 'c': exit (EXIT_SUCCESS);
+                    case 'e': c = '\x1B'; break;
                     case 'f': c = '\f'; break;
                     case 'n': c = '\n'; break;
                     case 'r': c = '\r'; break;
-- 
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