echo et al: support \e escape

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/libbb/process_escape_sequence.c b/libbb/process_escape_sequence.c
index 11059d1a5204ffa87f02dc89a16aa2e46c9333c2..3ad908b57e07b14eb878b672a2eb7c1d4c378bb1 100644 (file)
--- a/libbb/process_escape_sequence.c
+++ b/libbb/process_escape_sequence.c
@@ -20,10 +20,11 @@ char FAST_FUNC bb_process_escape_sequence(const char **ptr)
 {
        /* bash builtin "echo -e '\ec'" interprets \e as ESC,
         * but coreutils "/bin/echo -e '\ec'" does not.
-        * manpages tend to support coreutils way. */
+        * manpages tend to support coreutils way.
+        * Update: coreutils added support for \e on 28 Oct 2009. */
        static const char charmap[] ALIGN1 = {
-               'a',  'b', /*'e',*/ 'f',  'n',  'r',  't',  'v',  '\\', 0,
-               '\a', '\b', /*27,*/ '\f', '\n', '\r', '\t', '\v', '\\', '\\' };
+               'a',  'b', 'e', 'f',  'n',  'r',  't',  'v',  '\\', 0,
+               '\a', '\b', 27, '\f', '\n', '\r', '\t', '\v', '\\', '\\' };
 
        const char *p;
        const char *q;