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-rw-r--r--bin/1sh/1sh.110
-rw-r--r--bin/1sh/histedit.c1
-rw-r--r--bin/1sh/parser.c84
-rw-r--r--bin/1sh/parser.h1
-rw-r--r--bin/1sh/var.c6
-rw-r--r--bin/1sh/var.h4
6 files changed, 80 insertions, 26 deletions
diff --git a/bin/1sh/1sh.1 b/bin/1sh/1sh.1
index 6c60c4ce..5ce17a5f 100644
--- a/bin/1sh/1sh.1
+++ b/bin/1sh/1sh.1
@@ -1442,6 +1442,16 @@ The prefix for the trace output (if
 is active).
 The default is
 .Dq Li "+ " .
+.It Va RPS1
+The primary right prompt string.
+.Va RPS1
+may include any of the formatting sequences from
+.Va PS1 .
+.It Va RPS2
+The secondary right prompt string.
+.Va RPS2
+may include any of the formatting sequences from
+.Va PS1 .
 .El
 .Ss Word Expansions
 This clause describes the various expansions that are
diff --git a/bin/1sh/histedit.c b/bin/1sh/histedit.c
index 74edf24f..bb2b14d1 100644
--- a/bin/1sh/histedit.c
+++ b/bin/1sh/histedit.c
@@ -122,6 +122,7 @@ histedit(void)
 				if (hist)
 					el_set(el, EL_HIST, history, hist);
 				el_set(el, EL_PROMPT, getprompt);
+				el_set(el, EL_RPROMPT, getrprompt);
 				el_set(el, EL_ADDFN, "sh-complete",
 				    "Filename completion",
 				    _el_fn_sh_complete);
diff --git a/bin/1sh/parser.c b/bin/1sh/parser.c
index 97d6f52a..b92b9462 100644
--- a/bin/1sh/parser.c
+++ b/bin/1sh/parser.c
@@ -1969,35 +1969,11 @@ pgetc_linecont(void)
 	return (c);
 }
 
-/*
- * called by editline -- any expansions to the prompt
- *    should be added here.
- */
-char *
-getprompt(void *unused __unused)
-{
+static char *
+expandprompt(const char *fmt) {
 	static char ps[PROMPTLEN];
-	const char *fmt;
 	const char *pwd;
 	int i, trim;
-	static char internal_error[] = "??";
-
-	/*
-	 * Select prompt format.
-	 */
-	switch (whichprompt) {
-	case 0:
-		fmt = "";
-		break;
-	case 1:
-		fmt = ps1val();
-		break;
-	case 2:
-		fmt = ps2val();
-		break;
-	default:
-		return internal_error;
-	}
 
 	/*
 	 * Format prompt string.
@@ -2077,6 +2053,62 @@ getprompt(void *unused __unused)
 	return (ps);
 }
 
+/*
+ * called by editline -- any expansions to the prompt
+ *    should be added here.
+ */
+char *
+getprompt(void *unused __unused)
+{
+	const char *fmt;
+	static char internal_error[] = "??";
+
+	/*
+	 * Select prompt format.
+	 */
+	switch (whichprompt) {
+	case 0:
+		fmt = "";
+		break;
+	case 1:
+		fmt = ps1val();
+		break;
+	case 2:
+		fmt = ps2val();
+		break;
+	default:
+		return internal_error;
+	}
+
+	return expandprompt(fmt);
+}
+
+char *
+getrprompt(void *unused __unused)
+{
+	const char *fmt;
+	static char internal_error[] = "??";
+
+	/*
+	 * Select prompt format.
+	 */
+	switch (whichprompt) {
+	case 0:
+		fmt = "";
+		break;
+	case 1:
+		fmt = rps1val();
+		break;
+	case 2:
+		fmt = rps2val();
+		break;
+	default:
+		return internal_error;
+	}
+
+	return expandprompt(fmt);
+}
+
 
 const char *
 expandstr(const char *ps)
diff --git a/bin/1sh/parser.h b/bin/1sh/parser.h
index de9d393a..171bc994 100644
--- a/bin/1sh/parser.h
+++ b/bin/1sh/parser.h
@@ -84,4 +84,5 @@ void fixredir(union node *, const char *, int);
 int goodname(const char *);
 int isassignment(const char *);
 char *getprompt(void *);
+char *getrprompt(void *);
 const char *expandstr(const char *);
diff --git a/bin/1sh/var.c b/bin/1sh/var.c
index 2c217399..f82da2e6 100644
--- a/bin/1sh/var.c
+++ b/bin/1sh/var.c
@@ -95,6 +95,8 @@ struct var vpath;
 struct var vps1;
 struct var vps2;
 struct var vps4;
+struct var vrps1;
+struct var vrps2;
 static struct var voptind;
 struct var vdisvfork;
 
@@ -121,6 +123,10 @@ static const struct varinit varinit[] = {
 	  NULL },
 	{ &vps4,	0,				"PS4=+ ",
 	  NULL },
+	{ &vrps1,	VUNSET,				"RPS1=",
+	  NULL },
+	{ &vrps2,	VUNSET,				"RPS2=",
+	  NULL },
 #ifndef NO_HISTORY
 	{ &vterm,	VUNSET,				"TERM=",
 	  setterm },
diff --git a/bin/1sh/var.h b/bin/1sh/var.h
index f36bdc68..cdec2ee0 100644
--- a/bin/1sh/var.h
+++ b/bin/1sh/var.h
@@ -80,6 +80,8 @@ extern struct var vpath;
 extern struct var vps1;
 extern struct var vps2;
 extern struct var vps4;
+extern struct var vrps1;
+extern struct var vrps2;
 extern struct var vdisvfork;
 #ifndef NO_HISTORY
 extern struct var vhistsize;
@@ -104,6 +106,8 @@ extern int initial_localeisutf8;
 #define ps1val()	(vps1.text + 4)
 #define ps2val()	(vps2.text + 4)
 #define ps4val()	(vps4.text + 4)
+#define rps1val()	(vrps1.text + 5)
+#define rps2val()	(vrps2.text + 5)
 #define optindval()	(voptind.text + 7)
 #ifndef NO_HISTORY
 #define histsizeval()	(vhistsize.text + 9)