From c9b74c175ad4502245cace41464aba69f8a1eaec Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Sun, 2 Feb 2014 10:25:53 -0600
Subject: Add an EMACS-like command line editor that can be used wit NSH

---
 apps/nshlib/Kconfig | 30 +++++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

(limited to 'apps/nshlib/Kconfig')

diff --git a/apps/nshlib/Kconfig b/apps/nshlib/Kconfig
index 7fb6a52b3..8a9d1e900 100644
--- a/apps/nshlib/Kconfig
+++ b/apps/nshlib/Kconfig
@@ -6,13 +6,37 @@
 config NSH_LIBRARY
 	bool "NSH Library"
 	default n
-	select SYSTEM_READLINE
 	---help---
-		Build the NSH support library.  This is used, for example, by examples/nsh
-		in order to implement the full NuttShell (NSH).
+		Build the NSH support library.  This is used, for example, by
+		examples/nsh in order to implement the full NuttShell (NSH).
 
 if NSH_LIBRARY
 
+choice
+	prompt "Command Line Editor"
+	default NSH_READLINE
+
+config NSH_READLINE
+	bool "Minimal readline()"
+	select SYSTEM_READLINE
+	---help---
+		Selects the minimal implementation of readline().  This minimal
+		implementation provides on backspace for command line editing.
+
+config NSH_CLE
+	bool "Command Line Editor"
+	select SYSTEM_CLE
+	---help---
+		Selects the more extensive, EMACS-like command line editor.
+		Select this option only if (1) you don't mind a modest increase
+		in the FLASH footprint, and (2) you work with a terminal that
+		support VT100 editing commands.
+
+		Selecting this option will add probably 1.5-2KB to the FLASH
+		footprint.
+
+endchoice
+
 config NSH_BUILTIN_APPS
 	bool "Enable built-in applications"
 	default n
-- 
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