X-Git-Url: http://cloudbase.mooo.com/gitweb/z180-stamp.git/blobdiff_plain/c647afca0ab5d67de1c18b52b4e50262fcb73425..cb4fb1ed02b59f798368a76f2596d7c24125e68a:/avr/cli_readline.c

diff --git a/avr/cli_readline.c b/avr/cli_readline.c
index 5545015..32c15c8 100644
--- a/avr/cli_readline.c
+++ b/avr/cli_readline.c
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
+ * (C) Copyright 2014-2016 Leo C. <erbl259-lmu@yahoo.de>
  *
  * (C) Copyright 2000
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
@@ -11,6 +11,7 @@
  * SPDX-License-Identifier:	GPL-2.0
  */
 
+#include "cli_readline.h"
 #include "common.h"
 #include <string.h>
 #include <stdio.h>
@@ -22,7 +23,6 @@
 #include "con-utils.h"
 #include "print-utils.h"
 #include "command.h"
-#include "cli_readline.h"
 
 
 
@@ -357,7 +357,8 @@ static void cread_add_str(char *str, int strsize, bool insert,
 	}
 }
 
-static int cread_line(const FLASH char *const prompt, char *buf, uint_fast8_t *len)
+static int cread_line(const FLASH char *const prompt, char *buf,
+			uint_fast8_t *len, bool enable_history)
 {
 	uint_fast8_t num = 0;
 	uint_fast8_t eol_num = 0;
@@ -455,32 +456,33 @@ static int cread_line(const FLASH char *const prompt, char *buf, uint_fast8_t *l
 		case CTL_CH('p'):			/* previous-history */
 		case KEY_DOWN:
 		case CTL_CH('n'):			/* next-history */
-		{
-			char *hline;
-
-			if (ichar == CTL_CH('p') || ichar == KEY_UP)
-				hline = hist_prev();
-			else
-				hline = hist_next();
-
-			if (!hline) {
+			if (enable_history) {
+				char *hline;
+
+				if (ichar == CTL_CH('p') || ichar == KEY_UP)
+					hline = hist_prev();
+				else
+					hline = hist_next();
+
+				if (hline) {
+					/* nuke the current line */
+					/* first, go home */
+					BEGINNING_OF_LINE();
+
+					/* erase to end of line */
+					ERASE_TO_EOL();
+
+					/* copy new line into place and display */
+					strcpy(buf, hline);
+					eol_num = strlen(buf);
+					REFRESH_TO_EOL();
+				} else {
+					getcmd_cbeep();
+				}
+			} else {
 				getcmd_cbeep();
-				continue;
 			}
-
-			/* nuke the current line */
-			/* first, go home */
-			BEGINNING_OF_LINE();
-
-			/* erase to end of line */
-			ERASE_TO_EOL();
-
-			/* copy new line into place and display */
-			strcpy(buf, hline);
-			eol_num = strlen(buf);
-			REFRESH_TO_EOL();
-			continue;
-		}
+			break;
 #ifdef CONFIG_AUTO_COMPLETE
 		case '\t': {
 			int num2, col;
@@ -512,16 +514,18 @@ static int cread_line(const FLASH char *const prompt, char *buf, uint_fast8_t *l
 	*len = eol_num;
 	buf[eol_num] = '\0';	/* lose the newline */
 
-	if (buf[0] /* && buf[0] != CREAD_HIST_CHAR */)
-		cread_add_to_hist(buf);
-	hist_cur = hist_add_idx;
-
+	if (enable_history) {
+		if (buf[0])
+			cread_add_to_hist(buf);
+		hist_cur = hist_add_idx;
+	}
 	return 0;
 }
 
 /****************************************************************************/
 
-static int cli_readline_into_buffer(const FLASH char *const prompt, char *buffer)
+static int cli_readline_into_buffer(const FLASH char *const prompt,
+			char *buffer, bool enable_history)
 {
 	char *p = buffer;
 	uint_fast8_t len = CONFIG_SYS_CBSIZE;
@@ -530,11 +534,11 @@ static int cli_readline_into_buffer(const FLASH char *const prompt, char *buffer
 	if (prompt)
 		my_puts_P(prompt);
 
-	rc = cread_line(prompt, p, &len);
+	rc = cread_line(prompt, p, &len, enable_history);
 	return rc < 0 ? rc : (int) len;
 }
 
-int cli_readline(const FLASH char *const prompt)
+int cli_readline(const FLASH char *const prompt, bool enable_history)
 {
 	/*
 	 * If console_buffer isn't 0-length the user will be prompted to modify
@@ -542,5 +546,5 @@ int cli_readline(const FLASH char *const prompt)
 	 */
 	console_buffer[0] = '\0';
 
-	return cli_readline_into_buffer(prompt, console_buffer);
+	return cli_readline_into_buffer(prompt, console_buffer, enable_history);
 }