X-Git-Url: http://cloudbase.mooo.com/gitweb/z180-stamp.git/blobdiff_plain/b0e4f7e5bf9f344a9ef4642a3ce3441ada206941..ed7d7fd35e5cf408fd9cf7e900308b4ce318be7c:/avr/cli.c

diff --git a/avr/cli.c b/avr/cli.c
index 046859c..43b5be0 100644
--- a/avr/cli.c
+++ b/avr/cli.c
@@ -1,3 +1,16 @@
+/*
+ * (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Add to readline cmdline-editing by
+ * (C) Copyright 2005
+ * JinHua Luo, GuangDong Linux Center, <luo.jinhua@gd-linux.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
 #include "common.h"
 
 #include <string.h>
@@ -14,6 +27,9 @@
 #include "con-utils.h"
 #include "cli.h"
 
+
+/* FIXME: Quoting problems */
+
 #define DEBUG_PARSER	0	/* set to 1 to debug */
 
 #define debug_parser(fmt, args...)		\
@@ -33,7 +49,7 @@ static int cli_parse_line(char *line, char *argv[])
 			inp++) {
 
 		switch (state) {
-		case 0:
+		case 0:						/* before arg string, waiting for arg start */
 			if (isblank(c))
 				continue;
 
@@ -42,7 +58,7 @@ static int cli_parse_line(char *line, char *argv[])
 			state = 1;
 			/* fall thru */
 
-		case 1:
+		case 1:						/* in arg string, waiting for end of arg string */
 			if (c == '\\') {
 				++state;
 				continue;
@@ -58,7 +74,7 @@ static int cli_parse_line(char *line, char *argv[])
 			}
 			break;
 
-		case 3:
+		case 3:						/* in quote */
 			if (c == '\\' && quote == '\"') {
 				++state;
 				continue;
@@ -69,7 +85,7 @@ static int cli_parse_line(char *line, char *argv[])
 			}
 			break;
 
-		case 2:
+		case 2:						/* waiting for next char */
 		case 4:
 			--state;
 			break;
@@ -239,12 +255,13 @@ static int cli_run_command(const char *cmd, int flag)
 		 */
 		for (inquotes = 0, sep = str; *sep; sep++) {
 			if ((*sep == '\'') &&
-			    (*(sep - 1) != '\\'))
+			    (sep != str) &&				/* past string start */
+			    (*(sep - 1) != '\\'))		/* and NOT escaped */
 				inquotes = !inquotes;
 
 			if (!inquotes &&
-			    (*sep == ';' || *sep == '\n') &&	/* separator		*/
-			    (sep != str) &&			/* past string start	*/
+			    (*sep == ';' || *sep == '\n') &&	/* separator */
+			    (sep != str) &&				/* past string start */
 			    (*(sep - 1) != '\\'))		/* and NOT escaped */
 				break;
 		}
@@ -296,7 +313,7 @@ static int cli_run_command_list(const char *cmd)
 
 
 /*
- * Run a command using the selected parser.
+ * Run a command.
  *
  * @param cmd	Command to run
  * @param flag	Execution flags (CMD_FLAG_...)