From c9a8d34ec1f2c36e5e58153d91cfe1f485b902d8 Mon Sep 17 00:00:00 2001
From: Steven Rostedt <srostedt@redhat.com>
Date: Wed, 14 Oct 2009 15:43:33 -0400
Subject: [PATCH] --- yaml --- r: 169495 b: refs/heads/master c:
 91ff2bc191827f0d3f5ad0a433ff7df7d2dd9aee h: refs/heads/master i:   169493:
 fa8becd7e0dc490ee5edbcd2ad5cbcdd22c10b41   169491:
 888d12f029674cbb78d5d71e36dd237b913b8b9c   169487:
 cf644a8db105b1596be4b0f08d358e150d68c296 v: v3

---
 [refs]                                    |  2 +-
 trunk/tools/perf/util/trace-event-parse.c | 27 +++++++++++++++++++++--
 2 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/[refs] b/[refs]
index 6ebded3e9a2f..78506490e398 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 924a79af2cdee26a034b9bdce8c9c76995b5c901
+refs/heads/master: 91ff2bc191827f0d3f5ad0a433ff7df7d2dd9aee
diff --git a/trunk/tools/perf/util/trace-event-parse.c b/trunk/tools/perf/util/trace-event-parse.c
index a05c7144aded..2b75ec2f57e8 100644
--- a/trunk/tools/perf/util/trace-event-parse.c
+++ b/trunk/tools/perf/util/trace-event-parse.c
@@ -522,7 +522,10 @@ static enum event_type __read_token(char **tok)
 			last_ch = ch;
 			ch = __read_char();
 			buf[i++] = ch;
-		} while (ch != quote_ch && last_ch != '\\');
+			/* the '\' '\' will cancel itself */
+			if (ch == '\\' && last_ch == '\\')
+				last_ch = 0;
+		} while (ch != quote_ch || last_ch == '\\');
 		/* remove the last quote */
 		i--;
 		goto out;
@@ -2325,7 +2328,27 @@ static void pretty_print(void *data, int size, struct event *event)
 
 	for (; *ptr; ptr++) {
 		ls = 0;
-		if (*ptr == '%') {
+		if (*ptr == '\\') {
+			ptr++;
+			switch (*ptr) {
+			case 'n':
+				printf("\n");
+				break;
+			case 't':
+				printf("\t");
+				break;
+			case 'r':
+				printf("\r");
+				break;
+			case '\\':
+				printf("\\");
+				break;
+			default:
+				printf("%c", *ptr);
+				break;
+			}
+
+		} else if (*ptr == '%') {
 			saveptr = ptr;
 			show_func = 0;
  cont_process: