[PATCH 18/20] perf tools: Add empty rule for new line in event syntax parsing

[Arnaldo Carvalho de Melo]

From: Jiri Olsa <jolsa@xxxxxxxxxx>

The flex generator prints out each input character that is ignored by
lex rules.

Since the alias processing, we can have '\n' characters on input. We
need to assign empty rule to it, so it's not printed out.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Corey Ashford <cjashfor@xxxxxxxxxxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1341352848-11833-2-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/parse-events.l |    1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index a066894..6cbe092 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -152,6 +152,7 @@ r{num_raw_hex}		{ return raw(yyscanner); }
 ,			{ return ','; }
 :			{ return ':'; }
 =			{ return '='; }
+\n			{ }
 
 <mem>{
 {modifier_bp}		{ return str(yyscanner, PE_MODIFIER_BP); }
-- 
1.7.9.2.358.g22243

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