Commit-ID: cb1a28a0cbf9dac5a7a0ca02ebebc12db260d2f8
Gitweb: http://git.kernel.org/tip/cb1a28a0cbf9dac5a7a0ca02ebebc12db260d2f8
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Thu, 7 Jun 2012 18:23:31 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 19 Jun 2012 13:06:19 -0300
perf lib: Introduce rtrim
Remove the trailing whitespaces.
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-8bxozh5lyixgjmziqaxo9675@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/string.c | 22 ++++++++++++++++++++++
tools/perf/util/util.h | 2 ++
2 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index d583638..199bc4d 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -313,3 +313,25 @@ int strtailcmp(const char *s1, const char *s2)
return 0;
}
+/**
+ * rtrim - Removes trailing whitespace from @s.
+ * @s: The string to be stripped.
+ *
+ * Note that the first trailing whitespace is replaced with a %NUL-terminator
+ * in the given string @s. Returns @s.
+ */
+char *rtrim(char *s)
+{
+ size_t size = strlen(s);
+ char *end;
+
+ if (!size)
+ return s;
+
+ end = s + size - 1;
+ while (end >= s && isspace(*end))
+ end--;
+ *(end + 1) = '\0';
+
+ return s;
+}
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 2daaedb..b13c733 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -264,4 +264,6 @@ bool is_power_of_2(unsigned long n)
size_t hex_width(u64 v);
+char *rtrim(char *s);
+
#endif
--
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