Commit-ID: 45bfd0ac7bd2afa83600df9c1286a1642bb15c55 Gitweb: https://git.kernel.org/tip/45bfd0ac7bd2afa83600df9c1286a1642bb15c55 Author: Arnaldo Carvalho de Melo <a...@redhat.com> AuthorDate: Wed, 26 Jun 2019 11:50:16 -0300 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Wed, 26 Jun 2019 11:50:16 -0300
tools lib: Adopt strim() from the kernel Since we're working on moving stuff out of tools/perf/util/ to tools/lib/, take the opportunity to adopt routines from the kernel that are equivalent, so that tools/ code look more like the kernel. Cc: Adrian Hunter <adrian.hun...@intel.com> Cc: André Goddard Rosa <andre.godd...@gmail.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Namhyung Kim <namhy...@kernel.org> Link: https://lkml.kernel.org/n/tip-zqy1zdu2ok17qvi0ytk8z...@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/include/linux/string.h | 2 ++ tools/lib/string.c | 25 +++++++++++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/tools/include/linux/string.h b/tools/include/linux/string.h index cee239350a6b..e436f8037c87 100644 --- a/tools/include/linux/string.h +++ b/tools/include/linux/string.h @@ -31,4 +31,6 @@ static inline bool strstarts(const char *str, const char *prefix) extern char * __must_check skip_spaces(const char *); +extern char *strim(char *); + #endif /* _TOOLS_LINUX_STRING_H_ */ diff --git a/tools/lib/string.c b/tools/lib/string.c index 50d400822bb3..80472e6b3829 100644 --- a/tools/lib/string.c +++ b/tools/lib/string.c @@ -120,3 +120,28 @@ char *skip_spaces(const char *str) ++str; return (char *)str; } + +/** + * strim - Removes leading and 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 a pointer to the first non-whitespace + * character in @s. + */ +char *strim(char *s) +{ + size_t size; + char *end; + + size = strlen(s); + if (!size) + return s; + + end = s + size - 1; + while (end >= s && isspace(*end)) + end--; + *(end + 1) = '\0'; + + return skip_spaces(s); +}
