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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.hunter@intel.com> Cc: André Goddard Rosa <andre.goddard@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-zqy1zdu2ok17qvi0ytk8z13c@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -31,4 +31,6 @@ static inline bool strstarts(const char *str, const char *prefix)
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extern char * __must_check skip_spaces(const char *);
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extern char * __must_check skip_spaces(const char *);
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extern char *strim(char *);
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#endif /* _TOOLS_LINUX_STRING_H_ */
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#endif /* _TOOLS_LINUX_STRING_H_ */
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@ -120,3 +120,28 @@ char *skip_spaces(const char *str)
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++str;
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++str;
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return (char *)str;
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return (char *)str;
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}
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}
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/**
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* strim - Removes leading and trailing whitespace from @s.
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* @s: The string to be stripped.
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*
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* Note that the first trailing whitespace is replaced with a %NUL-terminator
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* in the given string @s. Returns a pointer to the first non-whitespace
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* character in @s.
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*/
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char *strim(char *s)
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{
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size_t size;
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char *end;
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size = strlen(s);
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if (!size)
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return s;
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end = s + size - 1;
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while (end >= s && isspace(*end))
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end--;
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*(end + 1) = '\0';
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return skip_spaces(s);
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}
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