[PATCH 18/20] Move string.c to the library

Borislav Petkov
2010-11-04T15:40:01Z

This one is generic enough so move it to lib/lk/string.c

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
---
tools/lib/lk/Makefile | 1 +
tools/lib/lk/string.c | 296 +++++++++++++++++++++++++++++++++++++++++
tools/lib/lk/util.h | 2 +-
tools/perf/Makefile | 1 -
tools/perf/bench/mem-memcpy.c | 2 +-
tools/perf/util/string.c | 296 -----------------------------------------
6 files changed, 299 insertions(+), 299 deletions(-)
create mode 100644 tools/lib/lk/string.c
delete mode 100644 tools/perf/util/string.c

diff --git a/tools/lib/lk/Makefile b/tools/lib/lk/Makefile
index 36395b1..b81f11c 100644
--- a/tools/lib/lk/Makefile
+++ b/tools/lib/lk/Makefile
@@ -25,6 +25,7 @@ LIB_OBJS += rbtree.o
LIB_OBJS += hweight.o
LIB_OBJS += bitmap.o
LIB_OBJS += strlist.o
+LIB_OBJS += string.o

LIBFILE = $(LIB_OUTPUT)lklib.a

diff --git a/tools/lib/lk/string.c b/tools/lib/lk/string.c
new file mode 100644
index 0000000..0b02099
--- /dev/null
+++ b/tools/lib/lk/string.c
@@ -0,0 +1,296 @@
+#include <lk/util.h>
+#include "string.h"
+
+#define K 1024LL
+/*
+ * lk_atoll()
+ * Parse (\d+)(b|B|kb|KB|mb|MB|gb|GB|tb|TB) (e.g. "256MB")
+ * and return its numeric value
+ */
+s64 lk_atoll(const char *str)
+{
+ unsigned int i;
+ s64 length = -1, unit = 1;
+
+ if (!isdigit(str[0]))
+ goto out_err;
+
+ for (i = 1; i < strlen(str); i++) {
+ switch (str[i]) {
+ case 'B':
+ case 'b':
+ break;
+ case 'K':
+ if (str[i + 1] != 'B')
+ goto out_err;
+ else
+ goto kilo;
+ case 'k':
+ if (str[i + 1] != 'b')
+ goto out_err;
+kilo:
+ unit = K;
+ break;
+ case 'M':
+ if (str[i + 1] != 'B')
+ goto out_err;
+ else
+ goto mega;
+ case 'm':
+ if (str[i + 1] != 'b')
+ goto out_err;
+mega:
+ unit = K * K;
+ break;
+ case 'G':
+ if (str[i + 1] != 'B')
+ goto out_err;
+ else
+ goto giga;
+ case 'g':
+ if (str[i + 1] != 'b')
+ goto out_err;
+giga:
+ unit = K * K * K;
+ break;
+ case 'T':
+ if (str[i + 1] != 'B')
+ goto out_err;
+ else
+ goto tera;
+ case 't':
+ if (str[i + 1] != 'b')
+ goto out_err;
+tera:
+ unit = K * K * K * K;
+ break;
+ case '\0': /* only specified figures */
+ unit = 1;
+ break;
+ default:
+ if (!isdigit(str[i]))
+ goto out_err;
+ break;
+ }
+ }
+
+ length = atoll(str) * unit;
+ goto out;
+
+out_err:
+ length = -1;
+out:
+ return length;
+}
+
+/*
+ * Helper function for splitting a string into an argv-like array.
+ * originaly copied from lib/argv_split.c
+ */
+static const char *skip_sep(const char *cp)
+{
+ while (*cp && isspace(*cp))
+ cp++;
+
+ return cp;
+}
+
+static const char *skip_arg(const char *cp)
+{
+ while (*cp && !isspace(*cp))
+ cp++;
+
+ return cp;
+}
+
+static int count_argc(const char *str)
+{
+ int count = 0;
+
+ while (*str) {
+ str = skip_sep(str);
+ if (*str) {
+ count++;
+ str = skip_arg(str);
+ }
+ }
+
+ return count;
+}
+
+/**
+ * argv_free - free an argv
+ * @argv - the argument vector to be freed
+ *
+ * Frees an argv and the strings it points to.
+ */
+void argv_free(char **argv)
+{
+ char **p;
+ for (p = argv; *p; p++)
+ free(*p);
+
+ free(argv);
+}
+
+/**
+ * argv_split - split a string at whitespace, returning an argv
+ * @str: the string to be split
+ * @argcp: returned argument count
+ *
+ * Returns an array of pointers to strings which are split out from
+ * @str. This is performed by strictly splitting on white-space; no
+ * quote processing is performed. Multiple whitespace characters are
+ * considered to be a single argument separator. The returned array
+ * is always NULL-terminated. Returns NULL on memory allocation
+ * failure.
+ */
+char **argv_split(const char *str, int *argcp)
+{
+ int argc = count_argc(str);
+ char **argv = zalloc(sizeof(*argv) * (argc+1));
+ char **argvp;
+
+ if (argv == NULL)
+ goto out;
+
+ if (argcp)
+ *argcp = argc;
+
+ argvp = argv;
+
+ while (*str) {
+ str = skip_sep(str);
+
+ if (*str) {
+ const char *p = str;
+ char *t;
+
+ str = skip_arg(str);
+
+ t = strndup(p, str-p);
+ if (t == NULL)
+ goto fail;
+ *argvp++ = t;
+ }
+ }
+ *argvp = NULL;
+
+out:
+ return argv;
+
+fail:
+ argv_free(argv);
+ return NULL;
+}
+
+/* Character class matching */
+static bool __match_charclass(const char *pat, char c, const char **npat)
+{
+ bool complement = false, ret = true;
+
+ if (*pat == '!') {
+ complement = true;
+ pat++;
+ }
+ if (*pat++ == c) /* First character is special */
+ goto end;
+
+ while (*pat && *pat != ']') { /* Matching */
+ if (*pat == '-' && *(pat + 1) != ']') { /* Range */
+ if (*(pat - 1) <= c && c <= *(pat + 1))
+ goto end;
+ if (*(pat - 1) > *(pat + 1))
+ goto error;
+ pat += 2;
+ } else if (*pat++ == c)
+ goto end;
+ }
+ if (!*pat)
+ goto error;
+ ret = false;
+
+end:
+ while (*pat && *pat != ']') /* Searching closing */
+ pat++;
+ if (!*pat)
+ goto error;
+ *npat = pat + 1;
+ return complement ? !ret : ret;
+
+error:
+ return false;
+}
+
+/* Glob/lazy pattern matching */
+static bool __match_glob(const char *str, const char *pat, bool ignore_space)
+{
+ while (*str && *pat && *pat != '*') {
+ if (ignore_space) {
+ /* Ignore spaces for lazy matching */
+ if (isspace(*str)) {
+ str++;
+ continue;
+ }
+ if (isspace(*pat)) {
+ pat++;
+ continue;
+ }
+ }
+ if (*pat == '?') { /* Matches any single character */
+ str++;
+ pat++;
+ continue;
+ } else if (*pat == '[') /* Character classes/Ranges */
+ if (__match_charclass(pat + 1, *str, &pat)) {
+ str++;
+ continue;
+ } else
+ return false;
+ else if (*pat == '\\') /* Escaped char match as normal char */
+ pat++;
+ if (*str++ != *pat++)
+ return false;
+ }
+ /* Check wild card */
+ if (*pat == '*') {
+ while (*pat == '*')
+ pat++;
+ if (!*pat) /* Tail wild card matches all */
+ return true;
+ while (*str)
+ if (strglobmatch(str++, pat))
+ return true;
+ }
+ return !*str && !*pat;
+}
+
+/**
+ * strglobmatch - glob expression pattern matching
+ * @str: the target string to match
+ * @pat: the pattern string to match
+ *
+ * This returns true if the @str matches @pat. @pat can includes wildcards
+ * ('*','?') and character classes ([CHARS], complementation and ranges are
+ * also supported). Also, this supports escape character ('\') to use special
+ * characters as normal character.
+ *
+ * Note: if @pat syntax is broken, this always returns false.
+ */
+bool strglobmatch(const char *str, const char *pat)
+{
+ return __match_glob(str, pat, false);
+}
+
+/**
+ * strlazymatch - matching pattern strings lazily with glob pattern
+ * @str: the target string to match
+ * @pat: the pattern string to match
+ *
+ * This is similar to strglobmatch, except this ignores spaces in
+ * the target string.
+ */
+bool strlazymatch(const char *str, const char *pat)
+{
+ return __match_glob(str, pat, true);
+}
diff --git a/tools/lib/lk/util.h b/tools/lib/lk/util.h
index 23f3e61..bb6ba42 100644
--- a/tools/lib/lk/util.h
+++ b/tools/lib/lk/util.h
@@ -261,7 +261,7 @@ static inline int sane_case(int x, int high)
int mkdir_p(char *path, mode_t mode);
int copyfile(const char *from, const char *to);

-s64 perf_atoll(const char *str);
+s64 lk_atoll(const char *str);
char **argv_split(const char *str, int *argcp);
void argv_free(char **argv);
bool strglobmatch(const char *str, const char *pat);
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index f899b08..96f7c65 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -387,7 +387,6 @@ LIB_OBJS += $(OUTPUT)util/parse-events.o
LIB_OBJS += $(OUTPUT)util/run-command.o
LIB_OBJS += $(OUTPUT)util/quote.o
LIB_OBJS += $(OUTPUT)util/strbuf.o
-LIB_OBJS += $(OUTPUT)util/string.o
LIB_OBJS += $(OUTPUT)util/wrapper.o
LIB_OBJS += $(OUTPUT)util/sigchain.o
LIB_OBJS += $(OUTPUT)util/pager.o
diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c
index 1b2f508..86db09e 100644
--- a/tools/perf/bench/mem-memcpy.c
+++ b/tools/perf/bench/mem-memcpy.c
@@ -105,7 +105,7 @@ int bench_mem_memcpy(int argc, const char **argv,

tv_diff.tv_sec = 0;
tv_diff.tv_usec = 0;
- length = (size_t)perf_atoll((char *)length_str);
+ length = (size_t)lk_atoll((char *)length_str);

if ((s64)length <= 0) {
fprintf(stderr, "Invalid length:%s\n", length_str);
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
deleted file mode 100644
index 881ef63..0000000
--- a/tools/perf/util/string.c
+++ /dev/null
@@ -1,296 +0,0 @@
-#include <lk/util.h>
-#include "string.h"
-
-#define K 1024LL
-/*
- * perf_atoll()
- * Parse (\d+)(b|B|kb|KB|mb|MB|gb|GB|tb|TB) (e.g. "256MB")
- * and return its numeric value
- */
-s64 perf_atoll(const char *str)
-{
- unsigned int i;
- s64 length = -1, unit = 1;
-
- if (!isdigit(str[0]))
- goto out_err;
-
- for (i = 1; i < strlen(str); i++) {
- switch (str[i]) {
- case 'B':
- case 'b':
- break;
- case 'K':
- if (str[i + 1] != 'B')
- goto out_err;
- else
- goto kilo;
- case 'k':
- if (str[i + 1] != 'b')
- goto out_err;
-kilo:
- unit = K;
- break;
- case 'M':
- if (str[i + 1] != 'B')
- goto out_err;
- else
- goto mega;
- case 'm':
- if (str[i + 1] != 'b')
- goto out_err;
-mega:
- unit = K * K;
- break;
- case 'G':
- if (str[i + 1] != 'B')
- goto out_err;
- else
- goto giga;
- case 'g':
- if (str[i + 1] != 'b')
- goto out_err;
-giga:
- unit = K * K * K;
- break;
- case 'T':
- if (str[i + 1] != 'B')
- goto out_err;
- else
- goto tera;
- case 't':
- if (str[i + 1] != 'b')
- goto out_err;
-tera:
- unit = K * K * K * K;
- break;
- case '\0': /* only specified figures */
- unit = 1;
- break;
- default:
- if (!isdigit(str[i]))
- goto out_err;
- break;
- }
- }
-
- length = atoll(str) * unit;
- goto out;
-
-out_err:
- length = -1;
-out:
- return length;
-}
-
-/*
- * Helper function for splitting a string into an argv-like array.
- * originaly copied from lib/argv_split.c
- */
-static const char *skip_sep(const char *cp)
-{
- while (*cp && isspace(*cp))
- cp++;
-
- return cp;
-}
-
-static const char *skip_arg(const char *cp)
-{
- while (*cp && !isspace(*cp))
- cp++;
-
- return cp;
-}
-
-static int count_argc(const char *str)
-{
- int count = 0;
-
- while (*str) {
- str = skip_sep(str);
- if (*str) {
- count++;
- str = skip_arg(str);
- }
- }
-
- return count;
-}
-
-/**
- * argv_free - free an argv
- * @argv - the argument vector to be freed
- *
- * Frees an argv and the strings it points to.
- */
-void argv_free(char **argv)
-{
- char **p;
- for (p = argv; *p; p++)
- free(*p);
-
- free(argv);
-}
-
-/**
- * argv_split - split a string at whitespace, returning an argv
- * @str: the string to be split
- * @argcp: returned argument count
- *
- * Returns an array of pointers to strings which are split out from
- * @str. This is performed by strictly splitting on white-space; no
- * quote processing is performed. Multiple whitespace characters are
- * considered to be a single argument separator. The returned array
- * is always NULL-terminated. Returns NULL on memory allocation
- * failure.
- */
-char **argv_split(const char *str, int *argcp)
-{
- int argc = count_argc(str);
- char **argv = zalloc(sizeof(*argv) * (argc+1));
- char **argvp;
-
- if (argv == NULL)
- goto out;
-
- if (argcp)
- *argcp = argc;
-
- argvp = argv;
-
- while (*str) {
- str = skip_sep(str);
-
- if (*str) {
- const char *p = str;
- char *t;
-
- str = skip_arg(str);
-
- t = strndup(p, str-p);
- if (t == NULL)
- goto fail;
- *argvp++ = t;
- }
- }
- *argvp = NULL;
-
-out:
- return argv;
-
-fail:
- argv_free(argv);
- return NULL;
-}
-
-/* Character class matching */
-static bool __match_charclass(const char *pat, char c, const char **npat)
-{
- bool complement = false, ret = true;
-
- if (*pat == '!') {
- complement = true;
- pat++;
- }
- if (*pat++ == c) /* First character is special */
- goto end;
-
- while (*pat && *pat != ']') { /* Matching */
- if (*pat == '-' && *(pat + 1) != ']') { /* Range */
- if (*(pat - 1) <= c && c <= *(pat + 1))
- goto end;
- if (*(pat - 1) > *(pat + 1))
- goto error;
- pat += 2;
- } else if (*pat++ == c)
- goto end;
- }
- if (!*pat)
- goto error;
- ret = false;
-
-end:
- while (*pat && *pat != ']') /* Searching closing */
- pat++;
- if (!*pat)
- goto error;
- *npat = pat + 1;
- return complement ? !ret : ret;
-
-error:
- return false;
-}
-
-/* Glob/lazy pattern matching */
-static bool __match_glob(const char *str, const char *pat, bool ignore_space)
-{
- while (*str && *pat && *pat != '*') {
- if (ignore_space) {
- /* Ignore spaces for lazy matching */
- if (isspace(*str)) {
- str++;
- continue;
- }
- if (isspace(*pat)) {
- pat++;
- continue;
- }
- }
- if (*pat == '?') { /* Matches any single character */
- str++;
- pat++;
- continue;
- } else if (*pat == '[') /* Character classes/Ranges */
- if (__match_charclass(pat + 1, *str, &pat)) {
- str++;
- continue;
- } else
- return false;
- else if (*pat == '\\') /* Escaped char match as normal char */
- pat++;
- if (*str++ != *pat++)
- return false;
- }
- /* Check wild card */
- if (*pat == '*') {
- while (*pat == '*')
- pat++;
- if (!*pat) /* Tail wild card matches all */
- return true;
- while (*str)
- if (strglobmatch(str++, pat))
- return true;
- }
- return !*str && !*pat;
-}
-
-/**
- * strglobmatch - glob expression pattern matching
- * @str: the target string to match
- * @pat: the pattern string to match
- *
- * This returns true if the @str matches @pat. @pat can includes wildcards
- * ('*','?') and character classes ([CHARS], complementation and ranges are
- * also supported). Also, this supports escape character ('\') to use special
- * characters as normal character.
- *
- * Note: if @pat syntax is broken, this always returns false.
- */
-bool strglobmatch(const char *str, const char *pat)
-{
- return __match_glob(str, pat, false);
-}
-
-/**
- * strlazymatch - matching pattern strings lazily with glob pattern
- * @str: the target string to match
- * @pat: the pattern string to match
- *
- * This is similar to strglobmatch, except this ignores spaces in
- * the target string.
- */
-bool strlazymatch(const char *str, const char *pat)
-{
- return __match_glob(str, pat, true);
-}
--
1.7.3.1