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-rw-r--r--lib/parser.c62
1 files changed, 56 insertions, 6 deletions
diff --git a/lib/parser.c b/lib/parser.c
index 807b2aaa33fa..b6d11631231b 100644
--- a/lib/parser.c
+++ b/lib/parser.c
@@ -113,6 +113,7 @@ int match_token(char *s, const match_table_t table, substring_t args[])
return p->token;
}
+EXPORT_SYMBOL(match_token);
/**
* match_number: scan a number in the given base from a substring_t
@@ -163,6 +164,7 @@ int match_int(substring_t *s, int *result)
{
return match_number(s, result, 0);
}
+EXPORT_SYMBOL(match_int);
/**
* match_octal: - scan an octal representation of an integer from a substring_t
@@ -177,6 +179,7 @@ int match_octal(substring_t *s, int *result)
{
return match_number(s, result, 8);
}
+EXPORT_SYMBOL(match_octal);
/**
* match_hex: - scan a hex representation of an integer from a substring_t
@@ -191,6 +194,58 @@ int match_hex(substring_t *s, int *result)
{
return match_number(s, result, 16);
}
+EXPORT_SYMBOL(match_hex);
+
+/**
+ * match_wildcard: - parse if a string matches given wildcard pattern
+ * @pattern: wildcard pattern
+ * @str: the string to be parsed
+ *
+ * Description: Parse the string @str to check if matches wildcard
+ * pattern @pattern. The pattern may contain two type wildcardes:
+ * '*' - matches zero or more characters
+ * '?' - matches one character
+ * If it's matched, return true, else return false.
+ */
+bool match_wildcard(const char *pattern, const char *str)
+{
+ const char *s = str;
+ const char *p = pattern;
+ bool star = false;
+
+ while (*s) {
+ switch (*p) {
+ case '?':
+ s++;
+ p++;
+ break;
+ case '*':
+ star = true;
+ str = s;
+ if (!*++p)
+ return true;
+ pattern = p;
+ break;
+ default:
+ if (*s == *p) {
+ s++;
+ p++;
+ } else {
+ if (!star)
+ return false;
+ str++;
+ s = str;
+ p = pattern;
+ }
+ break;
+ }
+ }
+
+ if (*p == '*')
+ ++p;
+ return !*p;
+}
+EXPORT_SYMBOL(match_wildcard);
/**
* match_strlcpy: - Copy the characters from a substring_t to a sized buffer
@@ -213,6 +268,7 @@ size_t match_strlcpy(char *dest, const substring_t *src, size_t size)
}
return ret;
}
+EXPORT_SYMBOL(match_strlcpy);
/**
* match_strdup: - allocate a new string with the contents of a substring_t
@@ -230,10 +286,4 @@ char *match_strdup(const substring_t *s)
match_strlcpy(p, s, sz);
return p;
}
-
-EXPORT_SYMBOL(match_token);
-EXPORT_SYMBOL(match_int);
-EXPORT_SYMBOL(match_octal);
-EXPORT_SYMBOL(match_hex);
-EXPORT_SYMBOL(match_strlcpy);
EXPORT_SYMBOL(match_strdup);