** Written by Rich $alz, mirror!rs, Wed Nov 26 19:03:17 EST 1986.
** Rich $alz is now <rsalz@bbn.com>.
**
-** Modified by Wayne Davison to special-case '/' matching and to fix
-** the character-class code.
+** Modified by Wayne Davison to special-case '/' matching, to make '**'
+** work differently than '*', and to fix the character-class code.
*/
#include "rsync.h"
/* What character marks an inverted character class? */
-#define NEGATE_CLASS '!'
+#define NEGATE_CLASS '!'
+#define NEGATE_CLASS2 '^'
-#define false 0
-#define true 1
+#define FALSE 0
+#define TRUE 1
+#define ABORT_ALL -1
+#define ABORT_TO_STARSTAR -2
-/* Look for pattern "p" in the "text" string. */
-int
-wildmatch(const char *p, const char *text)
+#define CC_EQ(class, len, litmatch) ((len) == sizeof (litmatch)-1 \
+ && *(class) == *(litmatch) \
+ && strncmp((char*)class, litmatch, len) == 0)
+
+#if defined STDC_HEADERS || !defined isascii
+# define ISASCII(c) 1
+#else
+# define ISASCII(c) isascii(c)
+#endif
+
+#ifdef isblank
+# define ISBLANK(c) (ISASCII(c) && isblank(c))
+#else
+# define ISBLANK(c) ((c) == ' ' || (c) == '\t')
+#endif
+
+#ifdef isgraph
+# define ISGRAPH(c) (ISASCII(c) && isgraph(c))
+#else
+# define ISGRAPH(c) (ISASCII(c) && isprint(c) && !isspace(c))
+#endif
+
+#define ISPRINT(c) (ISASCII(c) && isprint(c))
+#define ISDIGIT(c) (ISASCII(c) && isdigit(c))
+#define ISALNUM(c) (ISASCII(c) && isalnum(c))
+#define ISALPHA(c) (ISASCII(c) && isalpha(c))
+#define ISCNTRL(c) (ISASCII(c) && iscntrl(c))
+#define ISLOWER(c) (ISASCII(c) && islower(c))
+#define ISPUNCT(c) (ISASCII(c) && ispunct(c))
+#define ISSPACE(c) (ISASCII(c) && isspace(c))
+#define ISUPPER(c) (ISASCII(c) && isupper(c))
+#define ISXDIGIT(c) (ISASCII(c) && isxdigit(c))
+
+#ifdef WILD_TEST_ITERATIONS
+int wildmatch_iteration_count;
+#endif
+
+static int domatch(const unsigned char *p, const unsigned char *text)
{
int matched, special;
- char ch, prev;
+ unsigned char ch, prev;
+
+#ifdef WILD_TEST_ITERATIONS
+ wildmatch_iteration_count++;
+#endif
for ( ; (ch = *p) != '\0'; text++, p++) {
if (*text == '\0' && ch != '*')
- return false;
+ return FALSE;
switch (ch) {
case '\\':
/* Literal match with following character. Note that the test
/* FALLTHROUGH */
default:
if (*text != ch)
- return false;
+ return FALSE;
continue;
case '?':
/* Match anything but '/'. */
if (*text == '/')
- return false;
+ return FALSE;
continue;
case '*':
if (*++p == '*') {
while (*++p == '*') {}
- special = true;
+ special = TRUE;
}
else
- special = false;
+ special = FALSE;
if (*p == '\0') {
- /* Trailing "**" matches everything. */
- return special? true : strchr(text, '/') == 0;
+ /* Trailing "**" matches everything. Trailing "*" matches
+ * only if there are no more slash characters. */
+ return special? TRUE : strchr((char*)text, '/') == NULL;
}
for ( ; *text; text++) {
- if (wildmatch(p, text))
- return true;
- if (!special && *text == '/')
- return false;
+ if ((matched = domatch(p, text)) != FALSE) {
+ if (!special || matched != ABORT_TO_STARSTAR)
+ return matched;
+ }
+ else if (!special && *text == '/')
+ return ABORT_TO_STARSTAR;
}
- return false;
+ return ABORT_ALL;
case '[':
- special = *++p == NEGATE_CLASS ? true : false;
+ ch = *++p;
+#ifdef NEGATE_CLASS2
+ if (ch == NEGATE_CLASS2)
+ ch = NEGATE_CLASS;
+#endif
+ /* Assign literal TRUE/FALSE because of "matched" comparison. */
+ special = ch == NEGATE_CLASS? TRUE : FALSE;
if (special) {
/* Inverted character class. */
- p++;
- }
- prev = 0;
- matched = false;
- ch = *p;
- if (ch == ']' || ch == '-') {
- if (*text == ch)
- matched = true;
- prev = ch;
ch = *++p;
}
- for ( ; ch != ']'; prev = ch, ch = *++p) {
+ prev = 0;
+ matched = FALSE;
+ do {
if (!ch)
- return false;
- if (ch == '-' && prev && p[1] && p[1] != ']') {
- if (*text <= *++p && *text >= prev)
- matched = true;
- ch = 0;
+ return ABORT_ALL;
+ if (ch == '\\') {
+ ch = *++p;
+ if (!ch)
+ return ABORT_ALL;
+ if (*text == ch)
+ matched = TRUE;
+ }
+ else if (ch == '-' && prev && p[1] && p[1] != ']') {
+ ch = *++p;
+ if (ch == '\\') {
+ ch = *++p;
+ if (!ch)
+ return ABORT_ALL;
+ }
+ if (*text <= ch && *text >= prev)
+ matched = TRUE;
+ ch = 0; /* This makes "prev" get set to 0. */
+ }
+ else if (ch == '[' && p[1] == ':') {
+ const unsigned char *s = p += 2;
+ int i;
+ while ((ch = *p) && ch != ']') p++;
+ if (!ch)
+ return ABORT_ALL;
+ i = p - s - 1;
+ if (i < 0 || p[-1] != ':') {
+ /* Didn't find ":]", so treat like a normal set. */
+ p = s - 2;
+ ch = '[';
+ if (*text == ch)
+ matched = TRUE;
+ continue;
+ }
+ if (CC_EQ(s,i, "alnum")) {
+ if (ISALNUM(*text))
+ matched = TRUE;
+ }
+ else if (CC_EQ(s,i, "alpha")) {
+ if (ISALPHA(*text))
+ matched = TRUE;
+ }
+ else if (CC_EQ(s,i, "blank")) {
+ if (ISBLANK(*text))
+ matched = TRUE;
+ }
+ else if (CC_EQ(s,i, "cntrl")) {
+ if (ISCNTRL(*text))
+ matched = TRUE;
+ }
+ else if (CC_EQ(s,i, "digit")) {
+ if (ISDIGIT(*text))
+ matched = TRUE;
+ }
+ else if (CC_EQ(s,i, "graph")) {
+ if (ISGRAPH(*text))
+ matched = TRUE;
+ }
+ else if (CC_EQ(s,i, "lower")) {
+ if (ISLOWER(*text))
+ matched = TRUE;
+ }
+ else if (CC_EQ(s,i, "print")) {
+ if (ISPRINT(*text))
+ matched = TRUE;
+ }
+ else if (CC_EQ(s,i, "punct")) {
+ if (ISPUNCT(*text))
+ matched = TRUE;
+ }
+ else if (CC_EQ(s,i, "space")) {
+ if (ISSPACE(*text))
+ matched = TRUE;
+ }
+ else if (CC_EQ(s,i, "upper")) {
+ if (ISUPPER(*text))
+ matched = TRUE;
+ }
+ else if (CC_EQ(s,i, "xdigit")) {
+ if (ISXDIGIT(*text))
+ matched = TRUE;
+ }
+ else /* malformed [:class:] string */
+ return ABORT_ALL;
+ ch = 0; /* This makes "prev" get set to 0. */
}
else if (*text == ch)
- matched = true;
- }
- if (matched == special)
- return false;
+ matched = TRUE;
+ } while (prev = ch, (ch = *++p) != ']');
+ if (matched == special || *text == '/')
+ return FALSE;
continue;
}
}
return *text == '\0';
}
+
+/* Find the pattern (p) in the text string (t). */
+int wildmatch(const char *p, const char *t)
+{
+#ifdef WILD_TEST_ITERATIONS
+ wildmatch_iteration_count = 0;
+#endif
+ return domatch((const unsigned char*)p, (const unsigned char*)t) == TRUE;
+}
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff