39  * Compares a filename or pathname to a pattern.
62 static const char *rangematch(const char *pattern, int test, int flags)  in rangematch()  argument
67 	if (pattern == NULL) {  in rangematch()
78 	negate = *pattern == '!' || *pattern == '^';  in rangematch()
80 		++pattern;  in rangematch()
83 	for (need = true, ok = false, c = FOLDCASE(*pattern++, flags); c != ']' || need;  in rangematch()
84 	     c = FOLDCASE(*pattern++, flags)) {  in rangematch()
91 			c = FOLDCASE(*pattern++, flags);  in rangematch()
98 		if (*pattern == '-') {  in rangematch()
99 			c2 = FOLDCASE(*(pattern + 1), flags);  in rangematch()
101 				pattern += 2;  in rangematch()
103 					c2 = FOLDCASE(*pattern++, flags);  in rangematch()
119 	return ok == negate ? NULL : pattern;  in rangematch()
122 static int fnmatchx(const char *pattern, const char *string, int flags, size_t recursion)  in fnmatchx()  argument
127 	if (pattern == NULL || string == NULL) {  in fnmatchx()
136 		c = FOLDCASE(*pattern++, flags);  in fnmatchx()
162 			c = FOLDCASE(*pattern, flags);  in fnmatchx()
165 				c = FOLDCASE(*++pattern, flags);  in fnmatchx()
174 			/* Optimize for pattern with * at end or before /. */  in fnmatchx()
200 				int e = fnmatchx(pattern, string, flags & ~FNM_PERIOD, recursion);  in fnmatchx()
223 			r = rangematch(pattern, FOLDCASE(*string, flags), flags);  in fnmatchx()
233 				pattern = r;  in fnmatchx()
240 				c = FOLDCASE(*pattern++, flags);  in fnmatchx()
243 					--pattern;  in fnmatchx()
258 int fnmatch(const char *pattern, const char *string, int flags)  in fnmatch()  argument
260 	return fnmatchx(pattern, string, flags, 64);  in fnmatch()