Fork from minio pkg

Signed-off-by: Adrien Kara <adrien@iglou.eu>

go.mod

@@ -0,0 +1,3 @@
+module git.iglou.eu/Imported/go-wilcard
+
+go 1.16

wildcard.go

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+/*
+ * MinIO Cloud Storage, (C) 2015, 2016 MinIO, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package wildcard
+
+// MatchSimple - finds whether the text matches/satisfies the pattern string.
+// supports only '*' wildcard in the pattern.
+// considers a file system path as a flat name space.
+func MatchSimple(pattern, name string) bool {
+	if pattern == "" {
+		return name == pattern
+	}
+	if pattern == "*" {
+		return true
+	}
+	// Does only wildcard '*' match.
+	return deepMatchRune([]rune(name), []rune(pattern), true)
+}
+
+// Match -  finds whether the text matches/satisfies the pattern string.
+// supports  '*' and '?' wildcards in the pattern string.
+// unlike path.Match(), considers a path as a flat name space while matching the pattern.
+// The difference is illustrated in the example here https://play.golang.org/p/Ega9qgD4Qz .
+func Match(pattern, name string) (matched bool) {
+	if pattern == "" {
+		return name == pattern
+	}
+	if pattern == "*" {
+		return true
+	}
+	// Does extended wildcard '*' and '?' match.
+	return deepMatchRune([]rune(name), []rune(pattern), false)
+}
+
+func deepMatchRune(str, pattern []rune, simple bool) bool {
+	for len(pattern) > 0 {
+		switch pattern[0] {
+		default:
+			if len(str) == 0 || str[0] != pattern[0] {
+				return false
+			}
+		case '?':
+			if len(str) == 0 && !simple {
+				return false
+			}
+		case '*':
+			return deepMatchRune(str, pattern[1:], simple) ||
+				(len(str) > 0 && deepMatchRune(str[1:], pattern, simple))
+		}
+		str = str[1:]
+		pattern = pattern[1:]
+	}
+	return len(str) == 0 && len(pattern) == 0
+}