add different match types to search

Sources/dpk-cli/GlobMatcher.swift

@@ -0,0 +1,38 @@
+/*
+ * darwin-apk © 2024 Gay Pizza Specifications
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import Foundation
+import ArgumentParser
+
+struct GlobMatcher: PatternMatcher {
+  private let _patterns: [String]
+  private let _flags: Int32
+
+  init(patterns: [String], ignoreCase: Bool) throws(ArgumentParser.ExitCode) {
+    self._patterns = patterns
+    self._flags = ignoreCase ? FNM_CASEFOLD : 0
+  }
+
+  func match(_ field: String) -> Bool {
+    for pattern in self._patterns {
+      // Quick hack to make matching without explicit globs easier
+      if pattern.rangeOfCharacter(from: .init(charactersIn: "*?[]")) == nil {
+        if self._flags & FNM_CASEFOLD != 0 {
+          return field.localizedCaseInsensitiveContains(pattern)
+        } else {
+          return field.contains(pattern)
+        }
+      }
+      let res = fnmatch(pattern, field, self._flags)
+      if res == FNM_NOMATCH {
+        continue
+      } else if res == 0 {
+        return true
+      }
+      fatalError("fnmatch error \(res)")
+    }
+    return false
+  }
+}