refactor(file): overhaul filesystem for better accuracy, add some new features too

bc/file/SimpleGlob.cpp

@@ -0,0 +1,72 @@
+#include "bc/file/SimpleGlob.hpp"
+
+#include <cstdint>
+#include <cctype>
+
+namespace Blizzard {
+namespace File {
+
+bool SimpleGlob(const char* name, const char* pattern) {
+    auto p = pattern;
+    auto n = name;
+
+    while (true) {
+        if (*p == '\0') {
+            return !*n;
+        }
+        if (!*n && *p != '*') {
+            return false;
+        }
+        if (*p == '*') {
+            break;
+        }
+        if (*p == '?') {
+            if (!*n) {
+                return false;
+            }
+        } else {
+            if (*p == '\\' && p[1]) {
+                p++;
+            }
+            if (*p != *n) {
+                if (tolower(static_cast<uint8_t>(*n)) != tolower(static_cast<uint8_t>(*p))) {
+                    return false;
+                }
+            }
+        }
+
+        n++;
+        p++;
+    }
+
+    while (*p == '*') {
+        p++;
+    }
+
+    if (*p) {
+        if (*p != '?' && *p != '\\') {
+            if (!*n) {
+                return false;
+            }
+            while (*p != *n) {
+                if (!*++n) {
+                    return false;
+                }
+            }
+        }
+        if (!*n) {
+            return false;
+        }
+
+        while (!SimpleGlob(n, p)) {
+            n++;
+            if (*n == '\0') {
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
+} // namespace File
+} // namespace Blizzard