基本schema测试

node_modules/fast-querystring/lib/internals/querystring.js

@@ -0,0 +1,96 @@
+// This file is taken from Node.js project.
+// Full implementation can be found from https://github.com/nodejs/node/blob/main/lib/internal/querystring.js
+
+const hexTable = Array.from(
+  { length: 256 },
+  (_, i) => "%" + ((i < 16 ? "0" : "") + i.toString(16)).toUpperCase(),
+);
+
+// These characters do not need escaping when generating query strings:
+// ! - . _ ~
+// ' ( ) *
+// digits
+// alpha (uppercase)
+// alpha (lowercase)
+// rome-ignore format: the array should not be formatted
+const noEscape = new Int8Array([
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0 - 15
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 16 - 31
+  0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, // 32 - 47
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, // 48 - 63
+  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 64 - 79
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, // 80 - 95
+  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 96 - 111
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, // 112 - 127
+]);
+
+/**
+ * @param {string} str
+ * @returns {string}
+ */
+function encodeString(str) {
+  const len = str.length;
+  if (len === 0) return "";
+
+  let out = "";
+  let lastPos = 0;
+  let i = 0;
+
+  outer: for (; i < len; i++) {
+    let c = str.charCodeAt(i);
+
+    // ASCII
+    while (c < 0x80) {
+      if (noEscape[c] !== 1) {
+        if (lastPos < i) out += str.slice(lastPos, i);
+        lastPos = i + 1;
+        out += hexTable[c];
+      }
+
+      if (++i === len) break outer;
+
+      c = str.charCodeAt(i);
+    }
+
+    if (lastPos < i) out += str.slice(lastPos, i);
+
+    // Multi-byte characters ...
+    if (c < 0x800) {
+      lastPos = i + 1;
+      out += hexTable[0xc0 | (c >> 6)] + hexTable[0x80 | (c & 0x3f)];
+      continue;
+    }
+    if (c < 0xd800 || c >= 0xe000) {
+      lastPos = i + 1;
+      out +=
+        hexTable[0xe0 | (c >> 12)] +
+        hexTable[0x80 | ((c >> 6) & 0x3f)] +
+        hexTable[0x80 | (c & 0x3f)];
+      continue;
+    }
+    // Surrogate pair
+    ++i;
+
+    // This branch should never happen because all URLSearchParams entries
+    // should already be converted to USVString. But, included for
+    // completion's sake anyway.
+    if (i >= len) {
+      throw new Error("URI malformed");
+    }
+
+    const c2 = str.charCodeAt(i) & 0x3ff;
+
+    lastPos = i + 1;
+    c = 0x10000 + (((c & 0x3ff) << 10) | c2);
+    out +=
+      hexTable[0xf0 | (c >> 18)] +
+      hexTable[0x80 | ((c >> 12) & 0x3f)] +
+      hexTable[0x80 | ((c >> 6) & 0x3f)] +
+      hexTable[0x80 | (c & 0x3f)];
+  }
+  if (lastPos === 0) return str;
+  if (lastPos < len) return out + str.slice(lastPos);
+  return out;
+}
+
+module.exports = { encodeString };