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backend/node_modules/hono/dist/utils/accept.js

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+// src/utils/accept.ts
+var parseAccept = (acceptHeader) => {
+  if (!acceptHeader) {
+    return [];
+  }
+  const acceptValues = acceptHeader.split(",").map((value, index) => ({ value, index }));
+  return acceptValues.map(parseAcceptValue).filter((item) => Boolean(item)).sort(sortByQualityAndIndex).map(({ type, params, q }) => ({ type, params, q }));
+};
+var parseAcceptValueRegex = /;(?=(?:(?:[^"]*"){2})*[^"]*$)/;
+var parseAcceptValue = ({ value, index }) => {
+  const parts = value.trim().split(parseAcceptValueRegex).map((s) => s.trim());
+  const type = parts[0];
+  if (!type) {
+    return null;
+  }
+  const params = parseParams(parts.slice(1));
+  const q = parseQuality(params.q);
+  return { type, params, q, index };
+};
+var parseParams = (paramParts) => {
+  return paramParts.reduce((acc, param) => {
+    const [key, val] = param.split("=").map((s) => s.trim());
+    if (key && val) {
+      acc[key] = val;
+    }
+    return acc;
+  }, {});
+};
+var parseQuality = (qVal) => {
+  if (qVal === void 0) {
+    return 1;
+  }
+  if (qVal === "") {
+    return 1;
+  }
+  if (qVal === "NaN") {
+    return 0;
+  }
+  const num = Number(qVal);
+  if (num === Infinity) {
+    return 1;
+  }
+  if (num === -Infinity) {
+    return 0;
+  }
+  if (Number.isNaN(num)) {
+    return 1;
+  }
+  if (num < 0 || num > 1) {
+    return 1;
+  }
+  return num;
+};
+var sortByQualityAndIndex = (a, b) => {
+  const qDiff = b.q - a.q;
+  if (qDiff !== 0) {
+    return qDiff;
+  }
+  return a.index - b.index;
+};
+export {
+  parseAccept
+};