main repo

node_modules/motion-dom/dist/es/animation/utils/is-css-variable.mjs

@@ -0,0 +1,15 @@
+const checkStringStartsWith = (token) => (key) => typeof key === "string" && key.startsWith(token);
+const isCSSVariableName = 
+/*@__PURE__*/ checkStringStartsWith("--");
+const startsAsVariableToken = 
+/*@__PURE__*/ checkStringStartsWith("var(--");
+const isCSSVariableToken = (value) => {
+    const startsWithToken = startsAsVariableToken(value);
+    if (!startsWithToken)
+        return false;
+    // Ensure any comments are stripped from the value as this can harm performance of the regex.
+    return singleCssVariableRegex.test(value.split("/*")[0].trim());
+};
+const singleCssVariableRegex = /var\(--(?:[\w-]+\s*|[\w-]+\s*,(?:\s*[^)(\s]|\s*\((?:[^)(]|\([^)(]*\))*\))+\s*)\)$/iu;
+
+export { isCSSVariableName, isCSSVariableToken };