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node_modules/bits-ui/dist/internal/css-escape.js

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+/**
+ * https://github.com/mathiasbynens/CSS.escape
+ *
+ * @param value - The value to escape for use as a CSS identifier
+ * @returns The escaped CSS identifier string
+ */
+export function cssEscape(value) {
+    if (typeof CSS !== "undefined" && typeof CSS.escape === "function") {
+        return CSS.escape(value);
+    }
+    const length = value.length;
+    let index = -1;
+    let codeUnit;
+    let result = "";
+    const firstCodeUnit = value.charCodeAt(0);
+    // If the character is the first character and is a `-` (U+002D), and
+    // there is no second character, escape it
+    if (length === 1 && firstCodeUnit === 0x002d)
+        return "\\" + value;
+    while (++index < length) {
+        codeUnit = value.charCodeAt(index);
+        // If the character is NULL (U+0000), then the REPLACEMENT CHARACTER (U+FFFD)
+        if (codeUnit === 0x0000) {
+            result += "\uFFFD";
+            continue;
+        }
+        if (
+        // If the character is in the range [\1-\1F] (U+0001 to U+001F) or is U+007F
+        (codeUnit >= 0x0001 && codeUnit <= 0x001f) ||
+            codeUnit === 0x007f ||
+            // If the character is the first character and is in the range [0-9] (U+0030 to U+0039)
+            (index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
+            // If the character is the second character and is in the range [0-9] (U+0030 to U+0039)
+            // and the first character is a `-` (U+002D)
+            (index === 1 && codeUnit >= 0x0030 && codeUnit <= 0x0039 && firstCodeUnit === 0x002d)) {
+            // https://drafts.csswg.org/cssom/#escape-a-character-as-code-point
+            result += "\\" + codeUnit.toString(16) + " ";
+            continue;
+        }
+        // If the character is not handled by one of the above rules and is
+        // greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
+        // is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to U+005A),
+        // or [a-z] (U+0061 to U+007A)
+        if (codeUnit >= 0x0080 ||
+            codeUnit === 0x002d ||
+            codeUnit === 0x005f ||
+            (codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
+            (codeUnit >= 0x0041 && codeUnit <= 0x005a) ||
+            (codeUnit >= 0x0061 && codeUnit <= 0x007a)) {
+            // Use the character itself
+            result += value.charAt(index);
+            continue;
+        }
+        // Otherwise, escape the character
+        // https://drafts.csswg.org/cssom/#escape-a-character
+        result += "\\" + value.charAt(index);
+    }
+    return result;
+}