const SAFE_COLOR_FUNCTION_PATTERN =

/^(?:rgb|rgba|hsl|hsla|hwb|lab|lch|oklab|oklch)\([a-z0-9+\-.,/%\s]+\)$/i;

const SAFE_HEX_COLOR_PATTERN = /^#(?:[0-9a-f]{3,4}|[0-9a-f]{6}|[0-9a-f]{8})$/i;

const SAFE_FONT_FAMILY_PATTERN = /^[a-z0-9\s,'"._-]+(?:,\s*[a-z0-9\s'"._-]+)*$/i;

const SAFE_FONT_FAMILY_PUNCTUATION = new Set([",", "'", '"', ".", "_", "-"]);

const MODE_TOKEN_ORDER = [

"bg",

throw new Error(`Unsupported tweakcn token: ${label}`);

}

function isSafeFontFamilyCharacter(char: string) {

const code = char.charCodeAt(0);

return (

(code >= 0x30 && code <= 0x39) ||

(code >= 0x41 && code <= 0x5a) ||

(code >= 0x61 && code <= 0x7a) ||

char === " " ||

SAFE_FONT_FAMILY_PUNCTUATION.has(char)

);

}

function requireSafeFontFamilyValue(value: unknown, label: string) {

const normalized = requireSafeCssValue(value, label);

if (

normalized.includes("(") ||

normalized.includes(")") ||

!SAFE_FONT_FAMILY_PATTERN.test(normalized)

!Array.from(normalized).every(isSafeFontFamilyCharacter)

) {

throw new Error(`Unsupported tweakcn token: ${label}`);

}