Function extractLeadingGradient

packages/extension/utils/css.ts:413–456

(value: string)

}

function extractLeadingGradient(value: string): string | null {
  const input = value.trim()
  if (!input) return null

  const lower = input.toLowerCase()
  if (!GRADIENT_FUNCTION_PREFIXES.some((prefix) => lower.startsWith(prefix))) {
    return null
  }

  let depth = 0
  let quote: '"' | "'" | null = null

  for (let i = 0; i < input.length; i++) {
    const ch = input[i]

    if (quote) {
      if (ch === '\\') {
        i++
        continue
      }
      if (ch === quote) quote = null
      continue
    }

    if (ch === '"' || ch === "'") {
      quote = ch
      continue
    }

    if (ch === '(') {
      depth++
      continue
    }

    if (ch === ')') {
      depth = Math.max(0, depth - 1)
      if (depth === 0) {
        return input.slice(0, i + 1).trim()
      }
    }
  }

  return null
}

function getBorderWidth(style: Record<string, string>): string | null {
  if (style.border) {