Function consumeStyleValue

packages/core/src/render3/styling/styling_parser.ts:255–284

(text: string, startIndex: number, endIndex: number)

 * @returns Index after last style value character.
 */
export function consumeStyleValue(text: string, startIndex: number, endIndex: number): number {
  let ch1 = -1; // 1st previous character
  let ch2 = -1; // 2nd previous character
  let ch3 = -1; // 3rd previous character
  let i = startIndex;
  let lastChIndex = i;
  while (i < endIndex) {
    const ch: number = text.charCodeAt(i++);
    if (ch === CharCode.SEMI_COLON) {
      return lastChIndex;
    } else if (ch === CharCode.DOUBLE_QUOTE || ch === CharCode.SINGLE_QUOTE) {
      lastChIndex = i = consumeQuotedText(text, ch, i, endIndex);
    } else if (
      startIndex === i - 4 && // We have seen only 4 characters so far "URL(" (Ignore "foo_URL()")
      ch3 === CharCode.U &&
      ch2 === CharCode.R &&
      ch1 === CharCode.L &&
      ch === CharCode.OPEN_PAREN
    ) {
      lastChIndex = i = consumeQuotedText(text, CharCode.CLOSE_PAREN, i, endIndex);
    } else if (ch > CharCode.SPACE) {
      // if we have a non-whitespace character then capture its location
      lastChIndex = i;
    }
    ch3 = ch2;
    ch2 = ch1;
    ch1 = ch & CharCode.UPPER_CASE;
  }
  return lastChIndex;
}

/**
 * Consumes all of the quoted characters.