Function readWordBefore

src/cm/colorView.ts:81–94

(doc: Text, index: number)

}

function readWordBefore(doc: Text, index: number): string {
	let pos = index;
	while (pos >= 0 && isWhitespace(charAt(doc, pos))) pos--;
	if (pos < 0) return "";
	if (charAt(doc, pos) === "(") {
		pos--;
	}
	while (pos >= 0 && isWhitespace(charAt(doc, pos))) pos--;
	const end = pos;
	while (pos >= 0 && isAlpha(charAt(doc, pos))) pos--;
	const start = pos + 1;
	if (end < start) return "";
	return doc.sliceString(start, end + 1).toLowerCase();
}

function shouldRenderColor(doc: Text, start: number, end: number): boolean {
	const immediatePrev = charAt(doc, start - 1);