Function parseToSpans

src/ink/Ansi.tsx:118–153

* Parse an ANSI string into spans using the termio parser.

(input: string)

 * Parse an ANSI string into spans using the termio parser.
 */
function parseToSpans(input: string): Span[] {
  const parser = new Parser();
  const actions = parser.feed(input);
  const spans: Span[] = [];
  let currentHyperlink: string | undefined;
  for (const action of actions) {
    if (action.type === 'link') {
      if (action.action.type === 'start') {
        currentHyperlink = action.action.url;
      } else {
        currentHyperlink = undefined;
      }
      continue;
    }
    if (action.type === 'text') {
      const text = action.graphemes.map(g => g.value).join('');
      if (!text) continue;
      const props = textStyleToSpanProps(action.style);
      if (currentHyperlink) {
        props.hyperlink = currentHyperlink;
      }

      // Try to merge with previous span if props match
      const lastSpan = spans[spans.length - 1];
      if (lastSpan && propsEqual(lastSpan.props, props)) {
        lastSpan.text += text;
      } else {
        spans.push({
          text,
          props
        });
      }
    }
  }
  return spans;
}

/**
 * Convert termio's TextStyle to SpanProps.