Function parseAndOr

source code/utils/bash/bashParser.ts:881–921

* Parse pipeline chains joined by && ||. Left-associative nesting. * tree-sitter quirk: trailing redirect on the last pipeline wraps the ENTIRE * list in a redirected_statement — `a > x && b > y` becomes * redirected_statement(list(redirected_statement(a,>x), &&, b), >y).

(P: ParseState)

 * redirected_statement(list(redirected_statement(a,>x), &&, b), >y).
 */
function parseAndOr(P: ParseState): TsNode | null {
  let left = parsePipeline(P)
  if (!left) return null
  while (true) {
    const save = saveLex(P.L)
    const t = nextToken(P.L, 'cmd')
    if (t.type === 'OP' && (t.value === '&&' || t.value === '||')) {
      const op = leaf(P, t.value, t)
      skipNewlines(P)
      const right = parsePipeline(P)
      if (!right) {
        left = mk(P, 'list', left.startIndex, op.endIndex, [left, op])
        break
      }
      // If right is a redirected_statement, hoist its redirects to wrap the list.
      if (right.type === 'redirected_statement' && right.children.length >= 2) {
        const inner = right.children[0]!
        const redirs = right.children.slice(1)
        const listNode = mk(P, 'list', left.startIndex, inner.endIndex, [
          left,
          op,
          inner,
        ])
        const lastR = redirs[redirs.length - 1]!
        left = mk(
          P,
          'redirected_statement',
          listNode.startIndex,
          lastR.endIndex,
          [listNode, ...redirs],
        )
      } else {
        left = mk(P, 'list', left.startIndex, right.endIndex, [left, op, right])
      }
    } else {
      restoreLex(P.L, save)
      break
    }
  }
  return left
}

function skipNewlines(P: ParseState): void {
  while (true) {