Function parseWord

source code/utils/bash/bashParser.ts:2010–2163

* Parse a word-position element: bare word, string, expansion, or concatenation * thereof. Returns a single node; if multiple adjacent fragments, wraps in * concatenation.

(P: ParseState, _ctx: 'cmd' | 'arg')

 * concatenation.
 */
function parseWord(P: ParseState, _ctx: 'cmd' | 'arg'): TsNode | null {
  skipBlanks(P.L)
  const parts: TsNode[] = []
  while (P.L.i < P.L.len) {
    const c = peek(P.L)
    if (
      c === ' ' ||
      c === '\t' ||
      c === '\n' ||
      c === '\r' ||
      c === '' ||
      c === '|' ||
      c === '&' ||
      c === ';' ||
      c === '(' ||
      c === ')'
    ) {
      break
    }
    // < > are redirect operators unless <( >( (process substitution)
    if (c === '<' || c === '>') {
      if (peek(P.L, 1) === '(') {
        const ps = parseProcessSub(P)
        if (ps) parts.push(ps)
        continue
      }
      break
    }
    if (c === '"') {
      parts.push(parseDoubleQuoted(P))
      continue
    }
    if (c === "'") {
      const tok = nextToken(P.L, 'arg')
      parts.push(leaf(P, 'raw_string', tok))
      continue
    }
    if (c === '$') {
      const c1 = peek(P.L, 1)
      if (c1 === "'") {
        const tok = nextToken(P.L, 'arg')
        parts.push(leaf(P, 'ansi_c_string', tok))
        continue
      }
      if (c1 === '"') {
        // Translated string: emit $ leaf + string node
        const dTok: Token = {
          type: 'DOLLAR',
          value: '$',
          start: P.L.b,
          end: P.L.b + 1,
        }
        advance(P.L)
        parts.push(leaf(P, '$', dTok))
        parts.push(parseDoubleQuoted(P))
        continue
      }
      if (c1 === '`') {