Fix up array literal error.

Addresses issue #27 and #103.

osh/word_parse.py

@@ -923,9 +923,8 @@ def ReadForExpression(self):
  def _ReadArrayLiteralPart(self):
    self._Next(lex_mode_e.OUTER)  # advance past (
    self._Peek()
    if self.cur_token.id != Id.Op_LParen:
      self.AddErrorContext('Expected ( after =', token=self.cur_token)
      return None
    # Checked by caller
    assert self.cur_token.id == Id.Op_LParen, self.cur_token

    # MUST use a new word parser (with same lexer).
    w_parser = WordParser(self.lexer, self.line_reader)
@@ -944,9 +943,8 @@ def _ReadArrayLiteralPart(self):
        elif word_id == Id.Op_Newline:
          continue
        else:
          self.AddErrorContext(
              'Unexpected word in array literal: %s', w, word=w)
          return None
          # TokenWord
          p_die('Unexpected token in array literal: %r', w.token.val, word=w)

      words.append(w)

@@ -1077,9 +1075,6 @@ def _ReadArithWord(self):
      # Just return EOF token
      w = ast.TokenWord(self.cur_token)
      return w, False
      #self.AddErrorContext("Unexpected EOF in arith context: %s",
      #    self.cur_token, token=self.cur_token)
      #return None, False

    elif self.token_kind == Kind.Ignored:
      # Space should be ignored.  TODO: change this to SPACE_SPACE and

test/parse-errors.sh

@@ -79,6 +79,9 @@ word-parse() {
  _error-case 'for (( i = 0; i < 10; i++ /'

  _error-case 'echo @(extglob|foo'

  # Array literal with invalid TokenWord.
  _error-case 'a=(1 & 2)'
}

quoted-strings() {