SHELL_SCRIPT
  COMMANDS_LIST
    CASE_COMMAND
      PsiElement(case)('case')
      PsiErrorElement:'!', $, <number>, <string>, ARITH_SQUARE_LEFT, OPEN_BACKQUOTE, file descriptor, var or '{' expected, got 'esac'
        <empty list>
      PsiWhiteSpace(' ')
      PsiElement(esac)('esac')
  PsiElement(\n)('\n')
  COMMANDS_LIST
    SIMPLE_COMMAND
      GENERIC_COMMAND_DIRECTIVE
        LITERAL
          PsiElement(word)('echo')
      PsiWhiteSpace(' ')
      STRING
        PsiElement(OPEN_QUOTE)('"')
        PsiElement(STRING_CONTENT)('Example')
        PsiElement(CLOSE_QUOTE)('"')