Author: Stan Eisenstat
Subject: Re: [Cs323] Escaped = follow-up
Date: Sunday, 27 Sep 2020, 19:02:58

    > Message Posted By: Unknown
    >
    > If the escape character \ removes any special meaning, is this output expected?
    >
    > $ text\=text
    > parsley: null command
    >
    > I would have expected the output to be:
    > CMD (Depth = 0):  SIMPLE,  argv[0] = text=text

As stated in the specification,

  Aside: The grammar is ambiguous in the sense that in the input
    % A=B
  parsley could treat the TEXT token A=B as an argument in a valid command or
  as a local in an invalid one.  Similarly, for the input
    % A=B C=D E
  it could treat A=B and C=D as locals, or treat A=B as a local and C=D as an
  argument, or treat A=B and C=D as arguments; all of which result in valid
  commands.  To resolve the ambiguity we will assume that a TEXT token of the
  form NAME=VALUE is always treated as a [local] if it can be.

Thus test\=text is treated as a local, which means that
the command does not contain any arguments; i.e., it is a
null command.

--Stan-