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Re: syntax error while parsing a case command within `$(...)'

From: Andreas Schwab
Subject: Re: syntax error while parsing a case command within `$(...)'
Date: Wed, 17 Feb 2021 17:14:23 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1.91 (gnu/linux)

On Feb 17 2021, Koichi Murase wrote:

> Yes, that's what I wanted to claim by the above example, that is, XCU
> 2.4 isn't the (most) essential point for the reason that `fi esac' or
> `fi fi` is a valid construct. The above example is just a
> counter-example against explaining `fi esac` by solely XCU 2.4.

XCU 2.4 only explains when words are to be recognized as reserved words
(the lexer part of parsing).  Only because of these rules the `fi esac'
example contains two consecutive reserved words.  The grammar depends on
having these rules in place, and then applies more rules on the
placement of tokens.


Andreas Schwab, schwab@linux-m68k.org
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