From: NeilBrown <neil@brown.name>
Date: Tue, 6 Oct 2020 06:02:22 +0000 (+1100)
Subject: parsegen: detect left-recursive symbols in non-final position.
X-Git-Url: https://ocean-lang.org/code/?a=commitdiff_plain;h=abe144f0999c5576e18c74324c2436cd6bd65b2d;hp=abe144f0999c5576e18c74324c2436cd6bd65b2d;p=ocean

parsegen: detect left-recursive symbols in non-final position.

A left-recursive symbol that appear other than at the end of a
production causes problem for indent-based parsing, as describe in the
document.  So teach parsergen to be able to report them.

Ocean currently has several of these, which I'll need to look into at a
later date.

Signed-off-by: NeilBrown <neil@brown.name>
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