From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Nikolay Kudryavtsev <nikolay.kudryavtsev@gmail.com>
Cc: help-gnu-emacs@gnu.org, "Kévin Le Gouguec" <kevin.legouguec@gmail.com>
Subject: Re: Debugging SMIE for sh-script.el
Date: Mon, 06 Sep 2021 16:23:04 -0400 [thread overview]
Message-ID: <jwvlf495uif.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <829bc30d-41a7-c630-a568-00e7f18f1407@gmail.com> (Nikolay Kudryavtsev's message of "Mon, 6 Sep 2021 20:24:37 +0300")
> returned by the smie lexer as "" when it runs into them from the outside.
There's no such thing as "the smie lexer":
Every major mode uses the lexer it wants with the behavior it fancies.
If the lexer decides to return nil when bumping into a char with paren
or string syntax then SMIE will treat it as a sign that this should be
handled in the "normal" way. The main benefit is that paired parens can
then be skipped with things like `forward-sexp` which is much faster
than letting SMIE do the lexing+parsing inside the pair.
But a lexer doesn't have to do that. An example would be when the
parens are escaped, e.g, in ELisp, `foo\(toto\)bar` is a single symbol
so an SMIE lexer for ELisp should handle it as a single token.
Stefan
next prev parent reply other threads:[~2021-09-06 20:23 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-02 10:49 Debugging SMIE for sh-script.el Kévin Le Gouguec
2021-09-02 12:07 ` Nikolay Kudryavtsev
2021-09-02 17:19 ` Kévin Le Gouguec
2021-09-02 18:09 ` Nikolay Kudryavtsev
2021-09-02 20:29 ` Kévin Le Gouguec
2021-09-02 19:50 ` Stefan Monnier via Users list for the GNU Emacs text editor
2021-09-02 21:37 ` Kévin Le Gouguec
2021-09-02 23:54 ` Stefan Monnier via Users list for the GNU Emacs text editor
2021-09-03 7:09 ` Kévin Le Gouguec
2021-09-03 12:12 ` Stefan Monnier
2021-09-05 15:48 ` Nikolay Kudryavtsev
2021-09-05 16:27 ` Stefan Monnier via Users list for the GNU Emacs text editor
2021-09-05 16:41 ` Nikolay Kudryavtsev
2021-09-05 17:23 ` Stefan Monnier via Users list for the GNU Emacs text editor
2021-09-05 18:01 ` Nikolay Kudryavtsev
2021-09-05 23:02 ` Stefan Monnier
2021-09-06 12:47 ` Nikolay Kudryavtsev
2021-09-06 14:01 ` Stefan Monnier
2021-09-06 17:24 ` Nikolay Kudryavtsev
2021-09-06 20:23 ` Stefan Monnier [this message]
2021-09-12 17:40 ` Kévin Le Gouguec
2021-09-02 19:47 ` Stefan Monnier via Users list for the GNU Emacs text editor
2021-09-02 20:39 ` Kévin Le Gouguec
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