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| From: | Dmitry Gutov |
| Subject: | Re: Removing prog-indentation-context |
| Date: | Tue, 29 Mar 2016 00:37:20 +0300 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.0 |
On 03/25/2016 05:45 PM, Vitalie Spinu wrote:
I think the third element of prog-indentation-context is unlikely to be used by major-modes anyways. Firstly due to inherent complexity of the concept, secondly due to undefined, multi-mode specific, semantics of what to do with those spans/chunks.
I concur.
In any case, multi-mode engines can ignore prog-indentation-context. My bet is that they will always do so, at least because there is no reliable way to identify modes which use it and modes which don't.
prog-indent-function would indeed be a better alternative to prog-first-column, not least because of being able to easily identify modes that support it.
prog-widen, though, would be a decent fallback, if none of the hard-widen or "islands" discussions reaches a satisfying conclusion.
In that case, we'd be saddled with (font-lock|syntax-ppss)-dont-widen, but since there's nothing a multi-mode can do when a submode widens (is there?), it would just behave the same and hope that all major modes either don't use widen at all, or switch to prog-widen.
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