[ESS] fighting indentation in SAS mode
spinuvit at gmail.com
Wed Nov 6 22:42:35 CET 2013
Could you please prepare a file with a sample SAS code in which you
would put all the bugs you found with examples. Similar to what we have
in etc/R-ess-bugs.R. I don't use SAS but I will try to find time to look
Would be nice if ESS indentation be compatible with SAS editor.
PS: Tabs are controlled by indent-tabs-mode; if it is t, emacs inserts
spaces. This might be the reason for your backspace problem.
>>> Ross Boylan on Wed, 06 Nov 2013 13:17:02 -0800 wrote:
RB> On Wed, 2013-11-06 at 09:38 -0600, Rodney Sparapani wrote:
>> On 11/06/2013 07:31 AM, Martin Maechler wrote:
>> > By default, using ESS SAS mode should be more gratifying than plain text
>> > mode, right?
>> > So is there something which should be changed in ESS, i.e., ESS
>> > 13.09-1 which is planned to be released
>> > within about a week ?
>> I don't see an issue. But, this is a good time to speak up or forever
>> hold your peace ;o) And, as always, patches welcome!
>> > Thanks for clarification,
>> > Martin
RB> I did some more tests.
RB> First, it appears that SAS mode remembers the furthest right tab stop
RB> you use, even inside commments, and wants to indent all later lines to
RB> that point.
RB> Second, "later" means chronologically later. Even lines above the spot
RB> where the tab is used are affected if typed in after using that tab
RB> Third, deleting at a tab stop always takes you back one space, not one
RB> tab stop. This is not the behavior of the SAS editor, and not too
RB> helpful when one is seeking to end from a nesting level.
RB> Fourth, syntax is colorized in a helpful way. The coloring seems to
RB> know the exact procedures defined in SAS since "proc nlmixed;" is
RB> colored by "proc nlm;" is not. This is consistent with the behavior of
RB> the SAS editor, and is helpful for catching typos. OTOH, it means the
RB> code is a bit brittle, since as SAS adds procedures (or maybe changes
RB> syntax, e.g., adding options) the ESS code would need to be updated.
RB> (If you're being really picky, it would need to know which version of
RB> SAS was being targetted. However, the set of SAS procedures is pretty
RB> stable). Also, SAS has tons of add-on modules; I haven't checked how
RB> many of them are covered.
RB> Obviously I'd like different behavior (for 1-3 above). Also obviously
RB> it's been this way for quite awhile, and so the new release won't be any
RB> worse than the old ones if nothing is done.
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