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Re: [ddlm-group] Fwd: Fwd: Searching for a compromise on eliding. .


On Monday, February 28, 2011 10:31 AM, SIMON WESTRIP wrote:

>As I understand F or F', doubling of backslashes would only really be required
>when a literal backslash is needed at the end of a line, because, as in python,
>all unrecognized escape sequences are returned 'as is', e.g.
> ``\a\b\c\ \'\"`` will be returned as \a\b\c\ \'\" ?

F' and G would require backslash doubling only when a literal backslash appears at the end of a line.  If a line ends with multiple literal backslashes, then only the last one would or should be doubled.

F and GP would require backslash doubling when a literal backslash appears at the end of a line, and also when a literal double-backslash appears anywhere (in which case both backslashes would need to be doubled, \\ -> \\\\).  Other backslashes could be doubled for consistency, but that would be optional.

These proposals all provide for syntax-level line folding and for including arbitrary text.  So also do P, P', and Q.


John

>________________________________________
>From: Brian McMahon <bm@iucr.org>
>To: Group finalising DDLm and associated dictionaries <ddlm-group@iucr.org>
>Sent: Monday, 28 February, 2011 15:11:59
>Subject: Re: [ddlm-group] Fwd: Fwd: Searching for a compromise on eliding
>
>I'm still working through my backlog of work and haven't time yet to
>consider this in detail, but the converstaion has caught my attention:
>this approach seems to offer us a solution with line-folding and the
>ability to include arbitrary text. Is that right? If so, persistent
>doubling of the backslash in cases such as TeX I would consider a
>minor nuisance compared with the overall gain in functionality.
>
>Regards
>Brian


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