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Re: [ddlm-group] Use of elides in strings

• To: Group finalising DDLm and associated dictionaries <ddlm-group@iucr.org>
• Subject: Re: [ddlm-group] Use of elides in strings
• From: James Hester <jamesrhester@gmail.com>
• Date: Mon, 23 Nov 2009 16:20:13 +1100
• In-Reply-To: <alpine.BSF.2.00.0911222302180.68863@epsilon.pair.com>
• References: <C73024F0.12573%nick@csse.uwa.edu.au><alpine.BSF.2.00.0911222302180.68863@epsilon.pair.com>

For what it is worth, I have inserted my understanding of what NIck
and I propose as a minimal eliding system, by referring to Nick's
previous emails in this thread.

The asterisks indicate transformations that we haven't discussed here,
as in these cases we have terminator sequences rather than single
characters.  Other approaches are possible in these cases, as the
terminator sequence can be broken up.  In these cases custom
dictionary-driven eliding is probably much more reasonable, ie. the
syntax specification would not provide an eliding mechanism and the
cut-and-paste brigade might get a bit more mileage.

On Mon, Nov 23, 2009 at 3:13 PM, Herbert J. Bernstein
<yaya@bernstein-plus-sons.com> wrote:
> I am now totally lost.  Please start over with a coherent proposal
> for the syntax of a quoted string.  In particular, please state
> how the following strings will be parsed
>
> "ab\"cd"                 -> ab"cd
> 'ab\"cd'                      ab\"cd
> "ab\\"cd"                    ab\"cd
> 'ab\\"cd'                     ab\\"cd
>
> ;ab\"cd\                     (*)
> ;
>
> ;ab\\"cd\\                   (*)
> ;
>
> """ab\""""                   (*)
> """ab\\""""                  (*)
>
>
> {"abcd\"":ggg}          {abcd":ggg}
> {'abcd\"':ggg}           {abcd\":ggg}
>
> "resum\'ee"              resum\'e
> 'resum\'ee'               resum'e

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