[PD-dev] [ pure-data-Patches-1405137 ] multiple $arg-expansion

[B. Bogart]

Wow.

I like this.

.b.

SourceForge.net wrote:
> Patches item #1405137, was opened at 2006-01-13 20:33
> Message generated for change (Tracker Item Submitted) made by Item Submitter
> You can respond by visiting:
> https://sourceforge.net/tracker/?func=detail&atid=478072&aid=1405137&group_id=55736
>
> Please note that this message will contain a full copy of the comment thread,
> including the initial issue submission, for this request,
> not just the latest update.
> Category: puredata
> Group: wishlist
> Status: Open
> Resolution: None
> Priority: 5
> Submitted By: IOhannes m zmölnig (zmoelnig)
> Assigned to: Miller Puckette (millerpuckette)
> Summary: multiple $arg-expansion
>
> Initial Comment:
> currently $args can only be at the beginning of a
> A_DOLLARSYM.
>
> this patch allows to have multiple $args within 1
> A_DOLLARSYM.
> e.g. with "foo bar me" the symbol "$1-bla-$3/$2" will
> expand to "foo-bla-me/bar"
>
> the patch only modifies binbuf_realizedollsym() in
> m_binbuf.c (and adds another non-exported helper
> function binbuf_expanddollsym())
>
> the patch is straightforward, but probably i
> misunderstood the meaning of "tonew" and implemented it
> in a wrong way (so you should check that)
>
> caveat: the A_DOLLARSYM still has to start with
> "$[0-9]". this is the way, pd determines whether a
> given symbol should be $-expanded or not. furthermore,
> the leading $ is usually stripped by pd.
> e.g. if you type [$1-bar-$2], the symbol "1-bar-$2" is
> stored as A_DOLLARSYM. this means that the beginning of
> the dollarsymbol always has to be expanded.
> furthermore,  [bar-$2] will _never_ be expanded (since
> pd thinks it is an ordinary symbol).
>
> i didn't dare to change this behaviour since
> SETDOLLARSYM() and binbuf_realizedollsym() are exposed
> in m_pd.h and probably used in externals which would
> then break.
> however, whenever this might change,
> binbuf_expanddollsym() is prepared (just need to "#if 1")
>
>
>
> ----------------------------------------------------------------------
>
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> https://sourceforge.net/tracker/?func=detail&atid=478072&aid=1405137&group_id=55736
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