[L2Ork-dev] Fwd: [PD] What is the purpose of iemgui_raute2dollar

[Ivica Bukvic]

Forgot to include pd-list and l2ork-dev list...

---------- Forwarded message ----------
From: Ivica Bukvic <ico at vt.edu>
Date: Mon, Nov 2, 2015 at 12:01 AM
Subject: Re: [PD] What is the purpose of iemgui_raute2dollar
To: Miller Puckette <msp at ucsd.edu>


So, I am about to commit a 'fix' in pd-l2ork where one can now have labels
(for gatoms and arrays as well) where escaped $ is converted into ASCII
0x01 (SOH). This seems to side-step the issue for the time-being. Does this
affect other objects?

The ideal fix would be using negative ascii values (e.g. -0x80) but those
don't seem to cut the mustard once they are received by tcl/tk...

Best,

Ico

On Sun, Nov 1, 2015 at 11:04 PM, Miller Puckette <msp at ucsd.edu> wrote:

> This does need fixing... it's a primitive escaping mechanism which needs to
> be replaced with a "correct" one.  Unfortunately there are various places
> in the code that escape stuff in various ways (to get strings past
> the TCL parser or the Pd parser) and it's never been thought about in a
> unified way.
>
> cheers
> Miller
>
> On Sun, Nov 01, 2015 at 10:57:42PM -0500, Ivica Bukvic wrote:
> > Right, but this function does not do that, it explicitly replaces # with
> $.
> > What does # have to do with anything? Are you saying # is being
> substituted
> > for $ to preserve it? Even so, this still makes no sense because if you
> > create an iemgui object (pick one), then add a label with only a "#" in
> it.
> > Once you click apply, you get $ on the label instead. Reopening
> properties
> > provides you with a label that is equal to $, so  this sounds like a bug
> to
> > me that does some sort of one-way mangling that needs to be fixed and
> more
> > so, it seems to me there should be a different ascii character used to
> > preserve $, one that does not exist in the regular text-based ascii
> > chars... e.g. in pd-l2ork we use \t to substitute for \n and thus
> preserve
> > endlines in comments and other places.
> >
> > On Sun, Nov 1, 2015 at 10:33 PM, Jonathan Wilkes <jancsika at yahoo.com>
> wrote:
> >
> > > Because Pd's parser is likely to eat up a "$" followed by a number as a
> > > banking
> > > fee to pay the cost of sending messages.  :)
> > >
> > > Send this from the GUI:
> > > (canvas_addy) obj 0 0 clip $1 $2
> > >
> > > and it becomes this in Pd:
> > > [clip 0 0]
> > >
> > > There's also sys_decodeddialog/sys_encodedialog that is used for
> > > canvas_find.
> > >
> > > Additionally, I think you may have added another parser inside s_main
> > > to separate filenames in Pd-l2ork (although that one doesn't have
> anything
> > > to do with dollarsigns).
> > >
> > > I have not yet decided where I want to add my own parser for the GUI
> port.
> > > I think a Pratt parser for message-box math would be neat.
> > >
> > > -Jonathan
> > >
> > >
> > >
> > > On Sunday, November 1, 2015 9:38 PM, Ivica Bukvic <ico at vt.edu> wrote:
> > >
> > >
> > > I presume this may pertain primarily to IOhannes and Miller,
> > >
> > > I am trying to figure out what is the purpose of raute2dollar in iemgui
> > > objects? On an obvious level the function replaces # with an $ in a
> send,
> > > receive, and label symbols. Why is this necessary? Personally, I cannot
> > > think of a reason why it would be, but then again, I may very well be
> > > missing something...
> > >
> > > Best,
> > >
> > > Ico
> > >
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> > >
>
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