Hi,

I have attached a patch which works for me on Mac OS X. I tried a similar patch on linux and windows and they worked too. So I hope this helps.

BTW, while trying this I found a bug in expr, which will be fixed soon. The functions do not check for null pointers. So if you bang the expr in this example without setting $s2 first, pd will core dump.

Shahrokh.

On May 24, 2005, at 1:10 AM, Jamie Bullock wrote:

Hi!

I just tried as you suggested below. [expr] mysteriously replaces the double quotes with whitespace, and gives the same console error as before.

Regards, Jamie

On Mon, 2005-05-23 at 13:40 -0700, Shahrokh Yadegari wrote:

...

...

Jamie,

The correct syntax for what you are looknig for is

expr size("$s2")

note the double quotes.

cheers, Shahrokh.

...

Date: Mon, 23 May 2005 14:45:56 +0100 From: Jamie Bullock jamie@postlude.co.uk Subject: [PD] expr table functions To: PD List pd-list@iem.at Message-ID: 1116855956.7943.8.camel@localhost.localdomain Content-Type: text/plain

Hi!

Has anyone successfully used the table functionality offered by [expr]? I can get simple table lookup to work as follows:

float x symbol y | | [expr $s2[$f1]]

But I can't get any of the table functions to work. For example, [expr size($s1)] gives the following console output:

error: expr: syntax error expr size($s1) ... couldn't create

I am using expr 0.4 with PD 0.37.1 on Linux.

Thanks,

Jamie

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Hmmm... that patch doesn't work on my system, it demonstrates the same behaviour I mention below i.e. the quotes disappear and the object is not created. Maybe it is an incompatibility between [expr] 0.4 and my version of PD - 0.37.1 devel?

hm ... i don't think, that it's a devel issue ... the patch works fine on devel_0_38_2 ....

basically i'd suggest to use devel_0_38 instead of devel_0_37 ... it has fewer bugs and better latencies ...

cheers ... tim