[PD] Expr V0.5-alpha

[Jonathan Wilkes]

Array.foreach in Javascript runs over the whole array.  Just as [list-drip] 
necessarily drips the entire list.
-Jonathan
 

    On Sunday, February 7, 2016 12:23 AM, Matt Barber <brbrofsvl at gmail.com> wrote:
 

 Any iterator should be over a range, not the whole array.
On Sat, Feb 6, 2016 at 11:52 AM, Jonathan Wilkes via Pd-list <pd-list at lists.iem.at> wrote:

Also-- since you have assignment operator now, would it make sense to have an iterator function for garrays?

Something like:iterate(array_name, expression), where expression is evaluated for each element of the array.  Maybe an i() function to get the iteration 
number.
-Jonathan 

    On Saturday, February 6, 2016 10:48 AM, Jonathan Wilkes <jancsika at yahoo.com> wrote:
 

 Also, since you mentioned documentation:
https://github.com/pd-l2ork/pd/blob/master/doc/pddp/expr-help.pdhttps://github.com/pd-l2ork/pd/blob/master/doc/pddp/expr%7E-help.pdhttps://github.com/pd-l2ork/pd/blob/master/doc/pddp/fexpr%7E-help.pdhttps://github.com/pd-l2ork/pd/blob/master/doc/pddp/all_about_expr_and_value.pdhttps://github.com/pd-l2ork/pd/blob/master/doc/pddp/all_about_expr_functions.pdhttps://github.com/pd-l2ork/pd/blob/master/doc/pddp/all_about_expr_if.pdhttps://github.com/pd-l2ork/pd/blob/master/doc/pddp/all_about_expr_multiline.pd
-Jonathan
 

    On Friday, February 5, 2016 8:45 PM, Jonathan Wilkes via Pd-list <pd-list at lists.iem.at> wrote:
 

 Sounds great!
 

    On Friday, February 5, 2016 8:37 PM, Shahrokh Yadegari <sdy at ucsd.edu> wrote:
 

 Dear All,
Attached is a pre-release of Expr 0.5 compiled for Mac os x (compiled on 10.9) and Linux (compiled on an older Cent OS). I have also attached Alexandre's big pd patch which listed the issues, with my comments.
Hopefully I have addressed most of the issues that were brought up and now I am working on a more complete documentation of Expr objects. One open issue is that expr still supports no more than 10 expressions.
I have provided a mechanism for local variables and abstraction substitutions ($0 and $1, $2, etc.) to work. Also, one hopefully useful new feature in V0.5 is the assign  '='  operator. Now you can use expr to assign to "value"s and into arrays. So if you have a variable called 'count'
"value count"
"expr count = count + 1"
will implement a counter, raising the value of count with every "bang"
You can also change values of arrays through the usual syntax.
"expr array1[5] = $f1"
will set the sixth value (counting zero based) of the array "array1" to the incoming float value on inlet 1.
I will write a more informative and comprehensive release notes along with the documentation when I pass the sources to Miller. However, I have made a few changes to the parser and I am looking for alpha-testers who can run the code and let me know if any bugs are found, specially in parsing of complex expressions. 
I look forward to hearing from whoever uses these objects. Please let me know if you find any bugs. (NOTE: you need to create the links for expr and fexpr~ to get the new version for those as well.)
cheers,Shahrokh

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