hi oeyvind -

i think this is expected behaviour.  i wrote about it in
https://flossmanual.csound.com/csound-language/initialization-and-performance-pass#k-values-and-initialization-in-multiple-triggered-instruments

or is this a different case?

cheers -
	joachim


On 15/12/2021 11:14, Oeyvind Brandtsegg wrote:
> Hi,
> I am trying to parse comma separated numbers in a string (as to send 
> them one by one to another process). Something odd is happening so that 
> my instrument works correctly the first time it starts, but then when it 
> is started again the first item of the string is not converted to a number.
> 
> It might look like some k-rate string opcodes somehow retain their state 
> from previous initializations (??)
> 
> The csd below shows the problem. Running instr 1 should print the 
> numbers in the string one by one. This happens correctly the first time 
> the instrument runs, but it only prints 2 and 3 the second time the 
> instrument runs.
> 
> As a test I have recreated the same procedure with i-time string opcodes 
> in instr 2. This works every time. Sadly, I do need to make it work at 
> k-rate...
> 
> All best
> Øyvind
> 
> 
> 
> 
> -n
> 
> 
> 
> 
> instr 1
>    Snumbers = "1,2,3"
>    Snumbers strcat Snumbers, ","
>    kcomma strindexk Snumbers, ","
>    while kcomma > -1 do
>      Sval strsubk Snumbers, 0, kcomma
>      kval strtodk Sval
>      printk2 kval, 10
>      Snumbers strsubk Snumbers, kcomma+1, -1
>      kcomma strindexk Snumbers, ","
>    od
> endin
> 
> instr 2
>    Snumbers = "1,2,3"
>    Snumbers strcat Snumbers, ","
>    icomma strindex Snumbers, ","
>    while icomma > -1 do
>      Sval strsub Snumbers, 0, icomma
>      ival strtod Sval
>      print ival
>      Snumbers strsub Snumbers, icomma+1, -1
>      icomma strindex Snumbers, ","
>    od
> endin
> 
> 
> 
> i1 0 .1
> i1 1 .1
> 
> ;i2 2 .1
> ;i2 3 .1
> 
> 
> 
> 
> Csound mailing list Csound@listserv.heanet.ie 
>  
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND 
>  Send bugs reports to 
> https://github.com/csound/csound/issues 
>  Discussions of bugs and 
> features can be posted here

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hi oeyvind -

you are right; this is not the same as the case which i thought it was. 
  (i had no time to look closer this afternoon and just reacted to your 
desription.)

now i had a closer look and i think the problem is that in your code you 
mix i- and k-rate.  when you go consequently to k-rate, it works for me:

instr 1
   Snumbers strcpyk "1,2,3"
   Snumbers strcatk Snumbers, ","
   kcomma strindexk Snumbers, ","
   while kcomma > -1 do
     Sval strsubk Snumbers, 0, kcomma
     kval strtodk Sval
     printk2 kval, 10
     Snumbers strsubk Snumbers, kcomma+1, -1
     kcomma strindexk Snumbers, ","
   od
   turnoff
endin

ciao -
	joachim



On 15/12/2021 18:38, Oeyvind Brandtsegg wrote:
> Oh I see now what you meant. The link sent me to the top of the page 
> first, so I checked again scrolling down to the section about multiple 
> passes. But is still don't see how it applies to the code I sent. Could 
> you be so kind to explain it in terms of my example code?
> 
> ons. 15. des. 2021, 6:09 p.m. skrev Oeyvind Brandtsegg 
> >:
> 
>     Hi Joachim
>     I think it is a different case. The issue is that the instrument
>     produce different output the second time it is initialized. I would
>     not expect such behavior in any case where all variables are local
>     to the instrument instance.
> 
>     All best
>     Øyvind
> 
>     ons. 15. des. 2021, 4:31 p.m. skrev joachim heintz
>     >:
> 
>         hi oeyvind -
> 
>         i think this is expected behaviour.  i wrote about it in
>         https://flossmanual.csound.com/csound-language/initialization-and-performance-pass#k-values-and-initialization-in-multiple-triggered-instruments
>         
> 
>         or is this a different case?
> 
>         cheers -
>                  joachim
> 
> 
>         On 15/12/2021 11:14, Oeyvind Brandtsegg wrote:
>          > Hi,
>          > I am trying to parse comma separated numbers in a string (as
>         to send
>          > them one by one to another process). Something odd is
>         happening so that
>          > my instrument works correctly the first time it starts, but
>         then when it
>          > is started again the first item of the string is not
>         converted to a number.
>          >
>          > It might look like some k-rate string opcodes somehow retain
>         their state
>          > from previous initializations (??)
>          >
>          > The csd below shows the problem. Running instr 1 should print
>         the
>          > numbers in the string one by one. This happens correctly the
>         first time
>          > the instrument runs, but it only prints 2 and 3 the second
>         time the
>          > instrument runs.
>          >
>          > As a test I have recreated the same procedure with i-time
>         string opcodes
>          > in instr 2. This works every time. Sadly, I do need to make
>         it work at
>          > k-rate...
>          >
>          > All best
>          > Øyvind
>          >
>          >
>          > 
>          > 
>          > -n
>          > 
>          >
>          > 
>          >
>          > instr 1
>          >    Snumbers = "1,2,3"
>          >    Snumbers strcat Snumbers, ","
>          >    kcomma strindexk Snumbers, ","
>          >    while kcomma > -1 do
>          >      Sval strsubk Snumbers, 0, kcomma
>          >      kval strtodk Sval
>          >      printk2 kval, 10
>          >      Snumbers strsubk Snumbers, kcomma+1, -1
>          >      kcomma strindexk Snumbers, ","
>          >    od
>          > endin
>          >
>          > instr 2
>          >    Snumbers = "1,2,3"
>          >    Snumbers strcat Snumbers, ","
>          >    icomma strindex Snumbers, ","
>          >    while icomma > -1 do
>          >      Sval strsub Snumbers, 0, icomma
>          >      ival strtod Sval
>          >      print ival
>          >      Snumbers strsub Snumbers, icomma+1, -1
>          >      icomma strindex Snumbers, ","
>          >    od
>          > endin
>          >
>          > 
>          > 
>          > i1 0 .1
>          > i1 1 .1
>          >
>          > ;i2 2 .1
>          > ;i2 3 .1
>          >
>          > 
>          > 
>          >
>          > Csound mailing list Csound@listserv.heanet.ie
>         
>          >          >
>          > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>         
>          >          > Send bugs
>         reports to
>          > https://github.com/csound/csound/issues
>         
>          >          > Discussions of bugs and
>          > features can be posted here
> 
>         Csound mailing list
>         Csound@listserv.heanet.ie 
>         https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>         
>         Send bugs reports to
>         https://github.com/csound/csound/issues
>         
>         Discussions of bugs and features can be posted here
> 
> Csound mailing list Csound@listserv.heanet.ie 
>  
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND 
>  Send bugs reports to 
> https://github.com/csound/csound/issues 
>  Discussions of bugs and 
> features can be posted here

Csound mailing list
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yes i think, too =)

On 16/12/2021 15:05, Oeyvind Brandtsegg wrote:
> Oh, good catch. Thanks for looking into the details of my code. And 
> thanks for the workaround.
> op, if I need to insert an i-rate string into this, I could make that 
> work with
> '''
>    Sinput = "1,2,3"
>    Snumbers strcpyk Sinput
>    ... and so on, rest of the instr like you wrote it
> '''
> 
> It looks like this is an oddity that could trip up many users (don't you 
> think?). Especially since the relation between i- and k-rate for string 
> variables seems to work differently than one would experience with 
> regular numeric i- and k-variables. I have posted an issue at github 
> about it, and hope the community agrees that it would be more clear if 
> this oddity did not occur.
> 
> Thanks and best
> Øyvind
> 
> ons. 15. des. 2021 kl. 22:17 skrev joachim heintz  >:
> 
>     hi oeyvind -
> 
>     you are right; this is not the same as the case which i thought it was.
>        (i had no time to look closer this afternoon and just reacted to
>     your
>     desription.)
> 
>     now i had a closer look and i think the problem is that in your code
>     you
>     mix i- and k-rate.  when you go consequently to k-rate, it works for me:
> 
>     instr 1
>         Snumbers strcpyk "1,2,3"
>         Snumbers strcatk Snumbers, ","
>         kcomma strindexk Snumbers, ","
>         while kcomma > -1 do
>           Sval strsubk Snumbers, 0, kcomma
>           kval strtodk Sval
>           printk2 kval, 10
>           Snumbers strsubk Snumbers, kcomma+1, -1
>           kcomma strindexk Snumbers, ","
>         od
>         turnoff
>     endin
> 
>     ciao -
>              joachim
> 
> 
> 
>     On 15/12/2021 18:38, Oeyvind Brandtsegg wrote:
>      > Oh I see now what you meant. The link sent me to the top of the page
>      > first, so I checked again scrolling down to the section about
>     multiple
>      > passes. But is still don't see how it applies to the code I sent.
>     Could
>      > you be so kind to explain it in terms of my example code?
>      >
>      > ons. 15. des. 2021, 6:09 p.m. skrev Oeyvind Brandtsegg
>      > 
>     >>:
>      >
>      >     Hi Joachim
>      >     I think it is a different case. The issue is that the instrument
>      >     produce different output the second time it is initialized. I
>     would
>      >     not expect such behavior in any case where all variables are
>     local
>      >     to the instrument instance.
>      >
>      >     All best
>      >     Øyvind
>      >
>      >     ons. 15. des. 2021, 4:31 p.m. skrev joachim heintz
>      >     
>     >>:
>      >
>      >         hi oeyvind -
>      >
>      >         i think this is expected behaviour.  i wrote about it in
>      >
>     https://flossmanual.csound.com/csound-language/initialization-and-performance-pass#k-values-and-initialization-in-multiple-triggered-instruments
>     
>      >       
>       >
>      >
>      >         or is this a different case?
>      >
>      >         cheers -
>      >                  joachim
>      >
>      >
>      >         On 15/12/2021 11:14, Oeyvind Brandtsegg wrote:
>      >          > Hi,
>      >          > I am trying to parse comma separated numbers in a
>     string (as
>      >         to send
>      >          > them one by one to another process). Something odd is
>      >         happening so that
>      >          > my instrument works correctly the first time it
>     starts, but
>      >         then when it
>      >          > is started again the first item of the string is not
>      >         converted to a number.
>      >          >
>      >          > It might look like some k-rate string opcodes somehow
>     retain
>      >         their state
>      >          > from previous initializations (??)
>      >          >
>      >          > The csd below shows the problem. Running instr 1
>     should print
>      >         the
>      >          > numbers in the string one by one. This happens
>     correctly the
>      >         first time
>      >          > the instrument runs, but it only prints 2 and 3 the second
>      >         time the
>      >          > instrument runs.
>      >          >
>      >          > As a test I have recreated the same procedure with i-time
>      >         string opcodes
>      >          > in instr 2. This works every time. Sadly, I do need to
>     make
>      >         it work at
>      >          > k-rate...
>      >          >
>      >          > All best
>      >          > Øyvind
>      >          >
>      >          >
>      >          > 
>      >          > 
>      >          > -n
>      >          > 
>      >          >
>      >          > 
>      >          >
>      >          > instr 1
>      >          >    Snumbers = "1,2,3"
>      >          >    Snumbers strcat Snumbers, ","
>      >          >    kcomma strindexk Snumbers, ","
>      >          >    while kcomma > -1 do
>      >          >      Sval strsubk Snumbers, 0, kcomma
>      >          >      kval strtodk Sval
>      >          >      printk2 kval, 10
>      >          >      Snumbers strsubk Snumbers, kcomma+1, -1
>      >          >      kcomma strindexk Snumbers, ","
>      >          >    od
>      >          > endin
>      >          >
>      >          > instr 2
>      >          >    Snumbers = "1,2,3"
>      >          >    Snumbers strcat Snumbers, ","
>      >          >    icomma strindex Snumbers, ","
>      >          >    while icomma > -1 do
>      >          >      Sval strsub Snumbers, 0, icomma
>      >          >      ival strtod Sval
>      >          >      print ival
>      >          >      Snumbers strsub Snumbers, icomma+1, -1
>      >          >      icomma strindex Snumbers, ","
>      >          >    od
>      >          > endin
>      >          >
>      >          > 
>      >          > 
>      >          > i1 0 .1
>      >          > i1 1 .1
>      >          >
>      >          > ;i2 2 .1
>      >          > ;i2 3 .1
>      >          >
>      >          > 
>      >          > 
>      >          >
>      >          > Csound mailing list Csound@listserv.heanet.ie
>     
>      >              >
>      >          >      
>      >              >>
>      >          > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>     
>      >              >
>      >          >      
>      >              >> Send bugs
>      >         reports to
>      >          > https://github.com/csound/csound/issues
>     
>      >              >
>      >          >      
>      >              >> Discussions of bugs and
>      >          > features can be posted here
>      >
>      >         Csound mailing list
>      > Csound@listserv.heanet.ie 
>     >
>      > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>     
>      >              >
>      >         Send bugs reports to
>      > https://github.com/csound/csound/issues
>     
>      >              >
>      >         Discussions of bugs and features can be posted here
>      >
>      > Csound mailing list Csound@listserv.heanet.ie
>     
>      >      >
>      > https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>     
>      >      > Send bugs reports to
>      > https://github.com/csound/csound/issues
>     
>      >      > Discussions of bugs and
>      > features can be posted here
> 
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>     https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
>     
>     Send bugs reports to
>     https://github.com/csound/csound/issues
>     
>     Discussions of bugs and features can be posted here
> 
> Csound mailing list Csound@listserv.heanet.ie 
>  
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND 
>  Send bugs reports to 
> https://github.com/csound/csound/issues 
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> features can be posted here

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