That move it from a syntax issue to a semantics one and will work  
better with array access
You doing it or should I try?

==John

Quoting Steven Yi <stevenyi@gmail.com>:

> I think we could get a way with a simpler method, but looking at the
> parse tree for opcode or function nodes.  If it's "i", then check if
> the argument is a single node or an expression, then issue a warning.
> We could probably add that check during one of the other tree walk
> phases and not use another phase.  At least, in my head that'd work,
> but I'm not positive.
>
> On Fri, Apr 4, 2014 at 9:42 AM,  <jpff@cs.bath.ac.uk> wrote:
>> Would need to remove i from functions etc and lex it specially; think
>> it is doable.  But behind in e-mail
>>
>> Quoting Victor Lazzarini <Victor.Lazzarini@nuim.ie>:
>>
>>> Agreed that is an easy mistake and it should be protected somehow,
>>> but not sure how to tackle it
>>> right now. It would need to be made an exception in the parser.
>>> ========================
>>> Dr Victor Lazzarini
>>> Senior Lecturer
>>> NUI Maynooth, Ireland
>>> victor dot lazzarini at nuim dot ie
>>>
>>>
>>>
>>>
>>> On 4 Apr 2014, at 12:24, Oeyvind Brandtsegg
>>> <oyvind.brandtsegg@ntnu.no> wrote:
>>>
>>>> I see,
>>>> it is an easy mistake to make though.
>>>> I see now that it is noted in the manual,
>>>> but still, if one is not looking in the manual one could expect my
>>>> original code to work.
>>>> Could we make k-rate expressions illegal in this case, since it
>>>> otherwise can lead to unexpected results. If the parser would stop and
>>>> give an error message that k-rate expressions must be done outside the
>>>> i(.), I think it would be very helpful.
>>>> Oeyvind
>>>>
>>>> 2014-04-04 13:17 GMT+02:00 Victor Lazzarini <Victor.Lazzarini@nuim.ie>:
>>>>> it's because in i(.) the . has to be a variable (which is actually
>>>>> a memory address).
>>>>> ========================
>>>>> Dr Victor Lazzarini
>>>>> Senior Lecturer
>>>>> NUI Maynooth, Ireland
>>>>> victor dot lazzarini at nuim dot ie
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On 4 Apr 2014, at 10:24, Oeyvind Brandtsegg
>>>>> <oyvind.brandtsegg@ntnu.no> wrote:
>>>>>
>>>>>> I wonder if this is a bug,
>>>>>> I would expect i2 and i3 to be equal in the following example,
>>>>>> but they are not.
>>>>>> Almost as if i(kswitch+1) reads the *previous i-time value* of kswitch
>>>>>> somehow (??)
>>>>>>
>>>>>> <CsoundSynthesizer>
>>>>>> <CsOptions>
>>>>>> </CsOptions>
>>>>>> <CsInstruments>
>>>>>>
>>>>>>   sr    =    44100
>>>>>>   kr    =    441
>>>>>>   ksmps    =    100
>>>>>>   nchnls    =    2
>>>>>>
>>>>>>   instr 1
>>>>>>
>>>>>>   kmetro     metro 1
>>>>>>   kswitch    init 0
>>>>>>   kswitch    = (kswitch+kmetro)%2
>>>>>>   printk2 kswitch
>>>>>>   if kmetro > 0 then
>>>>>>   reinit testme
>>>>>>   endif
>>>>>>
>>>>>> testme:
>>>>>>   i1    = i(kswitch)
>>>>>>   i2    = i(kswitch+1)
>>>>>>   i3    = i1+1
>>>>>>   print i1, i2, i3
>>>>>>   rireturn
>>>>>>
>>>>>>   endin
>>>>>> </CsInstruments>
>>>>>> <CsScore>
>>>>>> i1 0 5
>>>>>> e
>>>>>> </CsScore>
>>>>>> </CsoundSynthesizer>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>>
>>>>>> Oeyvind Brandtsegg
>>>>>> Professor of Music Technology
>>>>>> NTNU
>>>>>> 7491 Trondheim
>>>>>> Norway
>>>>>> Cell: +47 92 203 205
>>>>>>
>>>>>> http://flyndresang.no/
>>>>>> http://www.partikkelaudio.com/
>>>>>> http://soundcloud.com/brandtsegg
>>>>>> http://soundcloud.com/t-emp
>>>>>>
>>>>>> ------------------------------------------------------------------------------
>>>>>> _______________________________________________
>>>>>> Csound-devel mailing list
>>>>>> Csound-devel@lists.sourceforge.net
>>>>>> https://lists.sourceforge.net/lists/listinfo/csound-devel
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
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>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> Oeyvind Brandtsegg
>>>> Professor of Music Technology
>>>> NTNU
>>>> 7491 Trondheim
>>>> Norway
>>>> Cell: +47 92 203 205
>>>>
>>>> http://flyndresang.no/
>>>> http://www.partikkelaudio.com/
>>>> http://soundcloud.com/brandtsegg
>>>> http://soundcloud.com/t-emp
>>>>
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>>>> https://lists.sourceforge.net/lists/listinfo/csound-devel
>>>
>>>
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