Aaron Hill writes:
> On 2020-04-26 10:01 am, David Kastrup wrote:
>> Predicates used in argument parsing have to be "primary" in that they
>> have to deliver a result for anything thrown at them.
>> positive? only delivers results for numbers but throws an error for
>> anything else.
>
> Would th
On 2020-04-26 10:01 am, David Kastrup wrote:
Predicates used in argument parsing have to be "primary" in that they
have to deliver a result for anything thrown at them.
positive? only delivers results for numbers but throws an error for
anything else.
Would there be harm in redefining an R5RS
> On 26 Apr, 2020, at 1:01 PM, David Kastrup wrote:
>
> Predicates used in argument parsing have to be "primary" in that they
> have to deliver a result for anything thrown at them.
>
Can that be noted in the docs
(http://lilypond.org/doc/v2.19/Documentation/extending/scheme-function-definitio
"Fr. Samuel Springuel" writes:
>> On 26 Apr, 2020, at 4:30 AM, Thomas Morley wrote:
>>
>> I've no clue why positive? fails here.
>> Though, for integers >= 0 we have the index? predicate, which works in
>> your function.
>
> Well, I’m glad I’m not the only one baffled. And the index? predicate
> On 26 Apr, 2020, at 4:30 AM, Thomas Morley wrote:
>
> I've no clue why positive? fails here.
> Though, for integers >= 0 we have the index? predicate, which works in
> your function.
Well, I’m glad I’m not the only one baffled. And the index? predicate does
seem to work.
> On 26 Apr, 2020
Am 26.04.20 um 10:30 schrieb Thomas Morley:
However, when I swap integer? for positive? (to reflect the fact that only a
positive integer should be acceptable) it breaks, telling me the argument at
position 1 is of the wrong type (it’s music, not a positive number). Why
doesn’t scheme’s han
Am So., 26. Apr. 2020 um 02:35 Uhr schrieb Fr. Samuel Springuel
:
>
> I’m trying to write a music function in scheme in which the first argument is
> optional and have run into something that confuses me:
>
> The following works:
>
> \version "2.19.84"
>
> recite = #(define-music-function (times n
I’m trying to write a music function in scheme in which the first argument is
optional and have run into something that confuses me:
The following works:
\version "2.19.84"
recite = #(define-music-function (times note) ((integer? 1) ly:music?)
#{ \repeat unfold #times { #note
