Richard Shann <rich...@rshann.plus.com> writes:
> On Sun, 2017-06-04 at 17:48 +0200, Simon Albrecht wrote:
>> On 04.06.2017 15:50, Knute Snortum wrote:
>> > I post to Mutopia so I can't have warnings. Any thoughts?
>>
>> Sometimes one has to accept warnings, so in future situations
>> ly:expect-warning might be your friend (unless it is banned from
>> Mutopia? I’d be surprised). It only needs the beginning of the warning
>> string, like
>> #(ly:expect-warning "cannot have")
>
> Simon - I was intrigued by this comment of yours and wondered if you
> could say where this bit of Scheme needs to be placed?.
> I tried to suppress clashing note column warnings thus:
>
> 8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><
> \version "2.18.0"
> #(ly:expect-warning (_ "ignoring too many clashing note columns"))
> MvmntIVoiceI = {
> #(ly:expect-warning (_ "ignoring too many clashing note columns"))
> c''4 c'' c''
> }
> MvmntIVoiceII = {
> #(ly:expect-warning (_ "ignoring too many clashing note columns"))
> c''4 c'' c''
> }
> \score {
> \new Staff = "Part 1" <<
> \new Voice = "MvmntIVoiceI" \MvmntIVoiceI
>
> \new Voice = "MvmntIVoiceII"
> \MvmntIVoiceII
> >>
> }
> 8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><
>
> I found by trial-and-error that if I remove any of the three occurrences
> of the ly:expect-warning the warning returns.
>
> Where should it be called?
At the top, once for every expected warning. It doesn't make sense
placing it in music expressions: its effect will be immediate anyway and
it does not become part of the music.
But you need to expect the right order and number of warnings.
--
David Kastrup
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