Re: Where can I find reasonable definitions of ''Identity predicates'(?) that we use in our own .scm files?

[Ian Hulin]

James,
There are also a load more LilyPond specific predicates defined in
Lily code.  These are listed in scm/lily.scm.

Cheers,
Ian

On 17/12/11 23:21, James wrote:
> Hello,
> 
> On 17 December 2011 22:18, James <address@hidden> wrote:
>> Hello,
>> 
>> As part of a tracker issue and for my own education I'm trying
>> to understand the 'types' (if that is the correct term - from
>> Wikipedia of Scheme I'm wondering of they are 'Identity
>> predicates') of the variables (again if that is the correct term)
>> in the listings in some of the scm files.
>> 
>> For example in the printed IR I might see:
>> 
>> --snip-- figuredBassAlterationDirection (direction) Where to put
>> alterations relative to the main figure.
>> 
>> figuredBassFormatter (procedure) A routine generating a markup
>> for a bass figure.
>> 
>> ignoreFiguredBassRest (boolean) Don�t swallow rest events.
>> 
>> implicitBassFigures (list) A list of bass figures that are not
>> printed as numbers, but only as --snip--
>> 
>> What I am interested in are the different 'types' ((list),
>> (boolean), (procedure), (direction) and so on) and what they mean
>> in a scm context so I can assign correct text strings for
>> documentation. So if I had a Property of ABC and I wanted to use
>> a True or False or maybe a single integer and so on, which would
>> be the correct 'type' to list.
>> 
>> I'm not asking for specific answers in as much as pointer to a
>> scm website perhaps or some online doc that I could look at and
>> glean.
>> 
>> I'm trying to create a new scm/paper-properties.scm type-file to
>> help move forward
>> 'http://code.google.com/p/lilypond/issues/detail?id=1392', I am
>> well out of my comfort/knowledge zone I realise, but am hoping
>> to get an idea of how the whole autogenerated doc process for
>> things like Appendixes and the IR work by 'having a go'.
>> 
>> -- --
>> 
>> James
> 
> http://lilypond.org/doc/v2.14/Documentation/notation/predefined-type-predicates
>
>  Seems to list them...
> 
> doh!
> 
> 
>