Re: python-ly, ly.indent

[Urs Liska]

Hi Mason,

great that it really worked how I thought it should :-)

May I ask what you are doing this for?

Best
Urs

17. August 2019 19:25, address@hidden schrieb:

> Thanks Urs,
> 
> Seeing how the Document and Cursor classes are used there was enough to
> put me on the right track. I've achieved what I was going for with this:
> 
> %%% begin test.py %%%
> import ly.document
> import ly.indent
> 
> music = '''\\new Staff <<
> \\relative c' { c4 c c c } |
> 
>> '''
> 
> d = ly.document.Document(music)
> c = ly.document.Cursor(d)
> i = ly.indent.Indenter()
> 
> c.select_all()
> i.indent(c)
> 
> print (d.plaintext())
> %%% end test.py %%%
> 
> $ python3 test.py
> \new Staff <<
> \relative c' { c4 c c c } |
>> 
> 
> Best,
> 
> Mason
> 
> On 08/17, Urs Liska wrote:
> 
>> Just shortly: does
>> 
>> https://github.com/frescobaldi/python-ly/blob/master/ly/cli/main.py
>> 
>> and
>> 
>> https://github.com/frescobaldi/python-ly/blob/master/ly/cli/command.py#L116
>> 
>> help you further? I thought it would be best to look how the ly command line 
>> program does it.
>> 
>> Urs
>> 
>> Am 17. August 2019 03:00:47 MESZ schrieb address@hidden:
>> Hi all,
>> 
>> The command line tools provided by python-ly are very
>> convenient and easy to use, but I'm finding it a little harder to wrap
>> my head around the Python module.
>> 
>> For example, it is easy to automatically indent a file with
>> 
>> $ ly "indent" file.ly
>> 
>> or to indent the output of another command such as
>> 
>> $ cat file.ly | ly "indent"
>> 
>> I'd like to be able to do something similar in Python, using ly.indent
>> to indent files or (preferably) strings. It seems that ly.indent might
>> be what I want, but I'm having trouble figuring out how it works. The
>> Indenter() class, with an indent() function, is defined here,[1] but
>> I'm
>> don't understand what a cursor object is or how to create and pass one.
>> I next tried looking through Frescobaldi's code for example usage and
>> found this,[2] but I think I would need to learn more about how
>> Frescobaldi works in order to follow what's happening, which is deeper
>> than I want to go to indent a string of Lilypond code.
>> 
>> Is there a simple way to use ly.indent similarly to `ly "indent"`, or
>> would I be better off invoking `ly "indent"` externally with
>> os.system()?
>> 
>> Thanks,
>> 
>> Mason
>> 
>> [1]
>> https://github.com/frescobaldi/python-ly/blob/0d91ca2450ba01a8158f53ba05202af3e13bf78d/ly/indent.py
>> 
>> [2]
>> https://github.com/frescobaldi/frescobaldi/blob/09cae764126b505dedf0182beccd78d7934b2de4/frescobaldi
>> app/indent.py
>> 
>> --
>> Diese Nachricht wurde von meinem Android-Gerät mit K-9 Mail gesendet.
>> 
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