On Dec 14, 2012 6:39 PM, "Olivier Biot" <olivier.b...@gmail.com> wrote:
> Hi all,
>
> Is there a way to write text to the console in LilyPond?
>
> I'd like to display the file currently processed to keep track of
problems on a 60 part etude
On Sat, Dec 15, 2012 at 7:40 AM, Mark Witmer <m...@markwitmer.com> wrote:
> You can do that with Scheme. I don't know if there's a LilyPond command
> for it.
>
> #(display <your object here>) will display what you give it, either a
> plain string or an expression. The results aren't always totally useful
> (give it a \paper{} block, for example, and it will just say #<Output_def>)
> but that's a start. #(newline) will move to the next line if you want
> cleaner output.
>
> There's also a procedure called 'format' that is more like printf.
>
>
> http://www.gnu.org/software/guile/docs/docs-1.8/guile-ref/Formatted-Output.html#index-format-3918
>
> -Mark
>
Hi Mark,
Thank you for this pointer!
I tried using the Guile "display" method as follows at the top of my
LilyPond input file:
pieceStr = "N° 1."
#(display (string-append "[i] Converting Kummer Op 125 " pieceStr))
In this case, the output shows up at the end of processing the file:
%%% begin log
Starting lilypond.exe 2.16.1 [01.ly]...
Processing `C:/Users/Olivier/Dropbox/Music/Kummer op.
125/LilyPond/attempt2/parts/01.ly'
Parsing...
Interpreting music...[8][16]
Preprocessing graphical objects...
Finding the ideal number of pages...
Fitting music on 1 page...
Drawing systems...
Layout output to `01.ps'...
Converting to `./01.pdf'...
[i] Converting Kummer Op 125 N° 1.
Success: compilation successfully completed
Completed successfully in 2.2".
%%% end log
Whereas if I use "'ly:warning" instead of "display" as follows:
#(ly:debug (string-append "[i] Converting Kummer Op 125 " pieceStr))
The debug statement appears before parsing, which is more useful to me:
%%% begin log
Starting lilypond.exe 2.16.1 [01.ly]...
Processing `C:/Users/Olivier/Dropbox/Music/Kummer op.
125/LilyPond/attempt2/parts/01.ly'
Parsing...
warning: [!] Converting Kummer Op 125 N° 1.
Interpreting music...[8][16]
Preprocessing graphical objects...
Finding the ideal number of pages...
Fitting music on 1 page...
Drawing systems...
Layout output to `01.ps'...
Converting to `./01.pdf'...
Success: compilation successfully completed
Completed successfully in 2.1".
%%% end log
There's apparently also a "ly:debug" method but I can't get it to diusplay
anything, probably there's a way to set the debug loglevel in Guile but I
didn't manage to find yet how to do so.
Best regards,
Olivier
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