Re: [frogs] 836: output-suffix as a (Score) context property

[Graham Percival <graham@xxxxxxxxxxxxxxxxx>]

Thanks, updated issue 836.

Cheers,
- Graham


On Mon, Mar 15, 2010 at 12:35 AM, Ian Hulin <ian@xxxxxxxxxxxx> wrote:
> On 14/03/10 17:19, Graham Percival wrote:
>>
>> http://code.google.com/p/lilypond/issues/detail?id=836
>>
>> What's the latest on this issue?  The last news I see is from 16 Nov
>> 2009, saying """I wasn't able to implement output-prefix and filename
>> as "contexts" to \book easily, so we now have
>> \bookOutputSuffix "newsuffix" and \bookOutputName "filename" which are
>> scoped within each \book block.
>>
>
> I went the music-function route because there was a feeling that contexts
> were properties which were reserved for the phase of music translation and
> producing grobs.  When I started working on this I reckoned contexts were
> Lilypond-speak for sets of attributes within the compiler, so it seemed
> reasonable to attach some new attributes to the the compilation unit (i.e an
> implicit or explicit \book block) to achieve this.  However, although the
> \book block is treated as OO object in the C++ code, I got very confused
> trying to work out what was at top-level, what was the object hierarchy and
> what was the context hierarchy.
>
> So I worked out a way of doing it with music functions and parser variables
> instead, which met the demand from users for begin able to rename to backend
> output files simply from within code.
>
> If people really want this functionality via a context-like interface I'll
> have another crack at it, but I don't really feel I understand the way Lily
> fits together well enough yet.
>
>> There is also a regression test to cover output files having extended
>> Latin accented
>> characters (like č,š,ů,ř,ő,ž,ij,ě)."""
>>
>> There's also a "patch" label.
>>
>> - is the issue finished now?
>> - is there any patch pending?
>>
>
> I got lost in how the regression test files get generated. I thought it
> would be enough to have a file called something like
> "output-filename-Zčeskýchluhůahájů.ly" - here's the file contents
> \version "2.13.5"
>
> \header {
>  texidoc = "Using extended Latin characters like š and č
>  in output file-names should not cause any problems with
>  backend processors."
>
>  dedication = "Lilypond Regression Test"
>  title = "Má Vlast"
>  subtitle = "Symphonic Tone Poem Cycle"
>  instrument = "Orchestra"
>  composer = "Bedřich Šmetana"
>  opus = "Opus 64"
> }
> % Set up variables
> globalIV = {\key f \major \time 4/4}
> violinmIV = \relative c'' { \globalIV  d1 | }
>
> %Now produce back-end files with names using extended accents
>
> \book {
>  \header {
>   subsubtitle = "IV. Z českých luhů a hájů"
>  }
>  \score {
>    \new Staff  \violinmIV
>    \layout { }
>    \midi { }
>  }
> }
>
> But I couldn't work out how to stitch this in to the reg test suite using
> this name, since the make check seemed to insist on generating its own names
> on the fly, which made it dfficult writing a test testing to see whether
> files with a specific name were generated.
>
> The CG Chap 8 has no content on regression tests so I'm stuck.
>
> Cheers,
>
> Ian
>

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