Hi everybody!
I try to test my cairo code using the input/regression/*.ly files. Of course I need a reference, but to my surprise not all of those regression test files compile fine with our traditional svg backend. I did not investigate the problems and I will not investigate them in the near future. But
here#s one hint for the volta-spec-once.ly problem: Roboto-Regular is (on my current system) a font without a glyph table. That meant that I had to write special code for my cairo backend, and we know that handling of this special case is far from optimal in the postscript backend (eg
-dgs-load-fonts is unusable). ft2 gives virtual uni[0-9a-f]* glyph names to pass the unicode value, and we would need to translate those to unicode and use the ps show operator for a better solution in the postscript backend.
============================
Processing `../repeat-volta.ly'
Parsing...
Interpreting music...[8]
Preprocessing graphical objects...
Finding the ideal number of pages...
Fitting music on 1 page...
Drawing systems...
fatal error: cannot find SVG font #f
============================
Processing `../volta-spec-volta-in-unfold.ly'
Parsing...
Interpreting music...
Preprocessing graphical objects...
Finding the ideal number of pages...
Fitting music on 1 page...
Drawing systems...
fatal error: cannot find SVG font #f
============================
Processing `../volta-spec-once.ly'
Parsing...
Interpreting music...
Preprocessing graphical objects...
Interpreting music...[8]
Preprocessing graphical objects...
Finding the ideal number of pages...
Fitting music on 1 page...
Drawing systems...
warning: cannot find SVG font #f
warning: cannot find SVG font #f
warning: cannot find SVG font #f
warning: cannot find SVG font #f
warning: cannot find SVG font #f
warning: cannot find SVG font #f
warning: cannot find SVG font #f
warning: cannot find SVG font #f
warning: cannot find SVG font #f
warning: cannot find SVG font #f
warning: cannot find SVG font #f
warning: cannot find SVG font #f
warning: cannot find SVG font #f
Backtrace:
In
/home/knut/sources/lilybuilt/guile_1.8/share/lilypond/2.23.3/scm/lily/lily.scm:
972: 8 [catch ly-file-failed #<procedure #f ()> #<procedure #f (x .
args)>]
In unknown file:
?: 9* [#<procedure #f ()>]
In
/home/knut/sources/lilybuilt/guile_1.8/share/lilypond/2.23.3/scm/lily/lily.scm:
973: 10* [ly:parse-file "../volta-spec-once.ly"]
In /home/knut/sources/lilybuilt/guile_1.8/share/lilypond/2.23.3/ly/init.ly:
64: 11* (let* ((book-handler #)) (cond (# #) (# #)))
67: 12 (cond (# #) (# #))
In
/home/knut/sources/lilybuilt/guile_1.8/share/lilypond/2.23.3/scm/lily/lily-library.scm:
...
249: 13 [ly:book-process #<Book> #< Output_def> #< Output_def>
"volta-spec-once"]
In unknown file:
?: 14* [output-framework "volta-spec-once" #<Paper_book> ...]
In
/home/knut/sources/lilybuilt/guile_1.8/share/lilypond/2.23.3/scm/lily/framework-svg.scm:
283: 15* (let* (# # # # ...) (if # #) (for-each # page-stencils))
291: 16 [for-each #<procedure #f (page)> (#<Stencil>)]
In unknown file:
?: 17* [#<procedure #f (page)> #<Stencil>]
In
/home/knut/sources/lilybuilt/guile_1.8/share/lilypond/2.23.3/scm/lily/framework-svg.scm:
297: 18* [dump-page #< Output_def> "volta-spec-once.svg" #<Stencil> 1 1]
118: 19 (let* (# # # # ...) (if # #) (dump #) ...)
145: 20* [ly:outputter-dump-stencil #<Paper_outputter> #<Stencil>]
In unknown file:
?: 21* [embedded-glyph-string #<Pango_font (#f . 1.0)> "Roboto-Regular"
...]
?: 22* (letrec ((path "")) (if (= 1 #) (set! path #) ...) ...)
In
/home/knut/sources/lilybuilt/guile_1.8/share/lilypond/2.23.3/scm/lily/output-svg.scm:
423: 23* (if (= 1 #) (set! path #) (begin #))
425: 24 (begin (set! path (string-append (eo # #t) (string-join # "
") (ec #))))
426: 25 (set! path (string-append (eo # #t) (string-join # "
") (ec #)))
427: 26* [string-append "<g>
" ...
428: 27* [string-join ({#<unspecified>} {#<unspecified>} {#<unspecified>} ...)
"
"]
/home/knut/sources/lilybuilt/guile_1.8/share/lilypond/2.23.3/scm/lily/output-svg.scm:428:30:
In procedure string-join in expression (string-join (map # glyphs) "
"):
/home/knut/sources/lilybuilt/guile_1.8/share/lilypond/2.23.3/scm/lily/output-svg.scm:428:30:
Wrong type (expecting string): #<unspecified>
============================
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