Re: Regression in parser

[Han-Wen Nienhuys]

Erik Sandberg schreef:
> On Saturday 23 September 2006 17:49, Nicolas Sceaux wrote:
> > Hi,
> >
> > Using LilyPond from CVS, the following snippet causes a syntax error,
> > which 2.9.18 did not:
> >
> > /******************************
> > testFunction =
> > #(define-music-function (parser location) ()
> >   ;; test-data.ly contains music variable definitions
> >   (ly:parser-parse-string parser "\\include \"test-data.ly\"")
> >   (make-music 'SequentialMusic 'void #t))
>
> Hi,
>
> You should use ly:clone-parser to avoid this problem:
>
> #(define-music-function (parser location) ()
>    (ly:parser-parse-string (ly:clone-parser parser) "\\include 
> \"test-data.ly\"")
>    (make-music 'SequentialMusic 'void #t))
>
> The same problem exists in previous versions, it happens whenever the lexer 
> needs to read a lookahead token before applying a function:

I'm not sure. Since the arity of the function is known beforehand, the 
parser doesn't need any lookahead before applying the function. How does 
this work in the new EXPECT_XXX setup?

--

Han-Wen Nienhuys - address@hidden - http://www.xs4all.nl/~hanwen

LilyPond Software Design
 -- Code for Music Notation
http://www.lilypond-design.com