Answering myself: pth2 is not a valid variable name. Digits are not allowed.

On 14 Mar 2020, at 15:45, Gerben Wierda wrote:

I have this vardef:

vardef Foo(expr w, h) = save pth; path pth; %save pth2; path pth2; save pic; picture pic; pth = fullsquare xysized (w, h); %pth2 = fullsquare xysized (h/4, h/8) pic := image ( draw pth; %draw pth2 shifted (-w/2, -h/4); % all kind of stuff here ); setbounds pic to pth; pic enddef ;

As soon as I uncomment the bold line (first comment) a mtxrun fails. Whatever I try, a single save statement, etc., I fail in getting a second local variable. The METAPOST manual is no help.

The error shown is:

metapost log > ! Extra tokens will be flushed. metapost log > <to be read again> metapost log > 2 metapost log > Foo->...h;path.pth;save.pth2 metapost log > ;path.pth2;save.pic;pictur... metapost log > <*> ... ; s := Foo(8cm, 2cm) metapost log > ; draw s; drawdot center l... metapost log >

Why?

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