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Il y a un comportement du parser que je trouve plutot bizarre :

(<pat1>, <pat2> as a, <pat3>)

est lu comme :

(((<pat1>, <pat2>) as a), <pat3>).

Je m'attendrais plutot a  :

(<pat1>,(<pat2> as a),<pat3>).

   Yann Coscoy


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The parser has a stange behaviour :

(<pat1>, <pat2> as a, <pat3>)

is understood as :

(((<pat1>, <pat2>) as a), <pat3>).

I was expecting :

(<pat1>,(<pat2> as a),<pat3>).

   Yann Coscoy