Dear Anvita,
This is because a is a local variable, and Read() only has access to global
variables.
If you need such a construct, try
F := function(a)
__A_GLOBAL_NAME_THAT_IS_NOT_USED := a;
Read(InputTextString("b:=__A_GLOBAL_NAME_THAT_IS_NOT_USED;"));
return b;
end;
note however that b will also be a global variable.
Best, Laurent
--
Laurent Bartholdi \ laurent.bartholdi<at>gmail<dot>com
EPFL SB SMA IMB MAD \ Téléphone: +41 21-6935458
Station 8 \ Secrétaire: +41 21-6935471
CH-1015 Lausanne, Switzerland \ Fax: +41 21-6930339
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