please excuse me but I m really new and it takes me a long time to understand many things

:) fragments which don't reproduce the error message, don't reproduce the error message -- you can't learn about the error message from those :)

diagnostics/perldiag/splain 

 perl -we" my $foo = 1; my $foo = 2; "
"my" variable $foo masks earlier declaration in same scope at -e line 
+1.

$ perl -Mdiagnostics -we" my $foo = 1; my $foo = 2; "
"my" variable $foo masks earlier declaration in same scope at -e line 
+1 (#1)
    (W misc) A "my", "our" or "state" variable has been redeclared in 
+the
    current scope or statement, effectively eliminating all access to 
+the
    previous instance.  This is almost always a typographical error.  
+Note
    that the earlier variable will still exist until the end of the sc
+ope
    or until all closure referents to it are destroyed.

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In reply to Re^3: how to output the final Tree into a file? by Anonymous Monk
in thread how to output the final Tree into a file? by dimitris852

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