This commit introduces a new syntax for index operators.
Six core parenthesis operator are added:
.(), .[], .{}, .{,}, .{,,}, .{,..,}.
The .{,}/.{,,}/.{,,,} operators are defined for compatibility with the Bigarray syntax extension.
Each core index operator is available in a access/assignement versions. For instance, .() is declined in
* .() : index operator
* .()<- : indexed assignment operator
The general syntax for these index operators as implemented in the parser is index_operator::= index_operator_core [<-]
From: octachron <octa@polychoron.fr>
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15660 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
16bc43219c