Erlang shell print depth and print length: how to change?
Tue Feb 6 09:37:54 CET 2001
On Mon, 5 Feb 2001, Arthur Reyes wrote:
> Dear Erlang Friend:
> I need to inspect Erlang abstract syntax trees (ASTs) produced by
> epp:parse_file/3 and similar functions.
> When given the filename and path of a large Erlang source code file,
> epp:parse_file/3 returns a long list of deeply nested tuples.
> The returned list is often so long the Erlang shell elides the end of
> it with ellipses (...). The tuples are often so deeply nested the
> Erlang shell elides the deeper components with ellipses as well.
I would not go as far as to suggest that you try to modify the behaviour
of the shell itself, but this would show you the whole structure:
io:fwrite("~p", [epp:parse_file("foo.erl", , )])
If you want to analyse the syntax tree in more detail, I recommend my
"syntax tools" package, which works as an abstract layer hiding the actual
representation details. It also comes with a more advanced pretty-printer
than the standard library 'erl_pp'.
Richard Carlsson () (This space intentionally left blank.)
E-mail: WWW: http://www.csd.uu.se/~richardc/
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