[m-rev.] Improvements to pprint.m

[Fergus Henderson]

On 26-Apr-2001, Ralph Becket <rbeck at microsoft.com> wrote:
> Estimated hours taken: 2
> 
> Improve the pretty printer's output for various types.  This makes
> the debugger's pretty format much more useful.
> 
> library/pprint.m:
> 	Extended the pretty printer's to_doc/2 function to format
> 	lists, tuples and maps more readably.  Lists now appear
> 	as [a, b, c, ...], tuples as {a, b, c}, and maps as
> 	map(key1 -> value1, key2 -> value2, ...).  Ellipsis
> 	represents the remainder of a list of map where the depth
> 	limit has been reached.

That looks fine, for the main branch.

-- 
Fergus Henderson <fjh at cs.mu.oz.au>  |  "I have always known that the pursuit
                                    |  of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh>  |     -- the last words of T. S. Garp.
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