Re: Where does \environment look?

Hi Hans,

On Mon, Mar 23, 2026 at 18:01 (+0100), Hans Hagen wrote:

> On 3/23/2026 3:52 PM, Jim Diamond wrote:

>> unfortunate that the only example on the \usepath page shows it being used
>> inside a \startMPinclusions, which might lead the unwary to assume it is
>> only for MP files.

> thit would be \useMPpath (a bit of deduction here)

It helps when you know the system inside-out.  Or so I imagine. ;-)
 
>> It is also too bad that it doesn't document what the default path is.
>> Which might be interesting, since (as shown) \environment acts differently
>> than \input.

> for an old-timer like you,

Sorry I didn't reply earlier, I was chasing some kids off my lawn.

> it also takes some adaptation to use \input {foo} instead of the
> non-character terminated \input foo i guess,

Yes, old habits are still dying hard.

Having said that, as you might suspect, some of my questions are from
looking at ANSS-CE, and in ANSS JAL delimited the file args for
\environment with (just) whitespace.  Ditto in his example '\input's.

> in mp there's also this input that takes a non-string which makes input a
> bit of an outlier in both machineries


>> Indeed.  How about ./../../../xyzzy.tex ?  (No need to answer, I can test
>> if I feel so inclined.)

>> But it might be interesting to know what the default is.  I hunted around
>> in some Lua files for a while, but my lua-fu is too weak to track the
>> default down.

> so here is some of the magick:

Thanks.  I like magic(k)!

> \starttext

> \enabletrackers[resolvers.locating]

> \input{tufte}

> \enabletrackers[resolvers.*]

> \environment does-not-exist

> \disabletrackers[resolvers.locating]

> \stoptext

> See log file. All the magic is in the data-ini, data-res, data-pre etc
> files. Don't loose sleep over it.

In fact, I might even sleep better, knowing one more thing about how to
track down things all by myself.

Also thanks for your other two messages on this topic.

                                Jim
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