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For some reason that i don't fully understand, evaluating a function
in the racket/base namespace first thing after loading errortrace
breaks the help macro (!). This patches provides a workaround by
actually invoking help first thing when Geiser starts, with alibi that
it serves to preload the help index (in a separate thread).
While i was at it, i improved the message printed in the minibuffer
when no help is found.
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So, the problem was that our regexp for a Racket prompt didn't take
into account that filenames could contain white spaces: "@[^ ]*> ". A
simple solution was accepting them: "@[^>]+> " won't work because '>'
is also a valid character in filenames, so we went for "@.*> ".
The drawback is that finding the beginning of the prompt (e.g. in C-a)
fails when you're writing things like:
racket@foo bar.rkt> (> 2 3)
because here comint believes that the prompt is "racket@foo bar.rkt> (> "
And that could have side-effects elsewhere. So what i've done is
simply changing the way white-space is (not) printed in the prompt,
substituting it by underscores. That way, whe can go back to the
initial regexp, comint doesn't get confused, and users can easily
infer that "@foo_bar.rkt>" is actually referring to their
"foo bar.rkt" file.
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Since spaces are allowed inside filenames after all.
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By default, keywords are now not fontified in Scheme buffers unless
they have the correct (lower) case. This behaviour can be altered by
new, per-implementation customization variables.
Thanks to Diogo F. S. Ramos for pointing this out.
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Thanks to Diogo F. S. Ramos.
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Hat tip Diogo F. S. Ramos.
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Splitting better the specially indented forms between our two
implementations, so that users of a single one don't get weird
indentations for froms without a special meaning in their scheme.
Ideally, we should make these indentation rules buffer-local, so that
when a user is in a, say, Guile buffer, module+ has no special
indentation (as is the case now if that user also has activated
support for Racket).
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Useless there right now, but Emacs package engine is going to use
them.
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When no cache dir is set in the emacs customization, we ask Racket for
the one that it's using by default.
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Brought to you by a comma-command in the REPL and the REPL startup
function.
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We had only for two of them, and one was wrong!
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That is, `else' gets keyword fontlocking. Undecided as to whether
extend this highlighting to all schemes...
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This bugs was exposed by using rackunit, where all the output of, say,
check-eq? was lost for good (it was being sent to the stderr black
hole).
Hat tip Grant Retkke.
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At some point, we should make indentation rules buffer-local.
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... using the new non-interning reader. Plus scanning for case-lambda
and syntax-rules. `geiser-syntax--scan-locals' is in danger of
refactoring, specially if we add support for let-values.
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Those seem keywordish enough to deserve fontification.
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These ones seem safe: the resulting symbol is not compared for
equality anywhere.
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This reverts commit 801422d1558f488059ede4f9abab5163ca610900.
We cannot blindly substitute make-symbol for intern in the scheme
reader, because we rely on symbol equality elsewhere, often. The fix
will have to be much more careful.
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We were calling `intern' instead of `make-symbol', polluting emacs'
obarray.
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When the symbol is imported and re-exported by a second module, we
display its definition name and original module, besides the name of
the module re-exporting it.
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We have a new "manual lookup" command, and Racket now displays a doc
browser buffer for help with a button activating it. In the process,
we've cleaned-up a little mess in geiser-eval.el and geiser-doc.el,
and refactored the affected Racket modules.
Next in line is providing manual lookup for Guile.
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Spinning up from correct fontification of [else in this brave Racket
world.
I'm keeping the list of extra keywords lean and mean, but making it
customizable in both Racket and Guile.
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Inferior schemes weren't really a good idea, were they? With remote
connections one can launch an external scheme to debug Geiser anyway.
And everything is (ahem, will be) simpler when we add new
implementations.
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Separate connections for the REPL and Geiser commands was kind of
neat, but it had the problem of synchronising the current namespace
for both connections. A quick fix would have been to ask the scheme
for the current namespace for every Geiser command in the REPL, but
that, besides clunky, would add potentially prohibitive overhead for
(real) remote connections.
As it happens, using a single connection turned out to be not that
difficult and relatively clean code-wise. We could even turn back to
not use inferior schemes, and the net result of this refactoring would
be the replacement of comint-redirect (which wasn't able to match the
whole EOT token if it didn't arrive all at once) by transaction queues
(which also makes geiser-connection's implementation cleaner).
But using an inferior scheme has a dog-food value, and allows external
processes to connect to the scheme being used by Geiser without
further ado, which could be useful for debugging (although this is a
lame excuse: nothing prevents you from starting a REPL server from
emacs if you want). We'll see.
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Or the importance of EOL. Switching to a transaction queue for
communication with the Scheme process means that i had to care about
sending eols in the queries... Guile was waiting for ever reading a
metacommand taking a variable number of arguments. Argh: this has
taken me a few hours -- i'm getting old.
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- Much more robust: dynamic-require might not have been defined in the
REPL's namespace.
- Fixes #30347 as a side-effect: now all Geiser functions work with
typed scheme too.
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