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On the racket side, we use a custom print handler to print
images (convertible? values; see file/convertible) in a special format:
#<Image: filename>
On the geiser side, we add a comint post-output hook to search for
that filename and replace it with inline images.
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This one probably requires Racket 5.3, and incorporates some
parameterization to the module compilation and evaluation code in
Geiser's version of enter.rkt. I'm mostly mirroring what the latter
does, and i'm probably not completely understanding all corner cases,
so the two users of Geiser should keep an eye open for possible
breakage introduced by this patch.
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Just adjusting a regexp.
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In my debian machine, the info nodes for guile live in the "guile-2.0"
node, rather than plain "guile". A new customizable variable,
geiser-guile-manual-lookup-nodes, lets now specify additional names,
and we only add indexes to the info-lookup mode definition when the
node actually exists.
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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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It's not perfect and undocumented, but useful nonetheless.
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We were not re-activating it on new input, cause we weren't detecting
the prompt unless preceeded by other output (and, hence, a newline).
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Hat tip Marijn.
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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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We were not checking that the region sent to the scheme process was
balanced, resulting in said process waiting for ever on `read' (or its
moral equivalent in our current implementation). We now just refuse
to evaluate an improper region in the first place.
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At some point, we should make indentation rules buffer-local.
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Seems like the add-on package filladapt.el is broken in that its
version of fill-adapt uses a non-optional first argument. Aquamacs
users were filling the pain. Fixed by passing nil in our call to
fill-paragraph. Hat tip Jonathan Oddie.
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We were just ignoring it so far!
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The nice go-back-to-previous-scheme-buffer behaviour of C-c C-z wasn't
working when the jump from a scheme file to the REPL was initiated via
run-geiser. Thanks, Marijn.
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Actually, i'm not even sure the calls to format i was using were
correct at all!
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Namely, geiser-font-lock-repl-prompt and geiser-font-lock-repl-input.
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As Stanisław Halik reported, autodoc was receiving a mlist (instead of
a list) as its argument when invoked in an R5RS context. Turns out we
were evaluating geiser-eval's arguments in the wrong context (the
procedure being applied and the arglist belong to the same namespace).
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In this little notebook i'm using, racket takes its time to start. In
fact, it can take more the previously slotted 10 seconds. Hence the
new geiser-repl-startup-time variable.
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Thanks, Leo.
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If we didn't find a define-module form after the cursor, or an
enclosing R6RS library form, we search forward for a module
definition. That way, things like C-c C-a work also from the top of
the file.
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Using called-interactively-p instead of interactive-p, if you have to
know. The latter is deprecated as of Emacs 23.2, which the lowest
version supported by Geiser.
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Autodoc was firing while the REPL was waiting for input of a (read)
call, causing all kinds of misbehaviour. We now inhibit autodoc on
sending a form for evaluation and re-inhibit it once a prompt is read
back again.
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In this episode, we learn how to use @ escapes in texinfo urls.
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Thanks to Caleb Reach.
We were using current-input-port, which is not the right port in
graphical environments.
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Thanks Jon!
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The new custom variable, geiser-guile-load-init-file-p, will be gone
once Guile adquires the ability to specify the path to its init file.
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We were not checking the implementation associated to a REPL buffer
when reusing it, with much confusion ensued.
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Nothing interesting, really.
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And we take the chance to lightly document the existence of this
new command in the user manual.
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Now that the previous patch seems to work (thanks David Bremner!).
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The catch here is that one cannot use #%variable-reference inside an
R5RS module, and, as a consequence, namespace->module-path-name was
failing badly. The solution is to take note of the module name being
entered before hand, and use that name in case of error (we could
actually use that name always, but then cheaters using Racket's enter!
would see an inconsistent name (which probably they deserve)).
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This is a 2.0 fluid that governs how warning messages are displayed.
In Geiser, we need the prefix set to an empty string so that file
paths are clickable (and the display in a separate emacs buffer is nicer).
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