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With a hat tip to Mikhail Kryshen, who was wondering in guile-user why
oh why, and rightly so.
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For some reason, one of our users is experiencing point jumps when
calling `geiser-set-scheme'. A save-excursion is all that's needed,
even though it *shouldn't* be needed in the first place.
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geiser-mode-eval-to-buffer-transformer will take 2 argments:
errstring and result
when eval-to-buffer, the result will be transformed by this procedure
e.g.
(setq geiser-mode-eval-to-buffer-transformer
(lambda (estring x)
(let ((l (length x))
(p (seq-position x ?\n)))
(if (and p (< (+ 1 p) l))
(format "\n#| %s%s\n |#" estring x)
(format ";;=> %s%s" estring x)))))
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After evaling the last expression, if not inserting its value into
buffer, leave (point) at its original position.
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Scan for beginning and end of a sexp, instead of using (point) as the
end.
Previously, if (point) was after a comment character, the REPL would
freeze.
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And, on reflection, it's better we do the same thing with the ERROR
insertion...
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This one should fix github's issue #132. There's still the glitch that
scheme strings are fontified without taking into account extra keywords.
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Addresses github's #158, and its implementation is really easy (kudos to
fice-t, also for telling me about bound-and-true-p).
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xscheme defines its own scheme-interaction-mode that, quite rudely if
you ask me, calls not only its hooks, but also scheme-mode's. Among
them, turn-on-geiser-mode, causing havoc to users of xscheme's
run-scheme function.
We, ahem, fix this problem by checking that we're actually in
scheme-mode when our hook is called.
Thanks to Federico Beffa for his reports.
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For buffers containing a #lang directive, geiser-eval-buffer was simply
broken: one cannot send the whole region wrapped in a `begin' in that
case.
We try now to send the region below, although a real solution would
imply using #%module-begin as the wrapper, in order to be robust for
languages that define their own version of the macro (such as TR).
But people should use C-c C-a or C-c C-k and leave this silly function
alone instead.
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These functions are similar to geiser-eval-region and
geiser-eval-region-and-go, however they allow the user to operate on the
entire buffer, not requiring the user to narrow to a specific region.
This also differs slightly from geiser-compile-current-buffer as
geiser-eval-buffer does not require the contents of the buffer to
be saved prior to being sent to the REPL. Documentaion has also been
updated to include references to the new methods and their keybindings.
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Use a prefix before pressing C-x C-e to print the result of evaluating
the expression before mark to the current buffer.
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I'm not convinced that this is the right thing, and the effect is a
bit ugly (we use save-window-excursion), but maybe this is the correct
thing to do for users that want auto-start.
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When no live REPL is found, of course. The flag's imaginatively
called geiser-mode-start-repl-p.
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Since C-\ is a standard Emacs binding, and people know how to change
it anyway. I've also put the command in the menu for Geiser mode, for
discoverability. A pleasant surprise: greek lambdas are understood by
both Racket and Guile.
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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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As per Andy's request. Adding it to Racket (and to the user manual),
shouldn't be difficult).
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Since C-c C-z/Z apparently conflict with each other, and the new
keybinding is more friendly anyway.
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Mark, again.
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... which interns the symbol in the global obarray: rather unfriendly.
We still need to remove a few calls to that beast, and avoid intern in
the scheme reader.
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... and actually using it to implement geiser-smart-tab-mode. Always
nice to un-reinvent-the-wheel.
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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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It hadn't occurred to me that anyone wouldn't want non-automatic
geiser-mode often enough to require its own customization variable.
Rotty proved me wrong. Or maybe not, but he deserves a custom var!
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