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Diffstat (limited to 'doc/repl.texi')
| -rw-r--r-- | doc/repl.texi | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/doc/repl.texi b/doc/repl.texi index 99b928c..560f3eb 100644 --- a/doc/repl.texi +++ b/doc/repl.texi @@ -1,4 +1,4 @@ -@node The REPL, Between the parens, Installation, Top +@node The REPL @chapter The REPL @anchor{quick-start} If you've followed the instructions in @ref{Setting it up}, your Emacs is @@ -11,6 +11,7 @@ ready, just come back here and proceed to the following sections. * Switching context:: * Completion and error handling:: * Autodoc and friends:: +* Seeing is believing:: * Customization and tips:: @end menu @@ -211,7 +212,7 @@ the last prompt, @kbd{@key{TAB}} will move to the next error in the buffer, and you can use @kbd{@key{BACKTAB}} everywhere to go to the previous one. -@node Autodoc and friends, Customization and tips, Completion and error handling, The REPL +@node Autodoc and friends, Seeing is believing, Completion and error handling, The REPL @section Autodoc and friends Oftentimes, there's more you'll want to know about an identifier @@ -274,7 +275,33 @@ will see, these commands are also available in Scheme buffers. @kbd{M-.} also works for modules: if your point is on an unambiguous module name, the file where it's defined will be opened for you. -@node Customization and tips, , Autodoc and friends, The REPL +@node Seeing is believing, Customization and tips, Autodoc and friends, The REPL +@section Seeing is believing + +@cindex image support +In schemes that support images as values (currently, that means Racket), +the REPL will display them inline if you're using them in a +graphics-aware Emacs. + +@imgc{repl-images} + +@cindex external image viewer +@cindex image viewer +For the terminal, images will appear as buttons: press return on them to +invoke an external viewer (configurable via @code{geiser-image-viewer}) +that will show you the image at hand. You can also ask for the same +behaviour on all emacsen by customising +@code{geiser-repl-inline-images-p} to @code{nil}. + +@cindex image cache +Geiser keeps a cache of the last displayed images in the directory +@code{geiser-image-cache-dir}, which defaults to the system's temp +directory, with up to @code{geiser-image-cache-keep-last} files. You +can invoke the external image viewer on any of them with @command{M-x +geiser-view-last-image}, which takes a prefix argument to indicate which +image number you want, 0 corresponding to the newest one. + +@node Customization and tips, , Seeing is believing, The REPL @section Customization and tips @cindex REPL customization |