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2.7 Editing modes

Users of emacs can edit Asymptote code with the mode asy-mode, after enabling it by putting the following lines in their .emacs initialization file, replacing ASYDIR with the location of the Asymptote system directory (by default, /usr/local/share/asymptote or C:\Program Files\Asymptote under MSDOS):

(add-to-list 'load-path "ASYDIR")
(autoload 'asy-mode "asy-mode.el" "Asymptote major mode." t)
(autoload 'lasy-mode "asy-mode.el" "hybrid Asymptote/Latex major mode." t)
(autoload 'asy-insinuate-latex "asy-mode.el" "Asymptote insinuate LaTeX." t)
(add-to-list 'auto-mode-alist '("\\.asy$" . asy-mode))

Particularly useful key bindings in this mode are C-c C-c, which compiles and displays the current buffer, and the key binding C-c ?, which shows the available function prototypes for the command at the cursor. For full functionality you should also install the Apache Software Foundation package two-mode-mode:

Once installed, you can use the hybrid mode lasy-mode to edit a LaTeX file containing embedded Asymptote code (see section LaTeX usage). This mode can be enabled within latex-mode with the key sequence M-x lasy-mode <RET>. On UNIX systems, additional keywords will be generated from all asy files in the space-separated list of directories specified by the environment variable ASYMPTOTE_SITEDIR. Further documentation of asy-mode is available within emacs by pressing the sequence keys C-h f asy-mode <RET>.

Fans of vim can customize vim for Asymptote with

cp /usr/local/share/asymptote/asy.vim ~/.vim/syntax/asy.vim

and add the following to their ~/.vimrc file:

augroup filetypedetect
au BufNewFile,BufRead *.asy     setf asy
augroup END
filetype plugin on

If any of these directories or files don’t exist, just create them. To set vim up to run the current asymptote script using :make just add to ~/.vim/ftplugin/asy.vim:

setlocal makeprg=asy\ %
setlocal errorformat=%f:\ %l.%c:\ %m

Syntax highlighting support for the KDE editor Kate can be enabled by running in the /usr/local/share/asymptote directory and putting the generated asymptote.xml file in ~/.kde/share/apps/katepart/syntax/.

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