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13 Language server protocol ¶

Under UNIX and MacOS X, Asymptote supports features of the Language Server Protocol (LSP), including function signature and variable matching. Under MSWindows, Asymptote currently supports LSP only when compiled within the Windows Subsystem for Linux.

Emacs users can enable the Asymptote language server protocol by installing lsp-mode using the following procedure:

• Add to the .emacs initialization file:

  (require 'package)
  (add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/") t)
  (package-initialize)
  

• Launch emacs and execute

  M-x package-refresh-contents
  M-x package-install
  

  and select lsp-mode.

• Add to the .emacs initialization file:

  (require 'lsp-mode)
  (add-to-list 'lsp-language-id-configuration '(asy-mode . "asymptote"))
  
  (lsp-register-client
   (make-lsp-client :new-connection (lsp-stdio-connection '("asy" "-lsp"))
                    :activation-fn (lsp-activate-on "asymptote")
                    :major-modes '(asy-mode)
                    :server-id 'asyls
                    )
   )
  

• Launch emacs and execute

  M-x lsp