Support for language servers

Support for language servers is experimental

What is a language server?

A language server is a tool that allows a code editor such as Rapunzel to implement features such as autocompletion, calltips, symbol browsing, etc. Different language servers provide these features for different languages. The code editor and the server communicate with each other through the so-called Language Server Protocol (LSP).

Enabling language-server support

To enable support for language servers in Rapunzel, you need to install:

• The LanguageServer extension
• A language server for each language that you want to use

LanguageServer extension

The LanguageServer extension provides general support for language servers in Rapunzel.

Anaconda:

conda config --add channels cogsci --add channels conda-forge
conda install opensesame-extension-language_server
conda install nodejs  # optional: provides npm, see below

Ubuntu:

sudo add-apt-repository ppa:smathot/cogscinl
sudo apt update
sudo apt install python3-opensesame-extension-language-server

CSS

CSS support is provided through the VSCode CSS Language Server. This needs to be installed through npm.

npm install -g vscode-css-languageserver-bin

JavaScript/ TypeScript

JavaScript/ TypeScript support is provided through the TypeScript Language Server. This needs to be installed through npm.

npm install -g typescript-language-server typescript

JSON

JSON support is provided through the VSCODE JSON Language Server. This needs to be installed through npm.

npm install -g vscode-json-languageserver

Python

Python support is provided through the Python Language Server.

Anaconda:

conda config --add channels conda-forge
conda install python-language-server

PyPi:

pip install python-language-server

Enabling Python support in the Language replaces the Python support that is built into Rapunzel.

R

R support is provided through the R Language Server. This needs to be installed in R from CRAN.

install.packages("languageserver")

YAML

YAML support is provided through the YAML Language Server. This needs to be installed through npm.

npm install -g yaml-language-server