yap-6.3/packages/python/yap_kernel/README.md

#YAP Kernel for Jupyter

This package provides the IPython kernel for Jupyter.

Installation from source

This should install as part of the YAP system

Jupyter Lab

CodeMirror does not support highlighting for Prolog. YAP includes a port based on one that is used in SWISH. To use this mode from jupyter lab, do as follows:

1. run jupyter lab build (you may need root permission). Search the output for a aline such as:

[LabBuildApp] > node /usr/local/lib/python3.7/site-packages/jupyterlab/staging/yarn.js install

2, Add the following 3 lines below to the webpack.config.js file:

fs.ensureDirSync('node_modules/codemirror/mode/prolog');
fs.copySync(path.join(path.resolve(jlab.buildDir),'../../../kernels/yap_kernel/prolog.js'), 'node_modules/codemirror/mode/prolog/prolog.js');
fs.copySync(path.join(path.resolve(jlab.buildDir),'../../../kernels/yap_kernel/meta.js'), 'node_modules/codemirror/mode/meta.js');
..~~~~~~~~
These lines should copy YAP's prolog.js and a new version of the mode directory, meta.js. whenever you rebuild jlab, eg, if you add a new plugin.

Next, please check the lines in context.

be at around line 24:

output: jlab.outputDir });

fs.ensureDirSync('node_modules/codemirror/mode/prolog'); fs.copySync(path.join(path.resolve(jlab.buildDir),'../../../kernels/yap_kernel/prolog.js'), 'node_modules/codemirror/mode/prolog/prolog.js'); fs.copySync(path.join(path.resolve(jlab.buildDir),'../../../kernels/yap_kernel/meta.js'), 'node_modules/codemirror/mode/meta.js');

// Create the entry point file. var source = fs.readFileSync('index.js').toString();

3: Rerun "jupyter lab build"