@jupyter-lsp/jupyterlab-lsp/lib/transclusions/ipython-rpy2/overrides.js

Language Server Protocol integration for JupyterLab

import { LINE_MAGIC_PREFIX } from '../ipython/overrides';
import { RPY2_MAX_ARGS, parseArgs, argsPattern, reversePattern, reverseReplacement } from './rpy2';
export let overrides = [
    {
        // support up to 10 arguments
        pattern: LINE_MAGIC_PREFIX + '%R' + argsPattern(RPY2_MAX_ARGS) + '( .*)?(\n|$)',
        replacement: (match, prefix, ...args) => {
            let r = parseArgs(args, -4);
            // note: only supports assignment or -o/--output, not both
            // TODO assignment like in x = %R 1 should be distinguished from -o
            return `${prefix}${r.outputs}rpy2.ipython.rmagic.RMagics.R("${r.content || ''}", "${r.others}"${r.inputs})`;
        },
        scope: 'line',
        reverse: {
            pattern: reversePattern(),
            replacement: (match, ...args) => {
                let r = reverseReplacement(match, ...args);
                return '%R' + r.input + r.output + r.other + r.contents;
            },
            scope: 'line'
        }
    },
    // rpy2 extension R magic - this should likely go as an example to the user documentation, rather than being a default
    //   only handles simple one input - one output case
    {
        pattern: '^%%R' + argsPattern(RPY2_MAX_ARGS) + '(\n)?([\\s\\S]*)',
        replacement: (match, ...args) => {
            let r = parseArgs(args, -3);
            return `${r.outputs}rpy2.ipython.rmagic.RMagics.R("""${r.content}""", "${r.others}"${r.inputs})`;
        },
        scope: 'cell',
        reverse: {
            pattern: reversePattern('"""', true),
            replacement: (match, ...args) => {
                let r = reverseReplacement(match, ...args);
                return '%%R' + r.input + r.output + r.other + '\n' + r.contents;
            },
            scope: 'cell'
        }
    },
    {
        pattern: LINE_MAGIC_PREFIX + '%Rdevice( .*)?(\n|$)',
        replacement: (match, prefix, ...args) => {
            return `${prefix}rpy2.ipython.rmagic.RMagics.Rdevice("${args[0]}", "")`;
        },
        scope: 'line',
        reverse: {
            pattern: reversePattern('"', false, 'Rdevice'),
            replacement: (match, ...args) => {
                let r = reverseReplacement(match, ...args);
                return '%Rdevice' + r.input + r.output + r.other + r.contents;
            },
            scope: 'line'
        }
    }
];
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