@jupyter-lsp/jupyterlab-lsp/lib/transclusions/ipython-sql/extractors.js

Language Server Protocol integration for JupyterLab

import { RegExpForeignCodeExtractor } from '../../extractors/regexp';
export const SQL_URL_PATTERN = '(?:(?:.*?)://(?:.*))';
// note: -a/--connection_arguments and -f/--file are not supported yet
const singleArgumentOptions = [
    '-x',
    '--close',
    '-c',
    '--creator',
    '-p',
    '--persist',
    '--append'
];
const zeroArgumentOptions = ['-l', '--connections'];
const COMMAND_PATTERN = '(?:' +
    (zeroArgumentOptions.join('|') +
        '|' +
        singleArgumentOptions.map(command => command + ' \\w+').join('|')) +
    ')';
export let foreignCodeExtractors = {
    // general note: to match new lines use [^] instead of dot, unless the target is ES2018, then use /s
    python: [
        new RegExpForeignCodeExtractor({
            language: 'sql',
            pattern: `^%%sql(?: (?:${SQL_URL_PATTERN}|${COMMAND_PATTERN}|(?:\\w+ << )|(?:\\w+@\\w+)))?\n?((?:.+\n)?(?:[^]*))`,
            foreignCaptureGroups: [1],
            isStandalone: true,
            fileExtension: 'sql'
        }),
        new RegExpForeignCodeExtractor({
            language: 'sql',
            pattern: `(?:^|\n)%sql (?:${SQL_URL_PATTERN}|${COMMAND_PATTERN}|(.*))\n?`,
            foreignCaptureGroups: [1],
            isStandalone: false,
            fileExtension: 'sql'
        })
    ]
};
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