node_modules/xregexp/src/addons/unicode-properties.js

/*!
 * XRegExp Unicode Properties 4.3.0
 * <xregexp.com>
 * Steven Levithan (c) 2012-present MIT License
 * Unicode data by Mathias Bynens <mathiasbynens.be>
 */

import properties from '../../tools/output/properties';

export default (XRegExp) => {

    /**
     * Adds properties to meet the UTS #18 Level 1 RL1.2 requirements for Unicode regex support. See
     * <http://unicode.org/reports/tr18/#RL1.2>. Following are definitions of these properties from
     * UAX #44 <http://unicode.org/reports/tr44/>:
     *
     * - Alphabetic
     *   Characters with the Alphabetic property. Generated from: Lowercase + Uppercase + Lt + Lm +
     *   Lo + Nl + Other_Alphabetic.
     *
     * - Default_Ignorable_Code_Point
     *   For programmatic determination of default ignorable code points. New characters that should
     *   be ignored in rendering (unless explicitly supported) will be assigned in these ranges,
     *   permitting programs to correctly handle the default rendering of such characters when not
     *   otherwise supported.
     *
     * - Lowercase
     *   Characters with the Lowercase property. Generated from: Ll + Other_Lowercase.
     *
     * - Noncharacter_Code_Point
     *   Code points permanently reserved for internal use.
     *
     * - Uppercase
     *   Characters with the Uppercase property. Generated from: Lu + Other_Uppercase.
     *
     * - White_Space
     *   Spaces, separator characters and other control characters which should be treated by
     *   programming languages as "white space" for the purpose of parsing elements.
     *
     * The properties ASCII, Any, and Assigned are also included but are not defined in UAX #44. UTS
     * #18 RL1.2 additionally requires support for Unicode scripts and general categories. These are
     * included in XRegExp's Unicode Categories and Unicode Scripts addons.
     *
     * Token names are case insensitive, and any spaces, hyphens, and underscores are ignored.
     *
     * Uses Unicode 12.1.0.
     *
     * @requires XRegExp, Unicode Base
     */

    if (!XRegExp.addUnicodeData) {
        throw new ReferenceError('Unicode Base must be loaded before Unicode Properties');
    }

    const unicodeData = properties;

    // Add non-generated data
    unicodeData.push({
        name: 'Assigned',
        // Since this is defined as the inverse of Unicode category Cn (Unassigned), the Unicode
        // Categories addon is required to use this property
        inverseOf: 'Cn'
    });

    XRegExp.addUnicodeData(unicodeData);
};