@ngx-mask/core/esm2015/lib/tokens.js

[@ngx-mask/core](https://github.com/IKatsuba/ngx-mask#readme)

import { InjectionToken } from '@angular/core';
import { MaskPatterns } from './mask';
export const NGX_MASK_OPTIONS = new InjectionToken('NGX_MASK_OPTIONS', {
    providedIn: 'root',
    factory() {
        return {
            tokens: {
                '0': { pattern: MaskPatterns.number, default: '0' },
                '9': { pattern: MaskPatterns.number, optional: true },
                'A': { pattern: '[a-zA-Z0-9]' },
                'S': { pattern: '[a-zA-Z]' },
                'U': {
                    pattern: '[a-zA-Z]',
                    transform: (c) => c.toLocaleUpperCase()
                },
                'L': {
                    pattern: '[a-zA-Z]',
                    transform: (c) => c.toLocaleLowerCase()
                },
                '$': { escape: true }
            }
        };
    }
});
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