unified-query/dist/parsers/boolean.js

Composable search input with autocompletion and a rich query-language parser for the Unified Data System

/** Matches literal `true` or `false` (lower-case, spec-exact). */
export const booleanParser = (word, pos) => {
    if (word !== 'true' && word !== 'false')
        return null;
    return {
        kind: 'boolean',
        value: word === 'true',
        raw: word,
        from: pos,
        to: pos + word.length,
    };
};