@equantic/linq/filtering/base.js

eQuantic Linq for JavaScript

import { splitArguments } from '../funcs/index.js';
export const funcRegex = /(\b[^()]+)\((.*)\)$/;
export function parseExpression(exp) {
    const arr = exp.split(':');
    const [prop, ...rest] = arr;
    const propertyName = prop.trim();
    let operator = 'eq';
    let value = '';
    if (rest.length > 0) {
        const v = rest.join(':');
        const match = v.match(funcRegex);
        if (match) {
            operator = match[1];
            value = match[2];
        }
        else
            value = v;
    }
    return { column: propertyName, value, operator };
}
export function parseComposite(exp, result) {
    const compositeMatch = exp.match(funcRegex);
    if (compositeMatch == null || compositeMatch.length <= 1 || compositeMatch[1].indexOf(':') >= 0)
        return null;
    const operator = compositeMatch[1];
    if (!operator)
        return null;
    const args = splitArguments(compositeMatch[2]);
    return { values: args, compositeOperator: operator };
}