json-joy/esm/json-patch/op/OpStarts.js

Collection of libraries for building collaborative editing apps.

import { AbstractPredicateOp } from './AbstractPredicateOp';
import { find, formatJsonPointer } from '@jsonjoy.com/json-pointer';
import { OPCODE } from '../constants';
/**
 * @category JSON Predicate
 */
export class OpStarts extends AbstractPredicateOp {
    value;
    ignore_case;
    // tslint:disable-next-line variable-name
    constructor(path, value, ignore_case) {
        super(path);
        this.value = value;
        this.ignore_case = ignore_case;
    }
    op() {
        return 'starts';
    }
    code() {
        return OPCODE.starts;
    }
    test(doc) {
        const { val } = find(doc, this.path);
        if (typeof val !== 'string')
            return false;
        const outer = this.ignore_case ? val.toLowerCase() : val;
        const inner = this.ignore_case ? this.value.toLowerCase() : this.value;
        const test = outer.startsWith(inner);
        return test;
    }
    toJson(parent) {
        const op = {
            op: 'starts',
            path: formatJsonPointer(parent ? this.path.slice(parent.path.length) : this.path),
            value: this.value,
        };
        if (this.ignore_case)
            op.ignore_case = this.ignore_case;
        return op;
    }
    toCompact(parent, verbose) {
        const opcode = verbose ? 'starts' : OPCODE.starts;
        return this.ignore_case
            ? [opcode, parent ? this.path.slice(parent.path.length) : this.path, this.value, 1]
            : [opcode, parent ? this.path.slice(parent.path.length) : this.path, this.value];
    }
    encode(encoder, parent) {
        const ignoreCase = this.ignore_case;
        encoder.encodeArrayHeader(ignoreCase ? 4 : 3);
        encoder.writer.u8(OPCODE.starts);
        encoder.encodeArray(parent ? this.path.slice(parent.path.length) : this.path);
        encoder.encodeString(this.value);
        if (ignoreCase)
            encoder.writer.u8(1);
    }
}