gsender

class GrblHalLineParserResultAXS {
    static parse(line) {
        // [AXS:3:XYZ]  - count and axis letters (normal)
        // [AXS:4]      - count only, no letters (some builds)
        const r = line.match(/^\[(?:AXS:)([^\]]*)\]$/);
        if (!r) {
            return null;
        }

        const axisInformation = r[1].split(':');

        const axisCount = Number.parseInt(axisInformation[0], 10);
        // Letters are the authoritative source. grblHAL can be built with
        // arbitrary axis letters and ordering, so when the count and the letters
        // disagree we trust the letters and ignore the count.
        const axes = (axisInformation[1] || '')
            .split('')
            .filter((letter) => /[A-Za-z]/.test(letter))
            .map((letter) => letter.toUpperCase());

        // Nothing usable in the line - fall through to the other parsers rather
        // than reporting a malformed AXS result.
        if (axes.length === 0 && !Number.isFinite(axisCount)) {
            return null;
        }

        const payload = {
            count: axes.length > 0 ? axes.length : axisCount,
            axes: axes
        };

        return {
            type: GrblHalLineParserResultAXS,
            payload
        };
    }
}

export default GrblHalLineParserResultAXS;