91 lines
2.2 KiB
JavaScript
91 lines
2.2 KiB
JavaScript
class GCodeParser {
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static normalizeInput(raw) {
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if (raw === undefined || raw === null) {
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return '';
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}
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if (Buffer.isBuffer(raw)) {
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raw = raw.toString('utf8');
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}
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return String(raw).trim();
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}
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static splitCommands(input) {
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if (!input) {
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return [];
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}
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// Preserve leading G/M on each segment.
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return input
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.trim()
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.split(/ (?=G|M)/i)
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.map(segment => segment.trim())
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.filter(Boolean);
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}
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static parseCommand(commandString) {
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if (!commandString || commandString.length === 0) {
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return null;
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}
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const tokens = commandString.trim().split(/\s+/);
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if (tokens.length === 0) {
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return null;
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}
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const commandToken = tokens[0].toUpperCase();
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if (!/^[GM]\d+/i.test(commandToken)) {
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return null;
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}
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const params = {};
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for (let i = 1; i < tokens.length; i++) {
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const token = tokens[i].trim();
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if (token.length === 0) {
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continue;
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}
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if (token.length === 1) {
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// Einzelner Buchstabe = Flag ohne Zahlenwert (z. B. 'R' in 'M114 R').
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if (/^[A-Za-z]$/.test(token)) {
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params[token.toUpperCase()] = true;
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}
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continue;
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}
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const key = token.charAt(0).toUpperCase();
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const valueString = token.substring(1);
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const value = Number(valueString);
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if (!Number.isNaN(value)) {
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params[key] = value;
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}
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}
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return {
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command: commandToken,
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params,
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raw: commandString.trim()
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};
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}
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static parse(raw) {
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const input = this.normalizeInput(raw);
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if (!input) {
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return [];
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}
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if (input.startsWith('$J=')) {
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return this.parse(input.substring(3).trim());
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}
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const commands = this.splitCommands(input)
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.map(commandString => this.parseCommand(commandString))
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.filter(Boolean);
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return commands;
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}
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}
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module.exports = GCodeParser;
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