gcode-interpreter/dist/cjs/Interpreter.js

G-code Interpreter

'use strict';

var _rollupPluginBabelHelpers = require('./_virtual/_rollupPluginBabelHelpers.js');
var gcodeParser = require('gcode-parser');

var noop = function noop() {};

/**
 * Returns an object composed from arrays of property names and values.
 * @example
 *   fromPairs([['a', 1], ['b', 2]]);
 *   // => { 'a': 1, 'b': 2 }
 */
var fromPairs = function fromPairs(pairs) {
  var index = -1;
  var length = !pairs ? 0 : pairs.length;
  var result = {};
  while (++index < length) {
    var pair = pairs[index];
    result[pair[0]] = pair[1];
  }
  return result;
};
var partitionWordsByGroup = function partitionWordsByGroup() {
  var words = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
  var groups = [];
  for (var i = 0; i < words.length; ++i) {
    var word = words[i];
    var letter = word[0];
    if (letter === 'G' || letter === 'M' || letter === 'T') {
      groups.push([word]);
      continue;
    }
    if (groups.length > 0) {
      groups[groups.length - 1].push(word);
    } else {
      groups.push([word]);
    }
  }
  return groups;
};
var interpret = function interpret(self, data) {
  var groups = partitionWordsByGroup(data.words);
  for (var i = 0; i < groups.length; ++i) {
    var words = groups[i];
    var word = words[0] || [];
    var letter = word[0];
    var code = word[1];
    var cmd = '';
    var args = {};
    if (letter === 'G') {
      cmd = letter + code;
      args = fromPairs(words.slice(1));

      // Motion Mode
      if (code === 0 || code === 1 || code === 2 || code === 3 || code === 38.2 || code === 38.3 || code === 38.4 || code === 38.5) {
        self.motionMode = cmd;
      } else if (code === 80) {
        self.motionMode = '';
      }
    } else if (letter === 'M') {
      cmd = letter + code;
      args = fromPairs(words.slice(1));
    } else if (letter === 'T') {
      // T1 ; w/o M6
      cmd = letter;
      args = code;
    } else if (letter === 'F') {
      // F750 ; w/o motion command
      cmd = letter;
      args = code;
    } else if (letter === 'X' || letter === 'Y' || letter === 'Z' || letter === 'A' || letter === 'B' || letter === 'C' || letter === 'I' || letter === 'J' || letter === 'K') {
      // Use previous motion command if the line does not start with G-code or M-code.
      // @example
      //   G0 Z0.25
      //   X-0.5 Y0.
      //   Z0.1
      //   G01 Z0. F5.
      //   G2 X0.5 Y0. I0. J-0.5
      //   X0. Y-0.5 I-0.5 J0.
      //   X-0.5 Y0. I0. J0.5
      // @example
      //   G01
      //   M03 S0
      //   X5.2 Y0.2 M03 S0
      //   X5.3 Y0.1 M03 S1000
      //   X5.4 Y0 M03 S0
      //   X5.5 Y0 M03 S0
      cmd = self.motionMode;
      args = fromPairs(words);
    }
    if (!cmd) {
      continue;
    }
    if (typeof self.handlers[cmd] === 'function') {
      var func = self.handlers[cmd];
      func(args);
    } else if (typeof self.defaultHandler === 'function') {
      self.defaultHandler(cmd, args);
    }
    if (typeof self[cmd] === 'function') {
      var _func = self[cmd].bind(self);
      _func(args);
    }
  }
};
var Interpreter = /*#__PURE__*/function () {
  function Interpreter(options) {
    _rollupPluginBabelHelpers.classCallCheck(this, Interpreter);
    _rollupPluginBabelHelpers.defineProperty(this, "motionMode", 'G0');
    _rollupPluginBabelHelpers.defineProperty(this, "handlers", {});
    options = options || {};
    this.handlers = options.handlers || {};
    this.defaultHandler = options.defaultHandler;
  }
  return _rollupPluginBabelHelpers.createClass(Interpreter, [{
    key: "loadFromStream",
    value: function loadFromStream(stream) {
      var _this = this;
      var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : noop;
      var s = gcodeParser.parseStream(stream, callback);
      s.on('data', function (data) {
        interpret(_this, data);
      });
      return s;
    }
  }, {
    key: "loadFromFile",
    value: function loadFromFile(file) {
      var _this2 = this;
      var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : noop;
      var s = gcodeParser.parseFile(file, callback);
      s.on('data', function (data) {
        interpret(_this2, data);
      });
      return s;
    }
  }, {
    key: "loadFromFileSync",
    value: function loadFromFileSync(file) {
      var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : noop;
      var list = gcodeParser.parseFileSync(file);
      for (var i = 0; i < list.length; ++i) {
        interpret(this, list[i]);
        callback(list[i], i);
      }
      return list;
    }
  }, {
    key: "loadFromString",
    value: function loadFromString(str) {
      var _this3 = this;
      var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : noop;
      var s = gcodeParser.parseString(str, callback);
      s.on('data', function (data) {
        interpret(_this3, data);
      });
      return s;
    }
  }, {
    key: "loadFromStringSync",
    value: function loadFromStringSync(str) {
      var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : noop;
      var list = gcodeParser.parseStringSync(str);
      for (var i = 0; i < list.length; ++i) {
        interpret(this, list[i]);
        callback(list[i], i);
      }
      return list;
    }
  }]);
}();
var Interpreter$1 = Interpreter;

module.exports = Interpreter$1;