The semi-colon is not treated as the start of a comment when enclosed in parentheses.

Author: cheton

src/index.js

@@ -62,9 +62,11 @@ const parseLine = (() => {
  }
  return cs;
  };
+ // http://linuxcnc.org/docs/html/gcode/overview.html#gcode:comments
+ // Comments can be embedded in a line using parentheses () or for the remainder of a lineusing a semi-colon. The semi-colon is not treated as the start of a comment when enclosed in parentheses.
  const stripComments = (() => {
- const re1 = new RegExp(/\s*[%#;].*/g); // Strip everything after %, #, or ; to the end of the line, including preceding spaces
- const re2 = new RegExp(/\s*\([^\)]*\)/g); // Remove anything inside the parentheses
+ const re1 = new RegExp(/\s*\([^\)]*\)/g); // Remove anything inside the parentheses
+ const re2 = new RegExp(/\s*;.*/g); // Remove anything after a semi-colon to the end of the line, including preceding spaces
  const re3 = new RegExp(/\s+/g);
  return (line => line.replace(re1, '').replace(re2, '').replace(re3, ''));
  })();