lib/carto/parser.js
function() {
                var e, entities = [];

                e = $(this.addition);
                while (e || $(this.entity)) {
                    entities.push(e);
                    e = $(this.addition);
                }

                if (entities.length > 0) {
                    return new tree.Expression(entities);
                }
            }
function() {
                var e, entities = [];

                e = $(this.addition);
                while (e || $(this.entity)) {
                    entities.push(e);
                    e = $(this.addition);
                }

                if (entities.length > 0) {
                    return new tree.Expression(entities);
                }
            }
function ( ) { var e , entities = [ ] ; e = $ ( this . addition ) ; while ( e || $ ( this . entity ) ) { entities . push ( e ) ; e = $ ( this . addition ) ; } if ( entities . length > 0 ) { return new tree . Expression ( entities ) ; } }
Expressions either represent mathematical operations, or white-space delimited Entities.  @var * 2
Expressions either represent mathematical operations or white - space delimited Entities .