build/gpf-debug.js
function (line) {
            if (this._content) {
                this._content = this._content + this._newLine + line;
            } else {
                this._values = [];
                this._content = line;
            }
            return this._parseContent();
        }
function (line) {
            if (this._content) {
                this._content = this._content + this._newLine + line;
            } else {
                this._values = [];
                this._content = line;
            }
            return this._parseContent();
        }
function ( line ) { if ( this . _content ) { this . _content = this . _content + this . _newLine + line ; } else { this . _values = [ ] ; this . _content = line ; } return this . _parseContent ( ) ; }
If some content remains from previous parsing, concatenate it and parse

@param {String} line CSV line
@return {String[]|undefined} Resulting values or undefined if not yet finalized
@since 0.2.3
If some content remains from previous parsing concatenate it and parse