各位大侠，帮忙看看表达式怎么修改？

[神码浮云]

//(120.23 24.56)
			var pointReg;
			pointReg = /(\d+.?\d*)\s+(\d+.?\d*)/g;
			//(120.23 24.56, 121.14 23.69, 121.12 23.232)
			var lineReg = /\((\s?\d+\.\d*\s+\d+\.\d*\,?)+\)/g;
			//((120.23 24.56, 121.14 23.69, 121.12 23.232),(120.23 24.56, 121.14 23.69, 121.12 23.232))
			var graphicReg;
			graphicReg = /(\((((\(((\d+.?\d*)\s+(\d+.?\d*),?)+\)),?)+),?\)),?/g;
			
			var wkid = 4326;
			if(points.indexOf("POINT") == 0) {
				var pointResult = pointReg.exec(points);
				var pr=[],pt=[],prarr=[];
				pr.push(parseFloat(pointResult[1]));
				pr.push(parseFloat(pointResult[2]));
				pt.push(pr);
				prarr.push(pt);
			}

上面代码中的 3 条正则表达式，只支持正数，负数就不行，我想改造支持正数和负数，请问一下该怎么处理，试了很久都不对，各位帮帮忙，万分感谢！

[Logerlink]

(120.23 24.56) -?\d+\.?\d+ ((120.23 24.56, 121.14 23.69, 121.12 23.232),(120.23 24.56, 121.14 23.69, 121.12 23.232)) (((-?\d+\.?\d+ -?\d+\.?\d+)(, )?)+) 这样？