svg path parse wip (fork https://github.com/jkroso/parse-svg-path)

svg path parse wip.js

//https://github.com/jkroso/parse-svg-path

var cmdLength = {a:7, c:6, h:1, l:2, m:2, q:4, s:4, t:2, v:1, z:0}
var segPattern = /([astvzqmhlc])([^astvzqmhlc]*)/ig
var numPattern = /-?[0-9]*\.?[0-9]+(?:e[-+]?\d+)?/ig

function parseVals(args) {
	var nums = args.match(numPattern)
	return nums ? nums.map(Number) : []
}

function svgPathToArray(path) {
	var data = []
	path.replace(segPattern, function(_, cmd, args){
		var type = cmd.toLowerCase()
		args = parseVals(args)
		if (type == 'm' && args.length > 2) {
			data.push([cmd].concat(args.splice(0, 2)))
			type = 'l'
			cmd = cmd == 'm' ? 'l' : 'L'
		}
		while (true) {
			if (args.length == cmdLength[type]) {
				args.unshift(cmd)
				return data.push(args)
			}
			if (args.length < cmdLength[type]) throw new Error('malformed path data')
			data.push([cmd].concat(args.splice(0, cmdLength[type])))
		}
	})
	return data
}
/*
MoveTo: M, m
LineTo: L, l, H, h, V, v
Cubic Bézier Curve: C, c, S, s
Quadratic Bézier Curve: Q, q, T, t
Elliptical Arc Curve: A, a
ClosePath: Z, z
*/

function pathArrayToObjects(arr){
    pathCommands={
        "M"(){
            return "MoveTo"
        },
        "m"(){
            return "moveto"            
        },
        "L"(){
            return "LineTo"            
        },
        "l"(){
            return "lineto"               
        },
        "H"(){
            return "Horiz LineTo"            
        },
        "h"(){
            return "horiz lineto"
        },
        "V"(){
            return "Vert LineTo"            
        },
        "v"(){
            return "vert lineto"            
        },
        "C"(){
            return "Cubic Bezier"            
        },
        "c"(){
            return "cubic bezier"            
        },
        "S"(){
            return "Smooth Cubic Bezier"              
        },
        "s"(){
            return "smooth cubic bezier"            
        },
        "Q"(){
            return "Quad bezier"            
        },
        "q"(){
            return "quad bezier"            
        },
        "T"(){
            return "Smooth Quad Bezier"              
        },
        "t"(){
            return "smooth quad bezier"              
        },
        "A"(){
            return "Elliptical Arc"            
        },
        "a"(){
            return "elliptical arc"            
        },
        "Z"(){
             return "Close path"           
        },
        "z"(){
             return "close path"             
        }
    }
    
    return arr.map(function(item){
        return pathCommands[item[0]]()
    })
}

pathStr=`M44.5,65.5c38,0,1-65,30-65s46,57,60,57s-81,56-50,56s-74-2-74-2l-10-45l20-46l99,86`
var pathArray=svgPathToArray(pathStr)
console.log(pathArrayToObjects(pathArray))