使用javascript解析SVG变换属性 [英] Parse SVG transform attribute with javascript

问题描述

假设我们有一个SVG转换字符串:

Supposing we have an SVG transform string:

transform = "translate(6,5),scale(3,3)";

是否有一个光滑的正则表达式函数可用于将其解析为可用的东西?

Is there a slick regex function we could use to parse that into something usable?

推荐答案

这是一个漂亮的小片段代码，可能会满足您的需要，它应该涵盖大多数情况，以防您要解析的字符串具有不同数量的参数:

Here's a nifty little snippet of code that might get you what you need, it should cover most scenario in case the string you intend to parse has different number of arguments:

function parse (a)
{
    var b={};
    for (var i in a = a.match(/(\w+\((\-?\d+\.?\d*e?\-?\d*,?)+\))+/g))
    {
        var c = a[i].match(/[\w\.\-]+/g);
        b[c.shift()] = c;
    }
    return b;
}

运行此

parse('translate(6,5),scale(3,3.5),a(1,1),b(2,23,-34),c(300)');

会导致以下结果:

{
    translate: [ '6', '5' ],
    scale: [ '3', '3.5' ],
    a: [ '1', '1' ],
    b: [ '2', '23', '-34' ],
    c: [ '300' ]
}

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