使用正则表达式替换除第一次出现的空白子串之外的所有内容 [英] use regex to replace all but first occurrence of a substring of blanks

问题描述

以下声明可以正常运行：

The following statement runs fine:

$wb.upLinearLoad.append('<div>' + sprintf("%5s%8.1f to%7.1f%8.1f%6.0f%8.0f",sLinearSegName[i][j],fLinearPtBA[i][j],fLinearPtBA[i][j+1],fLen,fLinearPtPpi[i][j],fLinearSegMaxWt[i][j]).replace(/ /," &nbsp;") + '</div>');

但是，我现在需要动态改变最后两个变量的颜色，所以我决定将它们用class ='wt'括起来控制它们的颜色。这给出了：

However, I now have a need to dynamically change the color of the last two variables only, so I decided to enclose them in a span with a class='wt' to control their color. This gives:

$wb.upLinearLoad.append('<div>' + sprintf("%5s%8.1f to%7.1f%8.1f<span class='wt'>%6.0f%8.0f</span>",sLinearSegName[i][j],fLinearPtBA[i][j],fLinearPtBA[i][j+1],fLen,fLinearPtPpi[i][j],fLinearSegMaxWt[i][j]).replace(/ /," &nbsp;") + '</div>');

失败，因为span和class之间的空格变为& nbsp ;

which fails because the space between span and class gets changed to  

我的正则表达式能力仅与示例有关，因此问题是如何将除第一个空格之外的所有空格更改为& nbsp; ？

My regex ability goes only as far the example, so the question becomes how do I change all but the first space to  ?

欢迎任何和所有建议，特别是如果您发现我的整个方法都很差。

Any and all suggestions are most welcome, and especially if you see that my whole approach is poor.

推荐答案

只是不要使用字符串。相反，使用jQuery / DOM操作。它不容易出错并且效率更高。

Just don't do it using strings. Instead, use the jQuery/DOM manipulation. It's less prone to error and more efficient.

$wb.upLinearLoad.append(
    $('<div>').append(
        sprintf("%5s%8.1f to%7.1f%8.1f", sLinearSegName[i][j], fLinearPtBA[i][j], fLinearPtBA[i][j+1], fLen),
        $('<span>').addClass('wt').text(sprintf("%6.0f%8.0f</span>", fLinearPtPpi[i][j], fLinearSegMaxWt[i][j]))[0]
    )
);

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