jquery - 正则表达式未按预期工作

Question

编写了一些代码来帮助 Find special markers in sequence and do something to the text in between

这是 fiddle :http://jsfiddle.net/mplungjan/GyPHH/

为什么每个正则表达式只运行一次以及如何处理嵌套条目

<div id="texts">
**this** **would** make it **bold**  __this would__ make it __underlined__

__**how about bold and underlined**__

and

**__the other way around__**
</div>

var res = {
    boldIt:/\*\*(.*?)\*\*/g,
    underlineIt:/\_\_(.*?)\_\_/g
}
$.each(res, function(type, re) {
  var s = $("#texts").html();    
  var m = re.exec(s);
  var found = m[0];
  $.each(m, function(index, value) {    
    if (index==0) return true;
    var html = s.replace(found,'<span class="'+type+'" >'+value+'</span>',"g");
    $("#texts").html(html);
  });
});

Answer 1

该代码不必要地复杂。试试这个:

var res = {
    boldIt:/\*\*(.*?)\*\*/g,
    underlineIt:/\_\_(.*?)\_\_/g
}

$.each(res, function(type, re) {
    var txt = $( "#texts" ).html();
    $( "#texts" ).html( txt.replace( re, '<span class="'+type+'" >$1</span>' ) );
});