Find Title Attribute & Link Title in HTML using REGEX
I used <a[^>]*?title=\"([^\"]*?\"[^>]*?> 开发者_如何学Pythonand found all Links with title tags. How can I find all Links with no title tags & title attribute? And how can I find all image ALT tags that are empty or have no ALT tag?
See this classic post on SO RegEx match open tags except XHTML self-contained tags
@Fredrik has you covered pretty well, I think, but here's an alternate general method for this kind of sophisticated find/replace in markup.
Since I'm no regex guru, I like to use jQuery + browser debugger tools + copy/pasting for this kind of thing. I view the page in Firefox(Chrome/dev tools works great, too), open up the Firebug console, and perform the actions in jQuery goodies, something like this:
$('a').each(function(){
if ($(this).filter('[title]').length == 0) {
//if there's no title attr
} else if ($(this).attr('title') == "") {
//if title is empty empty
}
// etc.
});
// repeat pattern for imgs...
When you're done with your manipulations, copy the relevant section from the debugger (or just grab the whole <body>) and paste it back into your editor.
I find this method much easier to understand than regexes, but that's just because I'm not too bright. HTH.
加载中,请稍侯......
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