please help me with this regular expression

i use开发者_如何学编程 a slideshow jquery plugin which automatically create a thumbnails path from my original image path as follows

replace: [/(\.[^\.]+)$/, 't$1'],

whenever i have a blablablabla.jpg

it knows that the thumb path is the same path with t suffix blablablablat.jpg

but i want to change this to /thumb/blablablabla.jpg

how can i achieve this using regular expression as the example above

Try this:

replace: [/^(.+)$/, '/thumb/$1']

If you have blablablabla.jpg as input, then you do not need regexp for it at all. Simply prefix it with concatenation.

Like this ?

replace: [/([^./]+)(\.[^\.]+)$/, '/thumb/$1$2'],