regex to replace all leading “>” with only one “>”

Question

How do I make an expression to match and replace all leading > with only one >

I tried using ^>(.*?)[^\\W]+ but that doesn't seem to be working for all cases.

Some of the possible cases:

>> >> > some matching <string> goes in here >...
>   > >
>   > >\n
>

Should look like

> some matching <string> goes in here >...
>
>
>

Answer 1

I think you're looking for

/^[>\t ]+/

to replace with "> "

Answer 2

How about this one?

/>[>\s]+/g

http://jsfiddle.net/kS9ny/

to only affect leading... add a ^ or remove the g

/^>[>\s]+/

http://jsfiddle.net/kS9ny/2/

Answer 3

str.replace(/^(\s*>\s*)+/gm, '> ');

Answer 4

尝试这个

str.replace(/^>[>\s]*/gm, '>')

Answer 5

请尝试这种模式，它应该做您想要的：

/(>\s*)+/