Question

I want to find and replace all whitespace that is shown below between $‘s with just a single space.

NOTE: I added the $‘s manually to show you what I was looking to match. They are not actually present in the code – because if they were, it wouldn’t compile!

CClient::CClient$   $(Callback& callback):
    SecurityInfo$   $(NULL),
    ConnectInfo$    $(NULL),
    Session$    $(NULL),
    Id$         $(NULL),
    MyCallback$ $(callback),
    {
    unsigned long$           $something = 0;

    ConnectionId$            $= NumberOfClients++;

    SecurityInfo$            $= new SecurityInfoClass$  $();
    ConnectInfo$             $= new ConnectInfoClass$   $();

Here’s what I have so far:

s/(?<!^)(?: ){2,}+|\t+(?=\S)/ /g

It works OK, but the check for the beginning-of-line doesn’t work as I expected.

Thanks in advance.

Answer 1

I’m guessing you want something like:

s/(?<![ \t])(?!^)[ \t]{2,}(?![ \t])/ /mg;

Accepted this:

s/(?<![ \t])(?!^)[ \t]+(?![ \t])/ /mg;