If the string is at the beginning of the line: you have the '^' at the beginning your regex. You also have to make sure that what you think is a single space is really a single space. Try changing the space in the regex to, say, '\s+' to match any kind and amount of white space. There are probably other things that could go wrong that I haven't thought of...

I might try answering your question once you have formatted your OP as suggested by eff_i_g below.

Until then, I'm afraid, I just don't understand it.