Make String into only 1 line

Question

I have an output that is basically a paragraph and when I try to search the string for a substring, if that substring is split up it doesnt' work. How can I make the paragraph string into just 1 line?

Example string:

I have an output that is basically a paragraph and when I try 
to search the string for a substring, if that substring is split up it 
doesn't work. How can I make the paragraph string into just 1 line?

substring: "it doesn't work"

When I try to search for that substring, it doesn't return true.

Answer 1

It seems like you want to treat newlines as spaces. Writing efficient search algorithms is not trivial, but an approach that works and answers the question in your title, is

str := StringReplace(str, sLineBreak, ' ', [rfReplaceAll]);

That is, we simply replace all linebreaks with spaces. Without the magic constants, this is

str := StringReplace(str, #13#10, #32, [rfReplaceAll]);

Perhaps there are already spaces between the words, in addition to the linebreaks? Then just remove the linebreaks, without adding spaces:

str := StringReplace(str, #13#10, '', [rfReplaceAll]);