I have a string in which I need to replace markers with values from a dictionary. It has to be as efficient as possible. Doing a loop with a string.replace is just going to consume memory (strings are immutable, remember). Would StringBuilder.Replace() be any better since this is was designed to work with string manipulations?
I was hoping to avoid the expense of RegEx, but if that is going to be a more efficient then so be it.
Note: I don't care about code complexity, only how fast it runs and the memory it consumes.
Average stats: 255-1024 characters in length, 15-30 keys in the dictionary.