On Friday, 9 January 2015 at 13:25:17 UTC, ketmar via
Digitalmars-d-learn wrote:
if you *really* concerned with speed here, you'd better
consider using
regular expressions. as regular expression can be precompiled
and then
search for multiple words with only one pass over the source
string. i
believe that std.regex will use variation of Thomson algorithm
for
regular expressions when it is able to do so.
IMO that is not sound advice. Creating the state machine and
running will be more costly than using canFind or indexOf how
basically only compare char by char.
If speed is really need use strstr and look if it uses sse to
compare multiple chars at a time. Anyway benchmark and then
benchmark some more.
