[fpc-pascal] Which regex unit to use?

[Joost van der Sluis]

On Fri, 2010-02-26 at 09:56 +0200, Graeme Geldenhuys wrote:
> Hi,
> 
> There are a few regex units include with FPC and Lazarus, and dozens more
> available for Delphi (and probably FPC too).
> 
> Which one is the most well known, or best to use, or most feature complete
> regarding syntax etc...?
> 
>  * <fpcsrc>/packages/regexpr/src/old/regexpr.pp
>  * <fpcsrc>/packages/regexpr/src/regexp.pp

use
 <fpcsrc>/packages/regexpr/src/regex.pp

The regexp unit is a wrapper for backwards compatibility.

If you want to know something about speed, use the shootout. Although
for some reason the implementation for regex-dna is not submitted to the
shootout. But you can find the source in <fpcsrc>/tests/bench/shootout.

Joost