There is the gplex scanner generator (http://plas.fit.qut.edu.au/gplex/) for the C#-programming language. Due to the mono runtime environment (http://www.mono-project.com/) C# code can be run on Win32, Linux and Mac-OSX platforms. As our wc sample run below suggests gplex scanner generated code is slower than Java JIT-compiled code but faster than Java-interpreted code. The mono application requires much less memory.

Tool/Queries	1	10	100	1000	10000
wc-flex	0.005	0.011	0.087	0.912	10.426
wc-java	0.197	0.248	0.367	1.549	14.707
wc-java016	0.216	0.263	0.346	1.533	14.806
wc-java064	0.209	0.243	0.364	1.522	14.649
wc-java512	0.216	0.247	0.351	1.542	16.486
wc-javaip	0.193	0.422	2.808	28.353	331.753
wc-mono1.2	0.168	0.282	1.580	15.650	175.863
wc-mono2.0	0.147	0.267	1.676	15.870	187.633
wc-mono2.0-static	0.150	0.272	1.670	16.265	189.411
wc-re2c	0.004	0.006	0.038	0.382	4.301
wc-unix	0.010	0.044	0.453	4.782	54.704

wc-mono-static means that a executable with the mono-runtime linked in was tested. Mono-frameworks were 1.2 and 2.0.1. Different options for java memory were tested. java016 means that java was run with the -Xmx16m option.