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Which regular experssion matching method does Glibc implement, NFA or DFA?
- From: gliao at cs dot ucr dot edu
- To: libc-alpha at sourceware dot org
- Cc: jakub at redhat dot com
- Date: Sun, 6 May 2007 22:20:12 -0700 (PDT)
- Subject: Which regular experssion matching method does Glibc implement, NFA or DFA?
Hey all,
I am a newbie for glibc. I am not sure whether I post question in the
right place. If not, pls forgive me!
I thought that regular expression matching (regexec & regcomp)of the
mainstream glibc is based on NFA instead of DFA. However, What makes me
confused is that I found there were many data structures named dfa* when I
took a look at source code of regcomp.c. could you tell me which one is
glibc implementing, DFA or NFA?
Thanks in advance
Guangdeng