POSIX regex snarfed from Doug McIlroy's C++. Converted to C by Glenn Fowler. *'d features have been added to Doug's original code. testre should compile with other regex implementations, but you may need to run with -c to catch non-terminating loops and memory faults. FEATURE BRE ERE ARE ------- --- --- --- negation NO expr \! expr ! conjunction NO expr \& expr expr & expr NULL subgroups YES NO YES word boundaries* \< expr \> \< expr \> < expr > minimal match* NO REG_MINIMAL REG_MINIMAL shell patterns* REG_SHELL NO NO ksh patterns* NO NO REG_SHELL
