RE_SYNTAX_POSIX_BASIC  205 _regex.h       #define RE_SYNTAX_ED RE_SYNTAX_POSIX_BASIC
RE_SYNTAX_POSIX_BASIC  207 _regex.h       #define RE_SYNTAX_SED RE_SYNTAX_POSIX_BASIC
RE_SYNTAX_POSIX_BASIC 5501 regex.cpp            RE_SYNTAX_POSIX_EXTENDED : RE_SYNTAX_POSIX_BASIC;