RE_SYNTAX_POSIX_EXTENDED 183 _regex.h ((RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DEBUG) \ RE_SYNTAX_POSIX_EXTENDED 187 _regex.h (RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS \ RE_SYNTAX_POSIX_EXTENDED 5501 regex.cpp RE_SYNTAX_POSIX_EXTENDED : RE_SYNTAX_POSIX_BASIC;