RE_FRUGAL         150 test/manual/etags/c-src/emacs/src/regex.h #define RE_SHY_GROUPS (RE_FRUGAL << 1)
RE_FRUGAL         184 test/manual/etags/c-src/emacs/src/regex.h   (RE_CHAR_CLASSES | RE_INTERVALS | RE_SHY_GROUPS | RE_FRUGAL)