RE_CONTEXT_INVALID_DUP 2283 lib/regcomp.c        if (syntax & RE_CONTEXT_INVALID_DUP)
RE_CONTEXT_INVALID_DUP 2419 lib/regcomp.c        if ((syntax & RE_CONTEXT_INVALID_DUP)
RE_CONTEXT_INVALID_DUP  229 lib/regex.h    # define RE_NO_SUB (RE_CONTEXT_INVALID_DUP << 1)
RE_CONTEXT_INVALID_DUP  288 lib/regex.h      (_RE_SYNTAX_POSIX_COMMON | RE_BK_PLUS_QM | RE_CONTEXT_INVALID_DUP)