ESC_N             161 ext/pcre/pcrelib/pcre_compile.c      -ESC_N,                  0,
ESC_N             208 ext/pcre/pcrelib/pcre_compile.c /*  D0 */   '}',     0, -ESC_K,       0,      0,-ESC_N,      0, -ESC_P,
ESC_N            1177 ext/pcre/pcrelib/pcre_compile.c if (escape == ESC_N && ptr[1] == CHAR_LEFT_CURLY_BRACKET &&
ESC_N            4287 ext/pcre/pcrelib/pcre_compile.c         else if (escape == ESC_N)            /* \N is not supported in a class */