PCRE_MODE16      1100 ext/pcre/pcrelib/pcre_internal.h #define PCRE_MODE          PCRE_MODE16
PCRE_MODE16      1104 ext/pcre/pcrelib/pcre_internal.h #define PCRE_MODE_MASK     (PCRE_MODE8 | PCRE_MODE16 | PCRE_MODE32)