ESC_k             107 ext/pcre/pcrelib/pcre_compile.c -ESC_h,      0,      0, -ESC_k,      0,      0,  ESC_n,      0,   /* h - o */
ESC_k             123 ext/pcre/pcrelib/pcre_compile.c /*  90 */     0,     0, -ESC_k,     'l',      0, ESC_n,      0, -ESC_p,
ESC_k             547 ext/pcre/pcrelib/pcre_compile.c         c = -ESC_k;
ESC_k            5095 ext/pcre/pcrelib/pcre_compile.c       if (-c == ESC_k && (ptr[1] == '<' || ptr[1] == '\'' || ptr[1] == '{'))