MAX_PATTERN_SIZE  296 pcre/pcre_internal.h #define MAX_PATTERN_SIZE (1 << 16)
MAX_PATTERN_SIZE  309 pcre/pcre_internal.h #define MAX_PATTERN_SIZE (1 << 24)
MAX_PATTERN_SIZE  323 pcre/pcre_internal.h #define MAX_PATTERN_SIZE (1 << 30)   /* Keep it positive */