struct grep_pat *pattern_list;
struct grep_pat **pattern_tail;
struct grep_expr *pattern_expression;
+ const char *prefix;
int prefix_length;
regex_t regexp;
int linenum;
int pathname;
int null_following_name;
int color;
+ int max_depth;
int funcname;
char color_match[COLOR_MAXLEN];
const char *color_external;