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#ifndef search_h
#define search_h
#include "buffer.h"
#define PCRE2_CODE_UNIT_WIDTH 8
#include <pcre2.h>
////////////////////////////////////////////////////////////////////////////
//
// The Search class encapsulates the entire functionality of matching
// patterns against the message.
//
// There are two main modes, both implemented by the overloaded find()
// function. The first find() function matches a pattern against
// the message, the second find() function matches a pattern against
// text in memory.
//
// The find() function requires that the pattern, and pattern flags
// be already separated.
//
// The find() function returns -1 if there was an error in the format
// of the regular expression, 0 if the pattern was good, and it was
// successfully searched.
//
// The 'score' variable is set when find() returns 0. If a pattern was
// found, it is set to 1, else it is set to 0. If the pattern flags
// requested a weighted scoring search, the 'score' variable will
// contain the calculated score.
//
// If a weighted scoring is not requested, the find() function automatically
// sets the MATCH... variables (from the '!' operator).
//
////////////////////////////////////////////////////////////////////////////
class MessageInfo;
class Message;
class Search {
pcre2_code *pcre_regexp;
pcre2_match_data *match_data;
Buffer current_line;
Buffer next_line;
int match_top_header, match_other_headers, match_body;
double weight1, weight2;
int scoring_match;
int init(const char *, const char *);
void cleanup();
public:
double score; // For weighted scoring. Without scoring, this is
// either 0, or 1.
Search() : pcre_regexp(NULL),
match_data(NULL) {}
~Search() { cleanup(); }
int find(Message &, MessageInfo &, const char *, const char *,
Buffer *);
int find(const char *, const char *, const char *, Buffer *);
private:
int findinline(Message &, const char *, Buffer *);
int findinsection(Message &, const char *, Buffer *);
void init_match_vars(const char *,
PCRE2_SIZE *,
uint32_t,
Buffer *);
Buffer search_expr;
Buffer *foreachp_arg;
static int search_cb(const char *ptr, size_t cnt, void *arg);
int search_cb(const char *ptr, size_t cnt);
} ;
#endif
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