1 files changed, 79 insertions, 0 deletions
diff --git a/maildrop/search.h b/maildrop/search.h
new file mode 100644
index 0000000..1eda5aa
--- /dev/null
+++ b/maildrop/search.h
@@ -0,0 +1,79 @@
+#ifndef	search_h
+#define	search_h
+
+
+#include	"re.h"
+#include	"buffer.h"
+
+#if	HAVE_PCRE_H
+#include	<pcre.h>
+#else
+#include	<pcre/pcre.h>
+#endif
+
+////////////////////////////////////////////////////////////////////////////
+//
+// 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 {
+
+	pcre	*pcre_regexp;
+	pcre_extra *pcre_regexp_extra;
+	int	*pcre_vectors;
+	size_t	pcre_vector_count;
+
+	Re	regexp;
+	Buffer	current_line;
+	Buffer	next_line;
+
+	int	match_header, 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), pcre_regexp_extra(NULL),
+		pcre_vectors(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(ReMatch &, Buffer *);
+	void init_match_vars(const char *, int, int *, Buffer *);
+} ;
+#endif