--- parser3/src/include/pa_string.h	2001/02/11 11:27:24	1.15
+++ parser3/src/include/pa_string.h	2001/03/07 09:29:53	1.26
@@ -1,17 +1,17 @@
 /*
-  $Id: pa_string.h,v 1.15 2001/02/11 11:27:24 paf Exp $
+  $Id: pa_string.h,v 1.26 2001/03/07 09:29:53 paf Exp $
 */
 
 /*
 
 	String				Chunk0
 	======				========
-	head--------->[ptr, size]
-	append_here-------->[ptr, size]
-	link_row      ........
-			.			.
-			.			[ptr, size]
-			...........>[link to the next chunk]
+	head--------------->[ptr, size, ...]
+	append_here-------->[ptr, size, ...]
+						.
+						.
+						[ptr, size, ...]
+	link_row----------->[link to the next chunk]
 
 */
 
@@ -28,12 +28,13 @@
 #include "pa_types.h"
 
 #ifndef NO_STRING_ORIGIN
-#	define STRING_APPEND_PARAMS const char *src, char *file, uint line
-#	define APPEND(src, file, line) real_append(src, file, line)
+#	define STRING_APPEND_PARAMS const char *src, size_t size, char *file, uint line
+#	define APPEND(src, size, file, line) real_append(src, size, file, line)
 #else
-#	define STRING_APPEND_PARAMS const char *src
-#	define APPEND(src, file, line) real_append(src)
+#	define STRING_APPEND_PARAMS const char *src, size_t size
+#	define APPEND(src, size, file, line) real_append(src, size)
 #endif
+#define	APPEND_CONST(src) APPEND(src, 0, 0, 0)
 
 class String : public Pooled {
 public:
@@ -50,7 +51,20 @@ public:
 	int used_rows() const { return fused_rows; }
 	char *cstr() const;
 	String& real_append(STRING_APPEND_PARAMS);
-	bool operator == (const String& src) const;
+	int cmp (const String& src) const;
+	bool operator < (const String& src) const {	return cmp(src)<0; }
+	bool operator > (const String& src) const {	return cmp(src)>0; }
+	bool operator <= (const String& src) const { return cmp(src)<=0; }
+	bool operator >= (const String& src) const { return cmp(src)>=0; }
+	bool operator == (const String& src) const {
+		if(size()!=src.size()) // can speed up in trivial case
+			return false;
+		return cmp(src)==0;
+	}
+	bool operator != (const String& src) const { return cmp(src)!=0; }
+
+	bool operator == (char* src) const;
+	String& operator += (const String& src);
 
 	uint hash_code() const;
 
@@ -83,8 +97,8 @@ private:
 	Chunk::Row *link_row;
 
 private:
-	// last chank allocated count
-	int curr_chunk_rows;
+	// last chunk
+	Chunk *last_chunk;
 
 	// string size
 	size_t fsize;
@@ -105,5 +119,4 @@ private: //disabled
 
 };
 
-
 #endif