--- parser3/src/include/pa_string.h	2001/03/25 08:52:34	1.52
+++ parser3/src/include/pa_string.h	2001/04/03 05:23:40	1.62
@@ -5,7 +5,7 @@
 
 	Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
 
-	$Id: pa_string.h,v 1.52 2001/03/25 08:52:34 paf Exp $
+	$Id: pa_string.h,v 1.62 2001/04/03 05:23:40 paf Exp $
 */
 
 #ifndef PA_STRING_H
@@ -31,30 +31,28 @@
 		const char *src, size_t size,  \
 		String::Untaint_lang lang, \
 		const char *file, uint line
-/// appends clean piece to String  @see String::real_append
-#	define APPEND(src, size, file, line) \
-	real_append(src, size, String::UL_NO, file, line)
-/// appends tainted piece to String  @see String::real_append
-#	define APPEND_TAINTED(src, size, file, line) \
-	real_append(src, size, String::UL_YES, file, line)
-#	define APPEND_SPECIFIC_TAINTED(src, size, lang, file, line) \
-	real_append(src, size, lang, file, line)
+/// appends piece to String  @see String::real_append
+#	define APPEND(src, size, lang, file, line) \
+		real_append(src, size, lang, file, line)
 #else
 #	define STRING_APPEND_PARAMS \
 		const char *src, \
 		size_t size, \
 		String::Untaint_lang lang
+/// appends piece to String  @see String::real_append
+#	define APPEND(src, size, lang, file, line) \
+		real_append(src, size, lang)
+#endif
 /// appends clean piece to String  @see String::real_append
-#	define APPEND(src, size, file, line) \
-	real_append(src, size, String::UL_NO)
+#define APPEND_CLEAN(src, size, file, line) \
+	APPEND(src, size, String::UL_CLEAN, file, line)
 /// appends tainted piece to String  @see String::real_append
-#	define APPEND_TAINTED(src, size, file, line) \
-	real_append(src, size, String::UL_YES)
-#	define APPEND_SPECIFIC_TAINTED(src, size, lang, file, line) \
-	real_append(src, size, lang)
-#endif
+#define APPEND_TAINTED(src, size, file, line) \
+	APPEND(src, size, String::UL_TAINTED, file, line)
 /// handy: appends const char* piece to String  @see String::real_append
-#define	APPEND_CONST(src) APPEND(src, 0, 0, 0)
+#define	APPEND_CONST(src) APPEND_CLEAN(src, 0, 0, 0)
+
+class Array;
 
 /** 
 	Pooled string.
@@ -86,9 +84,9 @@ public:
 
 	/// piece is tainted or not. the language to use when detaint 
 	enum Untaint_lang {
-		UL_UNKNOWN=0, ///< when get by name fails
-		UL_NO, ///< clean
-		UL_YES,  ///< tainted, untaint language as assigned later 
+		UL_UNKNOWN=0, ///< zero value handy for hash lookup @see untaint_lang_name2enum
+		UL_CLEAN, ///< clean
+		UL_TAINTED,  ///< tainted, untaint language as assigned later 
 		// untaint languages. assigned by ^untaint[lang]{...}
 		UL_PASS_APPENDED,
 			/**<
@@ -119,21 +117,22 @@ public:
 		return result;
 	}
 	/** append fragment
-		@see APPEND, APPEND_TAINTED, APPEND_CONST
+		@see APPEND_CLEAN, APPEND_TAINTED, APPEND_CONST
 	*/
 	String& real_append(STRING_APPEND_PARAMS);
 	/// @return <0 ==0 or >0 depending on comparison result
-	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; }
+	int cmp (int& partial, const String& src, 
+		size_t this_offset=0, Untaint_lang lang=UL_UNKNOWN) const;
+	bool operator < (const String& src) const {	int p; return cmp(p, src)<0; }
+	bool operator > (const String& src) const {	int p; return cmp(p, src)>0; }
+	bool operator <= (const String& src) const { int p; return cmp(p, src)<=0; }
+	bool operator >= (const String& src) const { int p; return cmp(p, src)>=0; }
 	bool operator == (const String& src) const {
 		if(size()!=src.size()) // can speed up in trivial case
 			return false;
-		return cmp(src)==0;
+		int p; return cmp(p, src)==0;
 	}
-	bool operator != (const String& src) const { return cmp(src)!=0; }
+	bool operator != (const String& src) const { int p; return cmp(p, src)!=0; }
 
 	/**
 		 @param partial 
@@ -143,13 +142,14 @@ public:
 			-  1: means @c this starts @c src
 			-  2: means @src starts @this
 	*/
-	int cmp(const char* src_ptr, int& partial, size_t src_size=0) const;
+	int cmp(int& partial, const char* src_ptr, size_t src_size=0, 
+		size_t this_offset=0, Untaint_lang lang=UL_UNKNOWN) const;
 	bool operator == (const char* src_ptr) const { 
 		size_t src_size=src_ptr?strlen(src_ptr):0;
 		if(size() != src_size)
 			return false;
 		int partial; // unused
-		return cmp(src_ptr, partial, src_size)==0; 
+		return cmp(partial, src_ptr, src_size)==0; 
 	}
 
 	/** 
@@ -163,6 +163,26 @@ public:
 	/// simple hash code of string. used by Hash
 	uint hash_code() const;
 
+	/// extracts [start, finish) piece of string
+	String& piece(size_t start, size_t finish) const;
+
+	/// @return position of substr in string, -1 means "not found" [String version]
+	int pos(const String& substr, 
+		size_t this_offset=0, Untaint_lang lang=UL_UNKNOWN) const;
+	/// @return position of substr in string, -1 means "not found" [const char* version]
+	int pos(const char *substr, size_t substr_size, 
+		size_t this_offset=0, Untaint_lang lang=UL_UNKNOWN) const;
+
+	void split(Array& result, 
+		size_t *pos_after_ref, 
+		const char *delim, size_t delim_size, 
+		Untaint_lang lang, int limit=-1) const;
+	void split(Array& result, 
+		size_t *pos_after_ref, 
+		const String& delim, 
+		Untaint_lang lang, int limit=-1) const;
+
+
 #ifndef NO_STRING_ORIGIN
 	/// origin of string. calculated by first row
 	const Origin& origin() const;
@@ -172,7 +192,7 @@ private:
 
 	struct Chunk {
 		// the number of rows in chunk
-		int count;
+		size_t count;
 		union Row {
 			// fragment
 			struct { 
@@ -213,7 +233,6 @@ private:
 		return append_here == link_row;
 	}
 	void expand();
-	void set_lang(Chunk::Row *row, Untaint_lang lang, bool forced, size_t size);
 	char *String::store_to(char *dest) const;
 
 private: //disabled