diff --git a/qse/README b/qse/README
index 0340abb1..cca8111f 100644
--- a/qse/README
+++ b/qse/README
@@ -5,5 +5,5 @@ The library is licended under the Apache License, Version 2.0.
 The project webpage: http://qse.googlecode.com/
 
 For furthur information, contact: 
-Chung, Hyung-Hwan <b a c o n e v i @ g m a i l . c o m>
+Chung, Hyung-Hwan <bacon@abiyo.net>
 
diff --git a/qse/doc/gendoc.sh b/qse/doc/gendoc.sh
index 21600544..8fb20d13 100755
--- a/qse/doc/gendoc.sh
+++ b/qse/doc/gendoc.sh
@@ -6,5 +6,15 @@ SED="../test/sed/sed01"
 	/^OUTPUT_DIRECTORY[[:space:]]*=/s/qse/qse.ko/
 	/^INPUT[[:space:]]*=/s/page/page.ko/' < Doxyfile > Doxyfile.ko
 
+#"${SED}" '/^OUTPUT_LANGUAGE[[:space:]]*=/s/English/Chinese/
+#	/^OUTPUT_DIRECTORY[[:space:]]*=/s/qse/qse.cn/
+#	/^INPUT[[:space:]]*=/s/page/page.cn/' < Doxyfile > Doxyfile.cn
+
+#"${SED}" '/^OUTPUT_LANGUAGE[[:space:]]*=/s/English/Japanese/
+#	/^OUTPUT_DIRECTORY[[:space:]]*=/s/qse/qse.ja/
+#	/^INPUT[[:space:]]*=/s/page/page.ja/' < Doxyfile > Doxyfile.ja
+
 doxygen Doxyfile
 doxygen Doxyfile.ko
+#doxygen Doxyfile.cn
+#doxygen Doxyfile.ja
diff --git a/qse/doc/page.ko/main.doc b/qse/doc/page.ko/main.doc
index ed2430d7..6958fbc0 100644
--- a/qse/doc/page.ko/main.doc
+++ b/qse/doc/page.ko/main.doc
@@ -9,7 +9,7 @@ QSE는 여러가지 스크립팅 언어처리기와 유틸리티들을 포함하
 프로젝트 홈페이지: http://qse.googlecode.com/
 
 더 많은 정보가 필요하면 
-정형환 <b a c o n @ a b i y o . n e t>
+정형환 <bacon@abiyo.net>
 에게 연락하세요.
 
 @section modules 구성요소
diff --git a/qse/doc/page/main.doc b/qse/doc/page/main.doc
index 01c48f62..a5f39d9b 100644
--- a/qse/doc/page/main.doc
+++ b/qse/doc/page/main.doc
@@ -9,7 +9,7 @@ The library is licended under the Apache License, Version 2.0.
 The project webpage: http://qse.googlecode.com/
 
 For furthur information, contact:
-Chung, Hyung-Hwan <b a c o n @ a b i y o . n e t>
+Chung, Hyung-Hwan <bacon@abiyo.net>
 
 @section INSTALLATION
 Cross compiling for WIN32 with MINGW32
diff --git a/qse/include/qse/sed/Sed.hpp b/qse/include/qse/sed/Sed.hpp
index 042d9d18..f19fd216 100644
--- a/qse/include/qse/sed/Sed.hpp
+++ b/qse/include/qse/sed/Sed.hpp
@@ -127,6 +127,21 @@ public:
 	 */
 	errnum_t getErrorNumber () const throw ();
 
+	/**
+	 * The getConsoleLine() function returns the current line
+	 * number from an input console. 
+	 * @return current line number
+	 */
+	size_t getConsoleLine () throw ();
+
+	/**
+	 * The setConsoleLine() function changes the current line
+	 * number from an input console. 
+	 */
+	void setConsoleLine (
+		size_t num ///< a line number
+	) throw ();
+
 protected:
 	/**
 	 * The IOBase class is a base class for IO operation. It wraps around
@@ -182,8 +197,9 @@ protected:
 		}
 
 	protected:
+		Sed*      sed;
 		io_arg_t* arg;
-		Mode mode;
+		Mode      mode;
 	};
 
 	/**
diff --git a/qse/include/qse/sed/sed.h b/qse/include/qse/sed/sed.h
index 298f407f..5da40e41 100644
--- a/qse/include/qse/sed/sed.h
+++ b/qse/include/qse/sed/sed.h
@@ -35,6 +35,10 @@
  * qse_sed_close (sed);
  * @endcode
  *
+ * @todo 
+ * - to allow flexible numbers of commands
+ * - to allow configurable recursion depth for a regular expression
+ *
  * @example sed01.c
  * This example shows how to embed a basic stream editor.
  */
@@ -320,6 +324,23 @@ int qse_sed_exec (
 	qse_sed_io_fun_t  outf  /**< stream writer */
 );
 
+/**
+ * The qse_sed_getlinnum() function gets the current input line number.
+ * @return current input line number
+ */
+qse_size_t qse_sed_getlinnum (
+	qse_sed_t* sed /**< a stream editor */
+);
+
+/**
+ * The qse_sed_setlinnum() function changes the current input line number.
+ * It affects the '=' command.
+ */
+void qse_sed_setlinnum (
+	qse_sed_t* sed,   /**< a stream editor */
+	qse_size_t num    /**< a line number */
+);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/qse/lib/sed/Sed.cpp b/qse/lib/sed/Sed.cpp
index 6d5b432d..280d9850 100644
--- a/qse/lib/sed/Sed.cpp
+++ b/qse/lib/sed/Sed.cpp
@@ -89,6 +89,18 @@ Sed::errnum_t Sed::getErrorNumber () const throw ()
 	return (sed == QSE_NULL)? QSE_SED_ENOERR: qse_sed_geterrnum (sed);
 }
 
+Sed::size_t Sed::getConsoleLine () throw ()
+{
+	QSE_ASSERT (sed != QSE_NULL);
+	return qse_sed_getlinnum (sed);
+}
+
+void Sed::setConsoleLine (size_t num) throw ()
+{
+	QSE_ASSERT (sed != QSE_NULL);
+	qse_sed_setlinnum (sed, num);
+}
+
 Sed::ssize_t Sed::xin (sed_t* s, io_cmd_t cmd, io_arg_t* arg) throw ()
 {
 	Sed* sed = *(Sed**)QSE_XTN(s);
diff --git a/qse/lib/sed/sed.c b/qse/lib/sed/sed.c
index f680f22c..407bcf7c 100644
--- a/qse/lib/sed/sed.c
+++ b/qse/lib/sed/sed.c
@@ -2642,3 +2642,13 @@ done3:
 	qse_map_fini (&sed->e.out.files);
 	return ret;
 }
+
+qse_size_t qse_sed_getlinenum (qse_sed_t* sed)
+{
+	return sed->e.in.num;
+}
+
+void qse_sed_setlinenum (qse_sed_t* sed, qse_size_t num)
+{
+	sed->e.in.num = num;
+}