diff --git a/file/error.go b/file/error.go
index 4aed323..cfdb853 100644
--- a/file/error.go
+++ b/file/error.go
@@ -12,7 +12,6 @@ const (
 
 type Error struct {
 	Location
-	width   int
 	message string
 	kind    ErrorKind
 }
@@ -20,7 +19,6 @@ type Error struct {
 // NewError creates a new error at the specified location.
 func NewError (
 	location Location,
-	width int,
 	message string,
 	kind ErrorKind,
 ) (
@@ -28,7 +26,6 @@ func NewError (
 ) {
 	return &Error {
 		Location: location,
-		width:    width,
 		message:  message,
 		kind:     kind,
 	}
diff --git a/file/file.go b/file/file.go
index 557be39..bbaaca8 100644
--- a/file/file.go
+++ b/file/file.go
@@ -108,5 +108,6 @@ func (file *File) Location () (location Location) {
 		file:   file,
 		row:    file.currentLine,
 		column: file.currentColumn,
+		width:  1,
 	}
 }
diff --git a/file/location.go b/file/location.go
index acc65cf..e20abb5 100644
--- a/file/location.go
+++ b/file/location.go
@@ -6,4 +6,5 @@ type Location struct {
 	file   *File
 	row    int
 	column int
+	width  int
 }
diff --git a/lexer/lexer.go b/lexer/lexer.go
index 4e75732..fac177e 100644
--- a/lexer/lexer.go
+++ b/lexer/lexer.go
@@ -35,7 +35,7 @@ func (lexer *LexingOperation) tokenize () (err error) {
 		
 		if err != nil || shebangCheck[index] != lexer.char {
 			err = file.NewError (
-				lexer.file.Location(), 1,
+				lexer.file.Location(),
 				"not an arf file",
 				file.ErrorKindError)
 			return
@@ -119,7 +119,7 @@ func (lexer *LexingOperation) tokenizeSymbolBeginning () (err error) {
 			err = lexer.nextRune()
 			
 			file.NewError (
-				lexer.file.Location(), 1,
+				lexer.file.Location(),
 				"tab not used as indent",
 				file.ErrorKindWarn).Print()
 			return
@@ -272,7 +272,7 @@ func (lexer *LexingOperation) tokenizeSymbolBeginning () (err error) {
 		err = lexer.nextRune()
 	default:
 		err = file.NewError (
-			lexer.file.Location(), 1,
+			lexer.file.Location(),
 			"unexpected symbol character " +
 			string(lexer.char),
 			file.ErrorKindError)
@@ -334,7 +334,7 @@ func (lexer *LexingOperation) nextRune () (err error) {
 	lexer.char, _, err = lexer.file.ReadRune()
 	if err != nil && err != io.EOF {
 		return file.NewError (
-			lexer.file.Location(), 1,
+			lexer.file.Location(),
 			err.Error(), file.ErrorKindError)
 	}
 	return
diff --git a/lexer/numbers.go b/lexer/numbers.go
index c96f1c8..4414bc3 100644
--- a/lexer/numbers.go
+++ b/lexer/numbers.go
@@ -23,7 +23,7 @@ func (lexer *LexingOperation) tokenizeNumberBeginning (negative bool) (err error
 			number, fragment, isFloat, err = lexer.tokenizeNumber(8)
 		} else {
 			return file.NewError (
-				lexer.file.Location(), 1,
+				lexer.file.Location(),
 				"unexpected character in number literal",
 				file.ErrorKindError)
 		}
diff --git a/lexer/text.go b/lexer/text.go
index 9a2adb0..e2359e2 100644
--- a/lexer/text.go
+++ b/lexer/text.go
@@ -43,7 +43,7 @@ func (lexer *LexingOperation) tokenizeString (isRuneLiteral bool) (err error) {
 	if isRuneLiteral {
 		if len(got) > 1 {
 			err = file.NewError (
-				lexer.file.Location(), len(got) - 1,
+				lexer.file.Location(),
 				"excess data in rune literal",
 				file.ErrorKindError)
 			return
@@ -99,7 +99,7 @@ func (lexer *LexingOperation) getEscapeSequence () (result rune, err error) {
                 
                 if len(number) < 3 {
 			err = file.NewError (
-				lexer.file.Location(), 1,
+				lexer.file.Location(),
 				"octal escape sequence too short",
 				file.ErrorKindError)
 			return
@@ -133,7 +133,7 @@ func (lexer *LexingOperation) getEscapeSequence () (result rune, err error) {
                 
                 if len(number) < want {
 			err = file.NewError (
-				lexer.file.Location(), 1,
+				lexer.file.Location(),
 				"hex escape sequence too short ",
 				file.ErrorKindError)
 			return
@@ -143,7 +143,7 @@ func (lexer *LexingOperation) getEscapeSequence () (result rune, err error) {
                 result = rune(parsedNumber)
 	} else {
 		err = file.NewError (
-			lexer.file.Location(), 1,
+			lexer.file.Location(),
 			"unknown escape character " +
 			string(lexer.char), file.ErrorKindError)
 		return