add DeleteWord

document.go

@@ -1,8 +1,6 @@
 package prompt
 
 import (
-	"fmt"
-	"io/ioutil"
 	"sort"
 	"strings"
 	"unicode/utf8"
@@ -132,7 +130,6 @@ func (d *Document) FindStartOfPreviousWordWithSpace() int {
 func (d *Document) FindEndOfCurrentWordWithSpace() int {
 	// Reverse the text before the cursor, in order to do an efficient backwards search.
 	x := d.TextAfterCursor()
-	ioutil.WriteFile("/tmp/fff", []byte(fmt.Sprintf("[%s]", x)), 0644)
 	l := len(x)
 	appear := false
 	for i := 0; i < l; i++ {

key_bind_func.go

@@ -17,6 +17,11 @@ func DeleteChar(buf *Buffer) {
 	buf.Delete(1)
 }
 
+// DeleteWord Delete word before the cursor
+func DeleteWord(buf *Buffer) {
+	buf.DeleteBeforeCursor(len([]rune(buf.Document().TextBeforeCursor())) - buf.Document().FindStartOfPreviousWordWithSpace())
+}
+
 // DeleteBeforeChar Go to Backspace
 func DeleteBeforeChar(buf *Buffer) {
 	buf.DeleteBeforeCursor(1)
@@ -34,7 +39,6 @@ func GoLeftChar(buf *Buffer) {
 
 // GoRightWord Forward one word
 func GoRightWord(buf *Buffer) {
-	// fmt.Printf("%#v\n", buf.Document().FindEndOfCurrentWordWithSpace())
 	buf.CursorRight(buf.Document().FindEndOfCurrentWordWithSpace())
 }