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one more edge case for hyphens

--- a/format.go

+++ b/format.go

@@ -3,27 +3,26 @@

 import (

 	"strings"

-	//"github.com/chzyer/readline"

+	"github.com/chzyer/readline"

 )

 func hyphenate(input string) string {

 	width := readline.GetScreenWidth()

-	result, remainder := hyphenateline(input, width)

+	remainder := input

 	var cresult string

 	var result string

-	for len([]rune(remainder)) > width-1 {

+	for len([]rune(remainder)) > width-2 {

 		cresult, remainder = hyphenateline(remainder, width)

 		result += cresult

-		if len([]rune(cresult)) == width-1 {

-			if(!strings.HasSuffix(cresult, " ")) {

-			result += "-"

-			} else {

-				result += "\n"

-			}

-		}

-

-	}

+	    if len([]rune(cresult)) == width-1 {

+	        if !strings.HasSuffix(cresult, " ") && !strings.HasPrefix(remainder, " ") {

+	            result += "-"

+	        } else {

+	            result += "\n"

+        	}

+        }

+	}	

 	return result + remainder

 }

-- 

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