add TerminalChomp() in honor of Larry Wall & Perl

termSize.go

@@ -1,9 +1,11 @@
 package cobol
 
 import (
-	"log"
 	"os"
+	"strings"
+	"unicode"
 
+	"go.wit.com/log"
 	"golang.org/x/term"
 )
 
@@ -31,7 +33,18 @@ func getTerminalWidth() (int, bool) {
 	return WIDTH, false
 }
 
-func TerminalCut(cut string) {
+// like the perl Chomp but with the terminal width
+func TerminalChomp(cut string) string {
 	i, _ := getTerminalWidth()
-	log.Printf("%s\n", cut[0:i])
+	// log.Info("cobol.TerminalCut() at ", i)
+
+	// TrimRightFunc removes all trailing runes r from the string s that satisfy f(r).
+	// unicode.IsSpace reports whether the rune is a space character.
+	cut = strings.TrimRightFunc(cut, unicode.IsSpace)
+
+	if i >= len(cut) {
+		return cut
+	} else {
+		return log.Sprintf("%s", cut[0:i])
+	}
 }