handle escaped spaces in tokens + filepaths in completions

util/shell_complete.go

@@ -80,7 +80,8 @@ func ShellCompleter(line string, vt ast.VarTable, ft ast.FuncTable) []string {
     completions := []string{}
     for _, i := range compSource {
         if strings.HasPrefix(i, tail) {
-            completions = append(completions, head + i)
+            str := strings.ReplaceAll(i, " ", "\\ ")
+            completions = append(completions, head + str)
         }
     }