Split the picks and the name fences out of name.go, state the repeat refusal and the naming rule where they hold, and draw a memo's variants one way

table.go

@@ -323,7 +323,7 @@ func (t *table) compileRowFormat(format string) error {
 	if err != nil {
 		return err
 	}
-	if err := checkTableToks(toks, nil); err != nil {
+	if err := refuseTableBinding(toks); err != nil {
 		return err
 	}
 	for _, tok := range toks {
@@ -345,25 +345,21 @@ func (t *table) compileRowFormat(format string) error {
 	if err != nil {
 		return err
 	}
-	if err := checkTableToks(nil, unbound); err != nil {
-		return err
+	if len(unbound) > 0 {
+		return unbound[0].err
 	}
 	t.formatTemplate = &template{format: format, tokens: toks, fields: fields, repeat: 1, isRecord: true, site: tableSite{t, formatRow}}
 	t.rowNode = &tableRow{t}
 	return nil
 }
 
-// checkTableToks refuses a table's format or cell binding a name, or reading a head no column
-// holds: a table holds no names.
-func checkTableToks(toks []formatToken, unbound []unboundRead) error {
+// refuseTableBinding refuses a table's format or cell binding a name.
+func refuseTableBinding(toks []formatToken) error {
 	for _, tok := range toks {
 		if tok.kind == nameBind {
 			return fmt.Errorf("token {%s}: a table binds no name; bind it in a template reading the table", tok.body)
 		}
 	}
-	if len(unbound) > 0 {
-		return unbound[0].err
-	}
 	return nil
 }