+ Spacing() : space(Default), value("1.0") {}
+ ///
+ Spacing(Spacing::Space sp, double val = 1.0) {
+ set(sp, val);
+ }
+ Spacing(Spacing::Space sp, std::string const & val) {
+ set(sp, val);
+ }
+ ///
+ bool isDefault() const {
+ return space == Default;