See: <a href="/doc/reference/classes/ucalc.transformer/defaultruleset-=-[rule]/">DefaultRuleSet = [Rule]</a>, <a href="/doc/reference/patterns/introduction/whitespace/">Whitespace</a>, <a href="/doc/reference/classes/ucalc.rule/whitespacesensitive-=-[bool]/">WhitespaceSensitive = [bool]</a>, <a href="/doc/reference/classes/ucalc.rule/removed/whitespacesensitive/whitespacesensitive-bool/">WhitespaceSensitive(bool)</a>