In [[meta programming with concrete object syntax]] the transitions from the meta language to the object language and vice versa are marked by special constructors: [[meta transition markers]]. [[meta explode]] uses these constructors to determine the object fragments in the abstract syntax tree that have to be exploded to the meta language.

For the embedding of an object language in Stratego the following markers are used:

	* quotation: denoting a transition from the _meta_ language to the _object_ language.
		* =ToTerm=
		* =ToStrategy=
		* =ToBuild= denoting =!t=

	* antiquotation: denoting a transition from the _object_ language to the _meta_ language.
		* =FromTerm=
		* =FromStrategy=
		* =FromApp= denoting =<s>=