@anyid@
type t;
identifier id;
constant cst;
fresh identifier new = id ## "_is_constant";
@@

t id = cst;
+t new;

@contains@
type t;
identifier anyid.id;
constant anyid.cst ~= ".*FOO";
fresh identifier contains = id ##"_equals_cst_that_contains_FOO";
@@

t id = cst;
+t contains;

@nocontain@
type t;
identifier anyid.id;
constant anyid.cst !~= ".*FOO";
fresh identifier nocontain = id ##"_equals_cst_that_doesn_t_contain_FOO";
@@

t id = cst;
+t nocontain;

@endsby@
type t;
identifier anyid.id;
constant anyid.cst ~= ".*FOO$";
fresh identifier endsby = id ##"_equals_cst_that_ends_by_FOO";
@@

t id = cst;
+t endsby;

@beginsby@
type t;
identifier anyid.id;
constant anyid.cst ~= "^FOO";
fresh identifier beginsby = id ##"_equals_cst_that_begins_by_FOO";
@@

t id = cst;
+t beginsby;