+redef class AugmentedStringFormExpr
+ # Factorize the making of a `Regex` object from a literal prefixed string
+ protected fun make_re(v: AbstractCompilerVisitor, rs: RuntimeVariable): nullable RuntimeVariable do
+ var re = to_re
+ assert re != null
+ var res = v.compile_callsite(re, [rs])
+ if res == null then
+ print "Cannot call property `to_re` on {self}"
+ abort
+ end
+ for i in suffix.chars do
+ if i == 'i' then
+ var ign = ignore_case
+ assert ign != null
+ v.compile_callsite(ign, [res, v.bool_instance(true)])
+ continue
+ end
+ if i == 'm' then
+ var nl = newline
+ assert nl != null
+ v.compile_callsite(nl, [res, v.bool_instance(true)])
+ continue
+ end
+ if i == 'b' then
+ var ext = extended
+ assert ext != null
+ v.compile_callsite(ext, [res, v.bool_instance(false)])
+ continue
+ end
+ # Should not happen, this needs to be updated
+ # along with the addition of new suffixes
+ abort
+ end
+ return res
+ end
+end
+