Editing Modula-3 (section)

===Exceptions===
[[Exception handling]] is based on a <code>TRY</code>...<code>EXCEPT</code> block system, which has since{{citation needed|date=March 2014}} become common.  One feature that has not been adopted in other languages{{citation needed|date=March 2014}}, with the notable exceptions of [[Delphi (programming language)|Delphi]], [[Python (programming language)|Python]][https://www.python.org/doc/faq/general/#why-was-python-created-in-the-first-place], [[Scala (programming language)|Scala]][http://scala.epfl.ch] and [[Visual Basic.NET]], is that the <code>EXCEPT</code> construct defined a form of [[switch statement]] with each possible exception as a case in its own EXCEPT clause. Modula-3 also supports a <code>LOOP</code>...<code>EXIT</code>...<code>END</code> construct that loops until an <code>EXIT</code> occurs, a structure equivalent to a simple loop inside a <code>TRY</code>...<code>EXCEPT</code> clause.