Editing COMEFROM (section)

==History==
<code>COMEFROM</code> was initially seen in lists of joke [[assembly language]] instructions (as 'CMFRM'). It was elaborated upon in a [[Datamation]] article by [[R. Lawrence Clark]] in 1973,<ref>{{Citation |url= http://www.fortran.com/fortran/come_from.html |last= Clarke |first= Lawrence |author-link= R. Lawrence Clark |title= We don't know where to GOTO if we don't know where we've COME FROM. This linguistic innovation lives up to all expectations. |journal= [[Datamation]] |type= article |access-date= 2004-09-24 |archive-url= https://web.archive.org/web/20180716171336/http://www.fortran.com/fortran/come_from.html |archive-date= 2018-07-16 |url-status= dead }}.</ref> written in response to [[Edsger Dijkstra]]'s letter ''[[Go To Statement Considered Harmful]]''. COMEFROM was eventually implemented in the C-INTERCAL variant of the [[esoteric programming language]] [[INTERCAL]] along with the even more obscure 'computed <code>COMEFROM</code>'. There were also [[Fortran]] proposals<ref>{{Cite journal |url= http://www.modell.com/Magery/SPharmful.html |last= Modell |first= Howard |last2= Slater |first2= William |title= Structured programming considered harmful |date= April 1978 |journal= ACM SIGPLAN Notices |volume=13 |issue= 4 |pages= 76–79 |doi= 10.1145/953411.953418 |access-date= 18 July 2014|doi-access= free }}</ref> for 'assigned <code>COME FROM</code>' and a '<code>DONT</code>' keyword (to complement the existing '<code>DO</code>' loop).

{{Anchor|PythonGoto}}On 1 April 2004, [[Richie Hindle]] published an implementation of both <code>GOTO</code> and <code>COMEFROM</code> for the [[Python programming language]].<ref name=":0">{{Citation|last=Hindle|first=Richie|title=goto for Python|date=1 April 2004|url=http://entrian.com/goto/|publisher=Entrian}}.</ref> Despite being released on [[April Fools' Day]] and not being intended for serious use, the syntax is valid and the implementation fully works.