Editing ALGOL 68 (section)

===Extension proposals from IFIP WG 2.1===
After the revision of the report, some extensions to the language have been proposed to widen the applicability:

* ''partial parametrisation'' (aka [[Currying#Motivation|Currying]]): creation of functions (with fewer parameters) by specification of some, but not all parameters for a call, e.g. a function logarithm of two parameters, base and argument, could be specialised to natural, binary or decadic log,<ref>{{cite journal |title=Partial Parametrization |url=https://archive.computerhistory.org/resources/text/algol/algol_bulletin/A37/P42.HTM |journal=ALGOL Bulletin |date=July 1974 |first1=C. H. |last1=Lindsey |issue=37 |pages=24–26 |access-date=2022-09-19}}</ref>
* ''module extension'': for support of external linkage,  two mechanisms were proposed, bottom-up ''definition modules'', a more powerful version of the facilities from [[ALGOL 68-R]] and top-down ''holes'', similar to the <code>ENVIRON</code> and <code>USING</code> clauses from [[ALGOL 68C]]<ref name="modules">{{cite journal |title=A Modules and Separate Compilation facility for ALGOL 68 |journal=ALGOL Bulletin |date=December 1978 |first1=C. H. |last1=Lindsey |last2=Boom |first2=H. J. |issue=43 |pages=19–53 |url=https://archive.computerhistory.org/resources/text/algol/algol_bulletin/A43/P32.HTM|access-date=2020-01-29 |doi=}} [https://dl.acm.org/doi/10.5555/1061751.1061757 Comments] [https://dl.acm.org/doi/10.5555/1061760.1061764 errata]</ref>
* ''mode parameters'': for implementation of limited parametrical polymorphism (most operations on data structures like lists, trees or other data containers can be specified without touching the pay load).<ref>{{cite journal |title=Modals |url=https://archive.computerhistory.org/resources/text/algol/algol_bulletin/A37/P43.HTM |journal=ALGOL Bulletin |date=July 1974 |first1=C. H. |last1=Lindsey |issue=37 |pages=26–29 |access-date=2022-09-19}}</ref>

So far, only partial parametrisation has been implemented, in Algol 68 Genie.