On: History of John Backus's functional programming project (draft)

[pmcjones]

Can we move this conversation to email? I am not sure what diagrams you are referring to.

[metazip → pmcjones]

https://github.com/pointfreewiki/pointfreewiki.github.io/iss...

[metazip → pmcjones]

https://github.com/pointfreewiki/pointfreewiki.github.io/iss...

[pmcjones → metazip]

In that first diagram (https://softwarepreservation.computerhistory.org/FP/Composin...), A and B are supposed to be pure functional programs; side-effects are modeled by each one outputting a new version of each modified input. In the second diagram (https://softwarepreservation.computerhistory.org/FP/Strict_H...), as actually implemented in FL, they stick to strictly leftmost-innermost evaluation order so that side-effects are at consistent (but this presumably prevents parallel evaluation).

[metazip → pmcjones]

some Plasm files https://github.com/metazip/plasmfiles/blob/main/Function-Lev...