shithub: pprolog

03738c67 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/06 17:23

Store the calling module in each goal, and fix a bug where unification could leave behind some bindings even though the unification failed.

a0eb2bb2 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/06 14:00

Change the output of the repl a lille bit

0c45e33c – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/06 13:45

Group clauses into predicates, and create all valid choicepoints at once. This is wastefull if one branch loops forever, but it is much nicer otherwise, since we know the choicepoints only gets created as long as their head is unifiable with the goal.

bdcc02a5 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/05 12:59

Turn integers and floats into seperate term types

44ab8a33 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/05 12:27

First step on modules. Still very very rough.

3f26a0f2 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/03 17:16

Make the goalstack global just like the choicestack

66a7040d – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/03 16:59

Add one global choicestack so we don't need to pass it around

7db38904 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/03 14:58

Start adding support for read_term and write_term

d8144752 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/02 18:01

Start work on input/output streams

8dd4f85c – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/02 13:55

Fix Throw(What) macro

be26a1ce – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/02 13:50

Begin work on set_prolog_flag/2 and current_prolog_flag/2

2bfb79be – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/02 12:59

Remove strings, and add a (currently not changable) flag 'double_quotes' which defines how double quoted strings are stored.

855fd0a5 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/01 16:39

Add standard error predicates

e5ab41fa – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/07/01 15:55

Add exceptions :) implement catch/3 and throw/1

329c6975 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 20:52

Start implementation of is/2

2c166a14 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 20:25

Remove = from examples now that it is in stdlib

1ca36700 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 19:53

Add length/2 and member/2

d5ac4148 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 19:48

Prettyprint lists for reals

85adea62 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 19:30

Allow the repl to backtrack to give alternative results

fa83d3f1 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 18:43

Add =../2

a106f8db – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 17:38

Add arg/3

afbd5688 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 17:17

Add functor/3

ff418c79 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 16:51

Add comparison predicates

a8b1fadd – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 15:33

Add builtins for typetests

baea4aa9 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 13:48

Add a standard library with the "builtins" that doesn't really need to be actual builtins

50f83a91 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 13:03

Add support for builtins, and implement true/0, fail/0, call/1, and !/0 builtins

347e5bc5 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 10:15

Give queries another id than clauses, so variable names doesn't clash

8fde6e48 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 10:04

Commit repl.c file

ee4298a2 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/30 10:04

Add a basic repl

79d1fe1c – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/29 22:05

Add todo

67e8b85a – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/29 22:01

Treat the variable _ differently, in that it doesn't introduce a new binding

2c3e688c – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/29 21:58

Add backtracking to the evaluator. This means we have to keep track of choicepoints which is implemented the easy but wasteful way for now.

d5ce41f0 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/29 20:07

Start work on an evaluator. For now it knows how to unify but doesn't know how to handle builtin predicates or how to backtrack

9799fbd9 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/29 14:46

Understand :-initialization(Goal) directive

a27a5c52 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/29 14:31

Add more operators

50768fba – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/29 14:21

Make parse return a list of clauses. Also pretty print the entire list of clauses.

64a411ed – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/29 13:58

Parse terms in parenthesis correctly

6ae2e2bb – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/29 13:51

Parse lists and {a,b,c} syntax (What is this even called?)

2d7f3ffa – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/29 12:38

Parse , and make xfy do what it should

8fdf0bc6 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/29 12:28

Fix some parser errors, and accept clauses without a body

02145f06 – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/29 11:51

Add a term parser.

0b36426d – Peter Mikkelsen <peter@pmikkelsen.com> authored on 2021/06/28 18:31

Initial commit. Start working on a new prolog implementation for 9front, now that I at least have a better understanding of what goes into a compiler :)