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apaz-cli / ceqexpr.c

Created June 3, 2023 15:41

ceqexpr

	ceqexpr <- rule:next
	(op:(EQ / PLEQ / MINEQ / MULEQ / DIVEQ / MODEQ / ANDEQ / OREQ / XOREQ / BNEQ / BSREQ / BSLEQ)
	t:next
	{
	if (op->kind == kind(EQ)) rule=repr(node(EQ, rule, t), op);
	else if (op->kind == kind(PLEQ)) rule=repr(node(EQ, rule, binop(repr(leaf(PLUS), op), rule, t)), op);
	else if (op->kind == kind(MINEQ)) rule=repr(node(EQ, rule, binop(repr(leaf(MINUS), op), rule, t)), op);
	else if (op->kind == kind(MULEQ)) rule=repr(node(EQ, rule, binop(repr(leaf(MUL), op), rule, t)), op);
	else if (op->kind == kind(DIVEQ)) rule=repr(node(EQ, rule, binop(repr(leaf(DIV), op), rule, t)), op);
	else if (op->kind == kind(MODEQ)) rule=repr(node(EQ, rule, binop(repr(leaf(MOD), op), rule, t)), op);

apaz-cli / findpython.sh

Created March 29, 2023 05:55

Find python version

	#!/bin/sh

	# Ask python and python3 for their versions, if present.
	if test $(which python); then
	PYV=$(python -c "import platform;print(platform.python_version())");
	fi
	if test $(which python3); then
	PY3V=$(python3 -c "import platform;print(platform.python_version())");
	fi

apaz-cli / sr.py

Created February 26, 2023 21:08

Search and Replace script


	# USAGE:
	# py sr.py <target> <output> (<search> <replace>)*

	import sys

	def fopen(fname):
	with open(fname, 'r') as file:
	return file.read()

apaz-cli / pl0_parser.c

Created February 26, 2023 21:07

Example parser using GNU label as value extensions

	#ifndef PL0_PARSER_INCLUDE
	#define PL0_PARSER_INCLUDE
	#include <stdio.h>
	#include <stdlib.h>
	#pragma clang diagnostic push
	#pragma clang diagnostic ignored "-Wgnu-label-as-value"


	/***********/
	/* Grammar */

apaz-cli / tui.h

Last active August 25, 2023 04:01

Tui API rough draft


	struct Event {
	bool handled;
	enum {END, RESIZE, MOUSE, KEY} kind;
	union {
	struct ResizeEvent {
	uint16_t new_width, new_height;
	};
	struct MouseEvent {
	uint16_t mouse_x, mouse_y;

apaz-cli / daisho_parse_fntype.c

Last active August 22, 2022 02:54

An example of the code generated by pgen.

	/*
	fntype <- FNTYPE
	LT
	argtypes:{ret=list(ARGLIST)}
	( t:type {add(argtypes, t)})?
	(COMMA t:type {add(argtypes, t)})*
	{if (!argtypes->num_children) add(argtypes, leaf(VOIDTYPE))}
	(arrow:ARROW rettype:type)?
	GT
	{rule=node(FNTYPE, argtypes, rettype!=SUCC ? rettype : leaf(VOIDTYPE))}

apaz-cli / asan_err.c

Last active August 22, 2022 20:57

Asan error

apaz-cli / Kaboom.c

Created August 5, 2022 19:02

The Halting Problem

	/*
	* The Halting Problem:
	* Does there exist an algorithm which can determine if any complete program
	* halts? Complete means that all information about the program must be known
	* beforehand.
	*
	*
	* The definition in computability theory for "Algorithm" is:
	* "A finite list of instructions which when carried out must
	* always terminate."

apaz-cli / bitmask_allocator.h

Created July 5, 2022 22:17

Efficient fixed size allocator

	#include <stdio.h>
	#include <stdint.h>
	#include <limits.h>
	#include <stdlib.h>
	#include <string.h>

	#define ALLOC_SIZE 128 // The size of the object to allocate
	#define PAGE_SIZE 4096 // OS page size (almost always 4096)
	#define NUM_PAGES 20 // The number of OS pages to reserve.
	#define ARENA_SIZE (PAGE_SIZE * NUM_PAGES) // The amout of memory to reserve.

apaz-cli / asciitable.c

Created June 11, 2022 21:03