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Tom Anderson tomwhoiscontrary

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tomwhoiscontrary / Class1.java
Last active Feb 16, 2021
Some code in need of good names
View Class1.java
public class Class1 {
public static <Type1, Type2 extends Collection<Type1>> Type2 method(Supplier<Type2> parameter1, Collection<Type1> parameter2, Collection<Type1> parameter3) {
Type2 variable = Stream.concat(parameter2.stream()
.filter(Predicate.not(parameter3::contains)),
parameter3.stream()
.filter(Predicate.not(parameter2::contains)))
.collect(Collectors.toCollection(parameter1));
return variable;
}
@tomwhoiscontrary
tomwhoiscontrary / Foo.java
Created Jan 20, 2021
A function that does something with streams ... but what?
View Foo.java
class Foo {
public static <T> Function<T, Stream<T>> foo(Predicate<T> predicate) {
return new Function<>() {
private T previous;
@Override
public Stream<T> apply(T current) {
if (predicate.test(current)) {
if (previous != null) {
T previous = this.previous;
View ParseTest.java
import jakarta.json.JsonObject;
import jakarta.json.spi.JsonProvider;
import jakarta.json.stream.JsonParser;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
public class ParseTest {
View ThresholdMap.java
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.awt.image.WritableRaster;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;
@tomwhoiscontrary
tomwhoiscontrary / summarise-shorts.py
Created Dec 13, 2020
a python script to roughly tabulate the Sci-Fi London 2020 short films programme from a downloaded copy of the webpage
View summarise-shorts.py
#! /usr/bin/env python3
import html.parser
import contextlib
import re
import csv
text_pattern = re.compile(r'([A-Z ()&!0-9]+) \(([^)]+)\) (.*)')
meta_pattern = re.compile(r'Dir: ([^,]+),? ([A-Za-z ]+), ([^0-9]+), ([0-9]+) ?mins?.?')
@tomwhoiscontrary
tomwhoiscontrary / Transducers.java
Created Oct 23, 2020
I wasted most of a day trying to copy Clojure's transducers in Java. It works, as far as it goes, and it's more extensible than native streams. No short-circuiting operations though!
View Transducers.java
import org.junit.jupiter.api.Test;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Optional;
import java.util.Set;
@tomwhoiscontrary
tomwhoiscontrary / 1. fsck the boot partition
Last active Aug 13, 2020
Fixing MacBook Fedora boot partition again
View 1. fsck the boot partition
[liveuser@localhost-live ~]$ sudo fsck /dev/sda1
We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:
#1) Respect the privacy of others.
#2) Think before you type.
#3) With great power comes great responsibility.
fsck from util-linux 2.35.1
@tomwhoiscontrary
tomwhoiscontrary / constant_tzinfo.py
Created May 5, 2020
A minimal but i believe correct implementation of Python's tzinfo for constant offsets - there is absolutely no excuse for this not being in the standard library!
View constant_tzinfo.py
class constant_tzinfo(datetime.tzinfo):
def __init__(self, offset_mins): self.offset_mins = offset_mins
def utcoffset(self, dt): return datetime.timedelta(minutes=self.offset_mins)
def dst(self, dt): return None
def tzname(self, dt): return '%+03d:%02d' % (int(self.offset_mins / 60.0), abs(self.offset_mins) % 60)
@tomwhoiscontrary
tomwhoiscontrary / venvexec.sh
Created Feb 18, 2020
My super sweet Python run-module-in-a-venv script
View venvexec.sh
#! /bin/bash -eu
shopt -s failglob
force=
while getopts "f" flag
do
case $flag in
f) force=y ;;
esac
done
@tomwhoiscontrary
tomwhoiscontrary / console.txt
Created Feb 18, 2020
The incredible self-destructing pip
View console.txt
$ python3 --version
Python 3.4.5
$ python3 -m venv myenv
$ cd myenv
$ bin/pip install requests
Collecting requests
Using cached https://files.pythonhosted.org/packages/51/bd/23c926cd341ea6b7dd0b2a00aba99ae0f828be89d72b2190f27c11d4b7fb/requests-2.22.0-py2.py3-none-any.whl
Collecting urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 (from requests)
Using cached https://files.pythonhosted.org/packages/e8/74/6e4f91745020f967d09332bb2b8b9b10090957334692eb88ea4afe91b77f/urllib3-1.25.8-py2.py3-none-any.whl
Collecting idna<2.9,>=2.5 (from requests)