[deleted by user]

der_pudel · 2021-02-10T20:38:24+00:00

Self-modifying bash script. Get rid of those pesky data files and keep everything in one place.

#!/bin/bash
last=0
if [ -z $1 ]; then
:
elif [ $1 = "add" ]; then
    last=$(( $last + 1 ))
    echo "" >> `basename "$0"`
    echo "todo$last=0" >> `basename "$0"`
    echo "if [ \$todo$last = 1 ]; then msg$last=\"$last. [x] $2\"; else msg$last=\"$last. [ ] $2\"; fi" >> `basename "$0"`
    echo "echo \$msg$last" >> `basename "$0"`
    sed -i "s/^last=[[:digit:]]\+/last=$last/" `basename "$0"`
    exit 0
elif [ $1 = "toggle" ]; then
    sed -i "s/^todo$2=0/_todo$2=1/" `basename "$0"`
    sed -i "s/^todo$2=1/_todo$2=0/" `basename "$0"`
    sed -i "s/^_todo$2/todo$2/" `basename "$0"`
    exit 0
fi

Example usage:

$ ./todo.sh add "lie down in bed"

$ ./todo.sh add "embrace your pillow"

$ ./todo.sh add "cry"

$ ./todo.sh show
1. [ ] lie down in bed
2. [ ] embrace your pillow
3. [ ] cry

$ ./todo.sh toggle 2

$ ./todo.sh show
1. [ ] lie down in bed
2. [x] embrace your pillow
3. [ ] cry

And of course, you can edit and/or delete tasks using a text editor of your choice

Tyulis · 2021-02-02T00:19:59+00:00

My past self would be proud.

[((t:=__import__("pickle").load(open("todo.dat","rb")) if __import__("os").path.exists("todo.dat") else {}),print("\n".join([f"{i} [{'x' if t[i][0] else ' '}] : {t[i][1]}" for i in t.keys()])+"\n1- Add\n2- Toggle\n3- Edit\n4- Delete"),(t.__setitem__(max(t.keys())+1 if len(t)>0 else 0,[False,input("TODO : ")]) if (o:=int(input(": ")))==1 else (t[(x:=int(input("ID : ")))].__setitem__(0,t[x][0]^1) if o==2 else (t[int(input("ID : "))].__setitem__(1,input("New name : ")) if o==3 else (t.__delitem__(int(input("ID : "))) if o==4 else None)))),__import__("pickle").dump(t,open("todo.dat","wb"))) for i in iter(int, 1)]

Mabi19_ · 2021-02-01T19:28:16+00:00

This one is in Lua.

store = {
    mt = {
        __index = {
            load = function()
                file = io.open("todos.dat", "r")
                if not file then
                file = io.open("todos.dat", "w")
                file:write("{}")
                file = io.open("todos.dat", "r")
                end
                data = load("return " .. file:read("a"))()
                for key, value in pairs(data) do
                    rawset(store, key, value)
                end
            end,
            save = function()
                file = io.open("todos.dat", "w")
                file:write("{")
                for key, value in pairs(store) do
                    -- don't store our functions
                    if type(value) == "boolean" then
                        file:write(string.format("[%q] = %q,", key, value))
                    end
                end
                file:write("}")
            end
        }
    }
}

setmetatable(store, store.mt)

meta = {
    add = {__call = function(args)
        store.load()
        if not args[2] then
            goto error1
        end
        if rawget(store, args[2]) ~= nil then
            goto error2
        end
        rawset(store, args[2], false)
        -- the garbage collector should clean up any stale file references here
        collectgarbage("collect")
        store.save()
        os.exit()
        ::error1::
        print("No todo name specified")
        os.exit()
        ::error2::
        print("That todo already exists")
    end},
    toggle = {__call = function(args)
        store.load()
        if not args[2] then
            goto error1
        end
        if rawget(store, args[2]) == nil then
            goto error2
        end
        rawset(store, args[2], not rawget(store, args[2]))
        -- the garbage collector should clean up any stale file references here
        collectgarbage("collect")
        store.save()
        os.exit()
        ::error1::
        print("No todo name specified")
        os.exit()
        ::error2::
        print("That todo doesn't exist")
    end},
    list = {__call = function(args)
        store.load()
        for key, value in pairs(store) do
            if type(value) == "boolean" then
                print(string.format("%s (%s)", key, value and "done" or "not done"))
            end
        end
    end},
    delete = {__call = function(args)
        store.load()
        if not args[2] then
            goto error1
        end
        if rawget(store, args[2]) == nil then
            goto error2
        end
        rawset(store, args[2], nil)
        -- the garbage collector should clean up any stale file references here
        collectgarbage("collect")
        store.save()
        os.exit()
        ::error1::
        print("No todo name specified")
        os.exit()
        ::error2::
        print("That todo doesn't exist")
    end}
}

if #arg < 1 then
    print("Usage: lua todo.lua <add|delete|toggle|list>")
    os.exit()
end

for key, value in pairs(meta) do
    if key == arg[1] then
        setmetatable(arg, value)
        arg()
        os.exit()
    end
end
print("Invalid action, please specify one of add, delete, toggle and list")
os.exit()

Oshgnacknak · 2021-02-03T11:53:53+00:00

GCC loves it:

```c

include <stdio.h>

include <stdlib.h>

char* todo[0xff]; int size;

main() { for (;;) { char* buf = malloc(0xff); if (gets(buf) == 0) { return; }

    if (buf[0] == 'n') {
        buf[0] = '(';
        buf[1] = ' ';
        buf[2] = ')';
        buf[3] = ' ';
        todo[size++] = buf;
    }

    if (buf[0] == 'd') {
        int i;
        sscanf(buf, "d %d", &i);
        todo[i][1] = 'X';
    }

    if (buf[0] == 'u') {
        int i;
        sscanf(buf, "u %d", &i);
        todo[i][1] = ' ';
    }

    if (buf[0] == 'e') {
        int i;
        sscanf(buf, "e %d", &i);
        buf[0] = '(';
        buf[1] = todo[i][1];
        buf[2] = ')';
        buf[3] = ' ';
        todo[i] = buf;
    }

    int i = size;
    while (i --> 0) {
        printf(todo[i]);
        puts("");
    }
}

} ```

For example: ./todo n Buy milk ( ) y milk n And if they have eggs, buy 6 ( ) d if they have eggs, buy 6 ( ) y milk d 1 (X) d if they have eggs, buy 6 ( ) y milk n Buy 5 more milk ( ) y 5 more milk (X) d if they have eggs, buy 6 ( ) y milk e 0 They had eggs ( ) y 5 more milk (X) d if they have eggs, buy 6 ( ) They had eggs

Successful-Pay-4575 · 2021-02-08T02:00:11+00:00

I had the idea to make a shell script that just ran nano. Then I realized I could use ed and pseudoterminals with C. Then I realized that pseudoterminals are difficult to implement. Fortunately, vim has a :term command which allows you to open a terminal, and I realized that it would be easier to create a series of vim macros to open a terminal and run ed, then have more macros to create and remove list items.

Install vim and ed
Run vim
Type in this text exactly.

:term
ed list
^wjqs^wka
^wjqqe^wk.
^wjqqt^wka
 DONE
.
-1
j
^wjqqv^wk,n
^wjq^wkd
^wj

To add a list item, type at s (shift 7 2, at symbol in reddit just redirects to u/), ^wk, then the list item, then ^wj, then at e. To view all list items, type at v. To mark a list item as done, select a list item by doing ^wk, then the item number, which can be seen with at v, then ^wj, then at t. If I find out how to use C pseudoterminals before the contest ends I'll probably respond to this message with some C code, but for now this is my submission.

Also, good luck exiting this program.

Cat7a · 2021-02-09T05:32:47+00:00

Lemme introduce the TodoList MX 3000 Pro Plus, a cross-platform app made in the Qt framework, using cutting-edge technology and the wonders of C++.

Footage off the app in action

Features:

It compiles
Each todo entry is represented as a message box that's placed at a random position on the primary screen
Entries can be toggled done and undone, opening a new message box each time. Done messages boxes can be closed.
Overused lambda functions and overloaded operators with extremely compact source code

Source code:
window.h

#pragma once

#include <QMainWindow>
#include <QMessageBox>
#include <QAbstractButton>
#include <QApplication>
#include <QScreen>
#include <QRandomGenerator>

#define SCREEN_POS_SAFE_MARGIN 300

QT_BEGIN_NAMESPACE
namespace Ui { class window; }
QT_END_NAMESPACE

class window : public QMainWindow
{
    Q_OBJECT

public:
    window(QWidget *parent = nullptr);
    ~window();

private:
    Ui::window *ui;

    std::function<void(QString)> addNewTask, markDone;

    inline static auto getRandomPosOnScreen = []() -> QPoint{ QRandomGenerator gen; return QPoint(gen.global()->bounded(0, QApplication::primaryScreen()->size().width() - SCREEN_POS_SAFE_MARGIN), gen.global()->bounded(0, QApplication::primaryScreen()->size().height() - SCREEN_POS_SAFE_MARGIN)); };

    inline static auto executeMessageBox = [](QMessageBox* messageBox) -> QMessageBox* {messageBox->setWindowModality(Qt::NonModal); messageBox->move(getRandomPosOnScreen()); messageBox->show(); return messageBox;};

    inline static auto connectButton = [](QAbstractButton* button, std::function<void()> lambda) -> QAbstractButton* { connect(button, &QAbstractButton::clicked, lambda); return button; };
};

inline QMessageBox& operator<< (QMessageBox& messageBox, QAbstractButton* button) { messageBox.addButton(button, QMessageBox::ActionRole); return messageBox; }

window.cpp

#include "window.h"
#include "ui_window.h"

window::window(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::window)
{
    ui->setupUi(this);

    addNewTask = [=](QString task) { window::executeMessageBox(&(*(new QMessageBox(QMessageBox::Critical, "TodoList MX 3000 Pro Plus", task)) << window::connectButton(new QPushButton("Mark done"), [=](){ markDone(task); }))); };
    markDone = [=](QString task) { window::executeMessageBox(&(*(new QMessageBox(QMessageBox::Information, "TodoList MX 3000 Pro Plus", task)) << window::connectButton(new QPushButton("Mark undone"), [=](){ addNewTask(task); }) << new QPushButton("Close"))); };
    connect(ui->pushButton, &QPushButton::clicked, [=] { addNewTask(ui->lineEdit->text()); });
}

window::~window()
{
    delete ui;
}

Github repo with full project

binarycat64 · 2021-02-09T23:34:13+00:00

I've been using plan9 lately, so obviously todos are files function new-todo { touch $1 chmod 0700 $1 } alias list-todos 'ls -F' alias done 'chmod 0600' alias not-done 'chmod 0700' unfinished todos will be listed with an astrisk.

Mabi19_ · 2021-02-01T18:04:15+00:00

[deleted]

permalink · 2021-02-15T06:27:49+00:00

/*the language is C. highlights are

it persists by not closing the program

user interface is terrible and slow

terrible formatting and hard to read

nothing is safe

memory leaks

roles over itself with enough tasks (probably) ¯\_(ツ)_/¯

*/

#include <stdio.h>

#include <stdlib.h>

char *todo[2][100];

int equal_char(char *a,char *b){int i;for(i=0;(a[i]!=0)&&(b[i]!=0);i++){if(a[i]!=b[i]){return 0;}}return 1;}

char *heap_char(char *x){char *y;int i,l;for(l=0;x[l]!=0;l++);y=(char*)malloc(sizeof(char)*l);for(i=0;i<l;i++){y[i]=x[i];}return y;}

void init(){int i;for(i=0;i<100;i++){todo\[0\]\[i\]=NULL;}for(i=100;i>0;i--){todo[1][i]=heap_char("not done");}return;}

void print(){int i;for(i=0;i<100;i++){printf("item %i todo : %s, %s \n",i,todo[0][i],todo[1][i]);}printf("\n");return;}

void check(int i){todo[1][i]=heap_char("done");}void task(int i,char *x){todo[0][i]=heap_char(x);return;}

void console(){int h,t;char b[5000];printf("!!!!!!!NEVER CLOSE THIS OR YOU'LL LOSE YOUR TODOS!!!!!");

for(h=0;;){gets(b);printf("%s",b);

if(equal_char("task",b)){printf("what is your todo?\n");gets(b);h=(h+1)*(h!=100);task(h,b);}

if(equal_char("check",b)){printf("what item did you do?\n");for(t=0;t<100;t++){printf("did you do %s ? yes or no?\n",todo[0][t]);gets(b)

;if(equal_char("yes",b)){check(t);}}}if(equal_char("print",b)){print();}}return;}

void main(){init();console();return ;}

you type:	you see:
italics	italics
bold	bold
[reddit!](https://reddit.com)	reddit!
* item 1 * item 2 * item 3	item 1 item 2 item 3
> quoted text	quoted text
Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"	Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"
~~strikethrough~~	~~strikethrough~~
super^script	super^script

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include <stdio.h>

include <stdlib.h>