commit bc574ba0a42df5afb361d2ca972fe28dd8099990
Author: retoor <retoor@molodetz.nl>
Date:   Wed Dec 4 19:26:11 2024 +0100

    Initial commit. Old work.

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..1e239b2
--- /dev/null
+++ b/README.md
@@ -0,0 +1,18 @@
+# Rtutor
+
+Rtutor is an application written in python to train yourself to use vim fast way and to learn over 60 shortcuts! Features:
+ - Display question answered right / wrong statitiscs.
+ - Display AVG time spent to answer a question.
+ - Questions with random values to make it less boring.
+ - Repeat question on random moment if you answered it wrong. You have to learn!
+
+## Usage
+This application has no dependencies. Instead of cloning this git, you can just do wget or copy the raw source code of [rtutor.py](rtutor.py).
+```
+python3 rtutor.py
+```
+but since it's executable:
+```
+./rtutor.py
+```
+will also work.
diff --git a/rtutor.py b/rtutor.py
new file mode 100755
index 0000000..058929d
--- /dev/null
+++ b/rtutor.py
@@ -0,0 +1,308 @@
+#!/usr/bin/env python3
+
+# RETOOR
+
+import sys
+import termios
+import tty
+import random
+import time	
+import select
+
+key_mapping = {
+    "[A": "up",
+    "[B": "down",
+    "[C": "right",
+    "[D": "left",
+    "2A": "shift+up",
+    "2B": "shift+down",
+    "2C": "shift+right",
+    "2D": "shift+left",
+    "5A": "ctrl+up",
+    "5B": "ctrl+down",
+    "5C": "ctrl+right",
+    "5D": "ctrl+left",
+    "\x17": "C-w",
+    "\x0f": "C-o",
+    "\x03": "C-c",
+    "\x07": "C-g",
+}
+
+
+def get_key(key_previous=None):
+    fd = sys.stdin.fileno()
+    old_settings = termios.tcgetattr(fd)
+    special_char = "\x1b"
+    if key_previous is None:
+        key_previous = special_char
+    try:
+        tty.setraw(fd)
+        key = sys.stdin.read(1)
+        if key in key_mapping:
+            return key_mapping[key]
+        if key == "[":
+            key += sys.stdin.read(1)
+            if key in key_mapping:
+                return key_mapping.get(key, key)
+            if key[-1] == "1":  # shift plus special key
+                if sys.stdin.read(1) == ";":  # ;followed by key
+                    key = sys.stdin.read(2)
+                    return key_mapping.get(key, key)
+                if key == special_char:
+                    time.sleep(0.1)
+                    if sys.stdin in select.select([sys.stdin], [], [], 0)[0]:
+                        key += sys.stdin.read(2)
+                    key = key_mapping.get(key, key)
+
+    finally:
+        termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
+
+    return key
+
+
+def clear_terminal():
+    sys.stdout.write("\033[2J")
+    # Move cursor
+    sys.stdout.write("\033[H")
+    sys.stdout.flush()
+
+
+class Randoms:
+    
+    input_choices = list("abcdefghijklmnopqrstuvwxyz")
+    word_choices = word_list = [
+        "apple",
+        "banana",
+        "cherry",
+        "date",
+        "elderberry",
+        "fig",
+        "grape",
+        "honeydew",
+        "kiwi",
+        "lemon",
+        "mango",
+        "nectarine",
+        "orange",
+        "pear",
+        "quince",
+        "raspberry",
+        "strawberry",
+        "tangerine",
+        "ugli",
+        "vaccine",
+        "watermelon",
+        "xigua",
+        "yam",
+        "zucchini",
+    ]
+
+    def __init__(self):
+        self.replace = {}
+        self.replace["<randc1>"] = random.choice(self.input_choices)
+        self.replace["<randc2>"] = random.choice(self.input_choices)
+        self.replace["<randc3>"] = random.choice(self.input_choices)
+        self.replace["<rints1>"] = random.randint(2, 5)
+        self.replace["<rints2>"] = random.randint(2, 5)
+        self.replace["<rints3>"] = random.randint(2, 5)
+        self.replace["<w1>"] = random.choice(self.word_choices)
+        self.replace["<w2>"] = random.choice(self.word_choices)
+        self.replace["<w3>"] = random.choice(self.word_choices)
+
+    def apply(self, task):
+        task.question = task.base_question
+        task.keyboard_input = task.base_keyboard_input
+        for key, value in self.replace.items():
+            task.question = task.question.replace(key, str(value))
+            task.keyboard_input = task.keyboard_input.replace(
+                key, ",".join(list(str(value)))
+            )
+        task.applied_random = (
+            task.question != task.base_question
+            or task.keyboard_input != task.base_keyboard_input
+        )
+
+
+class Task:
+
+    questions_total = 0
+
+    def __init__(self, question, keyboard_input):
+        Task.questions_total += 1
+        self.question_number = Task.questions_total
+        self.base_question = question
+        self.base_keyboard_input = keyboard_input
+        self.question = question
+        self.keyboard_input = keyboard_input
+        self.success = False
+        self.tasks = []
+        self.applied_random = False
+        self.first_time_executed = True
+        r = Randoms()
+        r.apply(self)
+
+    def add_task(self, task):
+        self.tasks.append(task)
+
+    def execute(self):
+        if not self.first_time_executed:
+            r = Randoms()
+            r.apply(self)
+        self.first_time_executed = False
+        print("{}".format(self.question))
+        index = 0
+        mistake = False
+        key_previous = None
+        for expected in self.keyboard_input.split(","):
+            key = get_key(key_previous)
+            key_previous = key
+            if key == "\x1b":
+                key = get_key(key_previous)
+                key_previous = key
+            if key == "C-c":
+                raise KeyboardInterrupt()
+            if key == "\x17":
+                print("CTRL+W")
+            else:
+                print(key, end="", flush=True)
+            if expected == key:
+                index += 1
+            else:
+                mistake = True
+
+            if mistake:
+                print('\n"{}" is incorrect.'.format(repr(key)))
+                print(
+                    '\nExpected input: "{}".'.format(
+                        self.keyboard_input.replace(",", "")
+                    )
+                )
+                print("\nPress any key to continue...")
+                get_key(None)
+                break
+            if key == "q":
+                break
+        if not mistake:
+            self.success = True
+            print("")
+            print(
+                random.choice(
+                    ["Great!", "Excelent!", "Awesome!", "Keep it up!", "Perfect!"]
+                )
+            )
+            print("")
+            self.success = all([task.execute() for task in self.tasks])
+            time.sleep(0.40)
+        return self.success
+
+
+tasks = [
+    Task("Open terminal\n", ":,terminal,\r"),
+    Task("Delete from the cursor to the end of the word.", "d,e"),
+    Task("Delete from the cursor to the end of the line.", "d,$"),
+    Task("Delete from the cursor to the beginning of the next word.", "d,w"),
+    Task("Delete <rints1> lines using a numeric value.", "<rints1>,d,d"),
+    Task("Move backward in the search results.", "N"),
+    Task("Move forward in the search results.", "n"),
+    Task("Move to line number <rints1>.", "<rints1>,G"),
+    Task("Undo all changes on the current line.", "U"),
+    Task("Move to the end of the word.", "e"),
+    Task("Move to the beginning of the line.", "0"),
+    Task("Search backward for <w1>.", ":,?,<w1>,\r"),
+    Task("Search forward for <w1>.", ":,/,<w1>,\r"),
+    Task("Display the current location in the status bar.", "C-g"),
+    Task("Indent the selected text.", ">,>"),
+    Task("De-indent the selected text.", "<,<"),
+    Task("Save the document as <w1>.py.", ":,w, ,<w1>,.,p,y,\r"),
+    Task("Replace the first occurrence of <w1> with <w2>.", ":,s,/,<w1>,/,<w2>,/,g"),
+    Task(
+        "Replace all occurrences of <w1> with <w2> in the entire file.",
+        ":,%,s,/,<w1>,/,<w2>,/,g",
+    ),
+    Task(
+        "Replace all occurrences of <w1> with <w2> in the entire file, with confirmation for each change.",
+        ":,%,s,/,<w1>,/,<w2>,/,g,c",
+    ),
+    Task(
+        "Select the next five characters and save them to a file.",
+        "v,right,right,right,right,:,w",
+    ),
+    Task("Exit Vim.", ":,q"),
+    Task("Split the screen vertically.", ":,v,s,p,l,i,t,\r"),
+    Task("Split the screen horizontally.", ":,s,p,l,i,t,\r"),
+    Task("Merge the file <w1>.txt into the current file.", ":,r, ,<w1>,.,t,x,t,\r"),
+    Task(
+        "Move three words to the left without using numeric values.",
+        "ctrl+left,ctrl+left,ctrl+left",
+    ),
+    Task(
+        "Move three words to the right without using numeric values.",
+        "ctrl+right,ctrl+right,ctrl+right",
+    ),
+    Task("Return to the previous position.", "C-o"),
+    Task("Type <w1>.", "<w1>"),
+    Task("Indent the current line and the two lines below.", "v,down,down,>,>"),
+    Task("Enable case-sensitive search.", ":,s,e,t, ,n,o,i,c"),
+    Task("Enable case-insensitive search.", ":,s,e,t, ,i,c"),
+    Task("Copy the word under the cursor.", "y,w"),
+    Task("Replace the text under the cursor with <w1>.", "R,<w1>"),
+    Task("Insert text at the end of the line.", "A"),
+    Task("Insert text after the cursor.", "a"),
+    Task("Insert a new line below the current line.", "o"),
+    Task("Insert a new line above the current line.", "O"),
+    Task("Move to the beginning of the document.", "g,g"),
+    Task("Move to the end of the line.", "$"),
+    Task("Move to the end of the document.", "G"),
+    Task(
+        "Select the next four characters and copy them.", "v,right,right,right,right,y"
+    ),
+    Task("Switch to the next window.", "C-w,C-w"),
+    Task("Swap the position of the current window with another.", "C-w,r"),
+    Task("Copy the current line.", "y,y"),
+    Task("Copy all content.", "y"),
+    Task("Paste the copied content.", "p"),
+    Task("Replace the character under the cursor with '<randc1>'.", "r,<randc1>"),
+    Task("Delete the character under the cursor.", "x"),
+    Task("Delete the line under the cursor.", "d,d"),
+    Task("Cut the current line.", "c,c"),
+    Task("Type <w1>.", "<w1>"),
+]
+
+
+# shift select Move with>>
+def main():
+    questions_correct = []
+    questions_incorrect = []
+    question_count = 0
+    durations = []
+    while tasks:
+        clear_terminal()
+        if not durations:
+            avg_reaction_time = 0
+        else:
+            avg_reaction_time = sum(durations) / len(durations)
+        num_correct = len(questions_correct)
+        num_incorrect = len(questions_incorrect)
+        avg_time = round(sum(durations) / len(durations), 2) if durations else 0
+        print(
+            "Correct: {}\tIncorrect: {}\tAvg reaction time: {}".format(
+                num_correct, num_incorrect, avg_time
+            )
+        )
+        print("")
+        question_count += 1
+        task = random.choice(tasks)
+        print("{}. ".format(question_count), end="")
+        time_start = time.time()
+        if task.execute():
+            tasks.remove(task)
+            questions_correct.append(task)
+        else:
+            questions_incorrect.append(task)
+        time_end = time.time()
+        durations.append(time_end - time_start)
+
+
+if __name__ == "__main__":
+    main()
+