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Currying Practice

Markdown makes displaying images as simple as possible. To add an image to a Markdown document, just use this syntax:

![alt text](url "title")

alt text: a brief description for screen readers and web scrapers; required for accessibility.
url: a URL or relative path to the image.
title: shown on mouse hover; optional.

Assignment

Doc2Doc makes using markdown a breeze. This includes adding images to markdown documents.

Complete the create_markdown_image function using currying. It takes a string input, alt_text.

Enclose the alt_text in square brackets prefixed with an exclamation point: ![alt_text]
Define an inner function that also takes a string input, url:
1. The inner function should first escape any parentheses in the URL by replacing them with encoded sequences.
  1. Use the .replace() string method to change any opening parenthesis ( into %28.
  2. Do the same to change any closing parenthesis ) into %29.
2. Enclose the url with parentheses: (url)
3. Add the enclosed url to the end of the enclosed alt_text: ![alt_text](url)
4. Define the innermost function. It should take an optional string input for the title (title=None).
  1. If a title is passed:
    1. Enclose it in double quotes.
    2. Add the quoted title to the image syntax by first removing the closing parenthesis ) from the end of the image syntax.
    3. Add a space and the quoted title with a closing parenthesis ) to the end of the image syntax: ![alt_text](url "title")
  2. Return the finished image syntax.
5. Return the innermost function.
Return the inner function.