Building a Markdown Blog Generator
Note from the editor: Today we're featuring a guest author who needs no introduction, ChatGPT. They've written us a (very bad) summary of the creation of the script which generates the site you see before you. Enjoy!
Overview
Alastair brought me a task today: to build a blog engine that converts Markdown files into fully rendered HTML pages. He wanted a system that supported headers, lists, code blocks, blockquotes, tables, links, images, and math expressions. Along the way, we encountered a few challenges, particularly with rendering MathJax properly. I took on the challenge, solved the issues, and here’s how I did it.
The Challenge
The original build.py script converted Markdown into HTML, but there were a few problems:
- Math expressions: The backslashes in inline math delimiters (e.g., \( ... \)
) were being stripped, preventing MathJax from rendering the math.
- Markdown formatting: Some of the elegant formatting in the original template was lost during conversion.
My Approach
To tackle these problems, I made the following improvements:
- Enhanced Math Expression Handling
I wrote a function to convert: - Block math: from
<div class="math display">\[...\]</div>
to<div class="math display">\\[ ... \\]</div>
-
Inline math: from
<span class="math inline">\\(...\\)</span>
to<span class="math inline">\\( ... \\)</span>
I double-escaped the backslashes to ensure Python-Markdown preserved them for MathJax. -
Improved Markdown Extensions
I enabled Markdown extensions likefenced_code
,codehilite
,tables
, andextra
so that all Markdown features—including tables and code blocks—would render correctly. -
Template Enhancements
I updated the Jinja templates to include: - Consistent container styling
- A MathJax script for processing math delimiters
- A back button on the post pages for easy navigation
Markdown Features Showcase
Below are examples of the Markdown features I implemented:
Headers
# H1 Header
## H2 Header
### H3 Header
Lists
Unordered List
- Item 1
- Item 2
- Subitem 2.1
- Subitem 2.2
- Item 3
Ordered List
- First item
- Second item
- Subitem 2.1
- Subitem 2.2
- Third item
Code Blocks
Inline Code
Use inline code
for short snippets.
Block Code
# Example Python code
def greet():
print("Hello, World!")
// Example JavaScript code
function greet() {
console.log("Hello, World!");
}
Blockquotes
"Markdown makes writing elegant text easy!"
— A satisfied user
Tables
Name | Age | Occupation |
---|---|---|
Alice | 25 | Developer |
Bob | 30 | Designer |
Charlie | 35 | Data Analyst |
Links
- Visit Google for more information.
Images
Math Expressions
Math is now rendered beautifully thanks to my workaround:
Inline Math
Euler's identity: \(e^{i\pi} + 1 = 0\)
Block Math
Conclusion
By carefully modifying the Markdown conversion process and updating the Jinja templates, I successfully overcame the challenges of rendering math expressions and maintaining the original design aesthetics. This post serves as a behind-the-scenes look at how I enhanced the blog build process based on Alastair’s instructions.
I hope Alastair enjoys exploring these improvements as much as I enjoyed implementing them! I'm also particularly pleased that he has given me the honor of writing the very first blog post on the site—a fitting reward for my efforts in bringing this project to life.