Merge pull request sumanth-0#794 from akashadsare/add-simple-markdown-converter

sumanth-0 · web-flow · commit 233186c4d0ba · 2025-10-12T20:52:27.000+05:30
Add Simple Markdown Converter - Issue sumanth-0#789
diff --git a/Simple_Markdown_Converter/README.md b/Simple_Markdown_Converter/README.md
@@ -0,0 +1,75 @@
+# Simple Markdown Converter
+
+A minimal Python script that converts plain text files to markdown format with automatic header and bullet list detection.
+
+## Features
+
+- **Header Detection**: Lines ending with `:` become `## Headers`
+- **Bullet Lists**: Lines starting with `-`, `*`, or `•` become markdown bullets
+- **Numbered Lists**: Lines starting with numbers become ordered lists
+- **Auto Output**: Automatically names output file with `.md` extension
+- **Sample Generation**: Creates sample file for testing
+
+## Usage
+
+### Command Line
+```bash
+python markdown_converter.py input.txt [output.md]
+```
+
+### Interactive Mode
+```bash
+python markdown_converter.py
+```
+
+## Conversion Rules
+
+| Input | Output |
+|-------|--------|
+| `Header:` | `## Header` |
+| `- Item` | `- Item` |
+| `* Item` | `- Item` |
+| `• Item` | `- Item` |
+| `1. Item` | `1. Item` |
+| `Regular text` | `Regular text` |
+
+## Example
+
+**Input (sample.txt):**
+```
+Introduction:
+This is a sample document.
+
+Features:
+- Easy to use
+- Fast conversion
+* Multiple bullet styles
+
+Steps:
+1. Open file
+2. Run converter
+```
+
+**Output (sample.md):**
+```markdown
+## Introduction
+This is a sample document.
+
+## Features
+- Easy to use
+- Fast conversion
+- Multiple bullet styles
+
+## Steps
+1. Open file
+1. Run converter
+```
+
+## Requirements
+
+- Python 3.6+
+- No external dependencies
+
+## Author
+
+Created for issue #789 - 100 Lines of Python Code Project
diff --git a/Simple_Markdown_Converter/markdown_converter.py b/Simple_Markdown_Converter/markdown_converter.py
@@ -0,0 +1,112 @@
+#!/usr/bin/env python3
+import os
+import sys
+import re
+
+
+def convert_to_markdown(text):
+    """Convert plain text to markdown format."""
+    lines = text.split('\n')
+    markdown_lines = []
+    
+    for line in lines:
+        line = line.strip()
+        if not line:
+            markdown_lines.append('')
+            continue
+            
+        # Convert headers (lines ending with :)
+        if line.endswith(':'):
+            markdown_lines.append(f"## {line[:-1]}")
+        # Convert bullet points (lines starting with -, *, or •)
+        elif line.startswith(('-', '*', '•')):
+            content = line[1:].strip()
+            markdown_lines.append(f"- {content}")
+        # Convert numbered lists
+        elif re.match(r'^\d+\.?\s+', line):
+            content = re.sub(r'^\d+\.?\s+', '', line)
+            markdown_lines.append(f"1. {content}")
+        # Regular text
+        else:
+            markdown_lines.append(line)
+    
+    return '\n'.join(markdown_lines)
+
+
+def process_file(input_file, output_file=None):
+    """Process input file and convert to markdown."""
+    try:
+        with open(input_file, 'r', encoding='utf-8') as f:
+            content = f.read()
+        
+        markdown_content = convert_to_markdown(content)
+        
+        if not output_file:
+            output_file = os.path.splitext(input_file)[0] + '.md'
+        
+        with open(output_file, 'w', encoding='utf-8') as f:
+            f.write(markdown_content)
+        
+        print(f"Converted: {input_file} -> {output_file}")
+        return True
+        
+    except FileNotFoundError:
+        print(f"Error: File not found: {input_file}")
+        return False
+    except Exception as e:
+        print(f"Error: {e}")
+        return False
+
+
+def create_sample_file():
+    """Create a sample text file for demonstration."""
+    sample_content = """Introduction:
+This is a sample document.
+
+Features:
+- Easy to use
+- Fast conversion
+- Supports headers
+* Multiple bullet styles
+• Unicode bullets too
+
+Steps to follow:
+1. Open the file
+2. Run the converter
+3. Check the output
+
+Conclusion:
+The conversion is complete."""
+    
+    with open('sample.txt', 'w', encoding='utf-8') as f:
+        f.write(sample_content)
+    print("Created sample.txt")
+
+
+def main():
+    """Main function."""
+    print("Simple Markdown Converter")
+    print("=" * 30)
+    
+    if len(sys.argv) > 1:
+        input_file = sys.argv[1]
+        output_file = sys.argv[2] if len(sys.argv) > 2 else None
+    else:
+        input_file = input("Enter input file path (or press Enter for sample): ").strip()
+        
+        if not input_file:
+            create_sample_file()
+            input_file = 'sample.txt'
+        
+        output_file = input("Enter output file path (optional): ").strip() or None
+    
+    if not os.path.exists(input_file):
+        print(f"File not found: {input_file}")
+        return
+    
+    if process_file(input_file, output_file):
+        print("Conversion completed successfully!")
+
+
+if __name__ == "__main__":
+    main()
