hard_wraps.py

import re
import sys

# Usage
# script with the markdown file name
# hard_wrap.py sample.md


def hard_to_soft_wraps(content):
    # pre= re.findall(r'\n---\n(.*?)\n```.*$', content, re.DOTALL)
    # mid = re.findall(r'\n```\n(.*?)\n```(.*?)',content, re.DOTALL)
    # post = re.findall(r'\n```\n\n(.*$)', content, re.DOTALL)

    # get all fenced code block
    fences = re.findall(r"\n```.*?```\n", content, re.DOTALL)

    # get the frontmatter data
    frontmatter = re.findall(r"---.*?---\n", content, re.DOTALL)

    for fence in fences:
        # set the new line character as some value //r to identify later
        content = content.replace(fence, fence.replace("\n", "\\r"))
    for attrib in frontmatter:
        content = content.replace(attrib, attrib.replace("\n", "\\r"))

    # Replace the new paragraph as a special character \\r
    content = content.replace("\n\n", "\\r\\r")

    # Replace the new heading with the special character
    content = content.replace("\n#", "\\r\\r")

    # Split the text for iterating over the contents
    content = re.split("\\r\\r", content)
    for w in content:
        # replace the newline character which is a hard wrap into a whitespace
        # then replace the special character with new line character
        content = w.replace("\n", " ").replace("\\r", "\n")

    # returned soft wrapped content
    return content


filename = sys.argv[1]

with open(filename, 'r') as f:
    content = f.read()
# content is the original text of the markdown file

# new_content as the converted text as soft wrapped
new_content = hard_to_soft_wraps(content)
print(new_content)