A dirty script for removing hard line break in Markdown files.

hard-break-fixer.py

#!/usr/bin/env python3
import re
import sys

f = open(sys.argv[-1], 'r+')
document = f.read()

build = ''


def is_list_line(idx):
    p = idx - 1
    c = document[p]

    while c != '\n':
        if c != ' ':
            return (False, 0)

        p = p -1
        c = document[p]

    return True, idx - p - 1


# Remove Hard Breaks
for idx in range(0, len(document) - 1):
    char_current = document[idx]

    if idx == 0 or idx == len(document) - 2:
        build += char_current
        continue

    char_previous = document[idx - 1]
    char_next = document[idx + 1]

    list_line_state = is_list_line(idx)
    if char_current == '-' and list_line_state[0]:
        build += '\n' + ' ' * list_line_state[1] + char_current
        continue

    if char_current == '\n' and char_next != '\n':
        if char_current != ' ' and char_next != ' ' and char_previous != '\n':
            build += ' '
        continue
    if char_current == '\n' and char_next == '\n':
        build += char_current + '\n'
        continue

    if char_previous == ' ' and char_current == ' ':
        continue

    build += char_current

# Add Trailing New Line
if build[-1:] != '\n':
    build += '\n'

# Remove extra empty line
build = re.sub(r'\n{2,}', '\n\n', build)
# Remove trailing space
build = re.sub(r'\s+$', '', build)

f.seek(0)
f.write(build)
f.truncate()
f.close()