Created
August 5, 2016 07:57
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| # -*- encoding: utf-8 -*- | |
| import re | |
| def convert_bold(content): | |
| raw = bytearray(content) | |
| for m in re.finditer(r"\'\'((?!\'\').)+\'\'", content): | |
| start = m.start() | |
| end = m.end() | |
| raw[start] = raw[start + 1] = raw[end - 1] = raw[end - 2] = ord('_') | |
| return str(raw) | |
| def convert_italic(content): | |
| raw = bytearray(content) | |
| for m in re.finditer(r"\'\'\'((?!\'\'\').)+\'\'\'", content): | |
| start = m.start() | |
| end = m.end() | |
| raw[start] = raw[start + 1] = raw[end - 1] = raw[end - 2] = ord(' ') | |
| raw[start + 2] = raw[end - 3] = ord('_') | |
| return str(raw) | |
| def convert_header(content): | |
| pattern = re.compile(r'(\*)\1{0,5}') | |
| mem = 0 | |
| raw = bytearray(content) | |
| for m in pattern.finditer(content): | |
| start = m.start() | |
| end = m.end() | |
| for n in range(start, end): | |
| raw[n + mem] = ord('#') | |
| if raw[end + mem] != ord(' '): | |
| raw.insert(end + mem, ord(' ')) | |
| mem += 1 | |
| return str(raw) | |
| def convert_bulleted_list(content): | |
| pattern = re.compile(r'(?:^|\n)(-)\1{0,4} ') | |
| mem = 0 | |
| raw = bytearray(content) | |
| for m in pattern.finditer(content): | |
| start = m.start() | |
| end = m.end() - 1 | |
| # Skip endline character | |
| start = (start + 1) if raw[start + mem] == 10 else start | |
| # Replace '-' to whitespace except the latter | |
| for n in range(start, end): | |
| raw[n + mem] = ord(' ') if (n != end - 1) else ord('*') | |
| # Insert additional space | |
| if end - start - 1 > 0: | |
| for n in range(start, end - 1): | |
| raw.insert(n + mem, ord(' ')) | |
| mem += (end - start - 1) | |
| return str(raw) | |
| def convert_numbered_list(content): | |
| pattern = re.compile(r'(?:^|\n)(\+)\1{0,4} ') | |
| mem = 0 | |
| raw = bytearray(content) | |
| for m in pattern.finditer(content): | |
| start = m.start() | |
| end = m.end() - 1 | |
| # Skip endline character | |
| start = (start + 1) if raw[start + mem] == 10 else start | |
| # Replace '+' to whitespace except the latter | |
| for n in range(start, end): | |
| raw[n + mem] = ord(' ') if (n != end - 1) else ord('1') | |
| # Add '.' after 1 | |
| raw.insert(end + mem, ord('.')) | |
| mem += 1 | |
| # Insert additional space | |
| if end - start - 1 > 0: | |
| for n in range(start, end - 1): | |
| raw.insert(n + mem, ord(' ')) | |
| mem += (end - start - 1) | |
| return str(raw) | |
| def convert_code(content): | |
| # Replace `{code}` | |
| content = re.sub(r'(?:^|\n)\{code\}', '\n``` ', content) | |
| # Replace `{/code}` | |
| content = re.sub(r'(?:^|\n)\{\/code\}', '\n``` ', content) | |
| return content | |
| def convert_quote(content): | |
| lines = content.split('\n') | |
| quote_content = False | |
| is_first = False | |
| mem = 0 | |
| for m in range(0, len(lines)): | |
| if re.match(r'^\{quote\}$', lines[m + mem]): | |
| is_first = quote_content = True | |
| elif re.match(r'^\{\/quote\}$', lines[m + mem]): | |
| is_first = quote_content = False | |
| elif quote_content: | |
| # Trick to prevent markdown inline | |
| if not is_first and len(lines[m + mem]) != 0 and len(lines[m + mem -1]) != 2: | |
| lines.insert(m + mem, '> ') | |
| mem += 1 | |
| lines[m + mem] = "> " + lines[m + mem] | |
| if is_first: | |
| is_first = False | |
| result = '\n'.join(lines) | |
| return result.replace('{quote}', '').replace('{/quote}', '') | |
| def convert_table(content): | |
| lines = content.split('\n') | |
| length = len(lines) | |
| marks = dict() | |
| cols = 0 | |
| mem = 0 | |
| for m in range(0, length): | |
| if is_table_row(lines[m]): | |
| cur_cols = calc_cols(lines[m]) | |
| # Remove backlog markup | |
| lines[m] = lines[m].replace('|~', '|') | |
| # Track new table | |
| if cols != cur_cols: | |
| marks[m] = cur_cols | |
| cols = cur_cols | |
| for key, value in marks.items(): | |
| heading = '|-|' | |
| for i in range(1, value - 1): | |
| heading += ':-|' | |
| lines.insert(key + mem + 1, heading) | |
| mem += 1 | |
| return '\n'.join(lines) | |
| def convert_link(content): | |
| return re.sub(r'\[\[(((?!\>|\]\]|\:).)*)(\>|\:)(((?!\]\])(.|\/|\:))*)\]\]', link_rule, content) | |
| def convert_cacoo_link(content): | |
| return re.sub(r'\#cacoo\((((?!\)|\/view\,).)*)(((?!\)).)*)+\)', cacoo_rule, content) | |
| def cacoo_rule(found): | |
| return 'https://cacoo.com/' + found.group(1) | |
| def link_rule(found): | |
| return '[' + found.group(1) + '](' + found.group(4) + ')' | |
| def is_table_row(str): | |
| return re.match(r'^\|.+\|\s*$', str) | |
| def calc_cols(str): | |
| return len(re.findall(r'\|', str)) | |
| def convert(content): | |
| return convert_bold( | |
| convert_italic( | |
| convert_quote( | |
| convert_bulleted_list( | |
| convert_numbered_list( | |
| convert_header( | |
| convert_code( | |
| convert_table( | |
| content | |
| ) | |
| ) | |
| ) | |
| ) | |
| ) | |
| ) | |
| ) | |
| ) |
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