Correct formatting errors

[oldenbourglaura]

Description

During correcting the formatting in former issues, there was an error created that I want to fix: In some places, instead of a line with bolded text we see a stray apostrophe, followed by bolded and italicised text and a missing linebreak.

These text lines should be just bold and followed by a linebreak.

Method

Regex or search&replace

Observed in Wiki

• Wrong opening tags: six apostrophes in a row: ''''''. Possible regex to detect: ''''''(?=[^'])
• Wrong closing tags: six apostrophes in a row: ''''''. Possible regex to detect: (?<!')''''''(?!')(?=\r?\n)

Expected in Wikitext

• Turn the opening tags '''''' (which are always followed by a character) into simple bolds '''
• Turn the closing tags '''''' (which are not followed by a character) into simple bolds ''' followed by a linebreak if possible

If this is too hard:

• Turn all occurences of 6 apostrophes '''''' into simple bolds '''

Example file

• From Gatsby Scrape
• https://test.kewl.org/wiki/IPCC:Wg1:Chapter:Chapter-1
• https://www.kewl.org/IPCC/Gatsby/www.ipcc.ch/report/ar6/wg1/chapter/chapter-1/index.clean.wiki

Additional information

(This problem only occurs in Gatsby files, but the fix should't affect the Wordpress files.)