Look at the contents of a parameter. If the content has a string of characters and digits followed by an equal sign, compare the alphanumeric string to the list of cs1|2 parameters. If found, then the string is possibly a parameter that is missing its pipe. There are two tests made: -- the first parameter has a value and whitespace separates that value from the missing pipe parameter name -- the first parameter has no value (whitespace after the first = is trimmed by MediaWiki) cs1|2 shares some parameter names with XML/HTML attributes: class=, title=, etc. To prevent false positives XML/HTML tags are removed before the search.