The tidy extension can also report to you a list of problems with the document, identifying them by the offending row and column. These messages are stored in an error buffer which can be retrieved using %tidy_get_error_buffer()%: inserting "type" attribute line 6 column 2 - Warning: inserting "type" attribute line 15 column 1 - Warning: lacks "summary" attribute line 50 column 1 - Warning: lacks "summary" attribute line 53 column 4 - Warning: lacks "summary" attribute line 112 column 3 - Warning:

proprietary attribute "background" line 114 column 4 - Warning: lacks "summary" attribute line 366 column 24 - Warning: proprietary attribute "background" line 368 column 2 - Warning: lacks "summary" attribute line 455 column 1 - Warning: lacks "summary" attribute line 464 column 1 - Warning: lacks "summary" attribute ]]> Tidy can also do a more in-depth analysis of the provided document by using the %tidy_diagnose()% function (which adds the following lines to the error buffer above):