From Automated WCAG Monitoring Community Group
This test checks that no non-textual information is conveyed by a sequence character.
- H86: Providing text alternatives for ASCII art, emoticons, and leetspeak
- F72: Failure of Success Criterion 1.1.1 due to using ASCII art without providing a text alternative
- WAI: ASCII art detection algorithms
- ASCII art can be assembled using every printable character
- ASCII art can be multiline
- The charset is specified in the
- The font used can be either a system font or a font retrieved from the web
- Some characters are adjacently repeated more than 4 times
- Most ASCII art uses non-letter characters
- Most ASCII art is inside
xmpelements (could also be a CSS
white-space: prestyled element)
- Most ASCII art uses MonoSpace-fonts
- Text used to form shapes conveying information is also considered to be ASCII art
- Leetspeak is built following a set fixed rules and can be translated and also detected.
- Emoticons are built following a set fixed rules and can be translated and also detected.
- Single unicode characters in private use area
U+F8FFcan be used to display graphics. Even those can convey information, e.g. be an icon for a filetype
All text nodes with exception of those contained in
//*[not(self::script or self::style)]/text()