Collapse white space.
MIT License
List of known HTML tag names
Check if a character is a white space character
List of known void HTML elements
Parse and stringify comma-separated tokens
Parse and stringify space-separated tokens
Info on HTML character encodings.
Check if a character is a word character
Remove final newline characters from a string
Check if a character is alphabetical
Info on HTML / XHTML / MathML / SVG doctypes
Detab: tabs -> spaces
Map of HTML elements to allowed attributes
Remove spaces and tabs around line-breaks
Match the case of `value` to that of `base`
Map of web namespaces