make.clean.html — Make HTML conform to modern coding standards
If make.clean.html is true, the stylesheets take
extra effort to ensure that the resulting HTML is conforms to
modern HTML coding standards. In addition to eliminating
excessive and noncompliant coding, it moves presentation
HTML coding to a CSS stylesheet.
The resulting HTML is dependent on
CSS for formatting, and so the stylesheet is capable of
generating a supporting CSS file. The docbook.css.source
and custom.css.source parameters control
how a CSS file is generated.
If you require your CSS to reside in the HTML
head element, then the generate.css.header
can be used to do that.
The make.clean.html parameter is
different from html.cleanup
because the former changes the resulting markup; it does not use extension functions
like the latter to manipulate result-tree-fragments,
and is therefore applicable to any XSLT processor.
If make.clean.html is set to zero (the default),
then the stylesheet retains its original
“old style”
HTML formatting features.