HTML-XML-utils由一套小型C程序（过滤器）组成，可以读取HTML 和XML文件，增加一个内容表，一个字母索引，一个书目索引，交叉引用，数字化的头部，删除元素，记数元素，漂亮的打印功能，等等。当它读取HTML时，它假设代码是正确的HTML4.0，或是与其版本相近的代码。-HTML-XML-utils (filter) is composed by a set of small C
procedure, may read takes HTML and the XML document, increases a
content table, a letter index, a booklist index, the overlapping
quotation, the digitized forehead, deletes the element, the register
element, attractive printing function, and so on. When it reads takes
HTML, its supposition code is correct HTML4.0, perhaps if edition
close code.