eg:ext-link(), extension function 2nd eg:fact(), extension function eg: letters -only(), extension function eg:os- path (), extension function eg:page-src(), extension function eg:upcase2(), extension function element type declarations 2nd 3rd element types block-level 2nd 3rd 4th classifier 2nd generic 2nd 3rd 4th 5th inline-level 2nd names of 2nd 3rd 4th top-level vs. attributes 2nd 3rd wrapper elements checking presence of 2nd IDs of 2nd 3rd nested order of 2nd 3rd sequences of em, HTML element type 2nd Emacs, editor email messages 2nd 3rd 4th emphasis 2nd 3rd 4th text-level vs. paragraph-level within emphasis within headings encoding 2nd ends-with (), XSLT function entity references creating by Saxon mnemonic 2nd parameter environment groups 2nd IDs of 2nd 3rd variables in 2nd 3rd 4th 5th 6th 7th eval(), Saxon function evaluate(), Saxon function 2nd every ... in ... satisfies, XPath expression explain, Saxon attribute expression(), Saxon function EXSLT (Extended XSLT) 2nd supported by XSLT processors 2nd XPath expressions in 2nd Extensible HyperText Markup Language [See XHTML] Extensible Markup Language [See XML] Extensible Server Pages [See XSP] Extensible Stylesheet Language 2nd [See XSL] Formatting Objects [See XSL-FO] Extensible Stylesheet Language Transformations [See XSLT] extension functions [See functions, extension] extensions, in filenames 2nd external entities external processing