1 USING: help.markup help.syntax present multiline ;
4 ABOUT: "xml.interpolate"
6 ARTICLE: "xml.interpolate" "XML literal interpolation"
7 "The " { $vocab-link "xml.interpolate" } " vocabulary provides a convenient syntax for generating XML documents and chunks. It defines the following parsing words:"
8 { $subsection POSTPONE: <XML }
9 { $subsection POSTPONE: [XML }
10 "For a description of the common syntax of these two, see"
11 { $subsection { "xml.interpolate" "in-depth" } } ;
14 { $syntax "<XML <?xml version=\"1.0\"?><document>...</document> XML>" }
15 { $description "This syntax allows the interpolation of XML documents. When evaluated, there is an XML document on the stack. For more information about XML interpolation, see " { $link { "xml.interpolate" "in-depth" } } "." } ;
18 { $syntax "[XML foo <x>...</x> bar <y>...</y> baz XML]" }
19 { $description "This syntax allows the interpolation of XML chunks. When evaluated, there is a sequence of XML elements (tags, strings, comments, etc) on the stack. For more information about XML interpolation, see " { $link { "xml.interpolate" "in-depth" } } "." } ;
21 ARTICLE: { "xml.interpolate" "in-depth" } "XML interpolation syntax"
22 "XML interpolation has two forms for each of the words " { $link POSTPONE: <XML } " and " { $link POSTPONE: [XML } ": a fry-like form and a locals form. To splice locals in, use the syntax " { $snippet "<-variable->" } ". To splice something in from the stack, in the style of " { $vocab-link "fry" } ", use the syntax " { $snippet "<->" } ". An XML interpolation form may only use one of these styles."
24 "These forms can be used where a tag might go, as in " { $snippet "[XML <foo><-></foo> XML]" } " or where an attribute might go, as in " { $snippet "[XML <foo bar=<->/> XML]" } ". When an attribute is spliced in, it is not included if the value is " { $snippet "f" } " and if the value is not a string, the value is put through " { $link present } ". Here is an example of the fry style of XML interpolation:"
26 {" USING: splitting sequences xml.writer xml.interpolate ;
27 "one two three" " " split
28 [ [XML <item><-></item> XML] ] map
29 <XML <doc><-></doc> XML> pprint-xml"}
30 {" <?xml version="1.0" encoding="UTF-8"?>
42 "Here is an example of the locals version:"
44 {" USING: locals urls xml.interpolate xml.writer ;
48 url [ URL" http://factorcode.org/" ]
59 {" <?xml version="1.0" encoding="UTF-8"?>
60 <x number="3" url="http://factorcode.org/" string="hello" word="drop"/>"} } ;