tldr/pages/common/xmllint.md
Waldir Pimenta bad0110e8a xmllint: various fixes (#1450)
- fix string example, and improve its description
- move xpath information to the main description
- add "tags" synonym for "nodes"
- add a html example
- simplify description of doctype example
- capitalize "xml" consistently
2017-08-25 08:09:36 -01:00

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# xmllint
> XML parser and linter that supports XPath, a syntax for navigating XML trees.
- Return all nodes (tags) named "foo":
`xmllint --xpath "//{{foo}}" {{source_file.xml}}`
- Return the contents of the first node named "foo" as a string:
`xmllint --xpath "string(//{{foo}})" {{source_file.xml}}`
- Return the href attribute of the second anchor element in an html file:
`xmllint --html --xpath "string(//a[2]/@href)" webpage.xhtml`
- Return human-readable (indented) XML from file:
`xmllint --format {{source_file.xml}}`
- Check that a XML file meets the requirements of its DOCTYPE declaration:
`xmllint --valid {{source_file.xml}}`
- Validate XML against DTD schema hosted online:
`xmllint --dtdvalid {{URL}} {{source_file.xml}}`