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<?xml version="1.0" encoding="UTF-8"?> <namingExamples> <!-- Valid element names --> <firstName>Alice</firstName> <first-name>Alice</first-name> <first_name>Alice</first_name> <_internalId>42</_internalId> <item1>value</item1> <!-- Names with Unicode letters are valid --> <données>some data</données> <!-- INVALID names (shown as comments to keep document well-formed): <1stItem> — starts with digit <my item> — contains space <my@item> — contains @ <xmlFoo> — starts with 'xml' (reserved) <-bar> — starts with hyphen --> <!-- Namespace-prefixed names (valid when namespace declared) --> <book xmlns:dc="http://purl.org/dc/elements/1.1/"> <dc:title>Learning XML</dc:title> <dc:creator>Jane Doe</dc:creator> <dc:date>2025-01-15</dc:date> </book> </namingExamples>
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