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Editorial Team
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Asked: 2026-05-30T16:19:38+00:00

I was wondering are there any issues with having ampersands in XML tags? Or

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I was wondering are there any issues with having ampersands in XML tags? Or does this cause issues when producing and consuming the XML document?

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  1. Editorial Team

    The XML spec forbids them.

    An element name is defined as:

    Name ::= NameStartChar (NameChar)*

    So, a NameStartChar followed by any number of NameChar.

    Where:

    NameStartChar ::= “:” | [A-Z] | “_” | [a-z] | [#xC0-#xD6] | [#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D] | [#x37F-#x1FFF] | [#x200C-#x200D] | [#x2070-#x218F] | [#x2C00-#x2FEF] | [#x3001-#xD7FF] | [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | [#x10000-#xEFFFF]
    [4a]

    And:

    NameChar ::= NameStartChar | “-” | “.” | [0-9] | #xB7 | [#x0300-#x036F] | [#x203F-#x2040]

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