Basic XML has only a handful of character entities, primarily because it doesn't really need more.Entities such as (u with an umlaut), which work in HTML, will be flagged as undefined entities unless you define them yourself in your DTD. A list of predefined HTML entities and their Unicode codepoints can be found at Character entity references in HTML 4. For other non-ASCII characters, such as the Euro symbol, checkbox, etc., see the Unicode Reference By Name document that is found at the Unicode Consortium site.

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The following hexadecimal example will result in a Euro sign: Getting your XML correctly encoded is only part of the job.

If you want the character to display or print correctly (and you probably do), then the selected font must contain the necessary glyph.

Because of differences between font encoding methods, and limitations in some font technologies, this can be a troublesome issue, especially for symbol characters.

There is no limit to the file you can upload but be patient with big or huge files.

It is the responsibility of the user to make sure that the XSL-FO submitted to FOP is correct.

The tutorial items presented here are not comprehensive, but are of the FAQ variety. When entering special (non-ASCII) characters in XML, the general rule is to use the applicable Unicode character instead of trying to use a character entity as you would with HTML. SGML has a limited character set, which requires it to use character entities to represent special characters.

One of the improvements of XML over SGML (and thus HTML) is native support for Unicode.

Validates the XML string/file against the specified XSD string/file.

XSD files are "XML Schemas" that describe the structure of a XML document.

The validator checks for well formedness first, meaning that your XML file must be parsable using a DOM/SAX parser, and only then does it validate your XML against the XML Schema.

The validator will report fatal errors, non-fatal errors and warnings.