CODEWITHSUNDEEP
regexxmlxsdxsd-validationxml-validation
AlvaderLuncx
AlvaderLuncx

Reputation: 31

Restricting to values of 01 through 10 in XSD?

I'm trying to understand the use of patterns in XSD. Hows does '+' in a pattern for a restriction work in XSD?

After some research, I found out that I can use restrictions with patterns. I do understand that the "+" means 1 or more. But will it also apply in this case?

<xsd:simpleType name="typeNumber">
        <xsd:restriction base="xsd:ID">
            <xsd:pattern value="nr[0-9]+"/>
        </xsd:restriction>
    </xsd:simpleType>

Will, for example, the value nr12345 be valid? Furthermore, I would like to know how it would be possible to make the acceptable value between nr01 and nr10.

Upvotes: 3

Views: 586

Answers (2)

Wiktor Stribiżew
Wiktor Stribiżew

Reputation: 626794

You may use

<xsd:simpleType name="typeNumber">
    <xsd:restriction base="xsd:ID">
        <xsd:pattern value="nr(0?[1-9]|10)"/>
    </xsd:restriction>
</xsd:simpleType>

Details

The regex will match an entire string that matches

  • nr - nr at the start of the string
  • (0?[1-9]|10) - an optional 0 followed with a non-zero digit (see 0?[1-9] alternative) or (|) 10 value.

Upvotes: 0

kjhughes
kjhughes

Reputation: 111541

This XSD type,

<xsd:simpleType name="typeNumber">
    <xsd:restriction base="xsd:ID">
        <xsd:pattern value="nr0[1-9]"/>
        <xsd:pattern value="nr10"/>
    </xsd:restriction>
</xsd:simpleType>

will allow nr01 through nr09 and nr10, as requested, without needing +, which, yes, does mean 1 or more occurences.

Upvotes: 2

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