Struct xmpp_parsers::data_forms::validate::Validate

pub struct Validate {
    pub datatype: Option<Datatype>,
    pub method: Option<Method>,
    pub list_range: Option<ListRange>,
}

Validation rules for a DataForms Field.

Fields

datatype: Option<Datatype>

The ‘datatype’ attribute specifies the datatype. This attribute is OPTIONAL, and defaults to “xs:string”. It MUST meet one of the following conditions:

• Start with “xs:”, and be one of the “built-in” datatypes defined in XML Schema Part 2
• Start with a prefix registered with the XMPP Registrar
• Start with “x:”, and specify a user-defined datatype.

Note that while “x:” allows for ad-hoc definitions, its use is NOT RECOMMENDED.

method: Option<Method>

The validation method. If no validation method is specified, form processors MUST assume validation. The element SHOULD include one of the above validation method elements, and MUST NOT include more than one.

Any validation method applied to a field of type “list-multi”, “list-single”, or “text-multi” (other than ) MUST imply the same behavior as , with the additional constraints defined by that method.

https://xmpp.org/extensions/xep-0122.html#usecases-validation

list_range: Option<ListRange>

For “list-multi”, validation can indicate (via the element) that a minimum and maximum number of options should be selected and/or entered. This selection range MAY be combined with the other methods to provide more flexibility. The element SHOULD be included only when the is of type “list-multi” and SHOULD be ignored otherwise.

The element SHOULD possess either a ‘min’ or ‘max’ attribute, and MAY possess both. If neither attribute is included, the processor MUST assume that there are no selection constraints.

https://xmpp.org/extensions/xep-0122.html#usecases-ranges

Trait Implementations

impl Clone for Validate

fn clone(&self) -> Validate

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Validate

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<Validate> for Element

fn from(value: Validate) -> Self

Converts to this type from the input type.

impl PartialEq for Validate

fn eq(&self, other: &Validate) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<Element> for Validate

type Error = FromElementError

The type returned in the event of a conversion error.

fn try_from(elem: Element) -> Result<Self, Self::Error>

Performs the conversion.

impl StructuralPartialEq for Validate