Enum quick_xml::events::attributes::AttrError

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pub enum AttrError {
    ExpectedEq(usize),
    ExpectedValue(usize),
    UnquotedValue(usize),
    ExpectedQuote(usize, u8),
    Duplicated(usize, usize),
}
Expand description

Errors that can be raised during parsing attributes.

Recovery position in examples shows the position from which parsing of the next attribute will be attempted.

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ExpectedEq(usize)

Attribute key was not followed by =, position relative to the start of the owning tag is provided.

Example of input that raises this error:

<tag key another="attribute"/>
<!--     ^~~ error position, recovery position (8) -->

This error can be raised only when the iterator is in XML mode.

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ExpectedValue(usize)

Attribute value was not found after =, position relative to the start of the owning tag is provided.

Example of input that raises this error:

<tag key = />
<!--       ^~~ error position, recovery position (10) -->

This error can be returned only for the last attribute in the list, because otherwise any content after = will be threated as a value. The XML

<tag key = another-key = "value"/>
<!--                   ^ ^- recovery position (24) -->
<!--                   '~~ error position (22) -->

will be treated as Attribute { key = b"key", value = b"another-key" } and or Attribute is returned, or AttrError::UnquotedValue is raised, depending on the parsing mode.

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UnquotedValue(usize)

Attribute value is not quoted, position relative to the start of the owning tag is provided.

Example of input that raises this error:

<tag key = value />
<!--       ^    ^~~ recovery position (15) -->
<!--       '~~ error position (10) -->

This error can be raised only when the iterator is in XML mode.

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ExpectedQuote(usize, u8)

Attribute value was not finished with a matching quote, position relative to the start of owning tag and a quote is provided. That position is always a last character in the tag content.

Example of input that raises this error:

<tag key = "value  />
<tag key = 'value  />
<!--               ^~~ error position, recovery position (18) -->

This error can be returned only for the last attribute in the list, because all input was consumed during scanning for a quote.

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Duplicated(usize, usize)

An attribute with the same name was already encountered. Two parameters define (1) the error position relative to the start of the owning tag for a new attribute and (2) the start position of a previously encountered attribute with the same name.

Example of input that raises this error:

<tag key = 'value'  key="value2" attr3='value3' />
<!-- ^              ^            ^~~ recovery position (32) -->
<!-- |              '~~ error position (19) -->
<!-- '~~ previous position (4) -->

This error is returned only when Attributes::with_checks() is set to true (that is default behavior).

Trait Implementations§

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impl Clone for AttrError

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fn clone(&self) -> AttrError

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
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impl Debug for AttrError

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

Formats the value using the given formatter. Read more
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impl Display for AttrError

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

Formats the value using the given formatter. Read more
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impl Error for AttrError

1.30.0 · source§

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any. Read more
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fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()
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fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
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fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)
Provides type-based access to context intended for error reports. Read more
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impl From<AttrError> for DeError

Available on crate feature serialize only.
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fn from(e: AttrError) -> Self

Converts to this type from the input type.
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impl From<AttrError> for Error

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fn from(error: AttrError) -> Self

Converts to this type from the input type.
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impl PartialEq for AttrError

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for AttrError

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impl StructuralPartialEq for AttrError

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.