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.
Variants§
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.
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.
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.
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.
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§
Source§impl Error for AttrError
impl Error for AttrError
1.30.0 · Source§fn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
1.0.0 · Source§fn description(&self) -> &str
fn description(&self) -> &str
impl Eq for AttrError
impl StructuralPartialEq for AttrError
Auto Trait Implementations§
impl Freeze for AttrError
impl RefUnwindSafe for AttrError
impl Send for AttrError
impl Sync for AttrError
impl Unpin for AttrError
impl UnwindSafe for AttrError
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)