Struct quick_xml::events::attributes::Attribute

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pub struct Attribute<'a> {
    pub key: &'a [u8],
    pub value: Cow<'a, [u8]>,
}

Expand description

A struct representing a key/value XML attribute.

Field value stores raw bytes, possibly containing escape-sequences. Most users will likely want to access the value using one of the unescaped_value and unescape_and_decode_value functions.

Fields

key: &'a [u8]

The key to uniquely define the attribute.

If Attributes::with_checks is turned off, the key might not be unique.

value: Cow<'a, [u8]>

The raw value of the attribute.

Implementations

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impl<'a> Attribute<'a>

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pub fn unescaped_value(&self) -> Result<Cow<'_, [u8]>>

Returns the unescaped value.

This is normally the value you are interested in. Escape sequences such as > are replaced with their unescaped equivalents such as >.

This will allocate if the value contains any escape sequences.

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pub fn unescape_and_decode_value<B: BufRead>(
&self,
reader: &Reader
) -> Result<String>

Returns the unescaped and decoded string value.

This allocates a String in all cases. For performance reasons it might be a better idea to instead use one of:

unescaped_value(), as it doesn’t allocate when no escape sequences are used.
Reader::decode(), as it only allocates when the decoding can’t be performed otherwise.

Trait Implementations

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impl<'a> Clone for Attribute<'a>

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fn clone(&self) -> Attribute<'a>

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl<'a> Debug for Attribute<'a>

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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<'a> From<(&'a [u8], &'a [u8])> for Attribute<'a>

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fn from(val: (&'a [u8], &'a [u8])) -> Attribute<'a>

Creates new attribute from raw bytes. Does not apply any transformation to both key and value.

Examples

use quick_xml::events::attributes::Attribute;

let features = Attribute::from(("features".as_bytes(), "Bells &amp; whistles".as_bytes()));
assert_eq!(features.value, "Bells &amp; whistles".as_bytes());

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impl<'a> From<(&'a str, &'a str)> for Attribute<'a>

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fn from(val: (&'a str, &'a str)) -> Attribute<'a>

Creates new attribute from text representation. Key is stored as-is, but the value will be escaped.

Examples

use quick_xml::events::attributes::Attribute;

let features = Attribute::from(("features", "Bells & whistles"));
assert_eq!(features.value, "Bells &amp; whistles".as_bytes());

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