Struct rsvg::xml::attributes::Attributes

source ·
pub struct Attributes {
    attrs: Box<[(QualName, DefaultAtom)]>,
    id_idx: Option<u16>,
    class_idx: Option<u16>,
}
Expand description

Iterable wrapper for libxml2’s representation of attribute/value.

See the new_from_xml2_attributes function for information.

Fields§

§attrs: Box<[(QualName, DefaultAtom)]>§id_idx: Option<u16>§class_idx: Option<u16>

Implementations§

Creates an iterable Attributes from the C array of borrowed C strings.

With libxml2’s SAX parser, the caller’s startElementNsSAX2Func callback gets passed a xmlChar ** for attributes, which comes in groups of (localname/prefix/URI/value_start/value_end). In those, localname/prefix/URI are NUL-terminated strings; value_start and value_end point to the start-inclusive and end-exclusive bytes in the attribute’s value.

Safety

This function is unsafe because the caller must guarantee the following:

  • attrs is a valid pointer, with (n_attributes * 5) elements.

  • All strings are valid UTF-8.

Returns the number of attributes.

Creates an iterator that yields (QualName, &'a str) tuples.

Trait Implementations§

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

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

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Checks if self is actually part of its subset T (and can be converted to it).
Use with care! Same as self.to_subset but without any property checks. Always succeeds.
The inclusion map: converts self to the equivalent element of its superset.
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Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
Performs the conversion.
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Performs the conversion.