quick_xml::parser

Enum ElementParser

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pub enum ElementParser {
    Outside,
    SingleQ,
    DoubleQ,
}
Expand description

A parser that search a > symbol in the slice outside of quoted regions.

The parser considers two quoted regions: a double-quoted ("...") and a single-quoted ('...') region. Matches found inside those regions are not considered as results. Each region starts and ends by its quote symbol, which cannot be escaped (but can be encoded as XML character entity or named entity. Anyway, that encoding does not contain literal quotes).

To use a parser create an instance of parser and feed data into it. After successful search the parser will return Some with position of found symbol. If search is unsuccessful, a None will be returned. You typically would expect positive result of search, so that you should feed new data until you get it.

NOTE: after successful match the parser does not returned to the initial state and should not be used anymore. Create a new parser if you want to perform new search.

§Example

use quick_xml::parser::{ElementParser, Parser};

let mut parser = ElementParser::default();

// Parse `<my-element  with = 'some > inside'>and the text follow...`
// splitted into three chunks
assert_eq!(parser.feed(b"<my-element"), None);
// ...get new chunk of data
assert_eq!(parser.feed(b" with = 'some >"), None);
// ...get another chunk of data
assert_eq!(parser.feed(b" inside'>and the text follow..."), Some(8));
//                       ^       ^
//                       0       8

Variants§

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Outside

The initial state (inside element, but outside of attribute value).

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SingleQ

Inside a single-quoted region ('...').

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DoubleQ

Inside a double-quoted region ("...").

Trait Implementations§

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impl Clone for ElementParser

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fn clone(&self) -> ElementParser

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 ElementParser

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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 Default for ElementParser

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Parser for ElementParser

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fn feed(&mut self, bytes: &[u8]) -> Option<usize>

Returns number of consumed bytes or None if > was not found in bytes.

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fn eof_error() -> SyntaxError

Returns parse error produced by this parser in case of reaching end of input without finding the end of a parsed thing.
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impl PartialEq for ElementParser

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fn eq(&self, other: &ElementParser) -> 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 Copy for ElementParser

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impl Eq for ElementParser

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impl StructuralPartialEq for ElementParser

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, 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.