Crate xmlparser

source ·
Expand description

xmlparser is a low-level, pull-based, zero-allocation XML 1.0 parser.

§Example

for token in xmlparser::Tokenizer::from("<tagname name='value'/>") {
    println!("{:?}", token);
}

§Why a new library?

This library is basically a low-level XML tokenizer that preserves the positions of the tokens and is not intended to be used directly. If you are looking for a higher level solution, check out roxmltree.

§Benefits

  • All tokens contain StrSpan structs which represent the position of the substring in the original document.
  • Good error processing. All error types contain the position (line:column) where it occurred.
  • No heap allocations.
  • No dependencies.
  • Tiny. ~1400 LOC and ~30KiB in the release build according to cargo-bloat.
  • Supports no_std builds. To use without the standard library, disable the default features.

§Limitations

  • Currently, only ENTITY objects are parsed from the DOCTYPE. All others are ignored.
  • No tree structure validation. So an XML like <root><child></root></child> or a string without root element will be parsed without errors. You should check for this manually. On the other hand <a/><a/> will lead to an error.
  • Duplicated attributes is not an error. So XML like <item a="v1" a="v2"/> will be parsed without errors. You should check for this manually.
  • UTF-8 only.

§Safety

  • The library must not panic. Any panic is considered a critical bug and should be reported.
  • The library forbids unsafe code.

Structs§

Enums§

Traits§

  • Extension methods for XML-subset only operations.
  • Extension methods for XML-subset only operations.