Crate resrap

A parsing library heavily leveraged by proc_macro.

In resrap, syntax trees are defined by the structure of data types implmenting Parse.

Given T : Parse, a resrap::Result<T> is returned by passing a Position to T::parse.

Along with the Parse trait, there’s also a derive macro of the same name which automatically implements Parse for a struct or enum, given each of its members or variants also implement it.

Structs

Literal

Parses a &'static str passed generically to Literal.

Padded

Given P : Parse, parses Option<Vec<Whitespace>> before and after parsing P, then returns P.

Pattern

Similar to Literal, except this will parse a Regex pattern.

Position

An Iterator over a string being parsed.

Span

A Position with length.

Spanned

A Parse wrapper for a Parse value and a Span.

Whitespace

Container for a whitespace char.

Enums

Error

An Error type created by an unsuccessful parse.

Traits

Parse

Constructs the implementing type by fully or partially consuming a Position.

ParseValue

Interface for parsing from values of Parse types, as opposed to the types themselves.

Type Definitions

Result

Derive Macros

Parse

Types that derive Parse will automatically implement Parse, provided its members or variants do also.