Module combine::parser::combinator
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Various combinators which do not fit anywhere else.
Structs
Traits
Functions
Equivalent to
p.and_then(f).Returns a parser where
P::PartialState is boxed. Useful as a way to avoid writing the type
since it can get very large after combining a few parsers.Returns a parser where
P::PartialState is boxed. Useful as a way to avoid writing the type
since it can get very large after combining a few parsers.attempt(p) behaves as p except it acts as if the parser hadn’t consumed any input if p fails
after consuming input. (alias for try)Constructs the parser lazily on each
parse_* call. This is similar to lazy but it
allows different parsers to be returned on each call to p while still reporting the correct
errors.Equivalent to
p.flat_map(f).Takes a parser that outputs a string like value (
&str, String, &[u8] or Vec<u8>) and parses it
using std::str::FromStr. Errors if the output of parser is not UTF-8 or if
FromStr::from_str returns an error.Constructs the parser lazily on each
parse_* call. Can be used to effectively reduce the
size of deeply nested parsers as only the function producing the parser is stored.look_ahead(p) acts as p but doesn’t consume input on success.Succeeds only if
parser fails.
Never consumes any input.Creates a parser from a function which takes a function that are given the actual parser.
Though convoluted this makes it possible to hide the concrete parser type without
Box or
losing the full information about the parser as is the case of parser.Constructs a parser which returns the tokens parsed by
parser accumulated in
F: Extend<P::Input::Item> instead of P::Output.tryDeprecated
try(p) behaves as p except it acts as if the parser hadn’t consumed any input if p fails
after consuming input.Type Definitions
Alias over
Opaque where the function can be a plain function pointer (does not need to
capture any values)