[][src]Module combine::parser::combinator

Various combinators which do not fit anywhere else.

Structs

AndThen
AnyPartialState
AnyPartialStateParser
AnySendPartialState
AnySendPartialStateParser
Factory
FlatMap
FromStr
Ignore
Lazy
LookAhead
Map
NoPartial
NotFollowedBy
Opaque
Recognize
Try

Traits

StrLike

Functions

and_then

Equivalent to p.and_then(f).

any_partial_state

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.

any_send_partial_state

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

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)

factory

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.

flat_map

Equivalent to p.flat_map(f).

from_str

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.

lazy

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

look_ahead(p) acts as p but doesn't consume input on success.

map

Equivalent to p.map(f).

no_partial
not_followed_by

Succeeds only if parser fails. Never consumes any input.

opaque

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.

recognize

Constructs a parser which returns the tokens parsed by parser accumulated in F: Extend<P::Input::Item> instead of P::Output.

try[
Deprecated
]

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

FnOpaque

Alias over Opaque where the function can be a plain function pointer (does not need to capture any values)