Module nom::error [−][src]
Expand description
Error management
Parsers are generic over their error type, requiring that it implements
the error::ParseError<Input>
trait.
Structs
default error type, only contains the error’ location and code
alloc
This error type accumulates errors and their position when backtracking
through a parse tree. With some post processing (cf examples/json.rs
),
it can be used to display user friendly error messages
Enums
Traits
This trait is required by the context
combinator to add a static string
to an existing error
This trait is required by the map_res
combinator to integrate
error types from external functions, like std::str::FromStr
This trait must be implemented by the error type of a nom parser.
Functions
Combines an existing error with a new one created from the input position and an ErrorKind. This is useful when backtracking through a parse tree, accumulating error context on the way
Create a new error from an input position, a static string and an existing error. This is used mainly in the context combinator, to add user friendly information to errors when backtracking through a parse tree
alloc
Transforms a VerboseError
into a trace with input position information
std
Prints a message and the input if the parser fails.
Converts an ErrorKind to a number
Creates an error from the input position and an ErrorKind