Module parser_ext

Extensions to the nom Parser trait which add postfix versions of the common combinators. See ParserExt for details.

Structs

• AllConsuming
  Parser which returns an error if the subparser didn’t consume the whole input.
• ArrayParser
  Parser which parses an array by running a subparser in a loop a fixed number of times.
• Complete
  Parser which returns an error if the subparser returned Incomplete.
• Context
  Parser which attaches additional context to any errors returned by the subparser.
• Cut
  Parser which returns a Failure if the subparser returned an error. This prevents other branches from being tried.
• Delimited
  Parser which gets and discards a delimiting value both before and after the main subparser. Returns the output from the main subparser if all were successful.
• FromStrCutParser
  Parser which parses something via FromStr, using a subparser as a recognizer for the string to pass to from_str. Returns Err::Failure if the FromStr parse fails.
• FromStrParser
  Parser which parses something via FromStr, using a subparser as a recognizer for the string to pass to from_str.
• MapRes
  Parser which runs a fallible mapping function on the output of the subparser. Any errors returned by the mapping function are transformed into a parse error.
• MapResCut
  Parser which runs a fallible mapping function on the output of the subparser. Any errors returned by the mapping function are transformed into a parse failure.
• Not
  Parser which returns failure if the subparser succeeds, and succeeds if the subparser fails.
• Optional
  Parser which wraps the subparser output in an Option, and returns a successful None output if it fails.
• OptionalPreceded
  Parser which gets an optional output from a prefix subparser before running the main subparser. Returns the output even if the prefix subparser returns error.
• Peek
  Parser which runs a subparser but doesn’t consume any input
• Preceded
  Parser which gets and discards an output from a prefix subparser before running the main subparser. Returns the output from the main subparser if both were successful.
• Recognize
  Parser which, when successful, discards the output of the subparser and instead returns the consumed input.
• RefParser
  Parser wrapping a mutable reference to a subparser.
• ReplaceError
  Parser which replaces errors coming from the inner parser.
• SeparatedArrayParser
  Parser which parses an array by running a subparser in a loop a fixed number of times, parsing a separator between each item.
• Terminated
  Parser which gets and discards an output from a second subparser, returning the output from the original parser if both were successful.
• Value
  Parser which, when successful, discards the output of the subparser and instead returns a clone of a value.
• Verify
  Parser which checks the output of its subparser against a verifier function.
• WithRecognized
  Parser which, when successful, returns the result of the inner parser and also the consumed input

Traits

• ParserExt
  Additional postfix parser combinators, as a complement to Parser. Mostly these are postfix versions of the combinators in nom::combinator and nom::sequence, with some additional combinators original to nom-supreme.