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In nom, parser combinators enable the construction of sophisticated parsers by assembling simpler ones. This compositional approach supports modularity, reuse, and even recursive structures. Core Concepts Primitive parsers handle basic input elements like digits, specific characters, or whitespace. Combinators are higher-order functions that m ...

This means preceded will execute the first parser, successfully match the input, discard the first parser's result, and then continue with the second parser, returning its result. Basic Usage Example use nom::{ character::complete::{digit1, char}, combinator::opt, sequence::preceded, IResult, }; fn parse_number(input: &str) ...