[][src]Function syntax_ext::format_foreign::printf::parse_next_substitution

pub fn parse_next_substitution(s: &str) -> Option<(Substitution, &str)>
🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Parse the next substitution from the input string.