Function esparse::skip::balanced_parens [−][src]
pub fn balanced_parens<'f, 's>(
lex: &mut Lexer<'f, 's>,
nesting: usize
) -> Result<()>
Skip a balanced tree of parentheses, i.e., (
and )
.
nesting
should be nonzero, and describes the depth of parenthesis nesting the lexer is at when entering this function.
Examples
use esparse::{lex, skip}; let mut lexer = lex::Lexer::new_unnamed("(1 * (2 + 3)) ** 4"); assert_eq!(lexer.advance().tt, lex::Tt::Lparen); skip::balanced_parens(&mut lexer, 1)?; assert_eq!(lexer.here().tt, lex::Tt::StarStar);