Function safe_regex_compiler::parser::parse [−][src]
pub fn parse(regex: &[u8]) -> Result<FinalNode, String>
Expand description
Parses regex
as a regular expression.
Returns a FinalNode
which is the root of the
abstract syntax tree
(AST) of the expression.
Errors
On error, returns a string explaining the problem.
Examples
use safe_regex_compiler::parser::parse; use safe_regex_compiler::parser::FinalNode; assert_eq!( Ok(FinalNode::Byte(b'a')), parse(br"a") ); assert_eq!( Ok(FinalNode::Alt(vec![ FinalNode::Byte(b'a'), FinalNode::Byte(b'b'), FinalNode::Byte(b'c'), ])), parse(br"a|b|c"), ); assert_eq!( Err("missing closing `)`".to_string()), parse(br"(a"), );
See FinalNode
variants for more examples.