Enum PatternError 

pub enum PatternError<'a> {
    StringEscape(usize, &'a str),
    StringEnd(usize, &'a str),
    RegexEscape(usize, &'a str),
    RegexEnd(usize, &'a str),
    Token(usize, &'a str),
    UnknownParameter(usize, &'a str),
    UnknownPredicate(usize, &'a str),
    Regex(usize, &'a str, Error),
}

These are errors that may be returned by the pattern compiler when compiling a pattern.

“String” here refers to a string literal in the pattern, not the input string. The input string is referred to as “the pattern”.

Variants

StringEscape(usize, &'a str)

The pattern contains an invalid string escape.

StringEnd(usize, &'a str)

The pattern ends in the middle of a string literal.

RegexEscape(usize, &'a str)

The pattern contains an invalid regex escape.

RegexEnd(usize, &'a str)

The pattern ends in the middle of a regex literal.

Token(usize, &'a str)

The pattern contains characters that don’t make up a token.

UnknownParameter(usize, &'a str)

The pattern requests a parameter that wasn’t provided.

UnknownPredicate(usize, &'a str)

The pattern requests a predicate that wasn’t provided.

Regex(usize, &'a str, Error)

The pattern contains an invalid regex.

Trait Implementations

impl<'a> Debug for PatternError<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.