pub struct RegexCaptures(_);
Expand description

Represents the match offsets of each capturing group in a match.

The first, or 0th capture group, always corresponds to the entire match and is guaranteed to be present when a match occurs. The next capture group, at index 1, corresponds to the first capturing group in the regex, ordered by the position at which the left opening parenthesis occurs.

Note that not all capturing groups are guaranteed to be present in a match. For example, in the regex, (?P<foo>\w)|(?P<bar>\W), only one of foo or bar will ever be set in any given match.

In order to access a capture group by name, you’ll need to first find the index of the group using the corresponding matcher’s capture_index method, and then use that index with RegexCaptures::get.

Trait Implementations§

Return the total number of capturing groups. This includes capturing groups that have not matched anything.
Return the capturing group match at the given index. If no match of that capturing group exists, then this returns None. Read more
Returns true if and only if these captures are empty. This occurs when len is 0. Read more
Expands all instances of $name in replacement to the corresponding capture group name, and writes them to the dst buffer given. Read more
Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.