Trait artichoke::prelude::Regexp

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pub trait Regexp {
    type Error;

    // Required methods
    fn active_regexp_globals(&self) -> Result<usize, Self::Error>;
    fn set_active_regexp_globals(
        &mut self,
        count: usize
    ) -> Result<(), Self::Error>;
    fn clear_regexp(&mut self) -> Result<(), Self::Error>;
}
Expand description

Track the state of Regexp special global variables and global interpreter state.

Required Associated Types§

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type Error

Concrete error type for errors encountered when manipulating Regexp state.

Required Methods§

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fn active_regexp_globals(&self) -> Result<usize, Self::Error>

Retrieve the current number of set Regexp global variables.

Regexp global variables like $1 and $7 are defined after certain Regexp matching methods for each capturing group in the regular expression.

Per the Ruby documentation:

$1, $2 and so on contain text matching first, second, etc capture group.

Errors

If the Regexp state is inaccessible, an error is returned.

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fn set_active_regexp_globals(&mut self, count: usize) -> Result<(), Self::Error>

Set the current number of set Regexp global variables.

Regexp global variables like $1 and $7 are defined after certain Regexp matching methods for each capturing group in the regular expression.

Per the Ruby documentation:

$1, $2 and so on contain text matching first, second, etc capture group.

Errors

If the Regexp state is inaccessible, an error is returned.

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fn clear_regexp(&mut self) -> Result<(), Self::Error>

Clear all Regexp state.

Errors

If the Regexp state is inaccessible, an error is returned.

Implementors§