Struct CompiledPattern 

pub struct CompiledPattern { /* private fields */ }

A compiled regex paired with its replacement template. Construct with CompiledPattern::compile; use CompiledPattern::is_convergent to check the idempotency invariant before scanning.

Implementations

impl CompiledPattern

pub fn compile( pattern: &str, replacement: &str, opts: &PatternOptions, ) -> Result<Self>

Compile pattern into a regex and store replacement for later substitution. Returns crate::Error::InvalidRegex on syntax errors.

pub fn regex(&self) -> &Regex

pub fn replacement(&self) -> &str

pub fn is_convergent(&self) -> bool

True when the pattern is convergent given its replacement: re-applying the rewrite to its own output produces no further match. Catches non-idempotent rewrites such as a → aa.

Trait Implementations

impl Clone for CompiledPattern

fn clone(&self) -> CompiledPattern

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CompiledPattern

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

Formats the value using the given formatter.