Struct MappingCharacterFilter 

pub struct MappingCharacterFilter { /* private fields */ }

Implementations

impl MappingCharacterFilter

pub fn new(mapping: HashMap<String, String>) -> LinderaResult<Self>

Create a new MappingCharacterFilter from a surface-to-replacement mapping.

Arguments

• mapping - A map from surface text to its replacement text. Keys must be non-empty; an empty key would match at every byte position under the leftmost-longest search strategy used by apply, which is never a meaningful mapping and is therefore rejected.

Returns

A MappingCharacterFilter, or an error if mapping contains an empty key or the underlying Aho-Corasick automaton fails to build.

pub fn from_config(config: &MappingCharacterFilterConfig) -> LinderaResult<Self>

Trait Implementations

impl CharacterFilter for MappingCharacterFilter

fn apply(&self, text: &mut String) -> LinderaResult<OffsetMapping>

Apply the filter using the OffsetMapping API.

Performs a single leftmost-longest pass over text with the underlying Aho-Corasick automaton: at each position the longest configured key wins, matches never overlap, and scanning resumes immediately after each match (mirroring docs/src/concepts/filters.md’s documented “longest-match search” semantics for this filter).

Arguments

• text - The text to filter, replaced in place with the mapped text.

Returns

An OffsetMapping recording one Transformation per replacement whose byte length differs from the original (length-preserving replacements are not recorded), in ascending filtered-offset order.

fn name(&self) -> &'static str

impl Clone for MappingCharacterFilter

fn clone(&self) -> MappingCharacterFilter

Returns a duplicate of the value.

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

Performs copy-assignment from source.