Struct LabelMap 

pub struct LabelMap(pub BTreeMap<String, PiiClass>);

Labels file format.

Accepts two equivalent shapes so adopters aren’t silently blocked by a keying convention mismatch:

• Bare entity keys (preferred, short): { "PER": "Name", "LOC": "Location" }.
• BIO-prefixed keys (mirrors CoNLL / HuggingFace id2label shape): { "B-PER": "Name", "I-PER": "Name", "B-LOC": "Location", "I-LOC": "Location" }.

Values are matched against PiiClass variants by lowercase name, falling back to PiiClass::custom(value) if no built-in matches. The sentinel value "drop" (or "ignore", "") removes the entry entirely so the detector silently skips that label.

Lookup (resolve) tries the full BIO tag first, then the bare entity type. Mixing both key shapes in a single file is allowed.

Tuple Fields

0: BTreeMap<String, PiiClass>

Implementations

impl LabelMap

pub fn get(&self, conll_label: &str) -> Option<&PiiClass>

pub fn resolve(&self, tag: &str, entity: &str) -> Option<&PiiClass>

Resolve a CoNLL subword tag (e.g. "B-PER", "I-LOC", "PER") to a PiiClass. Accepts both BIO-prefixed labels.json entries and bare entity-type entries; tries the full tag first, then the stripped entity.

pub fn len(&self) -> usize

Number of retained mappings (after "drop"/"ignore" sentinels are filtered out by the parser). Used by the NER bootstrap tracing::info! so adopters can tell at a glance whether their labels.json is empty or misaligned.

pub fn is_empty(&self) -> bool

pub fn keys(&self) -> impl Iterator<Item = &str>

Iterate the retained label keys. Used at load time to warn when labels.json has zero overlap with the model’s id2label vocab — a silent-no-op symptom adopters otherwise only catch via missing detections at runtime.

Trait Implementations

impl Clone for LabelMap

fn clone(&self) -> LabelMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LabelMap

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

Formats the value using the given formatter.

impl Eq for LabelMap

impl PartialEq for LabelMap

fn eq(&self, other: &LabelMap) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for LabelMap