Struct IndicatorValidator 

pub struct IndicatorValidator { /* private fields */ }

Validator for MARC field indicators

Implementations

impl IndicatorValidator

pub fn new() -> Self

Create a new validator with MARC21 standard rules

pub fn validate_field(&self, field: &Field) -> Result<()>

Validate a field’s indicators

Errors

Returns Err if indicators don’t meet validation rules for this field tag.

pub fn validate_indicators( &self, tag: &str, indicator1: char, indicator2: char, ) -> Result<()>

Validate indicators for a specific tag

Errors

Returns Err if indicators don’t meet validation rules.

pub fn get_indicator_meaning( &self, tag: &str, indicator_num: u8, value: char, ) -> Option<String>

Get the semantic meaning of an indicator value for a field

Returns the human-readable meaning if available, or None if the indicator is semantic or not defined for this field.

pub fn get_indicator_meanings( &self, tag: &str, indicator_num: u8, ) -> Vec<IndicatorMeaning>

Get all semantic meanings for a field’s indicator

Returns a vector of (value, meaning) pairs for a given field indicator.

pub fn get_rules(&self, tag: &str) -> Option<&IndicatorRules>

Get the validation rules for a tag

Trait Implementations

impl Debug for IndicatorValidator

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

Formats the value using the given formatter.

impl Default for IndicatorValidator

fn default() -> Self

Returns the “default value” for a type.