Struct UnknownFields 

pub struct UnknownFields { /* private fields */ }

Container for unknown/unrecognized fields during parsing.

When parsing a record, any parameters that are not explicitly handled by the record type are collected here. During serialization, these unknown fields are written back, preserving the original file content.

Implementations

impl UnknownFields

pub fn new() -> Self

Create an empty UnknownFields container.

pub fn from_remaining_params( original: &ParameterCollection, known_keys: &[&str], ) -> Self

Create from remaining parameters after known fields have been extracted.

This compares the original parameter collection against a list of known keys, collecting any parameters that weren’t in the known list.

pub fn from_remaining_params_with_prefixes( original: &ParameterCollection, known_keys: &[&str], indexed_prefixes: &[&str], ) -> Self

Create from remaining parameters with indexed prefix exclusion.

In addition to exact key matching, this method also excludes any parameters that start with the given prefixes followed by a digit (e.g., “X1”, “X2” for prefix “X”).

pub fn from_remaining_binary(data: Vec<u8>) -> Self

Create from remaining binary bytes.

pub fn merge_into_params(&self, params: &mut ParameterCollection)

Merge unknown parameters back into a parameter collection.

Parameters are written in their original order to preserve file structure as much as possible.

pub fn binary_data(&self) -> &[u8]

Get the unknown binary data.

pub fn binary_data_mut(&mut self) -> &mut Vec<u8>

Get mutable access to the unknown binary data.

pub fn is_empty(&self) -> bool

Check if there are any unknown fields.

pub fn param_count(&self) -> usize

Get count of unknown parameters.

pub fn binary_count(&self) -> usize

Get count of unknown binary bytes.

pub fn unknown_param_names(&self) -> &[String]

Get list of unknown parameter names (for debugging/logging).

pub fn get_param(&self, key: &str) -> Option<String>

Get a specific unknown parameter value.

pub fn set_param(&mut self, key: &str, value: &str)

Set or add an unknown parameter.

pub fn remove_param(&mut self, key: &str) -> bool

Remove an unknown parameter.

Trait Implementations

impl Clone for UnknownFields

fn clone(&self) -> UnknownFields

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UnknownFields

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

Formats the value using the given formatter.

impl Default for UnknownFields

fn default() -> UnknownFields

Returns the “default value” for a type.