Struct Transformation 

pub struct Transformation {
    pub original_start: usize,
    pub original_end: usize,
    pub filtered_start: usize,
    pub filtered_end: usize,
}

A transformation record for offset mapping between original and filtered text.

This structure captures a single text transformation, recording how a specific segment of the original text maps to a segment in the filtered text.

Example

For the transformation “㍑” → “リットル”:

let transformation = Transformation::new(
    6, 9,    // original: "㍑" at bytes 6-9
    2, 14    // filtered: "リットル" at bytes 2-14  
);

This allows precise mapping between any position in the filtered text back to the corresponding position in the original text.

Fields

original_start: usize

Start position in the original text (in bytes)

original_end: usize

End position in the original text (in bytes)

filtered_start: usize

Start position in the filtered text (in bytes)

filtered_end: usize

End position in the filtered text (in bytes)

Implementations

impl Transformation

pub fn new( original_start: usize, original_end: usize, filtered_start: usize, filtered_end: usize, ) -> Self

Trait Implementations

impl Clone for Transformation

fn clone(&self) -> Transformation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Transformation

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

Formats the value using the given formatter.

impl PartialEq for Transformation

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Transformation