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CharOffsetMap

Struct CharOffsetMap 

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pub struct CharOffsetMap { /* private fields */ }
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Cấu trúc hỗ trợ chuyển đổi $O(1)$ giữa UTF-8 byte offset và Unicode char offset.

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impl CharOffsetMap

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pub fn new(text: &str) -> Self

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pub fn byte_to_char(&self, byte_offset: usize) -> usize

Trả về char offset tương ứng với byte offset.

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pub fn convert_range( &self, start_byte: usize, end_byte: usize, ) -> (usize, usize)

Chuyển đổi tuple byte range (start_byte, end_byte) sang char range (start_char, end_char).

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pub fn byte_range_to_char_range( &self, start_byte: usize, end_byte: usize, ) -> (usize, usize)

Alias cho convert_range để đồng nhất phong cách gọi.

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