Struct SpanCalculator

pub struct SpanCalculator<'a> { /* private fields */ }

Automates the construction of Span instances for content within a string.

Implementations

impl<'a> SpanCalculator<'a>

pub fn new(string: &'a str) -> SpanCalculator<'a>

Creates a new span calculator for locations within the given string.

pub fn for_line_and_column( &mut self, line: usize, line_utf8_offset: usize, column_utf8_offset: usize, ) -> Position

Constructs a Position instance for a particular line and column in the string. You must provide the 0-indexed line number, the byte offset of the line within the string, and the UTF-8 byte offset of the character within the line.

pub fn for_line_and_grapheme( &mut self, line: usize, line_utf8_offset: usize, column_grapheme_offset: usize, ) -> Position

Constructs a Position instance for a particular line and column in the string. You must provide the 0-indexed line number, the byte offset of the line within the string, and the grapheme offset of the character within the line.