Struct LineIndex 

pub struct LineIndex { /* private fields */ }

Implementations

impl LineIndex

pub fn new() -> Self

pub fn new_starting_at(start_byte: usize) -> Self

Construct a line index that begins at the given byte offset. Bytes before start_byte are never scanned and never appear in line_range. Used by --tail to skip past the head of the source.

pub fn set_head_cap(&mut self, cap: usize)

Limit the index to the first N logical lines from the start point. line_count clamps to this and extend_to_byte stops scanning past it. Used by --head N.

pub fn line_count(&self) -> usize

pub fn extend_to_line(&mut self, n: usize, src: &dyn Source)

pub fn extend_to_end(&mut self, src: &dyn Source)

pub fn notice_new_bytes(&mut self, src: &dyn Source)

pub fn line_range(&self, n: usize, src: &dyn Source) -> Range<usize>

Byte range of line n (excluding the trailing newline). Caller must ensure n < line_count() and the index has scanned through the line.