Struct SearchState 

pub struct SearchState {
    pub pattern: Option<Regex>,
    pub forward: bool,
    pub matches: Vec<Vec<(usize, usize)>>,
    pub generations: Vec<u64>,
    pub wrap_around: bool,
}

Per-row match cache keyed against the buffer’s dirty_gen. Live alongside the active pattern so re-running n doesn’t re-scan rows the buffer hasn’t touched.

Fields

pattern: Option<Regex>

Active pattern, if any. None clears highlighting and makes n / N no-op until the next / / ? commit.

forward: bool

true for /, false for ? — drives n vs N direction. Mirrors vim.last_search_forward; consolidated so future patches can drop the duplicate.

matches: Vec<Vec<(usize, usize)>>

matches[row] is the (byte_start, byte_end) runs cached on row, captured at gen[row]. Length grows lazily.

generations: Vec<u64>

Per-row generation tag. When the buffer’s dirty_gen for a row diverges, the row gets re-scanned on next access.

wrap_around: bool

Wrap past buffer ends. Mirrors Settings::wrapscan.

Implementations

impl SearchState

pub fn new() -> Self

Empty state — no pattern, forward direction, wraps.

pub fn set_pattern(&mut self, re: Option<Regex>)

Replace the active pattern. Drops the cached match runs so the next access re-scans against the new regex.

pub fn matches_for( &mut self, row: usize, line: &str, dirty_gen: u64, ) -> &[(usize, usize)]

Refresh matches[row] if either the row’s gen has rolled or we never scanned it. Returns the cached slice.

Trait Implementations

impl Clone for SearchState

fn clone(&self) -> SearchState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SearchState

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

Formats the value using the given formatter.

impl Default for SearchState

fn default() -> SearchState

Returns the “default value” for a type.