@ -217,8 +217,11 @@ impl Command {
split_selection , "Split selection into subselections on regex matches" ,
split_selection_on_newline , "Split selection on newlines" ,
search , "Search for regex pattern" ,
rsearch , "Reverse search for regex pattern" ,
search_next , "Select next search match" ,
search_prev , "Select previous search match" ,
extend_search_next , "Add next search match to selection" ,
extend_search_prev , "Add previous search match to selection" ,
search_selection , "Use current selection as search pattern" ,
global_search , "Global Search in workspace folder" ,
extend_line , "Select current line, if already selected, extend to next line" ,
@ -1170,38 +1173,62 @@ fn split_selection_on_newline(cx: &mut Context) {
doc . set_selection ( view . id , selection ) ;
}
fn search_impl ( doc : & mut Document , view : & mut View , contents : & str , regex : & Regex , extend : bool ) {
fn search_impl (
doc : & mut Document ,
view : & mut View ,
contents : & str ,
regex : & Regex ,
movement : Movement ,
direction : Direction ,
) {
let text = doc . text ( ) . slice ( .. ) ;
let selection = doc . selection ( view . id ) ;
// Get the right side of the primary block cursor.
let start = text . char_to_byte ( graphemes ::next_grapheme_boundary (
text ,
selection . primary ( ) . cursor ( text ) ,
) ) ;
// Get the right side of the primary block cursor for forward search, or the
//grapheme before the start of the selection for reverse search.
let start = match direction {
Direction ::Forward = > text . char_to_byte ( graphemes ::next_grapheme_boundary (
text ,
selection . primary ( ) . to ( ) ,
) ) ,
Direction ::Backward = > text . char_to_byte ( graphemes ::prev_grapheme_boundary (
text ,
selection . primary ( ) . from ( ) ,
) ) ,
} ;
//A regex::Match returns byte-positions in the str. In the case where we
//do a reverse search and wraparound to the end, we don't need to search
//the text before the current cursor position for matches, but by slicing
//it out, we need to add it back to the position of the selection.
let mut offset = 0 ;
// use find_at to find the next match after the cursor, loop around the end
// Careful, `Regex` uses `bytes` as offsets, not character indices!
let mat = regex
. find_at ( contents , start )
. or_else ( | | regex . find ( contents ) ) ;
let mat = match direction {
Direction ::Forward = > regex
. find_at ( contents , start )
. or_else ( | | regex . find ( contents ) ) ,
Direction ::Backward = > regex . find_iter ( & contents [ .. start ] ) . last ( ) . or_else ( | | {
offset = start ;
regex . find_iter ( & contents [ start .. ] ) . last ( )
} ) ,
} ;
// TODO: message on wraparound
if let Some ( mat ) = mat {
let start = text . byte_to_char ( mat . start ( ) ) ;
let end = text . byte_to_char ( mat . end ( ) ) ;
let start = text . byte_to_char ( mat . start ( ) + offset ) ;
let end = text . byte_to_char ( mat . end ( ) + offset ) ;
if end = = 0 {
// skip empty matches that don't make sense
return ;
}
let selection = if extend {
selection . clone ( ) . push ( Range ::new ( start , end ) )
} else {
selection
let selection = match movement {
Movement ::Extend = > selection . clone ( ) . push ( Range ::new ( start , end ) ) ,
Movement ::Move = > selection
. clone ( )
. remove ( selection . primary_index ( ) )
. push ( Range ::new ( start , end ) )
. push ( Range ::new ( start , end ) ) ,
} ;
doc . set_selection ( view . id , selection ) ;
@ -1220,6 +1247,14 @@ fn search_completions(cx: &mut Context, reg: Option<char>) -> Vec<String> {
// TODO: use one function for search vs extend
fn search ( cx : & mut Context ) {
searcher ( cx , Direction ::Forward )
}
fn rsearch ( cx : & mut Context ) {
searcher ( cx , Direction ::Backward )
}
// TODO: use one function for search vs extend
fn searcher ( cx : & mut Context , direction : Direction ) {
let reg = cx . register . unwrap_or ( '/' ) ;
let ( _ , doc ) = current ! ( cx . editor ) ;
@ -1245,14 +1280,14 @@ fn search(cx: &mut Context) {
if event ! = PromptEvent ::Update {
return ;
}
search_impl ( doc , view , & contents , & regex , false ) ;
search_impl ( doc , view , & contents , & regex , Movement ::Move , direction ) ;
} ,
) ;
cx . push_layer ( Box ::new ( prompt ) ) ;
}
fn search_next_ impl( cx : & mut Context , extend: bool ) {
fn search_next_ or_prev_ impl( cx : & mut Context , movement: Movement , direction : Direction ) {
let ( view , doc ) = current ! ( cx . editor ) ;
let registers = & cx . editor . registers ;
if let Some ( query ) = registers . read ( '/' ) {
@ -1267,7 +1302,7 @@ fn search_next_impl(cx: &mut Context, extend: bool) {
. case_insensitive ( case_insensitive )
. build ( )
{
search_impl ( doc , view , & contents , & regex , extend ) ;
search_impl ( doc , view , & contents , & regex , movement, direction ) ;
} else {
// get around warning `mutable_borrow_reservation_conflict`
// which will be a hard error in the future
@ -1279,11 +1314,18 @@ fn search_next_impl(cx: &mut Context, extend: bool) {
}
fn search_next ( cx : & mut Context ) {
search_next_ impl( cx , false ) ;
search_next_ or_prev_impl( cx , Movement ::Move , Direction ::Forward ) ;
}
fn search_prev ( cx : & mut Context ) {
search_next_or_prev_impl ( cx , Movement ::Move , Direction ::Backward ) ;
}
fn extend_search_next ( cx : & mut Context ) {
search_next_impl ( cx , true ) ;
search_next_or_prev_impl ( cx , Movement ::Extend , Direction ::Forward ) ;
}
fn extend_search_prev ( cx : & mut Context ) {
search_next_or_prev_impl ( cx , Movement ::Extend , Direction ::Backward ) ;
}
fn search_selection ( cx : & mut Context ) {
Gygaxis Vainhardt
3 years ago
committed by
GitHub