automatically applies longest shared prefix of suggestions

1 files changed, 22 insertions, 1 deletions

diff --git a/src/main.rs b/src/main.rs
index 2be6562..1dbd024 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -371,8 +371,9 @@ fn event_loop() {
                     }
                     parse::CompletionKind::None => continue,
                 };
-                
+
                 suggestions.sort_by(|x, y| x.delta.cmp(&y.delta));
+                suggestions.dedup_by(|x, y| x.delta == y.delta);
 
                 if suggestions.len() == 0 {
                     continue;
@@ -386,6 +387,26 @@ fn event_loop() {
                     continue;
                 }
 
+                // find longest shared prefix and type it
+                {
+                    let mut longest = &suggestions[0].delta[..];
+                    for s in suggestions.iter() {
+                        let mut new = longest;
+                        for i in 0..longest.len().min(s.delta.len()) {
+                            if longest[i] != s.delta[i] {
+                                break;
+                            } else {
+                                new = &s.delta[..=i];
+                            }
+                        }
+                        longest = new;
+                    }
+
+                    if !longest.is_empty() {
+                        se.type_bytes(longest);
+                    }
+                }
+
                 cursor::save();
 
                 // one line below