Optimizing search, buggy BlockArena on emscripten, cleanup MergeSort, address sanitizer, compile web on linux

src/text_editor/window_command.cpp

@@ -27,13 +27,13 @@ void CommandWindowLayout(Rect2I *rect, Int wx, Int wy) {
     n->document_rect = n->total_rect = CutBottom(rect, barsize);
 }
 
-Int FuzzyRate(String16 string, String16 with) {
+int32_t FuzzyRate(String16 string, String16 with) {
     ProfileFunction();
     if (with.len == 0) return 0;
-    Int points      = 0;
-    Int consecutive = 0;
-    Int with_i      = 0;
-    for (Int i = 0; i < string.len; i++) {
+    int32_t points      = 0;
+    int32_t consecutive = 0;
+    int32_t with_i      = 0;
+    for (int32_t i = 0; i < string.len; i++) {
         if (ToLowerCase(string.data[i]) == ToLowerCase(with[with_i])) {
             consecutive += 1;
             with_i += 1;
@@ -49,33 +49,25 @@ Int FuzzyRate(String16 string, String16 with) {
     return points;
 }
 
+inline bool MergeSortCompare(FuzzyPair *a, FuzzyPair *b) {
+    bool result = a->rating > b->rating;
+    return result;
+}
+
 Array<FuzzyPair> FuzzySearchLines(Allocator allocator, Buffer *buffer, Int line_min, Int line_max, String16 needle) {
     ProfileFunction();
     if (line_min < 0 || line_min >= buffer->line_starts.len) return {};
     if (line_max < 0 || line_min > buffer->line_starts.len) return {};
     Array<FuzzyPair> ratings = {allocator};
+    Reserve(&ratings, line_max - line_min + 4);
     for (Int i = line_min; i < line_max; i += 1) {
         String16 s = GetLineStringWithoutNL(buffer, i);
-        Int idx = 0;
-        if (Seek(s, u" || ", &idx)) {
-            s.len = idx;
-        }
-        s = Trim(s);
-        Int  rating = FuzzyRate(s, needle);
-        Add(&ratings, {i, rating});
-    }
-
-    // bubble sort
-    for (Int i = 0; i < ratings.len - 1; i++) {
-        for (Int j = 0; j < ratings.len - 1; j++) {
-            if (ratings[j].rating > ratings[j + 1].rating) {
-                FuzzyPair temp = ratings[j];
-                ratings[j]     = ratings[j + 1];
-                ratings[j + 1] = temp;
-            }
-        }
+        int32_t rating = FuzzyRate(s, needle);
+        Add(&ratings, {(int32_t)i, rating});
     }
 
+    Array<FuzzyPair> temp = Copy(allocator, ratings);
+    MergeSort(ratings.len, ratings.data, temp.data);
     return ratings;
 }