fix: invert or a | !a

Author: Conni2461

src/fzf.c

@@ -1177,7 +1177,11 @@ int32_t fzf_get_score(const char *text, fzf_pattern_t *pattern,
       }
 
       if (term->inv) {
-        current_score = 0;
+        if (term_set->size > 1) {
+          current_score = 1;
+        } else {
+          current_score = 0;
+        }
         matched = true;
       }
     }

test/fzf_lib_spec.lua

@@ -54,6 +54,12 @@ describe("fzf", function()
     fzf.free_pattern(p)
   end)
 
+  it("can get the score for issue 52", function()
+    local p = fzf.parse_pattern("a | !a", 0)
+    eq(1, fzf.get_score("test/minrc.vim", p, slab))
+    fzf.free_pattern(p)
+  end)
+
   it("can get the pos for simple pattern", function()
     local p = fzf.parse_pattern("fzf", 0)
     eq({ 7, 6, 5 }, fzf.get_pos("src/fzf", p, slab))

test/test.c

@@ -643,6 +643,12 @@ TEST(ScoreIntegration, invertAnd) {
   score_wrapper("!fzf !test", input, expected);
 }
 
+TEST(ScoreIntegration, invertOr) {
+  char *input[] = {"Makefile", "test/minrc", NULL};
+  int expected[] = {16, 1};
+  score_wrapper("a | !a", input, expected);
+}
+
 TEST(ScoreIntegration, withEscapedSpace) {
   char *input[] = {"file ", "file lua", "lua", NULL};
   int expected[] = {0, 200, 0};