Allow '[' for start of word of highlight match

PiperOrigin-RevId: 187900024

Author: jamesbutkovic

lib/model/ui/highlighted_text_model.dart

@@ -75,14 +75,17 @@ class TextHighlighter {
         if (index == -1) {
           break;
         } else {
+          String wrapperToken = index != 0 ? _matchText[index - 1] : null;
           if (!matchFromStartOfWord ||
               (index == 0 ||
                   // Some suggestions will have an alternate label appended to
-                  // the end of the suggestion and enclosed in parenthesis. We
-                  // want to highlight matches to words that are wrapped in
-                  // parenthesis so we add this check here.
-                  _matchText[index - 1] == "(" ||
-                  _matchText[index - 1] == " ")) {
+                  // the end of the suggestion and enclosed in parenthesis or
+                  // square brackets. We want to highlight matches to words that
+                  // are wrapped in square brackets and parenthesis so we add
+                  // this check here.
+                  wrapperToken == "(" ||
+                  wrapperToken == " " ||
+                  wrapperToken == "[")) {
             markers[index] = max(markers[index], token.length);
           }
           index += token.length;