Refactor doc search class to allow single document search

novelwriter/core/coretools.py

@@ -337,12 +337,15 @@ class DocSearch:
         """Iteratively search through documents in a project."""
         self._regEx.setPattern(self._buildPattern(search))
         logger.debug("Searching with pattern '%s'", self._regEx.pattern())
-
-        num = len(search)
         storage = project.storage
         for item in project.tree:
             if item.isFileType():
-                text = storage.getDocumentText(item.itemHandle)
+                results, capped = self.searchText(storage.getDocumentText(item.itemHandle))
+                yield item, results, capped
+        return
+
+    def searchText(self, text: str) -> tuple[list[tuple[int, int, str]], bool]:
+        """Search a piece of text for RegEx matches."""
         rxItt = self._regEx.globalMatch(text)
         count = 0
         capped = False
@@ -358,10 +361,7 @@ class DocSearch:
                 if count >= nwConst.MAX_SEARCH_RESULT:
                     capped = True
                     break
-
-                yield item, results, capped
-
-        return
+        return results, capped
 
     ##
     #  Internal Functions