1 files changed, 33 insertions, 0 deletions
diff --git a/crawl-ref/source/database.cc b/crawl-ref/source/database.cc
index f8c97a354c..6de91c3a1e 100644
--- a/crawl-ref/source/database.cc
+++ b/crawl-ref/source/database.cc
@@ -152,6 +152,28 @@ datum database_fetch(DBM *database, const std::string &key)
     return result;
 }
 
+std::vector<std::string> database_find_keys(DBM *database,
+                                            const std::string &regex,
+                                            bool ignore_case)
+{
+    text_pattern             tpat(regex, ignore_case);
+    std::vector<std::string> matches;
+
+    datum dbKey = dbm_firstkey(database);
+
+    while (dbKey.dptr != NULL)
+    {
+        std::string key((const char *)dbKey.dptr, dbKey.dsize);
+
+        if (tpat.matches(key))
+            matches.push_back(key);
+
+        dbKey = dbm_nextkey(database);
+    }
+
+    return (matches);
+}
+
 ///////////////////////////////////////////////////////////////////////////
 // Internal DB utility functions
 static void trim_right(std::string &s)
@@ -403,6 +425,17 @@ std::string getLongDescription(const std::string &key)
     return std::string((const char *)result.dptr, result.dsize);
 }
 
+std::vector<std::string> getLongDescriptionByRegex(const std::string &regex)
+{
+    if (!descriptionDB)
+    {
+        std::vector<std::string> empty;
+        return (empty);
+    }
+
+    return database_find_keys(descriptionDB, regex, true);
+}
+
 static std::vector<std::string> description_txt_paths()
 {
     std::vector<std::string> txt_file_names;