From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Thu, 16 Oct 2014 18:29:27 +0000 (+0200)
Subject: Preserve parent variant for PGN of engine-defined game
X-Git-Url: http://winboard.nl/cgi-bin?p=xboard.git;a=commitdiff_plain;h=1a37d04c539f7b8d702c9ea76009ee196969ca38

Preserve parent variant for PGN of engine-defined game

Rather than decoding an unknown variant name, (which will result in
'normal'), we keep the currently set (parent) variant when an
engine-defined variant is currently set that matches the name in
the PGN variant tag of the loaded game.
---

diff --git a/pgntags.c b/pgntags.c
index 616303d..fd74df7 100644
--- a/pgntags.c
+++ b/pgntags.c
@@ -115,7 +115,8 @@ ParsePGNTag (char *tag, GameInfo *gameInfo)
     } else if (StrCaseCmp(name, "Variant") == 0) {
         /* xboard-defined extension */
 	success = StrSavePtr(value, &gameInfo->variantName) != NULL;
-        gameInfo->variant = StringToVariant(value);
+        if(*value && strcmp(value, engineVariant)) // keep current engine-defined variant if it matches
+            gameInfo->variant = StringToVariant(value);
     } else if (StrCaseCmp(name, "VariantMen") == 0) {
         /* for now ignore this tag, as we have no method yet */
         /* for assigning the pieces to XBoard pictograms     */