Preserve parent variant for PGN of engine-defined game

[xboard.git] / pgntags.c

diff --git a/pgntags.c b/pgntags.c
index 74e4495..fd74df7 100644 (file)
--- a/pgntags.c
+++ b/pgntags.c
@@ -114,8 +114,13 @@ ParsePGNTag (char *tag, GameInfo *gameInfo)
        success = TRUE;
     } else if (StrCaseCmp(name, "Variant") == 0) {
         /* xboard-defined extension */
-        gameInfo->variant = StringToVariant(value);
-       success = TRUE;
+       success = StrSavePtr(value, &gameInfo->variantName) != NULL;
+        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     */
+        success = TRUE;
     } else if (StrCaseCmp(name, PGN_OUT_OF_BOOK) == 0) {
         /* [AS] Out of book annotation */
         success = StrSavePtr(value, &gameInfo->outOfBook) != NULL;
@@ -144,6 +149,7 @@ ParsePGNTag (char *tag, GameInfo *gameInfo)
 void
 PrintPGNTags (FILE *fp, GameInfo *gameInfo)
 {
+    char *p;
     fprintf(fp, "[Event \"%s\"]\n", gameInfo->event ? gameInfo->event : "?");
     fprintf(fp, "[Site \"%s\"]\n", gameInfo->site ? gameInfo->site : "?");
     fprintf(fp, "[Date \"%s\"]\n", gameInfo->date ? gameInfo->date : "?");
@@ -159,6 +165,8 @@ PrintPGNTags (FILE *fp, GameInfo *gameInfo)
        fprintf(fp, "[TimeControl \"%s\"]\n", gameInfo->timeControl);
     if (gameInfo->variant != VariantNormal)
         fprintf(fp, "[Variant \"%s\"]\n", VariantName(gameInfo->variant));
+    if (*(p = CollectPieceDescriptors()))
+        fprintf(fp, "[VariantMen \"%s\"]\n", p);
     if (gameInfo->extraTags)
        fputs(gameInfo->extraTags, fp);
 }