Skip <range> elements with begin > end

diff --git a/src/fcxml.c b/src/fcxml.c
index 1aa3e4c..ff30b7b 100644 (file)
--- a/src/fcxml.c
+++ b/src/fcxml.c
@@ -1148,10 +1148,13 @@ FcParseBlank (FcConfigParse *parse)
                goto bail;
            break;
        case FcVStackRange:
-           for (i = v->u.range.begin; i <= v->u.range.end; i++)
+           if (v->u.range.begin <= v->u.range.end)
            {
-               if (!FcBlanksAdd (parse->config->blanks, i))
-                   goto bail;
+             for (i = v->u.range.begin; i <= v->u.range.end; i++)
+             {
+                 if (!FcBlanksAdd (parse->config->blanks, i))
+                     goto bail;
+             }
            }
            break;
        default:
@@ -1428,14 +1431,17 @@ FcParseCharSet (FcConfigParse *parse)
                n++;
            break;
        case FcVStackRange:
-           for (i = vstack->u.range.begin; i <= vstack->u.range.end; i++)
+           if (vstack->u.range.begin <= vstack->u.range.end)
            {
-               if (!FcCharSetAddChar (charset, i))
-               {
-                   FcConfigMessage (parse, FcSevereWarning, "invalid character: 0x%04x", i);
-               }
-               else
-                   n++;
+             for (i = vstack->u.range.begin; i <= vstack->u.range.end; i++)
+             {
+                 if (!FcCharSetAddChar (charset, i))
+                 {
+                     FcConfigMessage (parse, FcSevereWarning, "invalid character: 0x%04x", i);
+                 }
+                 else
+                     n++;
+             }
            }
            break;
        default: