remove trailing \r in xboard output

there is an annoying carriage return (displayed as ^M) at the end of the PV in the engine-output window, not
only with Fairy-Max, but also with UCI engine running under Polyglot. This patch replaces the trailing CR that Linux programs send after the PV line y a space.

diff --git a/xengineoutput.c b/xengineoutput.c
index 2df13d3..70235ab 100644 (file)
--- a/xengineoutput.c
+++ b/xengineoutput.c
@@ -230,6 +230,10 @@ static void InsertIntoMemo( int which, char * text )
 {
        Arg arg; XawTextBlock t; Widget edit;
 
+       /* the backend adds \r\n, which is needed for winboard, 
+        * for xboard we delete them again over here */
+       if(t.ptr = strchr(text, '\r')) *t.ptr = ' ';
+
        t.ptr = text; t.firstPos = 0; t.length = strlen(text); t.format = XawFmt8Bit;
        edit = XtNameToWidget(engineOutputShell, which ? "*form2.text" : "*form.text");
        XawTextReplace(edit, 0, 0, &t);