X-Git-Url: http://winboard.nl/cgi-bin?p=xboard.git;a=blobdiff_plain;f=backend.c;h=a612db1d1eb5ddc0f089ec5f0d63a958afb0cba7;hp=3605468c9b17595c0055a3bf0fb15f5e701d116d;hb=98aa02bda540f17f1f50be00e494efafe439b004;hpb=de954fa0f31cc935b5ad61819a04de2713cd98ed

diff --git a/backend.c b/backend.c
index 3605468..a612db1 100644
--- a/backend.c
+++ b/backend.c
@@ -2124,7 +2124,8 @@ read_from_ics(isr, closure, data, count, error)
 	    if(buf_len >= 5 && buf[buf_len-5]=='\n' && buf[buf_len-4]=='\\' && 
                                buf[buf_len-3]==' '  && buf[buf_len-2]==' '  && buf[buf_len-1]==' ') {
 		buf_len -= 5; // [HGM] ICS: join continuation line of Lasker 2.2.3 server with previous
-		buf[buf_len++] = ' '; // replace by space (assumes ICS does not break lines within word)
+		if(buf_len == 0 || buf[buf_len-1] != ' ')
+		   buf[buf_len++] = ' '; // add space (assumes ICS does not break lines within word)
 	    }
 	}