I don't think that there's any need for two ![date] items. Also, it looks like you're missing a comma after the first ![date]. The way the line continuation and quotes are interpreted, I think what you have below is equivalent to:<br>
<br>GRAMMAR_MAPPING("[month], ![date][day], ![date]")<br><br>-Thomas<br><br><div class="gmail_quote">On Thu, Apr 30, 2009 at 3:10 AM, Yasaman Sefidgar <span dir="ltr"><<a href="mailto:yasaman.sefidgar@gmail.com">yasaman.sefidgar@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi,<br><br>I have defined a concept type with some items like this:<br>INT_ITEM(month)<br>INT_ITEM(day)<br>
<br>at the grammar mapping part, I have written like this:<br>GRAMMAR_MAPPING("[month], ![date]"\<br> "[day], ![date]")<br>
<br>it is possible in my task that either month or day be specified by user. when I start a session and I don't specify both day and month, the grammar mapping is not done successfully and the system asks me its request again. what should I do to solve this problem?<br>
<br>Best Regards<br><font color="#888888">Yasaman Sefidgar<br>
</font></blockquote></div><br>