AIML how to check if the input string matches one from a map - aiml

Question

I am trying to compare if the user's input matches the expected answer in AIML. I found this code that works well when the value is true but, for some reason I can't understand, fails when the match is false (there is no match for the and goes to UDC). If it worked, I could easily replace the second * with my maps result.
From: https://github.com/pandorabots/aiml-utilities/blob/master/lib/aimlstandardlibrary.aiml
<!-- STRING EQUALS-->
<category>
<pattern>XEQ * XS *</pattern>
<template>
<learn>
<category>
<pattern>
<eval>
<uppercase>XFALSE <star/></uppercase>
</eval>
</pattern>
<template>TRUE</template>
</category>
</learn>
<srai>XFALSE <star index="2"/></srai>
<learn>
<category>
<pattern>
<eval>
<uppercase>XFALSE <star/></uppercase>
</eval>
</pattern>
<template>FALSE</template>
</category>
</learn>
</template>
</category>
Does anyone have a better way to do it? Thanks a lot.

Answer 1

Did you include the entire library AIML file? You need this category for it to work (it's at the top of the file):
<category>
<pattern>
XFALSE *
</pattern>
<template>FALSE</template>
</category>
Without it, the UDC will be called. A more efficient method would be to use the condition tag. This removes the need to use the <learn> tag to set up extra categories:
<category>
<pattern>XEQ * XS *</pattern>
<template>
<think>
<set name="value1"><star/></set>
<set name="value2"><star index="2"/></set>
</think>
<condition name="value1">
<li><value><get name="value2"/></value>TRUE</li>
<li>FALSE</li>
</condition>
</template>
</category>