<set> and <get> tags are used to work with variables in AIML. Variables can be predefined variables or programmer created variables.
Syntax
<set> tag is used to set value in a variable.
<set name = "variable-name"> variable-value </set>
<get> tag is used to get value from a variable.
<get name = "variable-name"></get>
For example, consider the following conversation.
Human: I am Mahesh Robot: Hello Mahesh! Human: Good Night Robot: Good Night Mahesh! Thanks for the conversation!
Example
Create setget.aiml inside C > ab > bots > test > aiml and setget.aiml.csv inside C > ab > bots > test > aimlif directories.
setget.aiml
<?xml version = "1.0" encoding = "UTF-8"?>
<aiml version = "1.0.1" encoding = "UTF-8"?>
<category>
<pattern>I am *</pattern>
<template>
Hello <set name = "username"> <star/>! </set>
</template>
</category>
<category>
<pattern>Good Night</pattern>
<template>
Hi <get name = "username"/> Thanks for the conversation!
</template>
</category>
</aiml>
setget.aiml.csv
0,I am *,*,*, Hello <set name = "username"> <star/>! </set>,setget.aiml 0,Good Night,*,*, Hi <get name = "username"/> Thanks for the conversation!,setget.aiml
Execute the Program
Open the command prompt. Go to C > ab > and type the following command −
java -cp lib/Ab.jar Main bot = test action = chat trace = false
Verify the Result
You will see the following output −
Human: I am Mahesh Robot: Hello Mahesh! Human: Good Night Robot: Good Night Mahesh! Thanks for the conversation!