it's rule-based engine, two .c files with <2K lines of .c total. This snippet should give you a good idea what the code is like: if (strstr(input, "who is"

it's rule-based engine, two .c files with <2K lines of .c total. This snippet should give you a good idea what the code is like: if (strstr(input, "who is") || strstr(input, "what is")) { intent_identity = true; } That's like 1960-s style rules engine, except even more basic.