Cool! It looks very similar to a language we designed and implemented for a uni assignment years ago, using flex and bison: principal inicio entero

Cool! It looks very similar to a language we designed and implemented for a uni assignment years ago, using flex and bison: principal inicio entero x, y; leer (x); leer (y); si (x > 0) entonces si (y > 0) entonces imprimir (1); is si (y == 0) entonces imprimir (0); is si (y < 0) entonces imprimir (2); is is si (x == 0) entonces imprimir (0); is si (x < 0) entonces si (y > 0) entonces imprimir (4); is si (y == 0) entonces imprimir (0); is si (y < 0) entonces imprimir (3); is is fin