State transition diagrams Example. Identifiers (Chapter 8) - first character is a letter ( 1 ) - remaining characters are letters, digits (d), underscores (u) - an underscore cannot be the last character and is not followed by another underscore ld 4 1 lud
Example 2. E = { 0 , 1} All strings with substring DIQ Regexi DFA : > A 1 (0+ 1 ) * 010 (0+1)* 1 B 0 C 7 1 20,1 G 1
Definition. A deterministic state diagram (determ. finite automation, DFA) is a 5-tuple (Q, E, S, q0, F) - - Q is a finite set of states 1 I is the input alphabet - 8: QXE->Q is the partial transition function - q. EQ is the start state - FS Q is set of accept states final states