Contents

Cheat Sheet

ASCII Bin, oct, dec, hex, ascii and html representation.

Encoding

Base64 Encode/Decode The encoding and decoding of Base64.
URL Encode/Decode The encoding and decoding of URL.

Random

Random HEX Generate random hexadecimal strings.

GitHub

Punch Card Generate punch card for a public repo.

Compiler

Regex => NFA Convert simple regular expressions to nondeterministic finite automaton.
Regex => NFA => DFA Convert simple regular expressions to deterministic finite automaton.
Left factoring Left factoring.
Left recursion Try to eliminate left recursion.
CFG => LL(k) Try to convert context-free grammar to LL(k) class.
First & Follow Compute first and follow sets for context-free grammars.
LR(0)/SLR(1) Construct parsing table and automaton for LR(0)/SLR(1) grammars.
LR(1) Construct parsing table and automaton for LR(1) grammars.
LALR Construct parsing table and automaton for LALR grammars.