java -jar Grephy.jar -r “RegEx” -f “Input file.txt”
java -jar Grephy.jar -r “(ab)*“ -f “simple.txt”
-r “RegEx” – The input RegEx (required)
-f “input file.txt” – The input file the RegEx will check (required)
-n “nfa file name” – The name of the nfa output file (optinal)
-d “dfa file name” – The name of the dfa output file (optinal)
-c “completed file name” – The name of the completed test file (optinal)
-h -help – Brings up this help menu
-debug – Enables debug mode
Parameter Order is not important
* Asterisk, or Splat, means the proceeding character or list of characters does not have to be there but may repeat; 0 or more times
+ Plus means the proceeding character or list of characters must be there but may repeat; 1 or more times
( ) Parenthesis group characters together typically followed by a Plus or Splat.
All other characters or symbols may be used in the test file or language.
simple.txt a simple single line file that matches (ab)*
multiple.txt a multi-line file that matches a* or (a)*
negative.txt a multi-line file that does NOT matches any particular expression Looks like it would take (ab)*
t.txt a very large and inclusive file, no set expression matches; a*b*c* is a good mix of pass/fails
t2.txt a simpler test file was used to test (ab)* and (ab)*c
numbers.txt a test file for testing numbers that matches 1*01
fun.txt a test file for testing symbols that matches #*^*@
https://github.com/Chris221/grephy/releases
https://github.com/Chris221/grephy
https://dreampuf.github.io/GraphvizOnline/