LangStudies/App/RegM/Lectures/Lecture.4.Notes.md

Basic NFA Fragments

Single Character

RegExp: /^A$/
Psuedo: start A end

^ : Beginning of string : Str.Start $ : End of a string : Str.End

Machine: ->o.Start ---Glyph---> (o).Accepting

Epsilon-Transition

RegExp: /^$/ Psuedo: start end

Machine:

->o --epsilon--> (o)

Everyhing else can be built on top of these machines.

Start = Input, Accepting = Output