Introduction - If you have any usage issues, please Google them yourself
		 
Compiler class to do a small procedure, analytical methods were used to achieve four (LL1, operator priority, recursive descent, a simple lexical analysis) to complete the grammar is described in a subset of the Pascal language word lexical analysis program symbols. < Identifier>  → letters ︱ < identifier>  letters ︱ < identifier>  figures < unsigned integer>  → Digital ︱ < unsigned integer>  figures < single character boundaries Fu>  →+ ︱- ︱ ︱*  ︱ (︱) < two-character boundaries Fu>  → < greater than>  = ︱ < less than>  = ︱ < less than> >  ︱ < colon>  = ︱ < oblique vertical> * < less than>  → < < equal>  → = < greater than>  →>  < colon>  →: < oblique vertical>  →/recognition of language reserved word: begin end if then else for do while and or not