The Program below is written in V language to check for errors, evaluate and print out P and R$.$

START

INTEGER M$,$ N$,$ K$,$ P$,$ R$,$ H$,|,$ g$,$ k$,$ m

READ M$,$ N$,$ K

ASSIGN N $=$ M $-/$ K

READ g$,$ H$,|,$ m

P $=$ g$/$H$-$l$+$m$*$N$/$k

R$=$ M$+$N$/$K

WRITE P

STOP

The Grammar and Production rules:

EE Rule$1($R$1)$

E$>|$E$+$E$|$E$/$E$|$E$*$E$|$E$+$E$|$ R$2$ E$>|$E$1]$E$2/$E$3]...|$E$26|$ R$3[$E$1|$E$2|$E$3|...|$E$26]$J$>\{$JA$|$B$|$C$|...]$Z$|$alb$]$c$]...|$z$]\}$ R$4$

Note the following additional conditions in the above program:

e Words in capital letters are Keywords

e Words in small letters are Identifiers. Words in single letters from A $$ Z and a to z are also Identifiers

e $+,-,/,*$ are Operators

e Equals $=,$ and semi colon ; are Symbols

e Any string$/$line must contain: Keywords, Identifiers, Operators, or Symbols

e Symbols such as: $\%,$$$,$ &$,<,>,$; not allowed and would give Semantic error

e Two operators must not be combined such as: $+*$ not allowed and would give Syntax error,

same with other operators that are combined, for example $-/,*/,*+$

e Semi colon ; at the end of a line not allowed and would give Syntax error

e Numbers $0,1$ to $9$ are not allowed and would give Syntax error

e The acceptable keywords are: INTEGER, ASSIGN, READ, WRITE, START, STOP.

e Misspelling in the keywords such as: WRITEE not allowed and would give Lexical error

e Any other character on the keyboard different from all the above will give Syntax error.

e Note that text with yellow background in the above program have errors

$(1)$ Write a Java program that will go through the following stages of compiler to translate the

above program $($iteratively$)-$ line by line.

$(2)$ Write a Java program that will go through the following stages of compiler to translate the

above program $($iteratively$)$ all at once.

Note: Only lines $6$ and $7$ should go through all the seven $(7)$ stages of compiler:

P$=$g$/$H$-$ltm$*$N$/$k $$ and R$=$ M$+$N$/$K

The other lines should just check for errors and report the error $($if any$)$

OUR SEVEN STAGES OF COMPILER

$1)$ Lexical Analysis $($Scanner$)$

$2)$ Syntax Analysis $($Parser$)$

$3)$ Semantic Analysis $($Syntactic Analysis$)$

$4)$ Intermediate Code Representation $($ICR$)$

$5)$ Code Generation $($CG$)$

$6)$ Code Optimization $($CO$)$

$7)$ Target Machine code $($TMC$)$ in Binary