test1.txt // Function with Arithmetic Expression function main returns integer; begin 7 + 2 * (5 + 4); end; test2.txt // Function with a

test1.txt

// Function with Arithmetic Expression

function main returns integer;
begin
7 + 2 * (5 + 4);
end;

test2.txt

// Function with a lexical error

function main returns integer;
begin
7 * 2 $ (2 + 4);
end;

test3.txt

// Punctuation symbols

,;() =>

// Identifier

name name123

// Literals

123 ‘a’

// Logical operator

&

// Relational operator

<

// Arithmetic operators

+ *

// Reserved words

begin case character end endswitch function is integer list of returns switch when

test4.txt

// Function with All Reserved Words

function main returns character;
number: real is when 2 < 3, 0 : 1;
values: list of integer is (4, 5, 6);
begin
if number < 6.3 then
fold left + (1, 2, 3) endfold;
elsif 6 < 7 then
fold right + values endfold;
else
switch a is
case 1 => number + 2;
case 2 => number * 3;
others => number;
endswitch;
endif;
end;

test5.txt

// Program Containing the New Operators

function main b: integer, c: integer returns integer;
a: integer is 3;
begin
if (a < 2) | (a > 0) & (~b <> 0) then
7 – 2 / (9 % 4);
else
if b >= 2 | b <= 6 & !(c = 1) then
7 + 2 * (2 + 4);
else
a ^ 2;
endif;
endif;
end;

test6.txt

// Program Containing the New Comment, Modified Identifier
// and Real Literal and Hex and Character Literals

— This is the new style comment

function main b: integer, c: integer returns integer;
a: real is .3;
d: real is 5.7;
a__1: real is .4e2;
ab_c_d: real is 4.3E+1;
ab1_cd2: real is 4.5e-1;
hex: integer is #2aF;
char1: character is ‘C’;
char2: character is ‘\n’;
begin
hex + 2;
end;

test7.txt

// Function with Two Lexical Errors

function main returns integer;
begin
7 $ 2 ? (2 + 4);
end;

test8.txt

— Punctuation symbols

,:;() =>

// Valid identifiers

name_1
name_1__a2_ab3

// Invalid identifiers

name___2
_name3
name4_

// Integer Literals

23 #3aD

// Real Literals

123.45 .123 1.2E2 .1e+2 1.2E-2

// Character Literals

‘A’ ‘\n’

// Logical operators

& | !

// Relational operators

= <> > >= < <=

// Arithmetic operators

+ – * / % ^ ~

// Reserved words

begin case character else elsif end endcase endfold endif endswitch
fold function if integer is left list of others real returns right
switch then when

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