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Homework 2 #141

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fb2b7e1
Homework 1
haki-1 Oct 27, 2022
94748ba
Homework 2
haki-1 Nov 17, 2022
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100 changes: 100 additions & 0 deletions homework/82070/cpp2html/cpp2html.flex
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/* scanner for a C++ language */

%{
#define YY_NO_UNISTD_H
%}

DIGIT [0-9]
ID [a-zA-Z_$][a-zA-Z0-9_$]*
CHARSEQ '([^\']|(\\\'))*'
STR \"([^\"]|(\\\"))*\"
COMMENT \/\/.*\n|\/\*.*\*\/

%%

{DIGIT}+ {
printf("<span class=\"number\">%s</span>", yytext);
}

{DIGIT}+"."{DIGIT}* {
printf("<span class=\"number\">%s</span>", yytext);
}

alignas|alignof|and|and_eq|asm|atomic_cancel|atomic_commit|atomic_noexcept|auto|bitand|bitor|bool|break|case|catch|char|char8_t|char16_t|char32_t|class|compl|concept|const|consteval|constexpr|constinit|const_cast|continue|co_await|co_return|co_yield|decltype|default|delete|do|double|dynamic_cast|else|enum|explicit|export|extern|false|float|for|friend|goto|if|inline|int|long|mutable|namespace|new|noexcept|not|not_eq|nullptr|operator|or|or_eq|private|protected|public|reflexpr|register|reinterpret_cast|requires|return|short|signed|sizeof|static|static_assert|static_cast|struct|switch|synchronized|template|this|thread_local|throw|true|try|typedef|typeid|typename|union|unsigned|using|virtual|void|volatile|wchar_t|while|xor|xor_eq {
printf("<span class=\"keyword\">%s</span>", yytext);
}

#if|#elif|#else|#endif|#ifdef|#ifndef|#elifdef|#elifndef|#define|#undef|#include|#line|#error|#warning|#pragma|#defined|#__has_include|#__has_cpp_attribute|#export|#import|#module {
printf("<span class=\"preprocesor\">%s</span>", yytext);
}

{COMMENT} printf("<span class=\"comment\">%s</span>", yytext);

"<"{ID}">"|"<"{ID}"."[a-zA-Z0-9_$]*">" printf("<span class=\"inclusion\">&lt;%s</span>", yytext+1);

{ID} printf("<span class=\"identifier\">%s</span>", yytext);

{CHARSEQ}|{STR} printf("<span class=\"string\">%s</span>", yytext);

"."|"+"|"-"|"*"|"/"|"="|"!"|">"|"<"|"!="|"=="|">="|"<="|"++"|"--"|"%"|"+="|"-="|"*="|"/="|"%="|">>="|"<<="|"&="|"^="|"|="|"&&"|"||"|"&"|"|"|"^"|"~"|"<<"|">>" printf("<span class=\"operator\">%s</span>", yytext);

[;(){}:? \t\n,\[\]]+ printf("%s", yytext); /* echo the rest */

. printf( "Unrecognized character: %s\n", yytext );

%%

int yywrap()
{
return 1;
}


int main(int argc, const char* argv[])
{
++argv, --argc; /* skip over program name */
if ( argc > 0 )
yyin = fopen( argv[0], "r" );
else
yyin = stdin;

puts(
"<!doctype>"
"<html>"
"<head>"
" <title>");
puts(argv[0]);
puts("</title>"
" <style>"
" .keyword {"
" color: blue;"
" }"
" .number {"
" color: red;"
" }"
" .string {"
" color: orange;"
" }"
" .operator {"
" font-weight: 900;"
" }"
" .preprocesor {"
" color: purple;"
" }"
" .comment {"
" color: green;"
" }"
" .inclusion {"
" color: teal;"
" }"
" </style>"
"</head>"
"<body>"
" <pre class=\"code\">"
);
yylex();
puts("</pre></body></html>");
if ( argc > 0 )
fclose(yyin);
return 0;
}
79 changes: 79 additions & 0 deletions homework/82070/cpp2html/exampleInput.cpp
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#include <iostream>
#include <cmath>
using namespace std;

struct point {
double x;
double y;
void set_point(double, double);
void print();
};

int main() {
const int maxPoints = 32;
int counterPoints = 0, counterTriangle = 0, counterPokeball = 0, outside;
point arrPoints[maxPoints];
for (int i = 0; i < maxPoints; ++i) {
double x, y;
cin >> x >> y;
if (cin.good()) {
arrPoints[i].set_point(x, y);
counterPoints++;
}
else {
cin.clear();
cin.ignore(numeric_limits<streamsize>::max(), '\n');
break;
}
}
for (int i = 0; i < counterPoints; ++i) {
bool insideTriangle = false, insidePokeball = false;
point triangleVertex, lineCrossOx, lineCrossOy, pokeballCenter;
triangleVertex.set_point(2, 2);
lineCrossOx.set_point(6, 0);
lineCrossOy.set_point(0, 6);
pokeballCenter.set_point(-9, 0);
if (arrPoints[i].x >= triangleVertex.x
&& arrPoints[i].y >= triangleVertex.y
&& arrPoints[i].x * lineCrossOy.y + arrPoints[i].y * lineCrossOx.x <= lineCrossOx.x * lineCrossOy.y) {
insideTriangle = true;
counterTriangle++;
}
else {
const double smallCircleR = 1, largeCircleR = 3;
double distanceX = abs(arrPoints[i].x - pokeballCenter.x);
double distanceY = abs(arrPoints[i].y - pokeballCenter.y);
double distanceFromPokeballCenter = sqrt(distanceX * distanceX + distanceY * distanceY);
if (arrPoints[i].x >= pokeballCenter.x - largeCircleR
&& arrPoints[i].x <= pokeballCenter.x + largeCircleR
&& arrPoints[i].y >= pokeballCenter.y
&& arrPoints[i].y <= pokeballCenter.y + largeCircleR
&& distanceFromPokeballCenter >= smallCircleR && distanceFromPokeballCenter <= largeCircleR) {
insidePokeball = true;
counterPokeball++;
}
}
arrPoints[i].print();
if (insideTriangle) {
cout << "inside, " << i + 1 << " in the list of points (It is inside the triangle)." << endl;
}
else if (insidePokeball) {
cout << "inside, " << i + 1 << " in the list of points (It is inside the pokeball)." << endl;
}
else {
cout << "outside, " << i + 1 << " in the list of points" << endl;
}
}
outside = counterPoints - (counterTriangle + counterPokeball);
cout << counterTriangle << " points inside triangle, " << counterPokeball << " points inside pokeball, " << outside << " points outside out of " << counterPoints << " points." << endl;
return 0;
}

void point::set_point(double x, double y) {
this->x = x;
this->y = y;
}

void point::print() {
cout << "<" << this->x << ", " << this->y << ">: ";
}
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