int main()
{
char *plain_text, *encrypted_text, *decrypted_text;
int index, *key, key_length, *key_length_address = &key_length;
long length;
long *length_address = &length;
if(FilterText() == -1)
{
printf("\nA file I/O has occured!");
exit(1);
}
if((plain_text = ReadPlainText(length_address)) == NULL)
{
printf("A problem has occured!");
exit(2);
}
if((key = GenerateKey(key_length_address)) == NULL)
{
printf("A memory problem has occured!");
exit(3);
}
if((encrypted_text = Encrypt(key, key_length, plain_text, length)) == NULL)
{
printf("A memory problem has occured!");
exit(4);
}
if(WriteTextToFile("encrypted_text.txt" ,encrypted_text, length) == -1)
{
printf("\nA file I/O has occured!");
exit(5);
}
if((decrypted_text = Decrypt(key, key_length, encrypted_text, length)) == NULL)
{
printf("A memory problem has occured!");
exit(4);
}
if(WriteTextToFile("decrypted_text.txt" ,decrypted_text, length) == -1)
{
printf("\nA file I/O has occured!");
exit(5);
}
free(plain_text);
free(encrypted_text);
free(decrypted_text);;
free(key);
return 0;
}
//***************************************************
bool Logic::AddSpecialSyntax()
{
int arg1,arg2,arg3;
bool arg2isvar=false,arg3isvar=false,arg2isstar=false;
string ArgText="",expr,expr2;
int OldLinePos;
OldLinePos = LinePos;
LinePos -= CommandName.length();
if(CommandName[0]=='*'){
LinePos++;
ArgText = "*" + ReplaceDefine(ReadPlainText());
}
else ArgText = ReplaceDefine(ReadPlainText());
if(ArgText[0]=='v'){
arg1 = Val(ArgText.substr(1));
if(arg1<0 || arg1>255)
ShowError(CurLine,"Invalid number given or error in expression syntax.");
else{
SkipSpaces();
expr = ReadExprText();
if(expr == "++"){
WriteByte(0x01); // increment
WriteByte(arg1);
return true;
}
else if (expr == "--"){
WriteByte(0x02); // decrement
WriteByte(arg1);
return true;
}
else{
if(expr[0]=='*'){
expr = expr.substr(1);
LinePos++;
}
SkipSpaces();
arg2isstar = false;
ArgText = ReadPlainText();
if(ReadPlainText() == "" && LowerCaseLine[LinePos-ArgText.length()]=='*'){
LinePos++;
ArgText = "*" + ReplaceDefine(ReadPlainText());
}
else ArgText = ReplaceDefine(ArgText);
if(ArgText[0] == 'v' && !arg2isstar)arg2isvar=true;
else if (ArgText.substr(0,2) == "*v" && !arg2isstar) arg2isstar = true;
if(arg2isvar)arg2 = Val(ArgText.substr(1));
else if(arg2isstar)arg2 = Val(ArgText.substr(2));
else arg2 = Val(ArgText);
if(arg2 <0 || arg2 >255)
ShowError(CurLine,"Invalid number given or error in expression syntax.");
else{
if(expr == "+=" && !arg2isstar){
if(arg2isvar)WriteByte(0x06); //addv
else WriteByte(0x05); //addn
WriteByte(arg1);
WriteByte(arg2);
return true;
}
else if(expr == "-=" && !arg2isstar){
if(arg2isvar)WriteByte(0x08); //subv
else WriteByte(0x07); //subn
WriteByte(arg1);
WriteByte(arg2);
return true;
}
else if(expr == "*=" && !arg2isstar){
if(arg2isvar)WriteByte(0xa6); //mul.v
else WriteByte(0xa5); //mul.n
WriteByte(arg1);
WriteByte(arg2);
return true;
}
else if(expr == "/=" && !arg2isstar){
if(arg2isvar)WriteByte(0xa8); //div.v
else WriteByte(0xa7); //div.n
WriteByte(arg1);
WriteByte(arg2);
return true;
}
else if(expr == "="){
if(LinePos < LineLength && EditLines.at(CurLine)[LinePos] == ';'){
//must be assignn, assignv or rindirect
if (arg2isvar) WriteByte(0x04); // assignv
else if (arg2isstar) WriteByte(0x0A); // rindirect
else WriteByte(0x03); // assignv
WriteByte(arg1);
WriteByte(arg2);
return true;
}
else if(arg2 != arg1) ShowError(CurLine,"Expression syntax error");
else{
SkipSpaces();
expr2 = ReadExprText();
SkipSpaces();
ArgText = ReplaceDefine(ReadPlainText());
arg3isvar = (ArgText[0]=='v');
if(arg3isvar)arg3=Val(ArgText.substr(1));
else arg3 = Val(ArgText);
if(arg3<0 || arg3>255)
ShowError(CurLine,"Invalid number given or error in expression syntax.");
else{
if (expr2 == "+"){
if (arg3isvar) WriteByte(0x06); //addv
else WriteByte(0x05); //addn
WriteByte(arg1);
WriteByte(arg3);
return true;
}
else if (expr2 == "-"){
if (arg3isvar) WriteByte(0x08); //subv
else WriteByte(0x07); //subn
WriteByte(arg1);
WriteByte(arg3);
return true;
}
else if (expr2 == "*"){
if (arg3isvar) WriteByte(0xa6); //mul.v
else WriteByte(0xa5); //mul.n
WriteByte(arg1);
WriteByte(arg3);
return true;
}
else if (expr2 == "/"){
if (arg3isvar) WriteByte(0xa8); //div.v
else WriteByte(0xa7); //div.n
WriteByte(arg1);
WriteByte(arg3);
return true;
}
else ShowError(CurLine,"Expression syntax error");
}
}
}//if(expr == "=")
else ShowError(CurLine,"Expression syntax error");
}
}//if (expr != "--" && expr != "++")
}//if(arg1<0 || arg1>255)
}//if(ArgText[0]=='v')
else if(ArgText.substr(0,2)=="*v"){
LinePos -= (CommandName.length() -1);
ArgText = ReplaceDefine(ReadPlainText());
arg1 = Val(ArgText.substr(1));
if(arg1<0 || arg1>255)
ShowError(CurLine,"Invalid number given or error in expression syntax.");
else{
SkipSpaces();
expr = ReadExprText();
if(expr != "=")ShowError(CurLine,"Expression syntax error");
else{
SkipSpaces();
ArgText = ReplaceDefine(ReadPlainText());
arg2isvar = (ArgText[0]=='v');
if(arg2isvar)arg2 = Val(ArgText.substr(1));
else arg2 = Val(ArgText);
if(arg2 < 0 || arg2 > 255) ShowError(CurLine,"Invalid number given or error in expression syntax.");
else{
if(arg2isvar)WriteByte(0x09); //lindirectv
else WriteByte(0x0b); //lindirectn
WriteByte(arg1);
WriteByte(arg2);
return true;
}
}
}
}//if(ArgText.substr(0,2)=="*v")
else LinePos = OldLinePos;
return false;
}
//***************************************************
bool Logic::AddSpecialIFSyntax()
{
int OldLinePos;
int arg1,arg2;
bool arg2isvar,AddNOT;
string ArgText,expr;
OldLinePos = LinePos;
LinePos -= CommandName.length();
ArgText = ReplaceDefine(ReadPlainText());
if(ArgText[0]=='v'){
if (NOTOn) ShowError(CurLine,"'!' not allowed before var.");
arg1=Val(ArgText.substr(1));
if(arg1<0||arg1>255)
ShowError(CurLine,"Invalid number given or error in expression syntax.");
else{
SkipSpaces();
expr = ReadExprText();
SkipSpaces();
ArgText = ReplaceDefine(ReadPlainText());
arg2isvar = (ArgText[0]=='v');
if(arg2isvar)
arg2=Val(ArgText.substr(1));
else
arg2=Val(ArgText);
if(arg2<0||arg2>255)
ShowError(CurLine,"Invalid number given or error in expression syntax.");
else{
CommandNum=0;
AddNOT = false;
if(expr == "==")CommandNum = 0x01; //equal
else if(expr == "<")CommandNum = 0x03; //less
else if(expr == ">")CommandNum = 0x05; //greater
else if(expr == "!="){ CommandNum = 0x01; AddNOT = true; } //!equal
else if(expr == ">="){ CommandNum = 0x03; AddNOT = true; } //!less
else if(expr == "<="){ CommandNum = 0x05; AddNOT = true; } //!greater
else ShowError(CurLine,"Expression syntax error");
if(CommandNum>0){
if (arg2isvar)CommandNum++;
if (AddNOT) WriteByte(0xFD);
WriteByte(CommandNum);
WriteByte(arg1);
WriteByte(arg2);
return true;
}
}
}
}//if(ArgText[0]=='v')
else if(ArgText[0]=='f'){
arg1 = Val(ArgText.substr(1));
if(arg1<0||arg1>255)
ShowError(CurLine,"Invalid number given or error in expression syntax..");
else{
WriteByte(0x07); // isset
WriteByte(arg1);
return true;
}
}//if(ArgText[0]=='f')
else LinePos = OldLinePos;
return false;
}
