public static string RunInterpreter(string sourceCode, InputData inputData)
{
var bf = new Interpreter();
return(bf.Interpret(sourceCode, inputData));
}
private string Interpret(string s, InputData inputData)
{
int i = 0;
int right = s.Length;
var result = new StringBuilder("");
while (i < right)
{
switch (s[i])
{
case '>':
{
ptr++;
if (ptr >= BUFSIZE)
{
ptr = 0;
}
break;
}
case '<':
{
ptr--;
if (ptr < 0)
{
ptr = BUFSIZE - 1;
}
break;
}
case '.':
{
result.Append((char)buf[ptr]);
break;
}
case '+':
{
buf[ptr]++;
break;
}
case '-':
{
buf[ptr]--;
break;
}
case '[':
{
if (buf[ptr] == 0)
{
int loop = 1;
while (loop > 0)
{
i++;
char c = s[i];
if (c == '[')
{
loop++;
}
else
if (c == ']')
{
loop--;
}
}
}
break;
}
case ']':
{
int loop = 1;
while (loop > 0)
{
i--;
char c = s[i];
if (c == '[')
{
loop--;
}
else
if (c == ']')
{
loop++;
}
}
i--;
break;
}
case ',':
{
String input;
do
{
input = inputData.callInputBox("Enter char: ");
} while (input.Length != 1);
buf[ptr] = input[0];
break;
}
}
i++;
}
return(result.ToString());
}
public result DebugProgram(result debugResult, InputData inputData)
{
switch (debugResult.commands[debugResult.i])
{
case '>':
{
debugResult.ptr++;
if (debugResult.ptr >= BUFSIZE)
{
debugResult.ptr = 0;
}
break;
}
case '<':
{
debugResult.ptr--;
if (debugResult.ptr < 0)
{
debugResult.ptr = BUFSIZE - 1;
}
break;
}
case '.':
{
debugResult.resultStr.Append((char)buf[debugResult.ptr]);
break;
}
case '+':
{
buf[debugResult.ptr]++;
break;
}
case '-':
{
buf[debugResult.ptr]--;
break;
}
case '[':
{
if (buf[debugResult.ptr] == 0)
{
int loop = 1;
while (loop > 0)
{
debugResult.i++;
char c = debugResult.commands[debugResult.i];
if (c == '[')
{
loop++;
}
else if (c == ']')
{
loop--;
}
}
}
break;
}
case ']':
{
int loop = 1;
while (loop > 0)
{
debugResult.i--;
char c = debugResult.commands[debugResult.i];
if (c == '[')
{
loop--;
}
else if (c == ']')
{
loop++;
}
}
debugResult.i--;
break;
}
case ',':
{
String input;
do
{
input = inputData.callInputBox("Enter char: ");
} while (input.Length != 1);
buf[debugResult.ptr] = input[0];
break;
}
}
return(debugResult);
}