private List <string> getTokens(string expression)
{
string operators = "()*/+-";
List <string> tokens = new List <string>();
StringMaker makeString = new StringMaker();
foreach (char c in expression.Replace(" ", string.Empty))
{
if (operators.IndexOf(c) >= 0)
{
if ((makeString.Length > 0))
{
tokens.Add(makeString.ToString());
makeString.Length = 0;
}
tokens.Add(c);
}
else
{
makeString.Append(c);
}
}
if ((makeString.Length > 0))
{
tokens.Add(makeString.ToString());
}
return(tokens);
}
private string getSubExpression(List <string> tokens, ref int i)
{
StringMaker subExpression = new StringMaker();
int banyakKurung = 1;
i += 1;
while (i < tokens.Count && banyakKurung > 0)
{
string token = tokens[index];
if (tokens[index] == "(")
{
banyakKurung += 1;
}
if (tokens[index] == ")")
{
banyakKurung -= 1;
}
if (banyakKurung > 0)
{
subExpression.Append(token);
}
i += 1;
}
if ((banyakKurung > 0))
{
throw new ArgumentException("Error Kurung");
}
return(subExpression.ToString());
}
public void TestExpansion_Int64()
{
StringMaker sm;
string expected;
string actual;
long o = 123456;
for (int capacity = 0; capacity < 20; capacity++)
{
#if PUBLIC_STRINGMAKER
sm = new StringMaker(capacity);
sm.Append(o);
actual = sm.ExtractString();
expected = string.Format("{0}", o);
Assert.Equal(expected, actual);
sm.Dispose();
sm = new StringMaker(capacity);
sm.Append(o);
actual = sm.ExtractSpan().ToString();
Assert.Equal(expected, actual);
sm.Dispose();
#endif
for (int width = -10; width < 10; width++)
{
sm = new StringMaker(capacity);
sm.Append(o, "", null, width);
actual = sm.ExtractString();
expected = string.Format(string.Format("{{0,{0}}}", width), o);
Assert.Equal(expected, actual);
sm.Dispose();
sm = new StringMaker(capacity);
sm.Append(o, "", null, width);
actual = sm.ExtractSpan().ToString();
Assert.Equal(expected, actual);
sm.Dispose();
}
}
#if PUBLIC_STRINGMAKER
sm = new StringMaker(Array.Empty <char>(), true);
sm.Append(o);
Assert.True(sm.Overflowed);
Assert.Equal(string.Empty, sm.ExtractString());
sm.Dispose();
#endif
sm = new StringMaker(Array.Empty <char>(), true);
sm.Append(o, string.Empty, null, 0);
Assert.True(sm.Overflowed);
Assert.Equal(string.Empty, sm.ExtractSpan().ToString());
Assert.Equal(string.Empty, sm.ExtractString());
sm.Dispose();
}
public void TestExpansion_Char()
{
StringMaker sm;
string expected;
string actual;
char o = 'x';
for (int capacity = 0; capacity < 20; capacity++)
{
sm = new StringMaker(capacity);
sm.Append(o);
actual = sm.ExtractString();
expected = string.Format("{0}", o);
Assert.Equal(expected, actual);
sm.Dispose();
for (int width = -10; width < 10; width++)
{
sm = new StringMaker(capacity);
sm.Append(o, width);
actual = sm.ExtractString();
expected = string.Format(string.Format("{{0,{0}}}", width), o);
Assert.Equal(expected, actual);
sm.Dispose();
}
}
sm = new StringMaker(Array.Empty <char>(), true);
sm.Append(o);
Assert.True(sm.Overflowed);
Assert.Equal(string.Empty, sm.ExtractString());
sm.Dispose();
sm = new StringMaker(Array.Empty <char>(), true);
sm.Append(o, 0);
Assert.True(sm.Overflowed);
Assert.Equal(string.Empty, sm.ExtractSpan().ToString());
Assert.Equal(string.Empty, sm.ExtractString());
sm.Dispose();
sm = new StringMaker(Array.Empty <char>(), true);
sm.Append(o, 2);
Assert.True(sm.Overflowed);
Assert.Equal(string.Empty, sm.ExtractString());
sm.Dispose();
sm = new StringMaker(Array.Empty <char>(), true);
sm.Append(o, -2);
Assert.True(sm.Overflowed);
Assert.Equal(string.Empty, sm.ExtractString());
sm.Dispose();
}