public void NoCommentsWithinLiteralStrings()
{
// No comments within literal strings
string src = " \"// /* */\" ";
int[] exp = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
var com = new InComment();
for (int i = 0; i != src.Length; ++i)
{
Assert.Equal(exp[i], com.WithinComment(src, i) ? 1 : 0);
}
}
public void IgnoreLiteralStringsWithinComments()
{
// Ignore literal strings within comments
string src = " /* \" */ // \" \n ";
int[] exp = { 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0 };
var com = new InComment();
for (int i = 0; i != src.Length; ++i)
{
Assert.Equal(exp[i], com.WithinComment(src, i) ? 1 : 0);
}
}
public void LineCommentEndsAsEoS()
{
// Line comment ends at EOS
string src = " // ";
int[] exp = { 0, 1, 1, 1, 0 };
var com = new InComment();
for (int i = 0; i != src.Length; ++i)
{
Assert.Equal(exp[i], com.WithinComment(src, i) ? 1 : 0);
}
}
public void LineCommentEndsAtUnescapedNewLine()
{
// Line comment ends at unescaped new line (exclusive)
string src = " // \\\n \n ";
int[] exp = { 0, 1, 1, 1, 1, 1, 1, 0, 0, 0 };
var com = new InComment();
for (int i = 0; i != src.Length; ++i)
{
Assert.Equal(exp[i], com.WithinComment(src, i) ? 1 : 0);
}
}
public void NoSubstringMatchingWithinBlockCommentMarkers()
{
// No substring matching within block comment markers
string src = "/*/*/ /**/*/";
int[] exp = { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0 };
var com = new InComment();
for (int i = 0; i != src.Length; ++i)
{
Assert.Equal(exp[i], com.WithinComment(src, i) ? 1 : 0);
}
}
public void SimpleBlockComment()
{
// Simple block comment
string src = " /**/ ";
int[] exp = { 0, 1, 1, 1, 1, 0 };
var com = new InComment();
for (int i = 0; i != src.Length; ++i)
{
Assert.Equal(exp[i], com.WithinComment(src, i) ? 1 : 0);
}
}
/// <summary>Return the next valid character from the underlying stream or '\0' for the end of stream.</summary>
protected override int Read()
{
for (; m_src != '\0'; ++m_src)
{
// Eat comments
var len = m_src.ReadAhead(8);
if (m_com.WithinComment(m_src.Buffer.ToString(0, len), 0))
{
continue;
}
break;
}
var ch = m_src.Peek;
if (ch != '\0')
{
m_src.Next();
}
return(ch);
}