/***************************************************************
* Function: getLine
* Description: Returns true on EOF, false otherwise.
* Guarantees not to return a blank line, or a line
* of zero length.
**************************************************************/
public bool getLine
(
)
{
string lineStr;
int elem;
/* Has EOF already been reached? */
if (m_eof_reached)
{
return(EOF);
}
/* Pushback current line? */
if (m_pushback_line)
{
m_pushback_line = false;
/* Check for empty line. */
for (elem = 0; elem < m_line_read; ++elem)
{
if (false == CUtility.isspace(m_line[elem]))
{
break;
}
}
/* Nonempty? */
if (elem < m_line_read)
{
m_line_index = 0;
return(NOT_EOF);
}
}
while (true)
{
if (null == (lineStr = m_input.ReadLine()))
{
m_eof_reached = true;
m_line_index = 0;
return(EOF);
}
m_line = (lineStr + "\n").ToCharArray();
m_line_read = m_line.Length;
++m_line_number;
/* Check for empty lines and discard them. */
elem = 0;
while (CUtility.isspace(m_line[elem]))
{
++elem;
if (elem == m_line_read)
{
break;
}
}
if (elem < m_line_read)
{
break;
}
}
m_line_index = 0;
return(NOT_EOF);
}