bool CAtomTable::FindAtom (const CString &sString, int *retiAtom)
// FindAtom
//
// Returns TRUE if the atom exists, FALSE otherwise
{
// Hash the string
int iHash = (utlHashFunctionCase((BYTE *)sString.GetASCIIZ(), sString.GetLength()) % ctHashTableSize);
// See if we've found it
int iNext = m_HashTable[iHash];
while (iNext != -1)
{
SEntry *pEntry = GetEntry(iNext);
if (strEqualsCase(sString, pEntry->GetString()))
{
if (retiAtom)
*retiAtom = (m_iBaseAtom + iNext);
return true;
}
iNext = pEntry->iNext;
}
// We did not find the atom
return false;
}
int CAtomTable::AddAtomWithData (const CString &sString, void *pData, int iDataLen)
// AddAtomWithData
//
// Adds an atom. If the atom does not exist, adds the given data also
{
// Hash the string
int iHash = (utlHashFunctionCase((BYTE *)sString.GetASCIIZ(), sString.GetLength()) % ctHashTableSize);
// See if we've found it
int iNext = m_HashTable[iHash];
while (iNext != -1)
{
SEntry *pEntry = GetEntry(iNext);
if (strEqualsCase(sString, pEntry->GetString()))
return (m_iBaseAtom + iNext);
iNext = pEntry->iNext;
}
// We did not find the atom, so add it
return (m_iBaseAtom + AllocAtom(sString, iHash, pData, iDataLen));
}
void CCommandLineDisplay::AppendHistory (const CString &sLine)
// AppendHistory
//
// Append a line of input to the history buffer
{
// Use case-sensitive compare because sometimes commands differ only
// by case.
if (!strEqualsCase(sLine, GetHistory(0)))
{
m_iHistoryStart = (m_iHistoryStart + (MAX_LINES + 1) - 1) % (MAX_LINES + 1);
if (m_iHistoryStart == m_iHistoryEnd)
m_iHistoryEnd = (m_iHistoryEnd + (MAX_LINES + 1) - 1) % (MAX_LINES + 1);
m_History[m_iHistoryStart] = sLine;
}
m_iHistoryIndex = -1;
}
