Method equal

src/diff.cpp:96–134

Implement support for g_bIgnoreWhiteSpace */

    Implement support for g_bIgnoreWhiteSpace
*/
bool LineData::equal(const LineData& l1, const LineData& l2)
{
    if(l1.getLine() == nullptr || l2.getLine() == nullptr) return false;

    if(g_bIgnoreWhiteSpace)
    {
        // Ignore white space diff
        const QString line1 = l1.getLine(), line2 = l2.getLine();
        StringIter p1{line1};
        StringIter p2{line2};

        for(; ; p1.next(), p2.next())
        {
            // Advance to the next non-whitespace character or EOL.
            while (p1.hasPeek() && isspace(p1.tryPeek()->toLatin1())) {
                p1.next();
            }
            while (p2.hasPeek() && isspace(p2.tryPeek()->toLatin1())) {
                p2.next();
            }

            // If the two strings differ outside of whitespace, or either ends earlier, return false.
            if(p1.tryPeek() != p2.tryPeek())
                return false;

            // If both strings end together, return true.
            if (!p1.hasPeek() && !p2.hasPeek()) {
                return true;
            }

            // Test remaining characters.
        }
    }
    else
    {
        const QString line1 = l1.getLine(), line2 = l2.getLine();
        return (l1.size() == l2.size() && QString::compare(line1, line2) == 0);
    }
}

// First step
void Diff3LineList::calcDiff3LineListUsingAB(const DiffList* pDiffListAB)