private static bool AreEquals(PredictableList <Rules.Context> a, Rules.Context[] b)
{
if (b == null || a.count != b.Length)
{
return(false);
}
for (int i = 0; i < b.Length; i++)
{
if (a.buffer[i] != b[i])
{
return(false);
}
}
return(true);
}
public bool Parse(LineArray lines, int maxMilliseconds)
{
#if HIGHLIGHTER_DEBUG
if (_debugStopwatch == null)
{
_debugStopwatch = new System.Diagnostics.Stopwatch();
_debugStopwatch.Start();
Console.WriteLine("HIGHLIGHTER START");
}
#endif
DateTime startTime = DateTime.Now;
int changesBeforeTimeCheck = 0;
bool timeElapsed = false;
bool changed = false;
stack = new PredictableList <Rules.Context>(8);
stack.Add(contexts[0]);
Rules.Context[] state = stack.ToArray();
bool needSetStack = false;
bool lastLineChanged = false;
for (int i = 0; i < lines.blocksCount; i++)
{
LineBlock block = lines.blocks[i];
if (timeElapsed && lastLineChanged)
{
while (block.count == 0)
{
i++;
if (i >= lines.blocksCount)
{
block = null;
break;
}
block = lines.blocks[i];
}
if (block != null)
{
block.valid &= ~LineBlock.ColorValid;
Line line = block.array[0];
line.startState = state;
line.endState = null;
}
stack = null;
return(changed);
}
{
bool noChangesInBlock = (block.valid & LineBlock.ColorValid) != 0 && !lastLineChanged;
if (noChangesInBlock && block.count > 0)
{
Rules.Context[] nextState = block.array[block.count - 1].endState;
if (nextState == null)
{
noChangesInBlock = false;
}
else
{
state = nextState;
}
}
if (noChangesInBlock)
{
needSetStack = true;
continue;
}
}
block.valid |= LineBlock.ColorValid;
for (int j = 0; j < block.count; j++)
{
Line line = block.array[j];
if (AreEquals(line.startState, state) && line.endState != null)
{
state = line.endState;
needSetStack = true;
lastLineChanged = false;
continue;
}
if (needSetStack)
{
needSetStack = false;
stack.Resize(state.Length);
Array.Copy(state, stack.buffer, stack.count);
}
line.startState = state;
string text = line.Text;
Array.Clear(awakePositions, 0, awakePositions.Length);
int position = 0;
int count = line.charsCount;
Rules.Rule lastMatched = null;
while (position < count)
{
Rules.Context context = stack.count > 0 ? stack.Peek() : contexts[0];
lastMatched = null;
foreach (Rules.Rule rule in context.childs)
{
int nextPosition;
if ((rule.column == -1 || position == rule.column) && rule.Match(text, position, out nextPosition))
{
if (!rule.lookAhead)
{
for (; position < nextPosition; position++)
{
line.chars[position].style = rule.attribute.index;
}
}
if (rule.childs != null && position < count)
{
foreach (Rules.Rule childRule in rule.childs)
{
int childNextPosition;
if (childRule.Match(text, nextPosition, out childNextPosition))
{
for (; position < childNextPosition; position++)
{
line.chars[position].style = childRule.attribute.index;
}
Switch(rule.context);
}
}
}
Switch(rule.context);
lastMatched = rule;
break;
}
}
if (lastMatched == null)
{
if (context.fallthrough)
{
Switch(context.fallthroughContext);
}
else
{
line.chars[position].style = context.attribute.index;
position++;
}
}
}
if (lastMatched == null || !lastMatched.isLineContinue)
{
while (stack.count > 0)
{
Rules.Context contextI = stack.Peek();
if (contextI.lineEndContext.next == null && contextI.lineEndContext.pops == 0)
{
break;
}
Switch(contextI.lineEndContext);
}
}
if (AreEquals(stack, state))
{
line.endState = state;
}
else
{
state = stack.ToArray();
line.endState = state;
}
changesBeforeTimeCheck++;
lastLineChanged = true;
changed = true;
}
if (changesBeforeTimeCheck > 50)
{
changesBeforeTimeCheck = 0;
DateTime nextTime = DateTime.Now;
timeElapsed = (nextTime - startTime).TotalMilliseconds > maxMilliseconds;
if (timeElapsed)
{
startTime = nextTime;
}
}
}
stack = null;
lastParsingChanged = changed;
if (!changed && lines.ranges != null)
{
foreach (StyleRange range in lines.ranges)
{
lines.SetStyleRange(range);
}
}
#if HIGHLIGHTER_DEBUG
if (!changed)
{
_debugStopwatch.Stop();
Console.WriteLine("HIGHLIGHTER TIME: " + (_debugStopwatch.Elapsed.TotalMilliseconds / 1000).ToString("0.00"));
}
#endif
return(changed);
}
