void PushCurWord(IDocument document, ref HighlightColor markNext, ArrayList words)
{
//Need to look through the next prev logic.
if (currentLength > 0)
{
if (words.Count > 0 && activeRuleSet != null)
{
TextWord prevWord = null;
int pInd = words.Count - 1;
while (pInd >= 0)
{
if (!((TextWord)words[pInd]).IsWhiteSpace)
{
prevWord = (TextWord)words[pInd];
if (prevWord.HasDefaultColor)
{
PrevMarker marker = (PrevMarker)activeRuleSet.PrevMarkers[document, currentLine, currentOffset, currentLength];
if (marker != null)
{
prevWord.HighlightColor = marker.Color;
}
}
break;
}
pInd--;
}
}
if (inSpan)
{
HighlightColor c = null;
bool hasDefaultColor = true;
if (activeSpan.Rule == null)
{
c = activeSpan.Color;
}
else
{
c = GetColor(activeRuleSet, document, currentLine, currentOffset, currentLength);
hasDefaultColor = false;
}
if (c == null)
{
c = activeSpan.Color;
if (c.Color == Color.Transparent)
{
c = GetEnvironmentColorForName("Default");
}
hasDefaultColor = true;
}
words.Add(new TextWord(document, currentLine, currentOffset, currentLength, markNext != null ? markNext : c, hasDefaultColor));
}
else
{
HighlightColor c = markNext != null ? markNext : GetColor(activeRuleSet, document, currentLine, currentOffset, currentLength);
if (c == null)
{
words.Add(new TextWord(document, currentLine, currentOffset, currentLength, GetEnvironmentColorForName("Default"), true));
}
else
{
words.Add(new TextWord(document, currentLine, currentOffset, currentLength, c, false));
}
}
if (activeRuleSet != null)
{
NextMarker nextMarker = (NextMarker)activeRuleSet.NextMarkers[document, currentLine, currentOffset, currentLength];
if (nextMarker != null)
{
if (nextMarker.MarkMarker && words.Count > 0)
{
TextWord prevword = ((TextWord)words[words.Count - 1]);
prevword.HighlightColor = nextMarker.Color;
}
markNext = nextMarker.Color;
}
else
{
markNext = null;
}
}
currentOffset += currentLength;
currentLength = 0;
}
}
//每个RuleSet节点的样子:<RuleSet ignorecase = "false">......</RuleSet>
public HighlightRuleSet(XmlElement el)
{
if (el.Attributes["name"] != null)
{
Name = el.Attributes["name"].InnerText;
}
if (el.Attributes["noescapesequences"] != null)
{
noEscapeSequences = Boolean.Parse(el.Attributes["noescapesequences"].InnerText);
}
if (el.Attributes["reference"] != null)
{
reference = el.Attributes["reference"].InnerText;
}
if (el.Attributes["ignorecase"] != null)
{
ignoreCase = Boolean.Parse(el.Attributes["ignorecase"].InnerText);
}
for (int i = 0; i < Delimiters.Length; ++i)
{
Delimiters[i] = false;
}
if (el["Delimiters"] != null)
{
string delimiterString = el["Delimiters"].InnerText;
foreach (char ch in delimiterString)
{
Delimiters[(int)ch] = true; //将当前字符置为分隔符.
}
}
XmlNodeList nodes = null;
//以下是初始化Span.
nodes = el.GetElementsByTagName("Span");
foreach (XmlElement el2 in nodes)
{
Spans.Add(new Span(el2));
}
keyWords = new LookupTable(!IgnoreCase);
prevMarkers = new LookupTable(!IgnoreCase);
nextMarkers = new LookupTable(!IgnoreCase);
//以下是初始化KeyWords.
nodes = el.GetElementsByTagName("KeyWords");
foreach (XmlElement el2 in nodes)
{
HighlightColor color = new HighlightColor(el2);
XmlNodeList keys = el2.GetElementsByTagName("Key");
foreach (XmlElement node in keys)
{
keyWords[node.Attributes["word"].InnerText] = color; //为每个关键字都赋予一个HighLightColor对象.
}
}
//每个MarkPrevious节点的样子:
//<MarkPrevious bold = "true" italic = "false" color = "MidnightBlue">(</MarkPrevious>
nodes = el.GetElementsByTagName("MarkPrevious");
foreach (XmlElement el2 in nodes)
{
PrevMarker prev = new PrevMarker(el2);
prevMarkers[prev.What] = prev;
}
//每个MarkFollowing节点的样子和MarkFollowing的样子完全一样.
nodes = el.GetElementsByTagName("MarkFollowing");
foreach (XmlElement el2 in nodes)
{
NextMarker next = new NextMarker(el2);
nextMarkers[next.What] = next;
}
}