/// <summary>
/// Creates a new instance of <see cref="PrevMarker"/>
/// </summary>
public PrevMarker(XmlElement mark)
{
color = new HighlightColor(mark);
what = mark.InnerText;//可能是半个括号: 如(
if (mark.Attributes["markmarker"] != null) {
markMarker = Boolean.Parse(mark.Attributes["markmarker"].InnerText);
}
}
public DefaultHighlightingStrategy(string name)
{
this.name = name;
this.digitColor = new HighlightColor("WindowText", "Window", false, false);
// set default color environment'
environmentColors["Default"] = new HighlightColor(Color.Black, Color.White, false, false);
environmentColors["Selection"] = new HighlightColor(Color.Black, Color.FromArgb(((System.Byte)(102)), ((System.Byte)(210)), ((System.Byte)(214))), false, false);
environmentColors["VRuler"] = new HighlightColor("ControlLight", "Window", false, false);
environmentColors["InvalidLines"] = new HighlightColor(Color.Red, false, false);
environmentColors["CaretMarker"] = new HighlightColor(Color.Yellow, false, false);
environmentColors["LineNumbers"] = new HighlightColor("ControlDark", "Window", false, false);
environmentColors["FoldLine"] = new HighlightColor(Color.FromArgb(0x80, 0x80, 0x80), Color.Black, false, false);
environmentColors["FoldMarker"] = new HighlightColor(Color.FromArgb(0x80, 0x80, 0x80), Color.White, false, false);
environmentColors["SelectedFoldLine"] = new HighlightColor(Color.Black, false, false);
environmentColors["EOLMarkers"] = new HighlightColor("ControlLight", "Window", false, false);
environmentColors["SpaceMarkers"] = new HighlightColor("ControlLight", "Window", false, false);
environmentColors["TabMarkers"] = new HighlightColor("ControlLight", "Window", false, false);
}
//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;
}
}
//功能同上面这个构造函数,只不过在初始化实例时提供了一个默认的实例对象.
public HighlightColor(XmlElement el, HighlightColor defaultColor)
{
Debug.Assert(el != null, "NetFocus.DataStructure.TextEditor.Document.SyntaxColor(XmlElement el) : el == null");
if (el.Attributes["bold"] != null) {
bold = Boolean.Parse(el.Attributes["bold"].InnerText);
} else {
bold = defaultColor.Bold;
}
if (el.Attributes["italic"] != null) {
italic = Boolean.Parse(el.Attributes["italic"].InnerText);
} else {
italic = defaultColor.Italic;
}
if (el.Attributes["color"] != null) {
string c = el.Attributes["color"].InnerText;
if (c[0] == '#') {
color = ParseColor(c);
} else if (c.StartsWith("SystemColors.")) {
systemColor = true;
systemColorName = c.Substring("SystemColors.".Length);
} else {
color = (Color)(Color.GetType()).InvokeMember(c, BindingFlags.GetProperty, null, Color, new object[0]);
}
hasForgeground = true;
} else {
color = defaultColor.color;
}
if (el.Attributes["bgcolor"] != null) {
string c = el.Attributes["bgcolor"].InnerText;
if (c[0] == '#') {
backgroundcolor = ParseColor(c);
} else if (c.StartsWith("SystemColors.")) {
systemBgColor = true;
systemBgColorName = c.Substring("SystemColors.".Length);
} else {
backgroundcolor = (Color)(Color.GetType()).InvokeMember(c, BindingFlags.GetProperty, null, Color, new object[0]);
}
hasBackground = true;
} else {
backgroundcolor = defaultColor.BackgroundColor;
}
}
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;
}
}
public Span(XmlElement span)
{
color = new HighlightColor(span);
if (span.Attributes["rule"] != null) {
rule = span.Attributes["rule"].InnerText;
}
if (span.Attributes["noescapesequences"] != null) {
noEscapeSequences = Boolean.Parse(span.Attributes["noescapesequences"].InnerText);
}
name = span.Attributes["name"].InnerText;
stopEOL = Boolean.Parse(span.Attributes["stopateol"].InnerText);
begin = span["Begin"].InnerText.ToCharArray();
beginColor = new HighlightColor(span["Begin"], color);
if (span["End"] != null) {
end = span["End"].InnerText.ToCharArray();
endColor = new HighlightColor(span["End"], color);
}
}
internal void SetColorForEnvironment(string name, HighlightColor color)
{
environmentColors[name] = color;
}
//根据doucment,currentLine为参数,来分析得到该行中的所有单词即words
ArrayList ParseLine(IDocument document)
{
ArrayList words = new ArrayList();
HighlightColor markNext = null;
currentOffset = 0;
currentLength = 0;
UpdateSpanStateVariables();
//从当前行的第一个字符开始循环,逐个分析.
for (int i = 0; i < currentLine.Length; ++i)
{
char ch = document.GetCharAt(currentLine.Offset + i);
switch (ch)
{
case '\n':
case '\r':
PushCurWord(document, ref markNext, words);
++currentOffset;
break;
case ' ':
PushCurWord(document, ref markNext, words);
if (activeSpan != null && activeSpan.Color.HasBackground)
{
words.Add(new SpaceTextWord(activeSpan.Color));
}
else
{
words.Add(TextWord.Space);
}
++currentOffset;
break;
case '\t':
PushCurWord(document, ref markNext, words);
if (activeSpan != null && activeSpan.Color.HasBackground)
{
words.Add(new TabTextWord(activeSpan.Color));
}
else
{
words.Add(TextWord.Tab);
}
++currentOffset;
break;
case '\\': // handle escape chars
if ((activeRuleSet != null && activeRuleSet.NoEscapeSequences) ||
(activeSpan != null && activeSpan.NoEscapeSequences))
{
goto default;
}
++currentLength;
if (i + 1 < currentLine.Length)
{
++currentLength;
}
PushCurWord(document, ref markNext, words);
++i;
continue;
default: {
// highlight digits
if (!inSpan && (Char.IsDigit(ch) || (ch == '.' && i + 1 < currentLine.Length && Char.IsDigit(document.GetCharAt(currentLine.Offset + i + 1)))) && currentLength == 0)
{
bool ishex = false;
bool isfloatingpoint = false;
if (ch == '0' && i + 1 < currentLine.Length && Char.ToUpper(document.GetCharAt(currentLine.Offset + i + 1)) == 'X') // hex digits
{
const string hex = "0123456789ABCDEF";
++currentLength;
++i; // skip 'x'
++currentLength;
ishex = true;
while (i + 1 < currentLine.Length && hex.IndexOf(Char.ToUpper(document.GetCharAt(currentLine.Offset + i + 1))) != -1)
{
++i;
++currentLength;
}
}
else
{
++currentLength;
while (i + 1 < currentLine.Length && Char.IsDigit(document.GetCharAt(currentLine.Offset + i + 1)))
{
++i;
++currentLength;
}
}
if (!ishex && i + 1 < currentLine.Length && document.GetCharAt(currentLine.Offset + i + 1) == '.')
{
isfloatingpoint = true;
++i;
++currentLength;
while (i + 1 < currentLine.Length && Char.IsDigit(document.GetCharAt(currentLine.Offset + i + 1)))
{
++i;
++currentLength;
}
}
if (i + 1 < currentLine.Length && Char.ToUpper(document.GetCharAt(currentLine.Offset + i + 1)) == 'E')
{
isfloatingpoint = true;
++i;
++currentLength;
if (i + 1 < currentLine.Length && (document.GetCharAt(currentLine.Offset + i + 1) == '+' || document.GetCharAt(currentLine.Offset + i + 1) == '-'))
{
++i;
++currentLength;
}
while (i + 1 < currentLine.Length && Char.IsDigit(document.GetCharAt(currentLine.Offset + i + 1)))
{
++i;
++currentLength;
}
}
if (i + 1 < currentLine.Length)
{
char nextch = Char.ToUpper(document.GetCharAt(currentLine.Offset + i + 1));
if (nextch == 'F' || nextch == 'M' || nextch == 'D')
{
isfloatingpoint = true;
++i;
++currentLength;
}
}
if (!isfloatingpoint)
{
bool isunsigned = false;
if (i + 1 < currentLine.Length && Char.ToUpper(document.GetCharAt(currentLine.Offset + i + 1)) == 'U')
{
++i;
++currentLength;
isunsigned = true;
}
if (i + 1 < currentLine.Length && Char.ToUpper(document.GetCharAt(currentLine.Offset + i + 1)) == 'L')
{
++i;
++currentLength;
if (!isunsigned && i + 1 < currentLine.Length && Char.ToUpper(document.GetCharAt(currentLine.Offset + i + 1)) == 'U')
{
++i;
++currentLength;
}
}
}
words.Add(new TextWord(document, currentLine, currentOffset, currentLength, DigitColor, false));
currentOffset += currentLength;
currentLength = 0;
continue;
}
// Check for SPAN ENDs
if (inSpan)
{
if (activeSpan.End != null && !activeSpan.End.Equals(""))
{
if (currentLine.MatchExpr(activeSpan.End, i, document))
{
PushCurWord(document, ref markNext, words);
string regex = currentLine.GetRegString(activeSpan.End, i, document);
currentLength += regex.Length;
words.Add(new TextWord(document, currentLine, currentOffset, currentLength, activeSpan.EndColor, false));
currentOffset += currentLength;
currentLength = 0;
i += regex.Length - 1;
currentSpanStack.Pop();
UpdateSpanStateVariables();
continue;
}
}
}
// check for SPAN BEGIN
if (activeRuleSet != null)
{
foreach (Span span in activeRuleSet.Spans)
{
if (currentLine.MatchExpr(span.Begin, i, document))
{
PushCurWord(document, ref markNext, words);
string regex = currentLine.GetRegString(span.Begin, i, document);
currentLength += regex.Length;
words.Add(new TextWord(document, currentLine, currentOffset, currentLength, span.BeginColor, false));
currentOffset += currentLength;
currentLength = 0;
i += regex.Length - 1;
if (currentSpanStack == null)
{
currentSpanStack = new Stack();
}
currentSpanStack.Push(span);
UpdateSpanStateVariables();
goto skip;
}
}
}
// check if the char is a delimiter
if (activeRuleSet != null && (int)ch < 256 && activeRuleSet.Delimiters[(int)ch])
{
PushCurWord(document, ref markNext, words);
if (currentOffset + currentLength + 1 < currentLine.Length)
{
++currentLength;
PushCurWord(document, ref markNext, words);
goto skip;
}
}
++currentLength;
skip : continue;
}
}
}
PushCurWord(document, ref markNext, words);
return(words);
}
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;
}
}
internal void SetColorForEnvironment(string name, HighlightColor color)
{
environmentColors[name] = color;
}
public TabTextWord(HighlightColor highlightColor)
{
base.HighlightColor = highlightColor;
}
public SpaceTextWord(HighlightColor highlightColor)
{
base.HighlightColor = highlightColor;
}
public TextWord(IDocument document, LineSegment line, int offset, int length, HighlightColor highlightColor, bool hasDefaultColor)
{
Debug.Assert(document != null);
Debug.Assert(line != null);
Debug.Assert(highlightColor != null);
this.document = document;
this.line = line;
this.offset = offset;
this.length = length;
this.highlightColor = highlightColor;
this.hasDefaultColor = hasDefaultColor;
}
//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;
}
}
