private void PopSpanStack()
{
currentSpanStack.RemoveAt(currentSpanStack.Count - 1);
inSpan = (currentSpanStack != null && currentSpanStack.Count > 0);
activeSpan = inSpan ? currentSpanStack[currentSpanStack.Count - 1] : null;
activeRuleSet = new HighlightRuleSet();
}
public Ca65Highlighting(ProjectType projectType)
{
Extensions = new[] { "s", "h" };
opcodes = new HashSet <string>(nesOpcodes);
if (projectType == ProjectType.Snes)
{
opcodes.UnionWith(snesOpcodes);
}
Properties = new Dictionary <string, string>();
Properties.Add("LineComment", ";");
Rule = new HighlightRuleSet();
NumberWord = new Ca65WordType
{
Type = AsmWord.AsmWordType.NumberWord,
Match = NumberMatch
};
StringWord = new Ca65WordType
{
Type = AsmWord.AsmWordType.String,
Match = StringMatch
};
AddressWord = new Ca65WordType
{
Type = AsmWord.AsmWordType.AddressReference,
Match = AddressMatch
};
CommandWord = new Ca65WordType
{
Type = AsmWord.AsmWordType.Command,
Match = CommandMatch
};
CommentSpan = new Ca65Span
{
Begin = new char[] { ';' },
End = new char[] { '\n' },
Type = AsmWord.AsmWordType.Comment
};
UpdateColorsFromDefault();
Type = new List <Ca65WordType> {
NumberWord, StringWord, CommandWord
}; //, AddressWord };
Spans = new List <Ca65Span> {
CommentSpan
};
}
List <TextWord> ParseLine(IDocument document)
{
List <TextWord> words = new List <TextWord>();
HighlightColor markNext = null;
currentOffset = 0;
currentLength = 0;
inSpan = (currentSpanStack != null && currentSpanStack.Count > 0);
activeSpan = inSpan ? currentSpanStack[currentSpanStack.Count - 1] : null;
activeRuleSet = Rule;
int currentLineLength = currentLine.Length;
int currentLineOffset = currentLine.Offset;
var firstWord = true;
var isWord = false;
var opcodeParams = false;
var absoluteValue = false;
for (int i = 0; i < currentLineLength; ++i)
{
char ch = document.GetCharAt(currentLineOffset + i);
switch (ch)
{
case '\n':
case '\r':
PushCurWord(document, ref markNext, words, firstWord);
if (isWord)
{
firstWord = false;
}
++currentOffset;
break;
case ' ':
PushCurWord(document, ref markNext, words, firstWord);
if (isWord)
{
firstWord = false;
}
if (activeSpan != null && activeSpan.Color.HasBackground)
{
words.Add(new TextWord.SpaceTextWord(activeSpan.Color));
}
else
{
words.Add(TextWord.Space);
}
++currentOffset;
break;
case '\t':
PushCurWord(document, ref markNext, words, firstWord);
if (isWord)
{
firstWord = false;
}
if (activeSpan != null && activeSpan.Color.HasBackground)
{
words.Add(new TextWord.TabTextWord(activeSpan.Color));
}
else
{
words.Add(TextWord.Tab);
}
++currentOffset;
break;
default:
var lookAhead = document.GetText(currentLineOffset + i, (currentLineLength - i));
var match = Regex.Match(lookAhead, OperatorMatch);
if (match.Success) // && !Type.Any(t => Regex.IsMatch(lookAhead, t.Match))) ; Condition only necessary if a match type conflicts with operators
{
PushCurWord(document, ref markNext, words, firstWord);
if (isWord)
{
firstWord = false;
}
currentLength = match.Length;
PushCurWord(document, ref markNext, words, firstWord);
isWord = true;
i += match.Length - 1;
continue;
}
isWord = true;
// handle escape characters
var escapeCharacter = '\0';
if (activeSpan != null && activeSpan.EscapeCharacter != '\0')
{
escapeCharacter = activeSpan.EscapeCharacter;
}
else if (activeRuleSet != null)
{
escapeCharacter = activeRuleSet.EscapeCharacter;
}
if (escapeCharacter != '\0' && escapeCharacter == ch)
{
// we found the escape character
if (activeSpan != null && activeSpan.End != null && activeSpan.End.Length == 1 &&
escapeCharacter == activeSpan.End[0])
{
// the escape character is a end-doubling escape character
// it may count as escape only when the next character is the escape, too
if (i + 1 < currentLineLength)
{
if (document.GetCharAt(currentLineOffset + i + 1) == escapeCharacter)
{
currentLength += 2;
PushCurWord(document, ref markNext, words);
++i;
continue;
}
}
}
else
{
// this is a normal \-style escape
++currentLength;
if (i + 1 < currentLineLength)
{
++currentLength;
}
PushCurWord(document, ref markNext, words);
++i;
continue;
}
}
if (!inSpan && currentLength == 0)
{
// Handle new words from the beginning
if (ch == '#')
{
currentLength += 1;
words.Add(new AsmWord(document, currentLine, currentOffset, currentLength, DigitColor, false, AsmWord.AsmWordType.None));
if (opcodeParams)
{
absoluteValue = true;
}
i += currentLength - 1;
currentOffset += currentLength;
currentLength = 0;
continue;
}
foreach (var type in Type)
{
var typeMatch = Regex.Match(lookAhead, type.Match);
if (typeMatch.Success)
{
currentLength = typeMatch.Length;
words.Add(new AsmWord(document, currentLine, currentOffset, currentLength, type.Color, false, type.Type));
i += currentLength - 1;
currentOffset += currentLength;
currentLength = 0;
goto @skip;
}
}
// highlight opcodes
if (i + 2 < currentLineLength &&
(i + 3 == currentLineLength || Char.IsWhiteSpace(document.GetCharAt(currentLineOffset + i + 3))))
{
var potentialOpcode = new string(new []
{
document.GetCharAt(currentLineOffset + i + 0),
document.GetCharAt(currentLineOffset + i + 1),
document.GetCharAt(currentLineOffset + i + 2)
});
if (opcodes.Contains(potentialOpcode.ToUpperInvariant()))
{
currentLength += 3; // add 3 letter word
i += 2; // skip the next two letters
words.Add(new AsmWord(document, currentLine, currentOffset, currentLength, OpcodeColor, false, AsmWord.AsmWordType.Opcode));
opcodeParams = true; // Anything after this will be treated as parameters to the opcode
currentOffset += currentLength;
currentLength = 0;
continue; // If opcode, we have already completed the word, so move on to next word
}
}
}
// Check for SPAN ENDs
if (inSpan)
{
if (activeSpan.End != null && activeSpan.End.Length > 0)
{
if (MatchExpr(currentLine, activeSpan.End, i, document, activeSpan.IgnoreCase))
{
PushCurWord(document, ref markNext, words);
string regex = GetRegString(currentLine, activeSpan.End, i, document);
currentLength += regex.Length;
words.Add(new TextWord(document, currentLine, currentOffset, currentLength, activeSpan.EndColor ?? activeSpan.Color, false));
currentOffset += currentLength;
currentLength = 0;
i += regex.Length - 1;
PopSpanStack();
continue;
}
}
}
// check for SPAN BEGIN
foreach (var span in Spans)
{
if ((!span.IsBeginSingleWord || currentLength == 0)
&&
(!span.IsBeginStartOfLine.HasValue ||
span.IsBeginStartOfLine.Value ==
(currentLength == 0 &&
words.TrueForAll(textWord => textWord.Type != TextWordType.Word))) &&
MatchExpr(currentLine, span.Begin, i, document, activeRuleSet.IgnoreCase))
{
PushCurWord(document, ref markNext, words, firstWord);
string regex = GetRegString(currentLine, span.Begin, i, document);
//if (!OverrideSpan(regex, document, words, span, ref i)) {
currentLength += regex.Length;
words.Add(new TextWord(document, currentLine, currentOffset, currentLength, span.BeginColor ?? span.Color, false));
currentOffset += currentLength;
currentLength = 0;
i += regex.Length - 1;
if (currentSpanStack == null)
{
currentSpanStack = new List <Ca65Span>();
}
currentSpanStack.Add(span);
span.IgnoreCase = activeRuleSet.IgnoreCase;
inSpan = currentSpanStack != null && currentSpanStack.Count > 0;
activeSpan = inSpan ? currentSpanStack[currentSpanStack.Count - 1] : null;
activeRuleSet = new HighlightRuleSet();
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);
continue;
}
}
++currentLength;
@skip : continue;
}
}
PushCurWord(document, ref markNext, words, firstWord);
while (activeSpan != null && activeSpan.End != null && activeSpan.End[0] == '\n')
{
PopSpanStack();
}
//OnParsedLine(document, currentLine, words);
return(words);
}