public Token[] Tokenize(string str, out bool isValid)
{
List <Token> tokens = new List <Token>();
int c = 0;
TokenMode currentToken = blockStartToken;
var pathways = currentToken.Pathways;
while (true)
{
while (c < str.Length && char.IsWhiteSpace(str[c]))
{
++c;
}
if (c >= str.Length)
{
break;
}
String rest = str.Substring(c, str.Length - c);
int origC = c;
foreach (var pathway in universalPathways.Concat(pathways))
{
foreach (var pattern in pathway.Patterns)
{
var match = Regex.Match(rest, pattern);
if (match.Success && match.Value.Length > 0)
{
tokens.Add(new Token()
{
PointInString = c, String = match.Value, Mode = pathway
});
c += match.Value.Length;
currentToken = pathway;
if (currentToken.Pathways != null)
{
pathways = currentToken.Pathways;
}
//Console.WriteLine(currentToken.Name);
goto done;
}
}
}
done:
if (origC == c)
{
int end = Math.Min(str.Length, str.IndexOf('\r', c));
int cnt = Math.Min(end - c, 40);
Console.WriteLine("Unable to tokenize at " + c + ":\r\n" +
" " + str.Substring(c, cnt) + "\r\n" +
"from <" + currentToken.Name + "> pattern " + currentToken);
break;
}
}
isValid = (c == str.Length);
return(tokens.ToArray());
}
public static TokenMode GetBlockEndMode(TokenMode blockStart)
{
if (blockStart == parmStartToken)
{
return(parmEndToken);
}
if (blockStart == blockStartToken)
{
return(blockEndToken);
}
return(null);
}
public GrammarElementT(TokenMode mode, Func <Token, bool> validCheck)
{
Mode = mode; ValidityCheck = validCheck;
}
public GrammarElementT(TokenMode mode)
{
Mode = mode;
}
public static Token[] Tokenize(FileScope file)
{
Localization.Locale locale = file.CompilationScope.Locale;
string code = file.Content;
// Add a newline and a dummy character at the end.
// Set the length equal to the code with the newline but without the null terminator.
// This makes dereferencing the index + 1 code simpler and all makes the check for the end
// of word tokens and single-line comments easy.
code += "\n\0";
int length = code.Length - 1;
int[] lineByIndex = new int[code.Length];
int[] colByIndex = new int[code.Length];
char c;
int line = 0;
int col = 0;
for (int i = 0; i < code.Length; ++i)
{
c = code[i];
lineByIndex[i] = line;
colByIndex[i] = col;
if (c == '\n')
{
++line;
col = -1;
}
++col;
}
List <Token> tokens = new List <Token>();
TokenMode mode = TokenMode.NORMAL;
char modeSubtype = ' ';
int tokenStart = 0;
string tokenValue;
char c2;
bool isTokenEnd = false;
bool stringIsRaw = false;
for (int i = 0; i < length; ++i)
{
c = code[i];
switch (mode)
{
case TokenMode.COMMENT:
if (modeSubtype == '*')
{
if (c == '*' && code[i + 1] == '/')
{
++i;
mode = TokenMode.NORMAL;
}
}
else
{
if (c == '\n')
{
mode = TokenMode.NORMAL;
}
}
break;
case TokenMode.NORMAL:
if (WHITESPACE.Contains(c))
{
// do nothing
}
else if (c == '/' && (code[i + 1] == '/' || code[i + 1] == '*'))
{
mode = TokenMode.COMMENT;
modeSubtype = code[++i];
}
else if (IsIdentifierChar(c))
{
tokenStart = i;
mode = TokenMode.WORD;
}
else if (c == '"' | c == '\'')
{
tokenStart = i;
mode = TokenMode.STRING;
modeSubtype = c;
stringIsRaw = tokens.Count > 0 && tokens[tokens.Count - 1].Value == "@";
}
else
{
if (c == '.')
{
c2 = code[i + 1];
if (c2 >= '0' && c2 <= '9')
{
mode = TokenMode.WORD;
tokenStart = i++;
}
}
if (mode == TokenMode.NORMAL)
{
tokens.Add(new Token(c.ToString(), TokenType.PUNCTUATION, file, lineByIndex[i], colByIndex[i]));
}
}
break;
case TokenMode.STRING:
if (c == modeSubtype)
{
tokenValue = code.Substring(tokenStart, i - tokenStart + 1);
tokens.Add(new Token(tokenValue, TokenType.STRING, file, lineByIndex[i], colByIndex[i]));
mode = TokenMode.NORMAL;
}
else if (!stringIsRaw && c == '\\')
{
++i;
}
break;
case TokenMode.WORD:
isTokenEnd = false;
if (IsIdentifierChar(c))
{
// do nothing
}
else if (c == '.')
{
if (code[tokenStart] >= '0' && code[tokenStart] <= '9')
{
// do nothing
}
else
{
isTokenEnd = true;
}
}
else
{
isTokenEnd = true;
}
if (isTokenEnd)
{
tokenValue = code.Substring(tokenStart, i - tokenStart);
c = tokenValue[0];
TokenType type = TokenType.WORD;
if ((c >= '0' && c <= '9') || c == '.')
{
type = TokenType.NUMBER;
}
else if (!locale.Keywords.IsValidVariable(tokenValue))
{
type = TokenType.KEYWORD;
}
tokens.Add(new Token(tokenValue, type, file, lineByIndex[tokenStart], colByIndex[tokenStart]));
mode = TokenMode.NORMAL;
--i;
}
break;
}
}
switch (mode)
{
case TokenMode.COMMENT:
throw new ParserException(file, "There is an unclosed comment in this file.");
case TokenMode.STRING:
throw new ParserException(file, "There is an unclosed string in this file.");
case TokenMode.WORD:
throw new System.InvalidOperationException();
default:
break;
}
return(tokens.ToArray());
}
private MethodDef(IMethodDef original, string name = null, string returnType = null, XmlElement summary = null, XmlElement returnDescription = null, IException exception = null,
ReadOnlyCollection <GenericArg> genericArgs = null, ReadOnlyCollection <Parameter> parameters = null, XmlElement bodyElement = null, XmlElement syncBodyElement = null,
XmlElement asyncBodyElement = null, XmlElement syncAsyncBodyElement = null, XmlElement streamBodyElement = null,
XmlElement tokenBodyElement = null, string overload = null, bool?needsStream = null, bool?streamSerial = null, bool?needsAsync = null, TokenMode tokenMode = TokenMode.None)
{
methodDefXml = original.GetMethodDefXml();
Name = name ?? original.Name;
ReturnType = returnType ?? original.ReturnType;
Summary = summary ?? original.Summary;
ReturnDescription = returnDescription ?? original.ReturnDescription;
Exception = exception ?? (original.Exception != null ? new Exception(original.Exception) : null);
GenericArgs = genericArgs != null && genericArgs.Count > 0 ? genericArgs : original.GenericArgs?.Select(a => new GenericArg(a)).ToReadOnlyList();
Parameters = parameters != null && parameters.Count > 0 ? parameters : original.Parameters?.Select(p => new Parameter(p)).ToReadOnlyList();
BodyElement = bodyElement ?? (XmlElement)original.BodyElement?.CloneNode(true);
SyncBodyElement = syncBodyElement ?? (XmlElement)original.SyncBodyElement?.CloneNode(true);
AsyncBodyElement = asyncBodyElement ?? (XmlElement)original.AsyncBodyElement?.CloneNode(true);
SyncAsyncBodyElement = syncAsyncBodyElement ?? (XmlElement)original.SyncAsyncBodyElement?.CloneNode(true);
StreamBodyElement = streamBodyElement ?? (XmlElement)original.StreamBodyElement?.CloneNode(true);
TokenBodyElement = tokenBodyElement ?? (XmlElement)original.TokenBodyElement?.CloneNode(true);
Overload = overload ?? original.Overload;
NeedsStream = needsStream.HasValue ? needsStream.Value : original.NeedsStream;
NeedsAsync = needsAsync.HasValue ? needsAsync.Value : original.NeedsAsync;
TokenMode = tokenMode != TokenMode.None ? tokenMode : original.TokenMode;
}
