private int _lines; // source lines counter
/// <summary>
/// Initializes new instance of a scanner object with given source
/// </summary>
/// <param name="source">Source for scanning</param>
/// <remarks>
/// <paramref name="source"/> must not be null
/// </remarks>
protected Scanner(IScannerSource source)
{
Debug.Assert(source != null, "Scanner source must not be null");
_source = source;
_lines = 0;
}
private string[] keywords; // all keywords
// construct scanner instance for given source
public CSScanner(IScannerSource source) :
base(source)
{
all = new CharSet();
all.Add('\u0001', '\uFFFF');
numeric = new CharSet();
numeric.Add('0', '9');
hexadecimal = new CharSet();
hexadecimal.Add('0', '9');
hexadecimal.Add('A', 'F');
hexadecimal.Add('a', 'f');
alpha = new CharSet();
alpha.Add('_');
alpha.Add('A', 'Z');
alpha.Add('a', 'z');
// TODO: refine alpha range
alpha.Add('\u0100', '\uFFFF');
alphanum = new CharSet(alpha);
alphanum.Add('0', '9');
hexprefixes = new string[]
{
"0x", "0X"
};
escapes = new string[]
{
"\\'", "\\\"", "\\\\",
"\\t", "\\r", "\\n", "\\b", "\\f", "\\0"
};
compounds = new string[]
{
"<<=", ">>=",
"==", "!=", "=>", "&&", "??", "++", "--", "||", ">=", "<=",
"+=", "-=", "/=", "*=", "%=", "&=", "|=", "^=", "->"
};
keywords = new string[]
{
"abstract", "as", "base", "bool", "break", "byte", "case", "catch",
"char", "checked", "class", "const", "continue", "decimal", "default",
"delegate", "do", "double", "else", "enum", "event", "extern", "false",
"finally", "float", "for", "foreach", "get", "goto", "if", "int",
"interface", "internal", "is", "lock", "long", "namespace", "new", "null",
"object", "operator", "out", "override", "params", "partial", "private",
"protected", "public", "readonly", "ref", "return", "sbyte", "set", "short",
"sizeof", "static", "string", "struct", "switch", "this", "throw", "true",
"try", "typeof", "uint", "ulong", "unchecked", "unsafe", "using", "ushort",
"var", "virtual", "void", "while", "yield"
};
}
internal Scanner(IScannerSource source, ScannerErrorHandler errorHandler)
{
this._source = source;
this._errorHandler = errorHandler;
}