protected string PrintTokenPaths(IList <int[]> paths)
{
return(paths.Join("\n", arr => {
Context.Entry e = null;
Token t = GetTokenAt(tokens, arr, ref e);
return arr.Join(", ") + ":" + t + " @" + ParseError.FilePositionOf(t, rows);
}));
}
public string FilePositionOf(Token token)
{
List <Context.Entry> traversed = new List <Context.Entry>();
while (!token.IsValid)
{
Context.Entry e = token.GetAsContextEntry();
if (e == null || traversed.IndexOf(e) >= 0)
{
return("???");
}
traversed.Add(e);
token = e.tokens[0];
}
return(ParseError.FilePositionOf(token, rows));
}
public string FilePositionOf(Token token)
{
List <SyntaxTree> traversed = new List <SyntaxTree>();
while (!token.IsValid)
{
SyntaxTree e = token.GetAsSyntaxNode();
if (e == null || traversed.IndexOf(e) >= 0)
{
return("???");
}
traversed.Add(e);
token = e.tokens[0];
}
return(ParseError.FilePositionOf(token, rows));
}
public static string Format(string format, List <object> args, object scope, Tokenizer tok, int tIndex)
{
StringBuilder sb = new StringBuilder();
int index = 0, start, end, tokenId;
do
{
end = FindEndOfNextToken(tok, tIndex, format, index, out start, out tokenId);
if (end < 0)
{
sb.Append(format.Substring(index));
index = format.Length;
}
else
{
if (tokenId < 0 || tokenId >= args.Count)
{
ParseError err = tok.AddError(tIndex, "invalid format token index (limit " +
args.Count + ")" + (tokenId < 0 ? "" : (" " + tokenId.ToString()))); err.col += start;
sb.Append(format.Substring(index, end - index));
}
else
{
if (index != start)
{
sb.Append(format.Substring(index, start - index));
}
string str = format.Substring(start, end - start);
str = str.Replace("{" + tokenId, "{" + 0);
sb.AppendFormat(str, args[tokenId]);
}
index = end;
}
} while (index < format.Length);
return(sb.ToString());
}
public void AddError(ParseError error)
{
errors.Add(error);
}
public ParseError AddError(int index, string message)
{
ParseError e = new ParseError(index, rows, message); errors.Add(e); return(e);
}
public void FilePositionOf(Token token, out int row, out int col)
{
ParseError.FilePositionOf(token, rows, out row, out col);
}
public static int FindEndOfNextToken(Tokenizer tok, int startI, string str, int index, out int started, out int tokenId)
{
started = -1;
tokenId = -1;
for (int i = index; i < str.Length; ++i)
{
char c = str[i];
switch (c)
{
case '{':
if (i + 1 >= str.Length)
{
ParseError err = tok.AddError(startI + i, "unexpected end of format token" +
(tokenId < 0?"": (" " + tokenId.ToString())));
return(-1);
}
if (str[i + 1] != '{')
{
if (started >= 0)
{
ParseError err = tok.AddError(startI + i, "unexpected beginning of new format token" +
(tokenId < 0 ? "" : (" " + tokenId.ToString())));
return(-1);
}
else
{
started = i;
ParseResult pr = IntegerParse(str, i + 1);
if (pr.IsError)
{
pr.error.OffsetBy(startI + i, tok.rows);
tok.AddError(pr.error);
}
else
{
tokenId = (int)(long)pr.replacementValue;
}
}
}
else
{
++i;
}
break;
case '}':
if (started >= 0)
{
if (tokenId < 0)
{
ParseError err = tok.AddError(startI + i, "token missing leading base 10 integer index" +
(tokenId < 0 ? "" : (" " + tokenId.ToString())));
}
return(i + 1);
}
break;
}
}
if (started >= 0)
{
ParseError err = tok.AddError(startI + started, "expected end of format token" +
(tokenId < 0 ? "" : (" " + tokenId.ToString())));
}
return(-1);
}
public ParseResult SetError(string errorMessage, int index, int row, int col)
{
error = new ParseError(index, row, col, errorMessage); return(this);
}
public ParseResult(int length, object value, string err, int i, int r, int c)
{
lengthParsed = length; replacementValue = value; error = new ParseError(i, r, c, err);
}
public static ParseError AddError(this ITokenErrLog self, int index, string message)
{
ParseError e = new ParseError(index, self.GetTextRows(), message); self.AddError(e); return(e);
}
