public void SetParser(Lalr1Parser parser)
{
if (null != _lalr1Parser)
{
_lalr1Parser.Close();
}
_lalr1Parser = parser;
if (null != _ll1Parser)
{
_ll1Parser.Close();
}
_ll1Parser = null;
}
public static IList <CfgMessage> TryToLalr1Parser(this CfgDocument cfg, out Lalr1Parser parser, IEnumerable <Token> tokenizer = null, IProgress <CfgLalr1Progress> progress = null)
{
CfgLalr1ParseTable parseTable;
var result = TryToLalr1ParseTable(cfg, progress, out parseTable);
var syms = new List <string>();
cfg.FillSymbols(syms);
var nodeFlags = new int[syms.Count];
for (var i = 0; i < nodeFlags.Length; i++)
{
var o = cfg.GetAttribute(syms[i], "hidden", false);
if (o is bool && (bool)o)
{
nodeFlags[i] |= 2;
}
o = cfg.GetAttribute(syms[i], "collapsed", false);
if (o is bool && (bool)o)
{
nodeFlags[i] |= 1;
}
}
var substitutions = new int[syms.Count];
for (var i = 0; i < substitutions.Length; i++)
{
var s = cfg.GetAttribute(syms[i], "substitute", null) as string;
if (!string.IsNullOrEmpty(s) && cfg.IsSymbol(s) && s != syms[i])
{
substitutions[i] = cfg.GetIdOfSymbol(s);
}
else
{
substitutions[i] = -1;
}
}
var attrSets = new KeyValuePair <string, object> [syms.Count][];
for (var i = 0; i < attrSets.Length; i++)
{
CfgAttributeList attrs;
if (cfg.AttributeSets.TryGetValue(syms[i], out attrs))
{
attrSets[i] = new KeyValuePair <string, object> [attrs.Count];
var j = 0;
foreach (var attr in attrs)
{
attrSets[i][j] = new KeyValuePair <string, object>(attr.Name, attr.Value);
++j;
}
}
else
{
attrSets[i] = null; // new KeyValuePair<string, object>[0];
}
}
var ss = cfg.GetIdOfSymbol(cfg.StartSymbol);
var ntc = cfg.FillNonTerminals().Count;
parser = new Lalr1TableParser(parseTable.ToArray(syms), syms.ToArray(), nodeFlags, substitutions, attrSets, tokenizer);
return(result);
}
