/// <summary>
/// Adds the given query (new format) to the list of queries to be
/// evaluated.
/// </summary>
/// <param name="id">
/// The unique id of the query
/// </param>
/// <param name="query">
/// The query function to be evaluated
/// </param>
public void AddQuery(string id, Query query)
{
if (QueryMap.ContainsKey(id))
{
throw new Exception("A query with id '" + id + "' already exists");
}
QueryMap.Add(id, query);
}
public void ValueQuery(string name, double value, bool OverWriteIfExistent = false)
{
Query query = (app, t) => value;
if (QueryMap.ContainsKey(name))
{
if (!OverWriteIfExistent)
{
throw new Exception("A query with id '" + name + "' already exists");
}
else
{
QueryMap[name] = query;
}
}
else
{
QueryMap.Add(name, query);
}
}
public ExprOp ParseQueryExpr(QueryLexerTokenKind tokContext, bool subExpression = false)
{
ExprOp limiter = null;
ExprOp next;
while ((next = ParseOrExpr(tokContext)) != null)
{
if (limiter == null)
{
limiter = next;
}
else
{
ExprOp prev = limiter;
limiter = new ExprOp(OpKindEnum.O_OR);
limiter.Left = prev;
limiter.Right = next;
}
}
if (!subExpression)
{
if (limiter != null)
{
QueryMap.Add(QueryKindEnum.QUERY_LIMIT, new Predicate(limiter, WhatToKeep).PrintToStr());
}
QueryLexerToken tok = Lexer.PeekToken(tokContext);
while (tok.Kind != QueryLexerTokenKind.END_REACHED)
{
switch (tok.Kind)
{
case QueryLexerTokenKind.TOK_SHOW:
case QueryLexerTokenKind.TOK_ONLY:
case QueryLexerTokenKind.TOK_BOLD:
{
Lexer.NextToken(tokContext);
QueryKindEnum kind;
switch (tok.Kind)
{
case QueryLexerTokenKind.TOK_SHOW:
kind = QueryKindEnum.QUERY_SHOW;
break;
case QueryLexerTokenKind.TOK_ONLY:
kind = QueryKindEnum.QUERY_ONLY;
break;
case QueryLexerTokenKind.TOK_BOLD:
kind = QueryKindEnum.QUERY_BOLD;
break;
default:
throw new InvalidOperationException("To avoid using unassigned QueryKindEnum kind...");
}
ExprOp node = next = null;
while ((next = ParseOrExpr(tokContext)) != null)
{
if (node == null)
{
node = next;
}
else
{
ExprOp prev = node;
node = new ExprOp(OpKindEnum.O_OR);
node.Left = prev;
node.Right = next;
}
}
if (node != null)
{
QueryMap.Add(kind, new Predicate(node, WhatToKeep).PrintToStr());
}
break;
}
case QueryLexerTokenKind.TOK_FOR:
case QueryLexerTokenKind.TOK_SINCE:
case QueryLexerTokenKind.TOK_UNTIL:
{
tok = Lexer.NextToken(tokContext);
string forString = string.Empty;
if (tok.Kind == QueryLexerTokenKind.TOK_SINCE)
{
forString = "since";
}
else if (tok.Kind == QueryLexerTokenKind.TOK_UNTIL)
{
forString = "until";
}
Lexer.ConsumeNextArg = true;
tok = Lexer.PeekToken(tokContext);
while (tok.Kind != QueryLexerTokenKind.END_REACHED)
{
tok = Lexer.NextToken(tokContext);
if (tok.Kind != QueryLexerTokenKind.TERM)
{
throw new InvalidOperationException();
}
if (tok.Value == "show" || tok.Value == "bold" || tok.Value == "for" || tok.Value == "since" || tok.Value == "until")
{
Lexer.SetPrev();
Lexer.ConsumeNextArg = false;
break;
}
if (!String.IsNullOrEmpty(forString))
{
forString += " ";
}
forString += tok.Value;
Lexer.ConsumeNextArg = true;
tok = Lexer.PeekToken(tokContext);
}
if (!String.IsNullOrEmpty(forString))
{
QueryMap.Add(QueryKindEnum.QUERY_FOR, forString);
}
break;
}
default:
goto done;
}
tok = Lexer.PeekToken(tokContext);
}
done :;
}
return(limiter);
}