public static DmlfConditionBase ParseFilterExpression(FilterParserType type, DmlfExpression columnValue, string expression, ParserOptions options)
{
var opts = new FilterParseOptions();
switch (type)
{
case FilterParserType.String:
opts.ParseString = true;
break;
case FilterParserType.Number:
opts.ParseNumber = true;
break;
case FilterParserType.DateTime:
opts.ParseTime = true;
break;
case FilterParserType.Logical:
opts.ParseLogical = true;
break;
default:
throw new Exception("DBSH-00000 Unexpected filter parser type:" + type);
}
var parser = new DmlfFilterParser(expression, columnValue, opts);
parser.Run();
return(parser.Result);
}
private bool TestCondition(FilterParserType type, string condition, object testedValue)
{
var cond = FilterParserTool.ParseFilterExpression(type, new DmlfPlaceholderExpression(), condition);
var ns = new DmlfSingleValueNamespace(testedValue);
Assert.NotNull(cond);
return(cond.EvalCondition(ns));
}
public static DmlfConditionBase ParseFilterExpression(FilterParserType type, DmlfExpression columnValue, string expression, ParserOptions options = null)
{
if (expression == null)
{
return(null);
}
expression = TransformExpression(expression);
var res = FilterParserCoreImpl.ParseFilterExpression(type, columnValue, expression, options);
if (res != null)
{
res = res.SimplifyCondition();
}
return(res);
}
