| private Eval ( Mode mode, int &ref_ptr, int pc ) : bool | ||
| mode | Mode | |
| ref_ptr | int | |
| pc | int | |
| return | bool | |
public bool Evaluate(string block, ScriptContext context)
{
var replacer = context.Get<IVariableReplacer>();
var scriptLog = context.Get<IScriptLog>();
var replaced = replacer.Replace(block, context);
// replace single equals with double equals
replaced = Regex.Replace(replaced, "([^=:<>])=(?!=)", "$1==");
if(context.DebugLevel > 0) {
scriptLog.Log(context.Name, "if {0}".ToFormat(replaced), context.LineNumber);
}
try
{
var interpreter = new Interpreter();
var result = (bool)interpreter.Eval(replaced);
if(context.DebugLevel > 0) {
scriptLog.Log(context.Name, "if result {0}".ToFormat(result.ToString().ToLower()), context.LineNumber);
}
return result;
}
catch(Exception exc)
{
scriptLog.Log(context.Name, "if result {0}".ToFormat(exc), context.LineNumber);
return false;
}
}
public override string RenderTag(string line, TemplateReader reader, Dictionary<string, object> parameters, int patternIndex)
{
Match lineMatch = Regex.Match(line.Trim(), RegularExpressionPatterns[patternIndex]);
String condition = lineMatch.Groups["condition"].Value;
var interpreter = new Interpreter();
foreach (var element in parameters)
{
interpreter.SetVariable(element.Key, element.Value, element.Value.GetType());
}
var result = interpreter.Eval<bool>(condition);
if (result)
return renderer.RenderBlock(reader.ReadBlock());
reader.ReadBlock();
return "";
}
public string callMixin(string line, TemplateReader reader, Dictionary<string, object> parameters, int patternIndex)
{
Match m = Regex.Match(line.Trim(), RegularExpressionPatterns[patternIndex]);
List<object> mixinParams = new List<object>();
String mixinName = m.Groups["name"].Value;
Mixin mixin = mixins[mixinName];
var interpreter = new Interpreter();
Dictionary<string, object> outerParameters = new Dictionary<string, object>();
foreach (var element in parameters)
{
interpreter.SetVariable(element.Key, element.Value, element.Value.GetType());
}
foreach (Capture cap in m.Groups["param"].Captures)
{
var result = interpreter.Eval(cap.Value);
mixinParams.Add(result);
}
if (mixinParams.Count != mixin.parameters.Count)
throw new TemplateException("Missmatch number of mixin arguments");
for (int i = 0; i < mixinParams.Count; i++)
{
if (parameters.ContainsKey(mixin.parameters[i]))
{
outerParameters.Add(mixin.parameters[i], parameters[mixin.parameters[i]]);
parameters[mixin.parameters[i]] = mixinParams[i];
}
else
{
parameters.Add(mixin.parameters[i], mixinParams[i]);
}
}
String blockRendered = renderer.RenderBlock(mixin.block);
foreach(var n in mixin.parameters)
{
parameters.Remove(n);
}
foreach(var p in outerParameters)
{
parameters.Add(p.Key, p.Value);
}
return blockRendered;
}