private void BeginParseField(ref PatternFieldResolveContext ctx)
{
ctx.parameter = null;
var vName = this.charValue;
_fieldResolver = TryGetResolver(vName);
}
private void EndParseField(ref PatternFieldResolveContext ctx)
{
var value = _fieldResolver(ctx);
if (value != null)
{
_messageBuilder.Append(value);
}
_fieldResolver = null;
}
private bool ReadCharValueIfNotParsingField(ref PatternFieldResolveContext context)
{
var charValue = this.charValue;
if (charValue == ESCAPE_CHAR)
{
if (!MoveNext())
{
return(false);
}
this.BeginParseField(ref context);
}
else
{
_messageBuilder.Append(charValue);
}
return(true);
}
public string Format(string pattern, ULogger logger, LogType type, object message)
{
var messageStr = message == null? "":message.ToString();
if (pattern == null)
{
return(messageStr);
}
_index = -1;
_pattern = pattern;
_messageBuilder = new StringBuilder();
_fieldParameterBuilder = null;
_fieldResolver = null;
var context = new PatternFieldResolveContext()
{
logger = logger,
logType = type,
message = messageStr
};
while (true)
{
if (!MoveNext())
{
break;
}
var charValue = this.charValue;
if (this.IsParsingField())
{
if (this.IsParsingFieldParameter())
{
if (charValue == PARAMETER_END_CHAR)
{
var p = this.EndParseFieldParameter();
context.parameter = p;
}
else
{
_fieldParameterBuilder.Append(charValue);
}
}
else
{
if (charValue == PARAMETER_BEGIN_CHAR)
{
BeginParseFieldParameter();
}
else
{
EndParseField(ref context);
if (!ReadCharValueIfNotParsingField(ref context))
{
break;
}
}
}
}
else
{
if (!ReadCharValueIfNotParsingField(ref context))
{
break;
}
}
}
if (IsParsingField())
{
EndParseField(ref context);
}
return(_messageBuilder.ToString());
}
