/// <summary>
/// Determines whether the format string is valid.
/// </summary>
/// <param name="token">The token to evaluate.</param>
/// <returns>
/// <c>true</c> if the specified format contains the text; otherwise, <c>false</c>.
/// </returns>
internal static bool EvaluateFormat(string token)
{
if ((token == null) || (token == string.Empty))
{
return(false);
}
string str = DefaultTokens.TrimSquareBracket(token);
return(((str != null) && !(str == string.Empty)) && DefaultTokens.IsOperator(str[0]));
}
/// <summary>
/// Creates a new condition format with the specified string expression.
/// </summary>
/// <param name="token">The string expression for this format.</param>
/// <remarks>Examples of conditional string expressions are "[>10]" and "[>=0]".</remarks>
public ConditionFormatPart(string token) : base(token)
{
string str = DefaultTokens.TrimSquareBracket(token);
if (string.IsNullOrEmpty(str))
{
throw new ArgumentException(ResourceStrings.FormatterIllegaTokenError);
}
StringBuilder builder = null;
int num = 0;
while (num < str.Length)
{
char c = str[num];
if (!DefaultTokens.IsOperator(c))
{
break;
}
if (builder == null)
{
builder = new StringBuilder();
}
builder.Append(c);
num++;
}
if (builder == null)
{
throw new ArgumentException(ResourceStrings.FormatterIllegaTokenError);
}
string str2 = builder.ToString();
builder = null;
switch (str2)
{
case "<":
this.compareOperator = GeneralCompareType.LessThan;
break;
case "<=":
this.compareOperator = GeneralCompareType.LessThanOrEqualsTo;
break;
case "=":
this.compareOperator = GeneralCompareType.EqualsTo;
break;
case ">=":
this.compareOperator = GeneralCompareType.GreaterThanOrEqualsTo;
break;
case ">":
this.compareOperator = GeneralCompareType.GreaterThan;
break;
case "<>":
this.compareOperator = GeneralCompareType.NotEqualsTo;
break;
default:
throw new ArgumentException(ResourceStrings.FormatterIllegaTokenError);
}
while (num < str.Length)
{
char ch2 = str[num];
if (DefaultTokens.IsOperator(ch2))
{
throw new ArgumentException(ResourceStrings.FormatterIllegaTokenError);
}
if (builder == null)
{
builder = new StringBuilder();
}
builder.Append(ch2);
num++;
}
if (builder == null)
{
throw new ArgumentException(ResourceStrings.FormatterIllegaTokenError);
}
if (!double.TryParse(builder.ToString(), out this.value))
{
throw new ArgumentException(ResourceStrings.FormatterIllegaTokenError);
}
}