private CodeExpression GetSubstitutedString(string text, ParameterSubstitution paramToIdentifier)
{
if (text == null)
{
return(new CodeCastExpression(typeof(string), new CodePrimitiveExpression(null)));
}
if (paramToIdentifier == null)
{
return(new CodePrimitiveExpression(text));
}
Regex paramRe = new Regex(@"\<(?<param>[^\>]+)\>");
string formatText = text.Replace("{", "{{").Replace("}", "}}");
List <string> arguments = new List <string>();
formatText = paramRe.Replace(formatText, match =>
{
string param = match.Groups["param"].Value;
string id;
if (!paramToIdentifier.TryGetIdentifier(param, out id))
{
return(match.Value);
}
int argIndex = arguments.IndexOf(id);
if (argIndex < 0)
{
argIndex = arguments.Count;
arguments.Add(id);
}
return("{" + argIndex + "}");
});
if (arguments.Count == 0)
{
return(new CodePrimitiveExpression(text));
}
var formatArguments = new List <CodeExpression> {
new CodePrimitiveExpression(formatText)
};
formatArguments.AddRange(arguments.Select(id => new CodeVariableReferenceExpression(id))
.Cast <CodeExpression>());
return(new CodeMethodInvokeExpression(
new CodeTypeReferenceExpression(typeof(string)),
"Format",
formatArguments.ToArray()));
}
public static CodeExpression GetSubstitutedString(this ParameterSubstitution paramToIdentifier, string text)
{
if (text == null)
{
return(new CodeCastExpression(typeof(string), new CodePrimitiveExpression(null)));
}
if (paramToIdentifier == null)
{
return(new CodePrimitiveExpression(text));
}
var regex = new Regex("\\<(?<param>[^\\>]+)\\>");
var input = text.Replace("{", "{{").Replace("}", "}}");
var arguments = new List <string>();
MatchEvaluator evaluator = match =>
{
if (!paramToIdentifier.TryGetIdentifier(match.Groups["param"].Value, out string id))
{
return(match.Value);
}
int num = arguments.IndexOf(id);
if (num < 0)
{
num = arguments.Count;
arguments.Add(id);
}
return("{" + num + "}");
};
string str2 = regex.Replace(input, evaluator);
if (arguments.Count == 0)
{
return(new CodePrimitiveExpression(text));
}
var codeExpressionList = new List <CodeExpression> {
new CodePrimitiveExpression(str2)
};
codeExpressionList.AddRange(arguments.Select(id => new CodeVariableReferenceExpression(id)).Cast <CodeExpression>());
return(new CodeMethodInvokeExpression(new CodeTypeReferenceExpression(typeof(string)), "Format", codeExpressionList.ToArray()));
}