/// <summary>
/// Parses the arguments
/// </summary>
/// <param name="args">e.g. "-config:prod.xml", "-date:T-1", "BloombergFutOpt"</param>
/// <param name="prefix">Character used to prefix the name
/// of a named parameter. e.g. "-" as in "-config:prod.xml"
/// Leave null or string.emtpy to indicate there is no prefix.
/// In which case, only the <paramref name="separator"/> is used to distinguish
/// namevalue pairs.</param>
/// <param name="separator">Character used to separate the named
/// argument with it's value in a named argument. e.g. ":" as in "-config:prod.xml"
/// If this is null or string.empty, in addition to the <paramref name="prefix"/></param>
/// <returns></returns>
public static BoolMessageItem <Args> Parse(string[] args, string prefix, string separator)
{
// Validate the inputs.
BoolMessageItem <Args> validationResult = ArgsValidator.ValidateInputs(args, prefix, separator);
if (!validationResult.Success)
{
return(validationResult);
}
bool checkNamedArgs = !string.IsNullOrEmpty(separator);
bool hasPrefix = !string.IsNullOrEmpty(prefix);
// Name of argument can only be letter, number, (-,_,.).
// The value can be anything.
string patternKeyValue = @"(?<name>[a-zA-Z0-9\-_\.]+)" + separator + @"(?<value>.+)";
string patternBool = @"(?<name>[a-zA-Z0-9\-_\.]+)";
patternKeyValue = hasPrefix ? prefix + patternKeyValue : patternKeyValue;
patternBool = hasPrefix ? prefix + patternBool : patternBool;
Args resultArgs = new Args(args, prefix, separator);
List <string> errors = new List <string>();
// Put the arguments into the named args dictionary and/or list.
if (checkNamedArgs)
{
Parse(args, resultArgs.Named, resultArgs.Positional, patternKeyValue, patternBool);
}
else
{
resultArgs.Positional = new List <string>(args);
}
return(new BoolMessageItem <Args>(resultArgs, true, string.Empty));
}
/// <summary>
/// Parses the arguments and checks for named arguments and non-named arguments.
/// </summary>
/// <param name="args">e.g. "-config:prod.xml", "-date:T-1", "BloombergFutOpt"</param>
/// <param name="prefix">Character used to identifiy the name
/// of a named parameter. e.g. "-" as in "-config:prod.xml"
/// Leave null or string.emtpy to indicate there is no prefix.
/// In which case, only the <paramref name="separator"/> is used to distinguish
/// namevalue pairs.</param>
/// <param name="separator">Character used to separate the named
/// argument with it's value in a named argument. e.g. ":" as in "-config:prod.xml"
/// If this is null or string.empty, in addition to the <paramref name="prefix"/></param>
/// <param name="argsSpec">List of expected argument definitions(both named and positional).</param>
/// <returns></returns>
public static BoolMessageItem <Args> Parse(string[] args, string prefix, string separator, List <ArgAttribute> argsSpec)
{
// Parse the args first.
BoolMessageItem <Args> parseResult = Parse(args, prefix, separator);
if (!parseResult.Success)
{
return(parseResult);
}
Args resultArgs = parseResult.Item;
List <string> errors = new List <string>();
// Set the named argument values on the object's properties.
if (argsSpec != null && argsSpec.Count > 0)
{
ArgsValidator.Validate(resultArgs, argsSpec, errors, null);
}
string singleMessage = string.Empty;
foreach (string error in errors)
{
singleMessage += error + Environment.NewLine;
}
return(new BoolMessageItem <Args>(resultArgs, errors.Count == 0, singleMessage));
}
/// <summary>
/// Parses the arguments into a <see cref="Args"/>
/// </summary>
/// <param name="args">e.g. "-env:prod", "-config:prod.xml", "-date:T-1", "20"</param>
/// <param name="prefix">Prefix used for named arguments. E.g. "-" as in "-env:prod"</param>
/// <param name="separator">Separator used between name and value of named arguments. E.g. ":" as in "-env:prod"</param>
/// <param name="argsSpec">List of expected argument items(both named and positional).</param>
/// <returns></returns>
public static BoolMessageItem <Args> Parse(string[] args, string prefix, string separator, List <ArgAttribute> argsSpec)
{
// Parse the args first.
BoolMessageItem <Args> parseResult = Parse(args, prefix, separator);
if (!parseResult.Success)
{
return(parseResult);
}
Args resultArgs = parseResult.Item;
// 1. Set the schema.
resultArgs.Schema.Items = argsSpec;
// 2. Parse interpreted values like ${today}.
ArgsHelper.InterpretValues(resultArgs);
// 3. Validate the values.
var errors = new List <string>();
if (argsSpec != null && argsSpec.Count > 0)
{
ArgsValidator.Validate(resultArgs, argsSpec, errors, null);
}
string singleMessage = string.Empty;
foreach (string error in errors)
{
singleMessage += error + Environment.NewLine;
}
return(new BoolMessageItem <Args>(resultArgs, errors.Count == 0, singleMessage));
}
/// <summary>
/// Applies the argument values to the object argument reciever.
/// </summary>
/// <param name="parsedArgs"></param>
/// <param name="argReciever"></param>
/// <param name="errors"></param>
public static void CheckAndApplyArgs(Args parsedArgs, object argReciever, IList <string> errors)
{
List <KeyValuePair <ArgAttribute, PropertyInfo> > mappings = Attributes.GetPropsWithAttributesList <ArgAttribute>(argReciever);
List <ArgAttribute> argSpecs = new List <ArgAttribute>();
mappings.ForEach((pair) => argSpecs.Add(pair.Key));
// Set the supplied argument value on the object that should recieve the value.
ArgsValidator.Validate(parsedArgs, argSpecs, errors, (argAttr, argVal, ndx) =>
{
SetValue(argReciever, mappings[ndx], argVal);
});
}
