public static string GetOptionHelpGroup(OptionTable opts,
OptionSpecifier id)
{
var groupId = opts.GetOptionGroupId(id);
// If not in a group, return the default help group.
if (groupId == 0)
{
return("OPTIONS");
}
// Abuse the help text of the option groups to store the "help group"
// name.
//
// FIXME: Split out option groups.
var groupHelp = opts.GetOptionHelpText(groupId);
if (!string.IsNullOrEmpty(groupHelp))
{
return(groupHelp);
}
// Otherwise keep looking.
return(GetOptionHelpGroup(opts,
groupId));
}
public Option(OptionInfo info,
OptionTable owner)
{
Info = info;
Owner = owner;
// Multi-level aliases are not supported. This just simplifies option
// tracking, it is not an inherent limitation.
Contract.Assert((Info == null || !GetAlias().IsValid() || !GetAlias().GetAlias().IsValid()),
"Multi-level aliases are not supported.");
if (Info != null &&
GetAliasArgs() != null)
{
Contract.Assert(GetAlias().IsValid(),
"Only alias options can have alias args.");
Contract.Assert(GetKind() == OptionKind.FlagClass,
"Only Flag aliases can have alias args.");
Contract.Assert(GetAlias().GetKind() != OptionKind.FlagClass,
"Cannot provide alias args to a flag option.");
}
}
public static string GetOptionHelpName(OptionTable opts,
OptionSpecifier id)
{
var o = opts.GetOption(id);
var name = o.GetPrefixedName();
string metaVarName;
// Add metavar, if used.
var kind = o.GetKind();
if (kind == OptionKind.GroupClass ||
kind == OptionKind.InputClass ||
kind == OptionKind.UnknownClass)
{
throw new Exception("Invalid option with help text.");
}
if (kind == OptionKind.MultiArgClass)
{
metaVarName = opts.GetOptionMetaVar(id);
if (!string.IsNullOrEmpty(metaVarName))
{
// For MultiArgs, metavar is full list of all argument names.
name += ' ';
name += metaVarName;
}
else
{
// For MultiArgs<N>, if metavar not supplied, print <value> N times.
for (int i = 0, e = o.GetNumArgs(); i < e; ++i)
{
name += " <value>";
}
}
}
else if (kind == OptionKind.FlagClass)
{
}
else if (kind == OptionKind.ValuesClass)
{
}
else if (kind == OptionKind.SeparateClass ||
kind == OptionKind.JoinedOrSeparateClass ||
kind == OptionKind.RemainingArgsClass ||
kind == OptionKind.RemainingArgsJoinedClass)
{
name += ' ';
metaVarName = opts.GetOptionMetaVar(id);
if (!string.IsNullOrEmpty(metaVarName))
{
name += metaVarName;
}
else
{
name += "<value>";
}
}
else if (kind == OptionKind.JoinedClass ||
kind == OptionKind.CommaJoinedClass ||
kind == OptionKind.JoinedAndSeparateClass)
{
metaVarName = opts.GetOptionMetaVar(id);
if (!string.IsNullOrEmpty(metaVarName))
{
name += metaVarName;
}
else
{
name += "<value>";
}
}
return(name);
}
public static ushort GetOptionAlias(this OptionTable optionTable, ushort optId)
{
var alias = optionTable._optionInfos.FirstOrDefault(item => item.Id == optId);
return(alias?.AliasId ?? optId);
}
