/// <summary>
/// Identifies/detects a switch that takes no parameters.
/// </summary>
internal static bool IsParameterlessSwitch
(
string switchName
)
{
ParameterlessSwitch parameterlessSwitch;
string duplicateSwitchErrorMessage;
return(CommandLineSwitches.IsParameterlessSwitch(switchName, out parameterlessSwitch, out duplicateSwitchErrorMessage));
}
/// <summary>
/// Appends the given collection of command-line switches to this one.
/// </summary>
/// <remarks>
/// Command-line switches have left-to-right precedence i.e. switches on the right override switches on the left. As a
/// result, this "append" operation is also performed in a left-to-right manner -- the switches being appended to are
/// considered to be on the "left", and the switches being appended are on the "right".
/// </remarks>
/// <param name="switchesToAppend"></param>
internal void Append(CommandLineSwitches switchesToAppend)
{
// if this collection doesn't already have an error registered, but the collection being appended does
if (!HaveErrors() && switchesToAppend.HaveErrors())
{
// register the error from the given collection
// NOTE: we always store the first error found (parsing left-to-right), and since this collection is considered to
// be on the "left" of the collection being appended, the error flagged in this collection takes priority over the
// error in the collection being appended
_errorMessage = switchesToAppend._errorMessage;
_badCommandLineArg = switchesToAppend._badCommandLineArg;
_innerException = switchesToAppend._innerException;
_isParameterError = switchesToAppend._isParameterError;
}
// NOTE: we might run into some duplicate switch errors below, but if we've already registered the error from the
// collection being appended, all the duplicate switch errors will be ignored; this is fine because we really have no
// way of telling which error would occur first in the left-to-right order without keeping track of a lot more error
// information -- so we play it safe, and register the guaranteed error
// append the parameterless switches with left-to-right precedence, flagging duplicate switches as necessary
for (int i = 0; i < (int)ParameterlessSwitch.NumberOfParameterlessSwitches; i++)
{
if (switchesToAppend.IsParameterlessSwitchSet((ParameterlessSwitch)i))
{
if (!IsParameterlessSwitchSet((ParameterlessSwitch)i) ||
(s_parameterlessSwitchesMap[i].duplicateSwitchErrorMessage == null))
{
_parameterlessSwitches[i].commandLineArg = switchesToAppend._parameterlessSwitches[i].commandLineArg;
}
else
{
SetSwitchError(s_parameterlessSwitchesMap[i].duplicateSwitchErrorMessage,
switchesToAppend.GetParameterlessSwitchCommandLineArg((ParameterlessSwitch)i));
}
}
}
// append the parameterized switches with left-to-right precedence, flagging duplicate switches as necessary
for (int j = 0; j < (int)ParameterizedSwitch.NumberOfParameterizedSwitches; j++)
{
if (switchesToAppend.IsParameterizedSwitchSet((ParameterizedSwitch)j))
{
if (!IsParameterizedSwitchSet((ParameterizedSwitch)j) ||
(s_parameterizedSwitchesMap[j].duplicateSwitchErrorMessage == null))
{
if (_parameterizedSwitches[j].commandLineArg == null)
{
_parameterizedSwitches[j].parameters = new ArrayList();
}
_parameterizedSwitches[j].commandLineArg = switchesToAppend._parameterizedSwitches[j].commandLineArg;
_parameterizedSwitches[j].parameters.AddRange(switchesToAppend._parameterizedSwitches[j].parameters);
}
else
{
SetSwitchError(s_parameterizedSwitchesMap[j].duplicateSwitchErrorMessage,
switchesToAppend.GetParameterizedSwitchCommandLineArg((ParameterizedSwitch)j));
}
}
}
}