public static bool TryParse(string version, out IVersionSpecification specification)
{
if (!VersionStringHelpers.IsVersionWellFormed(version))
{
specification = null;
return(false);
}
specification = new ExactVersionSpecification(version);
return(true);
}
public static bool TryParse(string range, out IVersionSpecification specification)
{
bool startInclusive = false;
bool endInclusive = false;
if (range.StartsWith("["))
{
startInclusive = true;
}
else if (!range.StartsWith("("))
{
specification = null;
return(false);
}
if (range.EndsWith("]"))
{
endInclusive = true;
}
else if (!range.EndsWith(")"))
{
specification = null;
return(false);
}
string[] parts = range.Split('-');
if (parts.Length != 2)
{
specification = null;
return(false);
}
string startVersion = parts[0].Substring(1);
string endVersion = parts[1].Substring(0, parts[1].Length - 1);
if (IsWildcardVersion(startVersion) && IsWildcardVersion(endVersion))
{
specification = null;
return(false);
}
else if (!IsWildcardVersion(startVersion) && !VersionStringHelpers.IsVersionWellFormed(startVersion))
{
specification = null;
return(false);
}
else if (!IsWildcardVersion(endVersion) && !VersionStringHelpers.IsVersionWellFormed(endVersion))
{
specification = null;
return(false);
}
specification = new RangeVersionSpecification(startVersion, endVersion, startInclusive, endInclusive);
return(true);
}
public bool CheckIfVersionIsValid(string versionToCheck)
{
bool isStartValid;
bool isEndValid;
if (!IsWildcardVersion(MinVersion))
{
int?startComparison = VersionStringHelpers.CompareVersions(MinVersion, versionToCheck);
if (startComparison == null)
{
return(false);
}
if (IsStartInclusive)
{
isStartValid = startComparison.Value <= 0;
}
else
{
isStartValid = startComparison.Value < 0;
}
}
else
{
isStartValid = true;
}
if (!IsWildcardVersion(MaxVersion))
{
int?endComparison = VersionStringHelpers.CompareVersions(versionToCheck, MaxVersion);
if (endComparison == null)
{
return(false);
}
if (IsEndInclusive)
{
isEndValid = endComparison.Value <= 0;
}
else
{
isEndValid = endComparison.Value < 0;
}
}
else
{
isEndValid = true;
}
return(isStartValid && isEndValid);
}
public bool CheckIfVersionIsValid(string versionToCheck)
{
int?result = VersionStringHelpers.CompareVersions(RequiredVersion, versionToCheck);
return(result.HasValue && result.Value == 0);
}