/// <summary>
/// Handler of general containers.
/// Moving upward from deepest container.
///
/// $(name) or $(name:project) or $([MSBuild]::MakeRelative($(path1), ...):project) ..
/// https://msdn.microsoft.com/en-us/library/vstudio/dd633440%28v=vs.120%29.aspx
/// </summary>
/// <param name="data"></param>
/// <param name="sh"></param>
/// <param name="limit">Limitation to containers. Aborts if reached</param>
/// <exception cref="LimitException"></exception>
/// <returns></returns>
protected string containerIn(string data, StringHandler sh, uint limit)
{
Regex con = new Regex(RPattern.ContainerIn, RegexOptions.IgnorePatternWhitespace | RegexOptions.Compiled);
int maxRep = 1; // rule of depth, e.g.: $(p1 = $(Platform))$(p2 = $(p1))$(p2)
//TODO: it's slowest but fully compatible with classic rules with minimal programming.. so, improve performance
uint step = 0;
do
{
if(step++ > limit) {
throw new LimitException("Restriction of supported containers '{0}' reached. Aborted.", limit);
}
data = con.Replace(data, delegate(Match m)
{
string raw = m.Groups[1].Value;
Log.Trace("containerIn: raw - '{0}'", raw);
return evaluate(prepare(sh.recovery(raw)));
}, maxRep);
// protect before new checking
data = sh.protectEscContainer(sh.protectSingleQuotes(data));
} while(con.IsMatch(data));
return data;
}
/// <summary>
/// Entry point to evaluating MSBuild data.
/// </summary>
/// <param name="data">mixed data</param>
/// <returns>All evaluated values for data</returns>
public virtual string parse(string data)
{
if(String.IsNullOrEmpty(data)) {
return String.Empty; // convert to not null value
}
if(String.IsNullOrWhiteSpace(data)) {
return data; // save all white-space characters
}
StringHandler sh = new StringHandler();
lock(_lock)
{
return sh.recovery(
containerIn(
sh.protectEscContainer(
sh.protectSingleQuotes(data)
),
sh, CONTAINERS_LIMIT
)
);
}
}