internal override IEnumerable <HelpInfo> ExactMatchHelp(HelpRequest helpRequest)
{
CommandInfo commandInfo = null;
try
{
commandInfo = this._commandDiscovery.LookupCommandInfo(helpRequest.Target);
}
catch (CommandNotFoundException)
{
}
if ((commandInfo != null) && (commandInfo.CommandType == CommandTypes.Alias))
{
AliasInfo aliasInfo = (AliasInfo)commandInfo;
HelpInfo helpInfo = AliasHelpInfo.GetHelpInfo(aliasInfo);
if (helpInfo != null)
{
yield return(helpInfo);
goto Label_PostSwitchInIterator;
}
}
yield break;
Label_PostSwitchInIterator :;
}
/// <summary>
/// Exact match an alias help target.
/// </summary>
/// <remarks>
/// This will
/// a. use _commandDiscovery object to retrieve AliasInfo object.
/// b. Create AliasHelpInfo object based on AliasInfo object
/// </remarks>
/// <param name="helpRequest">Help request object.</param>
/// <returns>Help info found.</returns>
internal override IEnumerable <HelpInfo> ExactMatchHelp(HelpRequest helpRequest)
{
CommandInfo commandInfo = null;
try
{
commandInfo = _commandDiscovery.LookupCommandInfo(helpRequest.Target);
}
catch (CommandNotFoundException)
{
// CommandNotFoundException is expected here if target doesn't match any
// commandlet. Just ignore this exception and bail out.
}
if ((commandInfo != null) && (commandInfo.CommandType == CommandTypes.Alias))
{
AliasInfo aliasInfo = (AliasInfo)commandInfo;
HelpInfo helpInfo = AliasHelpInfo.GetHelpInfo(aliasInfo);
if (helpInfo != null)
{
yield return(helpInfo);
}
}
}
internal static AliasHelpInfo GetHelpInfo(AliasInfo aliasInfo)
{
if (aliasInfo == null)
{
return null;
}
if ((aliasInfo.ResolvedCommand == null) && (aliasInfo.UnresolvedCommandName == null))
{
return null;
}
AliasHelpInfo info = new AliasHelpInfo(aliasInfo);
if (string.IsNullOrEmpty(info.Name))
{
return null;
}
info.AddCommonHelpProperties();
return info;
}
internal static AliasHelpInfo GetHelpInfo(AliasInfo aliasInfo)
{
if (aliasInfo == null)
{
return(null);
}
if ((aliasInfo.ResolvedCommand == null) && (aliasInfo.UnresolvedCommandName == null))
{
return(null);
}
AliasHelpInfo info = new AliasHelpInfo(aliasInfo);
if (string.IsNullOrEmpty(info.Name))
{
return(null);
}
info.AddCommonHelpProperties();
return(info);
}
internal override IEnumerable <HelpInfo> ExactMatchHelp(
HelpRequest helpRequest)
{
using (AliasHelpProvider.tracer.TraceMethod())
{
CommandInfo commandInfo = (CommandInfo)null;
try
{
commandInfo = this._commandDiscovery.LookupCommandInfo(helpRequest.Target);
}
catch (CommandNotFoundException ex)
{
}
if (commandInfo != null && commandInfo.CommandType == CommandTypes.Alias)
{
AliasInfo aliasInfo = (AliasInfo)commandInfo;
HelpInfo helpInfo = (HelpInfo)AliasHelpInfo.GetHelpInfo(aliasInfo);
if (helpInfo != null)
{
yield return(helpInfo);
}
}
}
}
/// <summary>
/// Search an alias help target.
/// </summary>
/// <remarks>
/// This will,
/// a. use _sessionState object to get a list of alias that match the target.
/// b. for each alias, retrieve help info as in ExactMatchHelp.
/// </remarks>
/// <param name="helpRequest">Help request object.</param>
/// <param name="searchOnlyContent">
/// If true, searches for pattern in the help content. Individual
/// provider can decide which content to search in.
///
/// If false, searches for pattern in the command names.
/// </param>
/// <returns>A IEnumerable of helpinfo object.</returns>
internal override IEnumerable <HelpInfo> SearchHelp(HelpRequest helpRequest, bool searchOnlyContent)
{
// aliases do not have help content...so doing nothing in that case
if (!searchOnlyContent)
{
string target = helpRequest.Target;
string pattern = target;
Hashtable hashtable = new Hashtable(StringComparer.OrdinalIgnoreCase);
if (!WildcardPattern.ContainsWildcardCharacters(target))
{
pattern += "*";
}
WildcardPattern matcher = WildcardPattern.Get(pattern, WildcardOptions.IgnoreCase);
IDictionary <string, AliasInfo> aliasTable = _sessionState.Internal.GetAliasTable();
foreach (string name in aliasTable.Keys)
{
if (matcher.IsMatch(name))
{
HelpRequest exactMatchHelpRequest = helpRequest.Clone();
exactMatchHelpRequest.Target = name;
// Duplicates??
foreach (HelpInfo helpInfo in ExactMatchHelp(exactMatchHelpRequest))
{
// Component/Role/Functionality match is done only for SearchHelp
// as "get-help * -category alias" should not forwad help to
// CommandHelpProvider..(ExactMatchHelp does forward help to
// CommandHelpProvider)
if (!Match(helpInfo, helpRequest))
{
continue;
}
if (hashtable.ContainsKey(name))
{
continue;
}
hashtable.Add(name, null);
yield return(helpInfo);
}
}
}
CommandSearcher searcher =
new CommandSearcher(
pattern,
SearchResolutionOptions.ResolveAliasPatterns, CommandTypes.Alias,
_context);
while (searcher.MoveNext())
{
CommandInfo current = ((IEnumerator <CommandInfo>)searcher).Current;
if (_context.CurrentPipelineStopping)
{
yield break;
}
AliasInfo alias = current as AliasInfo;
if (alias != null)
{
string name = alias.Name;
HelpRequest exactMatchHelpRequest = helpRequest.Clone();
exactMatchHelpRequest.Target = name;
// Duplicates??
foreach (HelpInfo helpInfo in ExactMatchHelp(exactMatchHelpRequest))
{
// Component/Role/Functionality match is done only for SearchHelp
// as "get-help * -category alias" should not forwad help to
// CommandHelpProvider..(ExactMatchHelp does forward help to
// CommandHelpProvider)
if (!Match(helpInfo, helpRequest))
{
continue;
}
if (hashtable.ContainsKey(name))
{
continue;
}
hashtable.Add(name, null);
yield return(helpInfo);
}
}
}
foreach (CommandInfo current in ModuleUtils.GetMatchingCommands(pattern, _context, helpRequest.CommandOrigin))
{
if (_context.CurrentPipelineStopping)
{
yield break;
}
AliasInfo alias = current as AliasInfo;
if (alias != null)
{
string name = alias.Name;
HelpInfo helpInfo = AliasHelpInfo.GetHelpInfo(alias);
if (hashtable.ContainsKey(name))
{
continue;
}
hashtable.Add(name, null);
yield return(helpInfo);
}
}
}
}
/// <summary>
/// Creates an AliasHelpInfo instance based on an AliasInfo object.
/// This is the only way to create AliasHelpInfo object from outside this class.
/// </summary>
/// <param name="aliasInfo">AliasInfo object for which to create AliasHelpInfo object.</param>
/// <returns>AliasHelpInfo object.</returns>
internal static AliasHelpInfo GetHelpInfo(AliasInfo aliasInfo)
{
if (aliasInfo == null)
return null;
if (aliasInfo.ResolvedCommand == null && aliasInfo.UnresolvedCommandName == null)
return null;
AliasHelpInfo aliasHelpInfo = new AliasHelpInfo(aliasInfo);
if (String.IsNullOrEmpty(aliasHelpInfo.Name))
return null;
aliasHelpInfo.AddCommonHelpProperties();
return aliasHelpInfo;
}
internal override IEnumerable <HelpInfo> SearchHelp(HelpRequest helpRequest, bool searchOnlyContent)
{
if (!searchOnlyContent)
{
string target = helpRequest.Target;
string pattern = target;
Hashtable iteratorVariable2 = new Hashtable(StringComparer.OrdinalIgnoreCase);
if (!WildcardPattern.ContainsWildcardCharacters(target))
{
pattern = pattern + "*";
}
WildcardPattern iteratorVariable3 = new WildcardPattern(pattern, WildcardOptions.IgnoreCase);
IDictionary <string, AliasInfo> aliasTable = this._sessionState.Internal.GetAliasTable();
foreach (string iteratorVariable5 in aliasTable.Keys)
{
if (iteratorVariable3.IsMatch(iteratorVariable5))
{
HelpRequest iteratorVariable6 = helpRequest.Clone();
iteratorVariable6.Target = iteratorVariable5;
foreach (HelpInfo iteratorVariable7 in this.ExactMatchHelp(iteratorVariable6))
{
if (!Match(iteratorVariable7, helpRequest) || iteratorVariable2.ContainsKey(iteratorVariable5))
{
continue;
}
iteratorVariable2.Add(iteratorVariable5, null);
yield return(iteratorVariable7);
}
}
}
CommandSearcher iteratorVariable8 = new CommandSearcher(pattern, SearchResolutionOptions.ResolveAliasPatterns, CommandTypes.Alias, this._context);
while (iteratorVariable8.MoveNext())
{
CommandInfo current = iteratorVariable8.Current;
if (this._context.CurrentPipelineStopping)
{
goto Label_0423;
}
AliasInfo iteratorVariable10 = current as AliasInfo;
if (iteratorVariable10 != null)
{
string name = iteratorVariable10.Name;
HelpRequest iteratorVariable12 = helpRequest.Clone();
iteratorVariable12.Target = name;
foreach (HelpInfo iteratorVariable13 in this.ExactMatchHelp(iteratorVariable12))
{
if (!Match(iteratorVariable13, helpRequest) || iteratorVariable2.ContainsKey(name))
{
continue;
}
iteratorVariable2.Add(name, null);
yield return(iteratorVariable13);
}
}
}
foreach (CommandInfo iteratorVariable14 in ModuleUtils.GetMatchingCommands(pattern, this._context, helpRequest.CommandOrigin, false))
{
if (this._context.CurrentPipelineStopping)
{
break;
}
AliasInfo aliasInfo = iteratorVariable14 as AliasInfo;
if (aliasInfo != null)
{
string key = aliasInfo.Name;
HelpInfo helpInfo = AliasHelpInfo.GetHelpInfo(aliasInfo);
if (!iteratorVariable2.ContainsKey(key))
{
iteratorVariable2.Add(key, null);
yield return(helpInfo);
}
}
}
}
Label_0423:
yield break;
}
