/// <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);
}
}
}
}
// Visit one the other variations:
// - Dotting scripts
// - Setting aliases
// - Importing modules
// - Exporting module members
public override AstVisitAction VisitCommand(CommandAst commandAst)
{
string commandName =
commandAst.GetCommandName() ??
GetSafeValueVisitor.GetSafeValue(commandAst.CommandElements[0], null, GetSafeValueVisitor.SafeValueContext.ModuleAnalysis) as string;
if (commandName == null)
return AstVisitAction.SkipChildren;
// They are trying to dot a script
if (commandAst.InvocationOperator == TokenKind.Dot)
{
// . Foo-Bar4.ps1
// . $psScriptRoot\Foo-Bar.ps1 -Bing Baz
// . ""$psScriptRoot\Support Files\Foo-Bar2.ps1"" -Bing Baz
// . '$psScriptRoot\Support Files\Foo-Bar3.ps1' -Bing Baz
DiscoveredModules.Add(
new RequiredModuleInfo { Name = commandName, CommandsToPostFilter = new List<string>() });
ModuleIntrinsics.Tracer.WriteLine("Module dots {0}", commandName);
}
// They are setting an alias.
if (String.Equals(commandName, "New-Alias", StringComparison.OrdinalIgnoreCase) ||
String.Equals(commandName, "Microsoft.PowerShell.Utility\\New-Alias", StringComparison.OrdinalIgnoreCase) ||
String.Equals(commandName, "Set-Alias", StringComparison.OrdinalIgnoreCase) ||
String.Equals(commandName, "Microsoft.PowerShell.Utility\\Set-Alias", StringComparison.OrdinalIgnoreCase) ||
String.Equals(commandName, "nal", StringComparison.OrdinalIgnoreCase) ||
String.Equals(commandName, "sal", StringComparison.OrdinalIgnoreCase))
{
// Set-Alias Foo-Bar5 Foo-Bar
// Set-Alias -Name Foo-Bar6 -Value Foo-Bar
// sal Foo-Bar7 Foo-Bar
// sal -Value Foo-Bar -Name Foo-Bar8
var boundParameters = DoPsuedoParameterBinding(commandAst, commandName);
var name = boundParameters["Name"] as string;
if (!string.IsNullOrEmpty(name))
{
var value = boundParameters["Value"] as string;
if (!string.IsNullOrEmpty(value))
{
// These aren't stored in DiscoveredExports, as they are only
// exported after the user calls Export-ModuleMember.
DiscoveredAliases[name] = value;
ModuleIntrinsics.Tracer.WriteLine("Module defines alias: {0} = {1}", name, value);
}
}
return AstVisitAction.SkipChildren;
}
// They are importing a module
if (String.Equals(commandName, "Import-Module", StringComparison.OrdinalIgnoreCase) ||
String.Equals(commandName, "ipmo", StringComparison.OrdinalIgnoreCase))
{
// Import-Module Module1
// Import-Module Module2 -Function Foo-Module2*, Foo-Module2Second* -Cmdlet Foo-Module2Cmdlet,Foo-Module2Cmdlet*
// Import-Module Module3 -Function Foo-Module3Command1, Foo-Module3Command2
// Import-Module Module4,
// Module5
// Import-Module -Name Module6,
// Module7 -Global
var boundParameters = DoPsuedoParameterBinding(commandAst, commandName);
List<string> commandsToPostFilter = new List<string>();
Action<string> onEachCommand = importedCommandName =>
{
commandsToPostFilter.Add(importedCommandName);
};
// Process any exports from the module that we determine from
// the -Function, -Cmdlet, or -Alias parameters
ProcessCmdletArguments(boundParameters["Function"], onEachCommand);
ProcessCmdletArguments(boundParameters["Cmdlet"], onEachCommand);
ProcessCmdletArguments(boundParameters["Alias"], onEachCommand);
// Now, go through all of the discovered modules on Import-Module
// and register them for deeper investigation.
Action<string> onEachModule = moduleName =>
{
ModuleIntrinsics.Tracer.WriteLine("Discovered module import: {0}", moduleName);
DiscoveredModules.Add(
new RequiredModuleInfo
{
Name = moduleName,
CommandsToPostFilter = commandsToPostFilter
});
};
ProcessCmdletArguments(boundParameters["Name"], onEachModule);
return AstVisitAction.SkipChildren;
}
// They are exporting a module member
if (String.Equals(commandName, "Export-ModuleMember", StringComparison.OrdinalIgnoreCase) ||
String.Equals(commandName, "Microsoft.PowerShell.Core\\Export-ModuleMember", StringComparison.OrdinalIgnoreCase) ||
String.Equals(commandName, "$script:ExportModuleMember", StringComparison.OrdinalIgnoreCase))
{
// Export-ModuleMember *
// Export-ModuleMember Exported-UnNamedModuleMember
// Export-ModuleMember -Function Exported-FunctionModuleMember1, Exported-FunctionModuleMember2 -Cmdlet Exported-CmdletModuleMember `
// -Alias Exported-AliasModuleMember
// & $script:ExportModuleMember -Function (...)
var boundParameters = DoPsuedoParameterBinding(commandAst, commandName);
Action<string> onEachFunction = exportedCommandName =>
{
DiscoveredCommandFilters.Add(exportedCommandName);
ModuleIntrinsics.Tracer.WriteLine("Discovered explicit export: {0}", exportedCommandName);
// If the export doesn't contain wildcards, then add it to the
// discovered commands as well. It is likely that they created
// the command dynamically
if ((!WildcardPattern.ContainsWildcardCharacters(exportedCommandName)) &&
(!DiscoveredExports.Contains(exportedCommandName)))
{
DiscoveredExports.Add(exportedCommandName);
}
};
ProcessCmdletArguments(boundParameters["Function"], onEachFunction);
ProcessCmdletArguments(boundParameters["Cmdlet"], onEachFunction);
Action<string> onEachAlias = exportedAlias =>
{
DiscoveredCommandFilters.Add(exportedAlias);
// If the export doesn't contain wildcards, then add it to the
// discovered commands as well. It is likely that they created
// the command dynamically
if (!WildcardPattern.ContainsWildcardCharacters(exportedAlias))
{
DiscoveredAliases[exportedAlias] = null;
}
};
ProcessCmdletArguments(boundParameters["Alias"], onEachAlias);
return AstVisitAction.SkipChildren;
}
// They are exporting a module member using our advanced 'public' function
// that we've presented in many demos
if ((String.Equals(commandName, "public", StringComparison.OrdinalIgnoreCase)) &&
(commandAst.CommandElements.Count > 2))
{
// public function Publicly-ExportedFunction
// public alias Publicly-ExportedAlias
string publicCommandName = commandAst.CommandElements[2].ToString().Trim();
DiscoveredExports.Add(publicCommandName);
DiscoveredCommandFilters.Add(publicCommandName);
}
return AstVisitAction.SkipChildren;
}
internal override IEnumerable <HelpInfo> SearchHelp(HelpRequest helpRequest, bool searchOnlyContent)
{
string target = helpRequest.Target;
string pattern = target;
int countOfHelpInfoObjectsFound = 0;
// this will be used only when searchOnlyContent == true
WildcardPattern wildCardPattern = null;
if ((!searchOnlyContent) && (!WildcardPattern.ContainsWildcardCharacters(target)))
{
// Search all the about conceptual topics. This pattern
// makes about topics discoverable without actually
// using the word "about_" as in "get-help while".
pattern = "*" + pattern + "*";
}
if (searchOnlyContent)
{
string searchTarget = helpRequest.Target;
if (!WildcardPattern.ContainsWildcardCharacters(helpRequest.Target))
{
searchTarget = "*" + searchTarget + "*";
}
wildCardPattern = WildcardPattern.Get(searchTarget, WildcardOptions.Compiled | WildcardOptions.IgnoreCase);
// search all about_* topics
pattern = "*";
}
pattern += ".help.txt";
Collection <string> files = MUIFileSearcher.SearchFiles(pattern, GetExtendedSearchPaths());
var matchedFilesToRemove = FilterToLatestModuleVersion(files);
if (files == null)
{
yield break;
}
foreach (string file in files)
{
if (matchedFilesToRemove.Contains(file))
{
continue;
}
// Check whether the file is already loaded
if (!_helpFiles.ContainsKey(file))
{
try
{
LoadHelpFile(file);
}
catch (IOException ioException)
{
ReportHelpFileError(ioException, helpRequest.Target, file);
}
catch (System.Security.SecurityException securityException)
{
ReportHelpFileError(securityException, helpRequest.Target, file);
}
}
HelpFileHelpInfo helpInfo = GetCache(file) as HelpFileHelpInfo;
if (helpInfo != null)
{
if (searchOnlyContent)
{
if (!helpInfo.MatchPatternInContent(wildCardPattern))
{
continue;
}
}
countOfHelpInfoObjectsFound++;
yield return(helpInfo);
if (countOfHelpInfoObjectsFound >= helpRequest.MaxResults && helpRequest.MaxResults > 0)
{
yield break;
}
}
}
}
internal override IEnumerable <HelpInfo> SearchHelp(HelpRequest helpRequest, bool searchOnlyContent)
{
string item = helpRequest.Target;
Collection <string> iteratorVariable1 = new Collection <string>();
WildcardPattern pattern = null;
bool iteratorVariable3 = !WildcardPattern.ContainsWildcardCharacters(helpRequest.Target);
if (!searchOnlyContent)
{
if (iteratorVariable3)
{
if (item.IndexOf('-') >= 0)
{
iteratorVariable1.Add(item + "*");
}
else
{
iteratorVariable1.Add("*" + item + "*");
}
}
else
{
iteratorVariable1.Add(item);
}
}
else
{
iteratorVariable1.Add("*");
string target = helpRequest.Target;
if (iteratorVariable3)
{
target = "*" + helpRequest.Target + "*";
}
pattern = new WildcardPattern(target, WildcardOptions.IgnoreCase | WildcardOptions.Compiled);
}
int iteratorVariable4 = 0;
Hashtable iteratorVariable5 = new Hashtable(StringComparer.OrdinalIgnoreCase);
Hashtable iteratorVariable6 = new Hashtable(StringComparer.OrdinalIgnoreCase);
foreach (string iteratorVariable7 in iteratorVariable1)
{
CommandSearcher commandSearcherForSearch = this.GetCommandSearcherForSearch(iteratorVariable7, this._context);
while (commandSearcherForSearch.MoveNext())
{
if (this._context.CurrentPipelineStopping)
{
break;
}
CommandInfo current = commandSearcherForSearch.Current;
CmdletInfo cmdletInfo = current as CmdletInfo;
HelpInfo helpInfo = null;
string key = null;
if (cmdletInfo != null)
{
helpInfo = this.GetHelpInfo(cmdletInfo, !iteratorVariable3);
key = cmdletInfo.FullName;
}
else
{
IScriptCommandInfo scriptCommandInfo = current as IScriptCommandInfo;
if (scriptCommandInfo != null)
{
key = current.Name;
helpInfo = this.GetHelpInfo(scriptCommandInfo, !iteratorVariable3, searchOnlyContent);
}
}
if (helpInfo != null)
{
if (!SessionState.IsVisible(helpRequest.CommandOrigin, current))
{
if (!iteratorVariable6.ContainsKey(key))
{
iteratorVariable6.Add(key, null);
}
}
else if ((!iteratorVariable5.ContainsKey(key) && Match(helpInfo, helpRequest, current)) && (!searchOnlyContent || helpInfo.MatchPatternInContent(pattern)))
{
iteratorVariable5.Add(key, null);
iteratorVariable4++;
yield return(helpInfo);
if ((iteratorVariable4 < helpRequest.MaxResults) || (helpRequest.MaxResults <= 0))
{
continue;
}
break;
}
}
}
if (this.HelpCategory == (System.Management.Automation.HelpCategory.Cmdlet | System.Management.Automation.HelpCategory.Alias))
{
foreach (CommandInfo iteratorVariable13 in ModuleUtils.GetMatchingCommands(iteratorVariable7, this._context, helpRequest.CommandOrigin, false))
{
if (this._context.CurrentPipelineStopping)
{
break;
}
if (SessionState.IsVisible(helpRequest.CommandOrigin, iteratorVariable13))
{
CmdletInfo iteratorVariable14 = iteratorVariable13 as CmdletInfo;
HelpInfo iteratorVariable15 = null;
string fullName = null;
if (iteratorVariable14 != null)
{
iteratorVariable15 = this.GetHelpInfo(iteratorVariable14, !iteratorVariable3);
fullName = iteratorVariable14.FullName;
}
else
{
IScriptCommandInfo info2 = iteratorVariable13 as IScriptCommandInfo;
if (info2 != null)
{
fullName = iteratorVariable13.Name;
iteratorVariable15 = this.GetHelpInfo(info2, !iteratorVariable3, searchOnlyContent);
}
}
if ((((iteratorVariable15 != null) && !iteratorVariable5.ContainsKey(fullName)) && (!iteratorVariable6.ContainsKey(fullName) && Match(iteratorVariable15, helpRequest, iteratorVariable13))) && (!searchOnlyContent || iteratorVariable15.MatchPatternInContent(pattern)))
{
iteratorVariable5.Add(fullName, null);
iteratorVariable4++;
yield return(iteratorVariable15);
if ((iteratorVariable4 >= helpRequest.MaxResults) && (helpRequest.MaxResults > 0))
{
break;
}
}
}
}
}
}
}
/// <summary>
/// Search for provider help based on a search target.
/// </summary>
/// <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></returns>
internal override IEnumerable <HelpInfo> SearchHelp(HelpRequest helpRequest, bool searchOnlyContent)
{
int countOfHelpInfoObjectsFound = 0;
string target = helpRequest.Target;
string pattern = target;
// this will be used only when searchOnlyContent == true
WildcardPattern wildCardPattern = null;
bool decoratedSearch = !WildcardPattern.ContainsWildcardCharacters(target);
if (!searchOnlyContent)
{
if (decoratedSearch)
{
pattern += "*";
}
}
else
{
string searchTarget = helpRequest.Target;
if (decoratedSearch)
{
searchTarget = "*" + helpRequest.Target + "*";
}
wildCardPattern = WildcardPattern.Get(searchTarget, WildcardOptions.Compiled | WildcardOptions.IgnoreCase);
// search in all providers
pattern = "*";
}
PSSnapinQualifiedName snapinQualifiedNameForPattern =
PSSnapinQualifiedName.GetInstance(pattern);
if (null == snapinQualifiedNameForPattern)
{
yield break;
}
foreach (ProviderInfo providerInfo in _sessionState.Provider.GetAll())
{
if (providerInfo.IsMatch(pattern))
{
try
{
LoadHelpFile(providerInfo);
}
catch (IOException ioException)
{
if (!decoratedSearch)
{
ReportHelpFileError(ioException, providerInfo.Name, providerInfo.HelpFile);
}
}
catch (System.Security.SecurityException securityException)
{
if (!decoratedSearch)
{
ReportHelpFileError(securityException, providerInfo.Name, providerInfo.HelpFile);
}
}
catch (XmlException xmlException)
{
if (!decoratedSearch)
{
ReportHelpFileError(xmlException, providerInfo.Name, providerInfo.HelpFile);
}
}
HelpInfo helpInfo = GetCache(providerInfo.PSSnapInName + "\\" + providerInfo.Name);
if (helpInfo != null)
{
if (searchOnlyContent)
{
// ignore help objects that do not have pattern in its help
// content.
if (!helpInfo.MatchPatternInContent(wildCardPattern))
{
continue;
}
}
countOfHelpInfoObjectsFound++;
yield return(helpInfo);
if (countOfHelpInfoObjectsFound >= helpRequest.MaxResults && helpRequest.MaxResults > 0)
{
yield break;
}
}
}
}
}
/// <summary>
/// On Windows, just append <paramref name="arg"/>.
/// On Unix, do globbing as appropriate, otherwise just append <paramref name="arg"/>.
/// </summary>
/// <param name="arg">The argument that possibly needs expansion.</param>
/// <param name="usedQuotes">True if the argument was a quoted string (single or double).</param>
private void PossiblyGlobArg(string arg, bool usedQuotes)
{
var argExpanded = false;
#if UNIX
// On UNIX systems, we expand arguments containing wildcard expressions against
// the file system just like bash, etc.
if (!usedQuotes && WildcardPattern.ContainsWildcardCharacters(arg))
{
// See if the current working directory is a filesystem provider location
// We won't do the expansion if it isn't since native commands can only access the file system.
var cwdinfo = Context.EngineSessionState.CurrentLocation;
// If it's a filesystem location then expand the wildcards
if (cwdinfo.Provider.Name.Equals(FileSystemProvider.ProviderName, StringComparison.OrdinalIgnoreCase))
{
// On UNIX, paths starting with ~ or absolute paths are not normalized
bool normalizePath = arg.Length == 0 || !(arg[0] == '~' || arg[0] == '/');
// See if there are any matching paths otherwise just add the pattern as the argument
Collection <PSObject> paths = null;
try
{
paths = Context.EngineSessionState.InvokeProvider.ChildItem.Get(arg, false);
}
catch
{
// Fallthrough will append the pattern unchanged.
}
// Expand paths, but only from the file system.
if (paths?.Count > 0 && paths.All(p => p.BaseObject is FileSystemInfo))
{
var sep = string.Empty;
foreach (var path in paths)
{
_arguments.Append(sep);
sep = " ";
var expandedPath = (path.BaseObject as FileSystemInfo).FullName;
if (normalizePath)
{
expandedPath =
Context.SessionState.Path.NormalizeRelativePath(expandedPath, cwdinfo.ProviderPath);
}
// If the path contains spaces, then add quotes around it.
if (NeedQuotes(expandedPath))
{
_arguments.Append("\"");
_arguments.Append(expandedPath);
_arguments.Append("\"");
}
else
{
_arguments.Append(expandedPath);
}
argExpanded = true;
}
}
}
}
else if (!usedQuotes)
{
// Even if there are no wildcards, we still need to possibly
// expand ~ into the filesystem provider home directory path
ProviderInfo fileSystemProvider = Context.EngineSessionState.GetSingleProvider(FileSystemProvider.ProviderName);
string home = fileSystemProvider.Home;
if (string.Equals(arg, "~"))
{
_arguments.Append(home);
argExpanded = true;
}
else if (arg.StartsWith("~/", StringComparison.OrdinalIgnoreCase))
{
var replacementString = home + arg.Substring(1);
_arguments.Append(replacementString);
argExpanded = true;
}
}
#endif // UNIX
if (!argExpanded)
{
_arguments.Append(arg);
}
}
/// <summary>
/// Resets the current working drive and directory to the first
/// entry on the working directory stack and removes that entry
/// from the stack.
/// </summary>
/// <param name="stackName">
/// The ID of the stack to pop the location from. If it is null or
/// empty the default stack is used.
/// </param>
/// <returns>
/// A PathInfo object representing the location that was popped
/// from the location stack and set as the new location.
/// </returns>
/// <exception cref="ArgumentException">
/// If the path on the stack does not exist, is not a container, or
/// resolved to multiple containers.
/// or
/// If <paramref name="stackName"/> contains wildcard characters and resolves
/// to multiple location stacks.
/// or
/// A stack was not found with the specified name.
/// </exception>
/// <exception cref="ProviderNotFoundException">
/// If the path on the stack refers to a provider that does not exist.
/// </exception>
/// <exception cref="DriveNotFoundException">
/// If the path on the stack refers to a drive that does not exist.
/// </exception>
/// <exception cref="ProviderInvocationException">
/// If the provider associated with the path on the stack threw an
/// exception.
/// </exception>
internal PathInfo PopLocation(string stackName)
{
if (string.IsNullOrEmpty(stackName))
{
stackName = _defaultStackName;
}
if (WildcardPattern.ContainsWildcardCharacters(stackName))
{
// Need to glob the stack name, but it can only glob to a single.
bool haveMatch = false;
WildcardPattern stackNamePattern =
WildcardPattern.Get(stackName, WildcardOptions.IgnoreCase);
foreach (string key in _workingLocationStack.Keys)
{
if (stackNamePattern.IsMatch(key))
{
if (haveMatch)
{
throw
PSTraceSource.NewArgumentException(
"stackName",
SessionStateStrings.StackNameResolvedToMultiple,
stackName);
}
haveMatch = true;
stackName = key;
}
}
}
PathInfo result = CurrentLocation;
try
{
Stack <PathInfo> locationStack = null;
if (!_workingLocationStack.TryGetValue(stackName, out locationStack))
{
if (!string.Equals(stackName, startingDefaultStackName, StringComparison.OrdinalIgnoreCase))
{
throw
PSTraceSource.NewArgumentException(
"stackName",
SessionStateStrings.StackNotFound,
stackName);
}
return(null);
}
PathInfo poppedWorkingDirectory = locationStack.Pop();
Dbg.Diagnostics.Assert(
poppedWorkingDirectory != null,
"All items in the workingLocationStack should be " +
"of type PathInfo");
string newPath =
LocationGlobber.GetMshQualifiedPath(
WildcardPattern.Escape(poppedWorkingDirectory.Path),
poppedWorkingDirectory.GetDrive());
result = SetLocation(newPath);
if (locationStack.Count == 0 &&
!string.Equals(stackName, startingDefaultStackName, StringComparison.OrdinalIgnoreCase))
{
// Remove the stack from the stack list if it
// no longer contains any paths.
_workingLocationStack.Remove(stackName);
}
}
catch (InvalidOperationException)
{
// This is a no-op. We stay with the current working
// directory.
}
return(result);
}
internal override IEnumerable <HelpInfo> SearchHelp(
HelpRequest helpRequest,
bool searchOnlyContent)
{
using (HelpFileHelpProvider.tracer.TraceMethod())
{
string target = helpRequest.Target;
string pattern = target;
int countOfHelpInfoObjectsFound = 0;
WildcardPattern wildCardPattern = (WildcardPattern)null;
if (!searchOnlyContent && !WildcardPattern.ContainsWildcardCharacters(target))
{
pattern = "*" + pattern + "*";
}
if (searchOnlyContent)
{
string pattern1 = helpRequest.Target;
if (!WildcardPattern.ContainsWildcardCharacters(helpRequest.Target))
{
pattern1 = "*" + pattern1 + "*";
}
wildCardPattern = new WildcardPattern(pattern1, WildcardOptions.Compiled | WildcardOptions.IgnoreCase);
pattern = "*";
}
// ISSUE: reference to a compiler-generated field
this.\u003Cpattern\u003E5__e += ".help.txt";
Collection <string> files = MUIFileSearcher.SearchFiles(pattern, this.GetSearchPaths());
if (files != null)
{
foreach (string str in files)
{
if (!this._helpFiles.ContainsKey((object)str))
{
try
{
this.LoadHelpFile(str);
}
catch (IOException ex)
{
this.ReportHelpFileError((Exception)ex, helpRequest.Target, str);
}
catch (SecurityException ex)
{
this.ReportHelpFileError((Exception)ex, helpRequest.Target, str);
}
}
HelpFileHelpInfo helpInfo = this.GetCache(str) as HelpFileHelpInfo;
if (helpInfo != null && (!searchOnlyContent || helpInfo.MatchPatternInContent(wildCardPattern)))
{
++countOfHelpInfoObjectsFound;
yield return((HelpInfo)helpInfo);
if (countOfHelpInfoObjectsFound >= helpRequest.MaxResults && helpRequest.MaxResults > 0)
{
break;
}
}
}
}
}
}
public override AstVisitAction VisitCommand(CommandAst commandAst)
{
string commandName = commandAst.GetCommandName();
if (string.IsNullOrEmpty(commandName))
{
commandName = commandAst.CommandElements[0].ToString().Trim(new char[] { '"', '\'' });
}
if (commandAst.InvocationOperator == TokenKind.Dot)
{
commandName = Regex.Replace(commandName, @"\$[^\\]*\\", "", RegexOptions.IgnoreCase);
RequiredModuleInfo item = new RequiredModuleInfo {
Name = commandName,
CommandsToPostFilter = new List <string>()
};
this.DiscoveredModules.Add(item);
ModuleIntrinsics.Tracer.WriteLine("Module dots " + commandName, new object[0]);
}
if (((string.Equals(commandName, "New-Alias", StringComparison.OrdinalIgnoreCase) || string.Equals(commandName, @"Microsoft.PowerShell.Utility\New-Alias", StringComparison.OrdinalIgnoreCase)) || (string.Equals(commandName, "Set-Alias", StringComparison.OrdinalIgnoreCase) || string.Equals(commandName, @"Microsoft.PowerShell.Utility\Set-Alias", StringComparison.OrdinalIgnoreCase))) || (string.Equals(commandName, "nal", StringComparison.OrdinalIgnoreCase) || string.Equals(commandName, "sal", StringComparison.OrdinalIgnoreCase)))
{
string str2 = this.GetParameterByNameOrPosition("Name", 0, commandAst);
string str3 = this.GetParameterByNameOrPosition("Value", 1, commandAst);
if (!string.IsNullOrEmpty(str2))
{
this.DiscoveredAliases[str2] = str3;
ModuleIntrinsics.Tracer.WriteLine("Module defines alias: " + str2 + "=" + str3, new object[0]);
}
}
if (string.Equals(commandName, "Import-Module", StringComparison.OrdinalIgnoreCase) || string.Equals(commandName, "ipmo", StringComparison.OrdinalIgnoreCase))
{
List <string> list = new List <string>();
string str4 = this.GetParameterByNameOrPosition("Function", -1, commandAst);
if (!string.IsNullOrEmpty(str4))
{
list.AddRange(this.ProcessExportedCommandList(str4));
}
string str5 = this.GetParameterByNameOrPosition("Cmdlet", -1, commandAst);
if (!string.IsNullOrEmpty(str5))
{
list.AddRange(this.ProcessExportedCommandList(str5));
}
string str6 = this.GetParameterByNameOrPosition("Alias", -1, commandAst);
if (!string.IsNullOrEmpty(str6))
{
list.AddRange(this.ProcessExportedCommandList(str6));
}
string str7 = this.GetParameterByNameOrPosition("Name", 0, commandAst);
if (!string.IsNullOrEmpty(str7))
{
foreach (string str8 in str7.Split(new char[] { ',' }))
{
ModuleIntrinsics.Tracer.WriteLine("Discovered module import: " + str8, new object[0]);
RequiredModuleInfo info2 = new RequiredModuleInfo {
Name = str8.Trim(),
CommandsToPostFilter = list
};
this.DiscoveredModules.Add(info2);
}
}
}
if ((string.Equals(commandName, "Export-ModuleMember", StringComparison.OrdinalIgnoreCase) || string.Equals(commandName, @"Microsoft.PowerShell.Core\Export-ModuleMember", StringComparison.OrdinalIgnoreCase)) || string.Equals(commandName, "$script:ExportModuleMember", StringComparison.OrdinalIgnoreCase))
{
List <string> list2 = new List <string>();
string arguments = this.GetParameterByNameOrPosition("Function", 0, commandAst);
list2.AddRange(this.ExtractArgumentList(arguments));
string str10 = this.GetParameterByNameOrPosition("Cmdlet", -1, commandAst);
list2.AddRange(this.ExtractArgumentList(str10));
foreach (string str11 in list2)
{
this.DiscoveredCommandFilters.Add(str11);
ModuleIntrinsics.Tracer.WriteLine("Discovered explicit export: " + str11, new object[0]);
if (!WildcardPattern.ContainsWildcardCharacters(str11) && !this.DiscoveredExports.Contains(str11))
{
this.DiscoveredExports.Add(str11);
}
}
list2 = new List <string>();
string str12 = this.GetParameterByNameOrPosition("Alias", -1, commandAst);
list2.AddRange(this.ExtractArgumentList(str12));
foreach (string str13 in list2)
{
this.DiscoveredCommandFilters.Add(str13);
if (!WildcardPattern.ContainsWildcardCharacters(str13) && !this.DiscoveredAliases.ContainsKey(str13))
{
this.DiscoveredAliases.Add(str13, null);
}
}
}
if (string.Equals(commandName, "public", StringComparison.OrdinalIgnoreCase) && (commandAst.CommandElements.Count > 2))
{
string str14 = commandAst.CommandElements[2].ToString().Trim();
this.DiscoveredExports.Add(str14);
this.DiscoveredCommandFilters.Add(str14);
}
return(AstVisitAction.Continue);
}
internal override IEnumerable <HelpInfo> SearchHelp(HelpRequest helpRequest, bool searchOnlyContent)
{
int iteratorVariable0 = 0;
string pattern = helpRequest.Target;
string name = pattern;
WildcardPattern iteratorVariable3 = null;
bool iteratorVariable4 = !WildcardPattern.ContainsWildcardCharacters(pattern);
if (!searchOnlyContent)
{
if (iteratorVariable4)
{
name = name + "*";
}
}
else
{
string target = helpRequest.Target;
if (iteratorVariable4)
{
target = "*" + helpRequest.Target + "*";
}
iteratorVariable3 = new WildcardPattern(target, WildcardOptions.IgnoreCase | WildcardOptions.Compiled);
name = "*";
}
PSSnapinQualifiedName instance = PSSnapinQualifiedName.GetInstance(name);
if (instance != null)
{
foreach (ProviderInfo iteratorVariable6 in this._sessionState.Provider.GetAll())
{
if (!iteratorVariable6.IsMatch(name))
{
continue;
}
try
{
this.LoadHelpFile(iteratorVariable6);
}
catch (IOException exception)
{
if (!iteratorVariable4)
{
this.ReportHelpFileError(exception, iteratorVariable6.Name, iteratorVariable6.HelpFile);
}
}
catch (SecurityException exception2)
{
if (!iteratorVariable4)
{
this.ReportHelpFileError(exception2, iteratorVariable6.Name, iteratorVariable6.HelpFile);
}
}
catch (XmlException exception3)
{
if (!iteratorVariable4)
{
this.ReportHelpFileError(exception3, iteratorVariable6.Name, iteratorVariable6.HelpFile);
}
}
HelpInfo cache = this.GetCache(iteratorVariable6.PSSnapInName + @"\" + iteratorVariable6.Name);
if ((cache != null) && (!searchOnlyContent || cache.MatchPatternInContent(iteratorVariable3)))
{
iteratorVariable0++;
yield return(cache);
if ((iteratorVariable0 >= helpRequest.MaxResults) && (helpRequest.MaxResults > 0))
{
break;
}
}
}
}
}
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;
}