{
  matortheeternal's Functions
  edited 11/24/2019
  
  A set of useful functions for use in TES5Edit scripts.
  
  **LIST OF INCLUDED FUNCTIONS**
  - [GetVersionString]: gets TES5Edit's version as a string.
  - [ColorToInt]: gets an integer value representing a color from a TColor record.
  - [ElementTypeString]: uses ElementType and outputs a string.
  - [DefTypeString]: uses DefType and outputs a string.
  - [ConflictThisString]: uses ConflictThisForNode or ConflictThisForMainRecord 
    and outputs a string.
  - [ConflictAllString]: uses ConflictAllForNode or ConflictAllForMainRecord 
    and outputs a string.
  - [FreeAndNil]: frees and nils an object reference.
  - [IsDirectoryEmpty]: returns true if a directory is empty.  False otherwise.
  - [Matches]: returns true or false on whether or not an input string matches a
    basic regular expression (e.g. *.esp)
  - [wCopyFile]: copies a file using ShellExecute with cmd.  Would be superior to
    CopyFile if it was synchronous, but it isn't yet.
  - [CopyDirectory]: recursively copies the contents of a directory to a new destination
    path.
  - [BatchCopyDirectory]: batch variant of CopyDirectory.
  - [DeleteDirectory]: deletes the contents of a directory, and optionally the directory
    itself.
  - [RecursiveFileSearch]: recursively searches for a file in all the folders at a path.
    Returns the path of the first file matching the given filename, if it is found.
  - [SanitizeFileName]: removes characters not allowed in filenames from a string.
  - [BoolToStr]: converts a boolean value to a string.
  - [TimeStr]: returns a time string from a TDateTime.
  - [FileDateTimeStr]: returns a filename-safe DateTime string from a TDateTime.
  - [ReverseString]: reverses a string.
  - [StrEndsWith]: checks if a string ends with a substring.
  - [RemoveFromEnd]: removes a substring from the end of a string, if found.
  - [AppendIfMissing]: appends a substring to the end of a string, if it's not already 
    there.
  - [ItPos]: finds the position of an iteration of a substring in a string.
  - [rPos]: finds the last position of a substring in a string by starting at the end of 
    the string and moving to the front.
  - [CopyFromTo]: copies all characters in a string from a starting position to an 
    ending position.
  - [SetChar]: Sets a character in a string to a different character and returns the
    resulting string.
  - [GetChar]: Gets a character in a string and returns it.
  - [DelimitedTextBetween]: Gets the delimited text of a stringlist between two indexes,
    including the entries at those indices.
  - [GetTextIn]: Gets a substring from a string between two characters.
  - [RecordByHexFormID]: Gets a record by a hexadecimal FormID string.
  - [GetAuthor]: Gets the author of a file.
  - [SetAuthor]: Sets the author of a file.
  - [FileByName]: gets a file from a filename.
  - [FileByAuthor]: gets a file from an author.
  - [OverrideByFile]: gets the override for a particular record in a particular file,
    if it exists.
  - [OverrideRecordCount]: gets the number of override records in a file or record group.
  - [GetRecords]: adds the records in a file or group to a stringlist.
  - [GroupSignature]: gets the signature of a group record.
  - [HexFormID]: gets the FormID of a record as a hexadecimal string.
  - [FileFormID]: gets the FileFormID of a record as a cardinal.
  - [IsLocalRecord]: returns false for override and injected records.
  - [IsOverrideRecord]: returns true for override records.
  - [SmallName]: gets the FormID and editor ID as a string.
  - [ElementByIP]: Depreciated.
  - [ElementsByMIP]: provides an array of elements matching an indexed path (with [*] meaning
    any index).
  - [IndexedPath]: gets the indexed path of an element.
  - [ElementPath]: gets the path of an element that can then be used in ElementByPath.
  - [SetListEditValues]: sets the edit values in a list of elements to the values 
    stored in a stringlist.
  - [SetListNativeValues]: sets the native values in a list of elements to the values
    stored in a TList.
  - [ebn]: ElementByName shortened function name.
  - [ebp]: ElementByPath shortened function name.
  - [ebi]: ElementByIndex shortened function name.
  - [ebip]: ElementByPath shortened function name.
  - [mgeev]: Produces a stringlist of element edit values from a list of elements.  Use with
    ElementsByMIP.
  - [geev]: GetElementEditValues enhanced with ElementByPath.
  - [genv]: GetElementNativeValues enhanced with ElementByPath.
  - [seev]: SetElementEditValues enhanced with ElementByPath.
  - [senv]: SetElementNativeValues enhanced with ElementByPath.
  - [slev]: SetListEditValues shortened function name.
  - [slnv]: SetListNativeValues shortened function name.
  - [gav]: GetAllValues returns a string of all of the values in an element.
  - [IsD]: GetIsDeleted shortened function name.
  - [IsID]: GetIsInitiallyDisabled shortened function name.
  - [IsP]: GetIsPersistent shortened function name.
  - [IsVWD]: GetIsVisibleWhenDistant shortened function name.
  - [SetD]: SetIsDeleted shortened function name.
  - [SetID]: SetIsInitiallyDisabled shortened function name.
  - [SetP]: SetIsPersistent shortened function name.
  - [SetVWD]: SetIsVisibleWhenDistant shortened function name.
  - [HasKeyword]: checks if a record has a keyword matching the input EditorID.
  - [HasItem]: checks if a record has an item matching the input EditorID.
  - [HasPerkCondition]: checks if a record has a perk condition for a perk matching the
    input EditorID.
  - [ExtractBSA]: extracts the contents of a BSA to the specified path.
  - [ExtractPathBSA]: extracts the contents of a BSA from a specified subpath to the 
    specified path.
  - [PrintBSAContents]: prints the contents of a BSA to xEdit's message log.
  - [AddMastersToList]: adds masters from the specified file (and the file itself) to 
    the specified stringlist.
  - [AddMastersToFile]: adds masters to the specified file from the specified stringlist.
    Will re-add masters if they were already added by AddMasterIfMissing and later
    removed.
  - [RemoveMaster]: removes a master of the specified name from the specified file.
    NOTE: This function can be dangerous if used improperly.
  - [FileSelect]: creates a window from which the user can select or create a file.
    Doesn't include bethesda master files.  Outputs selected file as IInterface.
  - [MultiFileSelect]: allows the user to select multiple files, returning them through
    a TStringList.
  - [RecordSelect]: creates a window from which the user can choose a record.
  - [EditOutOfDate]: alerts the user that their xEdit is out of date, and provides them
    with a button they can click to go to the AFKMods page to download an updated version.
  - [BoolToChecked]: converts a boolean to a TCheckBoxState value.
  - [CheckedToBool]: converts TCheckBoxState value to boolean.
  - [ConstructGroup]: an all-in-one group box constructor.
  - [ConstructImage]: an all-in-one image constructor.
  - [ConstructRadioGroup]: an all-in-one radiogroup constructor.
  - [ConstructRadioButton]: an all-in-one radiobutton constructor.
  - [ConstructMemo]: an all-in-one memo constructor.
  - [ConstructScrollBox]: an all-in-one scrollbox constructor.
  - [ConstructCheckBox]: an all-in-one checkbox constructor.
  - [ConstructLabel]: an all-in-one label constructor.
  - [ConstructEdit]: an all-in-one edit constructor.
  - [ConstructButton]: an all-in-one button constructor.
  - [ConstructLabelEditPair]: constructs a TLabel and TEdit side-by-side.
  - [ConstructModalButtons]: a procedure to make the standard OK and Cancel buttons on 
    a form.
  - [cGroup]: ConstructGroup shortened function name.
  - [cImage]: ConstructImage shortened function name.
  - [cRadioGroup]: ConstructRadioGroup shortened function name.
  - [cRadioButton]: ConstructRadioButton shortened function name.
  - [cMemo]: ConstructMemo shortened function name.
  - [cScrollBox]: ConstructScrollBox shortened function name.
  - [cCheckBox]: ConstructCheckBox shortened function name.
  - [cLabel]: ConstructLabel shortened function name.
  - [cEdit]: ConstructEdit shortened function name.
  - [cButton]: ConstructButton shortened function name.
  - [cPair]: ConstructLabelEditPair shortened function name.
  - [cModal]: ConstructModalButtons shortened function name.
}

unit mteFunctions;

const
  bethesdaFiles = 'Skyrim.esm'#13'Update.esm'#13'Dawnguard.esm'#13'HearthFires.esm'#13
  'Dragonborn.esm'#13'Fallout3.esm'#13'FalloutNV.esm'#13'Oblivion.esm'#13
  'Skyrim.Hardcoded.keep.this.with.the.exe.and.otherwise.ignore.it.I.really.mean.it.dat'#13
  'Fallout3.Hardcoded.keep.this.with.the.exe.and.otherwise.ignore.it.I.really.mean.it.dat'#13
  'Oblivion.Hardcoded.keep.this.with.the.exe.and.otherwise.ignore.it.I.really.mean.it.dat'#13
  'FalloutNV.Hardcoded.keep.this.with.the.exe.and.otherwise.ignore.it.I.really.mean.it.dat';
  GamePath = DataPath + '..\';

type
  TColor = Record
    red, green, blue: integer;
  end;

var
  sFiles, sGroups, sRecords: string;

{
  GetVersionString:
  Gets TES5Edit's version as a string.
  
  Will throw an exception on versions < 3.0.31, so surround in a
  try..except block if you want your script to terminate gracefully
  on old versions.
  
  Example usage:
  s := GetVersionString(wbVersionNumber);
  AddMessage(s); // xEdit version *.*.*
}
function GetVersionString(v: integer): string;
begin
  Result := Format('%sEdit version %d.%d.%d', [
    wbAppName,
    v shr 24,
    v shr 16 and $FF,
    v shr 8 and $FF
  ]);
end;

{
  ColorToInt:
  Gets an integer value representing a color from a TColor record.
  
  Example usage:
  color.Red := $FF;
  color.Green := $FF;
  color.Blue := $FF;
  c := ColorToInt(color.Red, color.Green, color.Blue);
}
function ColorToInt(red: integer; green: integer; blue: integer): integer;
begin
  Result := blue * 65536 + green * 256 + red;
end;

{
  ElementTypeString:
  Uses ElementType and outputs a string.
  
  Example usage:
  element := ElementByPath(e, 'KWDA');
  AddMessage(ElementTypeString(element));
}
function ElementTypeString(e: IInterface): string;
begin
  Result := '';
  if ElementType(e) = etFile then
    Result := 'etFile'
  else if ElementType(e) = etMainRecord then
    Result := 'etMainRecord'
  else if ElementType(e) = etGroupRecord then
    Result := 'etGroupRecord'
  else if ElementType(e) = etSubRecord then
    Result := 'etSubRecord'
  else if ElementType(e) = etSubRecordStruct then
    Result := 'etSubRecordStruct'
  else if ElementType(e) = etSubRecordArray then
    Result := 'etSubRecordArray'
  else if ElementType(e) = etSubRecordUnion then
    Result := 'etSubRecordUnion'
  else if ElementType(e) = etArray then
    Result := 'etArray'
  else if ElementType(e) = etStruct then
    Result := 'etStruct'
  else if ElementType(e) = etValue then
    Result := 'etValue'
  else if ElementType(e) = etFlag then
    Result := 'etFlag'
  else if ElementType(e) = etStringListTerminator then
    Result := 'etStringListTerminator'
  else if ElementType(e) = etUnion then
    Result := 'etUnion';
end;

{
  DefTypeString:
  Uses DefType and outputs a string.
  
  Example usage:
  element := ElementByPath(e, 'KWDA');
  AddMessage(DefTypeString(element));
}
function DefTypeString(e: IInterface): string;
begin
  Result := '';
  if DefType(e) = dtRecord then
    Result := 'dtRecord'
  else if DefType(e) = dtSubRecord then
    Result := 'dtSubRecord'
  else if DefType(e) = dtSubRecordArray then
    Result := 'dtSubRecordArray'
  else if DefType(e) = dtSubRecordStruct then
    Result := 'dtSubRecordStruct'
  else if DefType(e) = dtSubRecordUnion then
    Result := 'dtSubRecordUnion'
  else if DefType(e) = dtString then
    Result := 'dtString'
  else if DefType(e) = dtLString then
    Result := 'dtLString'
  else if DefType(e) = dtLenString then
    Result := 'dtLenString'
  else if DefType(e) = dtByteArray then
    Result := 'dtByteArray'
  else if DefType(e) = dtInteger then
    Result := 'dtInteger'
  else if DefType(e) = dtIntegerFormater then
    Result := 'dtIntegerFormatter'
  else if DefType(e) = dtFloat then
    Result := 'dtFloat'
  else if DefType(e) = dtArray then
    Result := 'dtArray'
  else if DefType(e) = dtStruct then
    Result := 'dtStruct'
  else if DefType(e) = dtUnion then
    Result := 'dtUnion'
  else if DefType(e) = dtEmpty then
    Result := 'dtEmpty';
end;

{
  ConflictThisString:
  Uses ConflictThisForNode or ConflictThisForMainRecord and outputs a string.
  
  Example usage:
  e := RecordByIndex(FileByIndex(0), 1);
  AddMessage(ConflictThisString(e));
}
function ConflictThisString(e: IInterface): string;
begin
  Result := '';
  if ElementType(e) = etMainRecord then begin
    if ConflictThisForMainRecord(e) = ctUnknown then 
      Result := 'ctUnknown'
    else if ConflictThisForMainRecord(e) = ctIgnored then 
      Result := 'ctIgnored'
    else if ConflictThisForMainRecord(e) = ctNotDefined then 
      Result := 'ctNotDefined'
    else if ConflictThisForMainRecord(e) = ctIdenticalToMaster then 
      Result := 'ctIdenticalToMaster'
    else if ConflictThisForMainRecord(e) = ctOnlyOne then 
      Result := 'ctOnlyOne'
    else if ConflictThisForMainRecord(e) = ctHiddenByModGroup then 
      Result := 'ctHiddenByModGroup'
    else if ConflictThisForMainRecord(e) = ctMaster then 
      Result := 'ctMaster'
    else if ConflictThisForMainRecord(e) = ctConflictBenign then 
      Result := 'ctConflictBenign'
    else if ConflictThisForMainRecord(e) = ctOverride then 
      Result := 'ctOverride'
    else if ConflictThisForMainRecord(e) = ctIdenticalToMasterWinsConflict then 
      Result := 'ctIdenticalToMasterWinsConflict'
    else if ConflictThisForMainRecord(e) = ctConflictWins then 
      Result := 'ctConflictWins'
    else if ConflictThisForMainRecord(e) = ctConflictLoses then 
      Result := 'ctConflictLoses';
  end
  else begin
    if ConflictThisForNode(e) = ctUnknown then 
      Result := 'ctUnknown'
    else if ConflictThisForNode(e) = ctIgnored then 
      Result := 'ctIgnored'
    else if ConflictThisForNode(e) = ctNotDefined then 
      Result := 'ctNotDefined'
    else if ConflictThisForNode(e) = ctIdenticalToMaster then 
      Result := 'ctIdenticalToMaster'
    else if ConflictThisForNode(e) = ctOnlyOne then 
      Result := 'ctOnlyOne'
    else if ConflictThisForNode(e) = ctHiddenByModGroup then 
      Result := 'ctHiddenByModGroup'
    else if ConflictThisForNode(e) = ctMaster then 
      Result := 'ctMaster'
    else if ConflictThisForNode(e) = ctConflictBenign then 
      Result := 'ctConflictBenign'
    else if ConflictThisForNode(e) = ctOverride then 
      Result := 'ctOverride'
    else if ConflictThisForNode(e) = ctIdenticalToMasterWinsConflict then 
      Result := 'ctIdenticalToMasterWinsConflict'
    else if ConflictThisForNode(e) = ctConflictWins then 
      Result := 'ctConflictWins'
    else if ConflictThisForNode(e) = ctConflictLoses then 
      Result := 'ctConflictLoses';
  end;
end;

{
  ConflictAllString:
  Uses ConflictAllForNode or ConflictAllForMainRecord and outputs a string.
  
  Example usage:
  e := RecordByIndex(FileByIndex(0), 1);
  AddMessage(ConflictAllString(e));
}
function ConflictAllString(e: IInterface): string;
begin
  Result := '';
  if ElementType(e) = etMainRecord then begin
    if ConflictAllForMainRecord(e) = caUnknown then 
      Result := 'caUnknown'
    else if ConflictAllForMainRecord(e) = caOnlyOne then 
      Result := 'caOnlyOne'
    else if ConflictAllForMainRecord(e) = caConflict then 
      Result := 'caConflict'
    else if ConflictAllForMainRecord(e) = caNoConflict then 
      Result := 'caNoConflict'
    else if ConflictAllForMainRecord(e) = caConflictBenign then 
      Result := 'caConflictBenign'
    else if ConflictAllForMainRecord(e) = caOverride then 
      Result := 'caOverride'
    else if ConflictAllForMainRecord(e) = caConflictCritical then 
      Result := 'caConflictCritical';
  end
  else begin
    if ConflictAllForNode(e) = caUnknown then 
      Result := 'caUnknown'
    else if ConflictAllForNode(e) = caOnlyOne then 
      Result := 'caOnlyOne'
    else if ConflictAllForNode(e) = caConflict then 
      Result := 'caConflict'
    else if ConflictAllForNode(e) = caNoConflict then 
      Result := 'caNoConflict'
    else if ConflictAllForNode(e) = caConflictBenign then 
      Result := 'caConflictBenign'
    else if ConflictAllForNode(e) = caOverride then 
      Result := 'caOverride'
    else if ConflictAllForNode(e) = caConflictCritical then 
      Result := 'caConflictCritical';
  end;
end;

{
  FreeAndNil:
  Frees and nils an object reference.
  
  Usage:
  sl := TStringList.Create;
  sl.Add('Hi');
  FreeAndNil(sl);
}
procedure FreeAndNil(var ObjectReference: TObject);
begin
  if Assigned(ObjectReference) then begin
    ObjectReference.Free;
    ObjectReference := nil;
  end;
end;

{
  IsDirectoryEmpty:
  Checks if a given directory is empty.
  
  Example usage:
  if not IsDirectoryEmpty(ScriptsPath) then
    AddMessage('You have scripts!  That''s good.');
}
function IsDirectoryEmpty(const directory: string): boolean;
var
 searchRec: TSearchRec;
begin
  try
    result := (FindFirst(directory+'\*.*', faAnyFile, searchRec) = 0) AND
      (FindNext(searchRec) = 0) AND
      (FindNext(searchRec) <> 0);
  finally
    FindClose(searchRec) ;
  end;
end;

{
  Matches:
  Checks if an input string matches a basic regex input.
  
  Example usage:
  if Matches('This.is.a.test.bak', 'This.*.*.*.bak') then
    AddMessage('Works!');
}
function Matches(input, expression: string): boolean;
var
  slExpr: TStringList;
  regex: TRegEx;
  pPos, i: integer;
begin
  Result := false;
  
  // use stringlist to determine if input matches expression
  slExpr := TStringList.Create;
  slExpr.Delimiter := '*';
  slExpr.StrictDelimiter := true;
  slExpr.DelimitedText := expression;
  for i := Pred(slExpr.Count) downto 0 do begin
    if slExpr[i] = '' then
      slExpr.Delete(i);
  end;
  
  if Pos('*', expression) > 0 then begin
    pPos := 0;
    for i := 0 to Pred(slExpr.Count) do begin
      if Pos(slExpr[i], input) > pPos then begin
        pPos := Pos(slExpr[i], input);
        input := Copy(input, Pos(slExpr[i], input) + Length(slExpr[i]) + 1, Length(input));
      end
      else
        break;
      if i = Pred(slExpr.Count) then
        Result := true;
    end;
  end
  else
    Result := (input = expression);
end;

{
  wCopyFile:
  Copies a file using windows (cmd) via ShellExecute to avoid memory leaks
  associated with using the pascal CopyFile routine.
  
  Example usage:
  wCopyFile(GamePath + 'Skyrim.exe', '%UserProfile%\Desktop\Skyrim.exe.bak');
}
procedure wCopyFile(src, dst: string; silent: boolean);
begin
  if not silent then AddMessage('Copying '+src+' to '+dst);
  ShellExecute(TForm(frmMain).Handle, 'open', 'cmd', '/C copy /Y "'+src+'" "'+dst+'"', 
    ExtractFilePath(src), SW_HIDE);
end;

{
  CopyDirectory:
  Recursively copies all of the contents of a directory.
  
  Example usage:
  slIgnore := TStringList.Create;
  slIgnore.Add('mteFunctions.pas');
  CopyDirectory(ScriptsPath, 'C:\ScriptsBackup', slIgnore);
}
procedure CopyDirectory(src, dst: string; ignore: TStringList; verbose: boolean);
var
  i: integer;
  rec: TSearchRec;
  skip: boolean;
begin
  src := AppendIfMissing(src, '\');
  dst := AppendIfMissing(dst, '\');
  
  if FindFirst(src + '*', faAnyFile, rec) = 0 then begin
    repeat
      skip := false;
      for i := 0 to Pred(ignore.Count) do begin
        skip := Matches(Lowercase(rec.Name), ignore[i]);
        if (Pos('.', ignore[i]) > 0) and ((rec.attr and faDirectory) = faDirectory) then
          skip := false;
        if (rec.Name = '.') or (rec.Name = '..') then
          skip := true;
        if skip and verbose then AddMessage('    Skipping '+rec.Name+', matched '+ignore[i]);
        if skip then
          break;
      end;
      if not skip then begin
        ForceDirectories(dst);
        if (rec.attr and faDirectory) <> faDirectory then begin
          if verbose then AddMessage('    Copying file from '+src+rec.Name+' to '+dst+rec.Name);
          CopyFile(PChar(src+rec.Name), PChar(dst+rec.Name), false);
        end
        else
          CopyDirectory(src+rec.Name, dst+rec.Name, ignore, verbose);
      end;
    until FindNext(rec) <> 0;
    
    FindClose(rec);
  end;
end;

{
  BatchCopyDirectory:
  Adds copy commands to a batch stringlist to copy all of the 
  contents of a directory.
  
  Example usage:
  slIgnore := TStringList.Create;
  batch := TStringList.Create;
  slIgnore.Add('mteFunctions.pas');
  BatchCopyDirectory(ScriptsPath, 'C:\ScriptsBackup', batch, slIgnore, false);
}
procedure BatchCopyDirectory(src, dst: string; ignore: TStringList; 
  var batch: TStringList; verbose: boolean);
var
  i: integer;
  rec: TSearchRec;
  skip: boolean;
begin
  src := AppendIfMissing(src, '\');
  dst := AppendIfMissing(dst, '\');
  
  if FindFirst(src + '*', faAnyFile, rec) = 0 then begin
    repeat
      skip := false;
      for i := 0 to Pred(ignore.Count) do begin
        skip := Matches(Lowercase(rec.Name), ignore[i]);
        if (Pos('.', ignore[i]) > 0) and ((rec.attr and faDirectory) = faDirectory) then
          skip := false;
        if (rec.Name = '.') or (rec.Name = '..') then
          skip := true;
        if skip and verbose then AddMessage('    Skipping '+rec.Name+', matched '+ignore[i]);
        if skip then
          break;
      end;
      if not skip then begin
        ForceDirectories(dst);
        if (rec.attr and faDirectory) <> faDirectory then begin
          if verbose then AddMessage('    Copying file from '+src+rec.Name+' to '+dst+rec.Name);
          batch.Add('copy /Y "'+src+rec.Name+'" "'+dst+rec.Name+'"');
        end
        else
          BatchCopyDirectory(src+rec.Name, dst+rec.Name, ignore, batch, verbose);
      end;
    until FindNext(rec) <> 0;
    
    FindClose(rec);
  end;
end;

{
  DeleteDirectory:
  Recursively deletes a directory and its contents.
  
  Example usage:
  DeleteDirectory(ScriptsPath + 'mp\temp\', true);
}
function DeleteDirectory(src: string; onlyChildren: boolean): boolean;
const
  debug = false;
var
  rec: TSearchRec;
begin
  // exit early if directory doesn't exist
  if not DirectoryExists(src) then exit;
  try
    // loop through files in directory
    if FindFirst(src + '*', faAnyFile, rec) = 0 then begin
      repeat
        // do not try to recurse into . or .. else bad things happen.
        if (rec.name <> '.') and (rec.name <> '..') then begin
          if (rec.attr and faDirectory) <> faDirectory then begin
            // delete files
            if debug then AddMessage('Deleting file '+src+rec.name);
            DeleteFile(src + rec.name);
          end
          else begin
            // recurse to delete directories in the directory
            if debug then AddMessage('Deleting directory '+src+rec.name+'\');
            DeleteDirectory(src + rec.name + '\', false);
          end;
        end;
      until FindNext(rec) <> 0;
      
      FindClose(rec);
    end;
    
    // remove directory if onlyChildren is false
    if not onlyChildren then RemoveDir(src);
    Result := true;
  except on Exception do
    Result := false;
  end;
end;

{
  RecursiveFileSearch:
  Recursively searches a path for a file matching aFileName, ignoring
  directories in the ignore TStringList, and not traversing deeper than
  maxDepth.
  
  Example usage:
  ignore := TStringList.Create;
  ignore.Add('Data');
  p := RecursiveFileSearch('Skyrim.exe', GamePath, ignore, 1, false);
  AddMessage(p);
}
function RecursiveFileSearch(aPath, aFileName: string; ignore: TStringList; \
  maxDepth: integer; verbose: boolean): string;
var
  skip: boolean;
  i: integer;
  rec: TSearchRec;
  backslash: string;
begin
  Result := '';
  aPath := AppendIfMissing(aPath, '\');
  if Result <> '' then exit;
  // always ignore . and ..
  ignore.Add('.');
  ignore.Add('..');
  
  if FindFirst(aPath + '*', faAnyFile, rec) = 0 then begin
    repeat
      skip := false;
      for i := 0 to Pred(ignore.Count) do begin
        skip := Matches(Lowercase(rec.Name), ignore[i]);
        if skip then
          break;
      end;
      if not skip then begin
        if ((rec.attr and faDirectory) = faDirectory) and (maxDepth > 0) then begin
          if verbose then AddMessage('    Searching directory '+aPath+rec.Name);
          Result := RecursiveFileSearch(aPath+rec.Name, aFileName, ignore, maxDepth - 1, verbose);
        end
        else if (rec.Name = aFileName) then
          Result := aPath + rec.Name;
      end;
      if (Result <> '') then break;
    until FindNext(rec) <> 0;
    
    FindClose(rec);
  end;
end;

{
  SanitizeFileName:
  Removes characters not allowed in filenames from a string.
  
  Example usage:
  today := Now;
  fn := 'merge_'+DateToStr(today)+'_'+TimeToStr(today)+'.txt';
  fn := SanitizeFileName(fn);
}
function SanitizeFileName(fn: string): string;
const
  badChars = '<>:"/\|?*';
var
  ch: char;
  i: integer;
begin
  Result := fn;
  for i := Length(Result) - 1 downto 0 do begin
    ch := GetChar(Result, i);
    if (Pos(ch, badChars) > 0) or (Ord(ch) < 32) then
      SetChar(Result, i, '');
  end;
end;

{
  TimeStr:
  Converts the time portion of a TDateTime to a string.
  
  Example usage:
  AddMessage(TimeStr(Now)); // 02:50:54
}
function TimeStr(t: TDateTime): string;
begin
  Result := FormatDateTime('hh:nn:ss', t);
end;

{
  FileDateTimeStr:
  Converts a TDateTime to a filename-safe string.
  
  Example usage:
  AddMessage(FileDateTimeStr(Now)); // 
}
function FileDateTimeStr(t: TDateTime): string;
begin
  Result := FormatDateTime('mmddyy_hhnnss', t);
end;

{
  BoolToStr:
  Converts a boolean value into a string.
  
  Example usage:
  b := True;
  AddMessage(BoolToStr(b)); // True
}
function BoolToStr(b: boolean): string;
begin
  if b then
    Result := 'True'
  else
    Result := 'False';
end;

{
  ReverseString:
  Reverses a string.
  
  This function will allow you to quickly reverse a string.
  
  Example usage:
  s := 'backwards';
  s := ReverseString(s);
  AddMessage(s); // 'sdrawkcab'
}
function ReverseString(var s: string): string;
var
  i: integer;
begin
   Result := '';
   for i := Length(s) downto 1 do begin
     Result := Result + Copy(s, i, 1);
   end;
end;

{
  StrEndsWith:
  Checks to see if a string ends with an entered substring.
  
  Example usage:
  s := 'This is a sample string.';
  if StrEndsWith(s, 'string.') then
    AddMessage('It works!');
}
function StrEndsWith(s1, s2: string): boolean;
var
  i, n1, n2: integer;
begin
  Result := false;
  
  n1 := Length(s1);
  n2 := Length(s2);
  if n1 < n2 then exit;
  
  Result := (Copy(s1, n1 - n2 + 1, n2) = s2);
end;

{
  RemoveFromEnd:
  Removes s1 from the end of s2, if found.
  
  Example usage:
  s := 'This is a sample string.';
  AddMessage(RemoveFromEnd(s, 'string.')); //'This is a sample '
}
function RemoveFromEnd(s1, s2: string): string;
begin
  Result := s1;
  if StrEndsWith(s1, s2) then
    Result := Copy(s1, 1, Length(s1) - Length(s2));
end;

{
  AppendIfMissing:
  Appends s2 to the end of s1 if it's not already there.
  
  Example usage:
  s := 'This is a sample string.';
  AddMessage(AppendIfMissing(s, 'string.')); //'This is a sample string.'
  AddMessage(AppendIfMissing(s, '  Hello.')); //'This is a sample string.  Hello.'
}
function AppendIfMissing(s1, s2: string): string;
begin
  Result := s1;
  if not StrEndsWith(s1, s2) then
    Result := s1 + s2;
end;

{ 
  ItPos:
  An iteration position function.
  
  This function will allow you to find the position of a substring in a
  string, or the position of the second, third, etc. iterations of that
  substring.  If the iteration of the substring isn't found -1 is returned.
  
  Example usage:
  s := '10101';
  k := ItPos('1', s, 3);
  AddMessage(IntToStr(k)); // 5
}
function ItPos(substr: string; str: string; it: integer): integer;
var
  i, found: integer;
begin
  Result := -1;
  //AddMessage('Called ItPos('+substr+', '+str+', '+IntToStr(it)+')');
  if it = 0 then exit;
  found := 0;
  for i := 1 to Length(str) do begin
    //AddMessage('    Scanned substring: '+Copy(str, i, Length(substr)));
    if (Copy(str, i, Length(substr)) = substr) then begin
      //AddMessage('    Matched substring, iteration #'+IntToStr(found + 1));
      Inc(found);
    end;
    if found = it then begin
      Result := i;
      Break;
    end;
  end;
end;

{
  rPos:
  A reverse position function.
  
  This function will allow you to find the last position of a substring 
  in a string.
  
  Example usage:
  s := 'C:\SomePath\to\a\file.txt';
  AddMessage(Copy(s, rPos('\', s) + 1, Length(s)));
}
function rPos(substr, str: string): integer;
var
  i: integer;
begin
  Result := -1;
  if (Length(str) - Length(substr) < 0) then
    exit;
  for i := Length(str) - Length(substr) downto 1 do begin
    if (Copy(str, i, Length(substr)) = substr) then begin
      Result := i;
      break;
    end;
  end;
end;

{
  CopyFromTo:
  A copy function that allows you to copy from one position to another.
  
  This function is a better copy function, in my opinion.
  
  Example usage:
  s := 'Hi.  I'm a cool guy.';
  s := CopyFromTo(s, Pos('a', s), Pos('g', s));
  AddMessage(s); //'a cool g'
}
function CopyFromTo(s: string; p1: integer; p2: integer): string;
begin
  Result := '';
  if p1 > p2 then exit; 
  Result := Copy(s, p1, p2 - p1 + 1);
end;
  
{
  SetChar:
  Sets a character in a string to a different character and returns the
  resulting string.
  
  Example usage:
  s := '1234';
  SetChar(s, 2, 'A');
  AddMessage(s); //'1A34'
}
procedure SetChar(var input: string; n: integer; c: char);
var
  front, back: string;
begin
  front := Copy(input, 1, n - 1);
  back := Copy(input, n + 1, Length(input));
  input := front + c + back;
end;

{
  GetChar:
  Gets a character in a string and returns it.
  
  Example usage:
  s := '1234';
  AddMessage(GetChar(s, 3)); //'3'
}
function GetChar(const s: string; n: integer): char;
begin
  Result := Copy(s, n, 1);
end;

{
  DelimitedTextBetween:
  Gets the delimited text from a stringlist @sl between index 
  @first and ending at index @last.
  
  Example usage:
  s := 'Items\[0]\CNTO - Item\Item';
  path := TStringList.Create;
  path.Delimiter := '\';
  path.StrictDelimiter := true;
  path.DelimitedText := s;
  AddMessage(Delimitedtext(path, 2, Pred(path.count)));
  // prints 'CNTO - Item\Item'
}
function DelimitedTextBetween(var sl: TStringList; first, last: integer): string;
var
  i: integer;
begin
  Result := '';
  for i := first to last do begin
    Result := Result + sl[i];
    if i < last then Result := Result + sl.Delimiter;
  end;
end;

{
  GetTextIn:
  Returns a substring of @str between characters @open and @close.
  
  Example usage:
  s := 'Hello [test] world';
  AddMessage(GetTextIn(s, '[', ']')); // prints 'test'
}
function GetTextIn(str: string; open, close: char): string;
var
  i, openIndex: integer;
  bOpen: boolean;
begin
  Result := '';
  bOpen := false;
  for i := 1 to Length(str) do begin
    if not bOpen and (GetChar(str, i) = open) then begin
      openIndex := i;
      bOpen := true;
    end;
    if bOpen and (GetChar(str, i) = close) then begin
      Result := CopyFromTo(str, openIndex + 1, i - 1);
      break;
    end;
  end;
end;

{
  RecordByHexFormID:
  Gets a record by its hexadecimal FormID.
  
  Example usage:
  e := RecordByHexFormID('0002BFA2');
  AddMessage(Name(e));
}
function RecordByHexFormID(id: string): IInterface;
var
  f: IInterface;
begin
  f := FileByLoadOrder(StrToInt('$' + Copy(id, 1, 2)));
  Result := RecordByFormID(f, StrToInt('$' + id), true);
end;

{
  GetAuthor:
  Gets the author field from a file.
  
  Example usage:
  f := FileByName('Dragonborn.esm');
  AddMessage(GetAuthor(f)); // rsalvatore
}
function GetAuthor(f: IInterface): string;
var
  fileHeader: IInterface;
begin
  fileHeader := ElementByIndex(f, 0);
  Result := geev(fileHeader, 'CNAM - Author');
end;

{
  SetAuthor:
  Sets the author field of a file.
  
  Example usage:
  f := FileByName('Dragonborn.esm');
  SetAuthor(f, 'George');
}
procedure SetAuthor(f: IInterface; author: string);
var
  fileHeader: IInterface;
begin
  fileHeader := ElementByIndex(f, 0);
  seev(fileHeader, 'CNAM - Author', author);
end;

{
  FileByName:
  Gets a file from a filename.
  
  Example usage:
  f := FileByName('Skyrim.esm');
}
function FileByName(s: string): IInterface;
var
  i: integer;
begin
  Result := nil;
  for i := 0 to FileCount - 1 do begin
    if GetFileName(FileByIndex(i)) = s then begin
      Result := FileByIndex(i);
      break;
    end;
  end;
end;

{
  FileByAuthor:
  Gets a file by an author.
  
  Example usage:
  f := FileByAuthor('rsalvatore'); 
}
function FileByAuthor(s: string): IInterface;
var
  i: integer;
begin
  Result := nil;
  for i := 0 to FileCount - 1 do begin
    if GetAuthor(FileByIndex(i)) = s then begin
      Result := FileByIndex(i);
      break;
    end;
  end;
end;

{
  OverrideByFile:
  
  Example usage:
  ovr := OverrideByFile(record, aFile);
  if Assigned(ovr) then 
    AddMessage('Found override for '+Name(record)+' in file '+GetFileName(aFile));
}
function OverrideByFile(e, f: IInterface): IInterface;
var
  i: Integer;
  ovr: IInterface;
begin
  Result := nil;
  e := MasterOrSelf(e);
  for i := 0 to OverrideCount(e) - 1 do begin
    ovr := OverrideByIndex(e, i);
    if Equals(GetFile(ovr), f) then begin
      Result := ovr;
      break;
    end;
  end;
end;

{
  OverrideRecordCount:
  Gets the number of override records in a file or record group.
  
  Example usage:
  f := FileByName('Update.esm');
  AddMessage(IntToStr(OverrideRecordCount(f)));
}
function OverrideRecordCount(f: IInterface): integer;
var
  e: IInterface;
  i: Integer;
begin
  Result := 0;
  if ElementTypeString(f) = 'etFile' then begin
    for i := 0 to Pred(RecordCount(f)) do begin
      e := RecordByIndex(f, i);
      if not Equals(MasterOrSelf(e), e) then
        Inc(Result);
    end;
  end
  else if ElementTypeString(f) = 'etGroupRecord' then begin
    for i := 0 to Pred(ElementCount(f)) do begin
      e := ebi(f, i);
      if ElementTypeString(e) = 'etGroupRecord' then 
        Result := Result + OverrideRecordCount(e)
      else if not Equals(MasterOrSelf(e), e) then
        Inc(Result);
    end;
  end;
end;

{
  GetRecords:
  Add the records in a file or group to a stringlist.
  
  Example usage:
  slRecords := TStringList.Create;
  f := FileSelect('Select a file below:');
  g := GroupBySignature(f, 'ARMO');
  GetRecords(g, slRecords);
}
procedure GetRecords(g: IInterface; lst: TStringList);
var
  r: IInterface;
  s: string;
  i: integer;
begin
  for i := 0 to ElementCount(g) - 1 do begin
    r := ElementByIndex(g, i);
    if (Pos('GRUP Cell', Name(r)) = 1) then Continue;
    if (Pos('GRUP Exterior Cell', Name(r)) = 1) then begin
      ProcessElementsIn(r, lst);
      Continue;
    end;
    if (Signature(r) = 'GRUP') then
      ProcessElementsIn(r, lst)
    else if (Signature(r) = 'CELL') then
      lst.AddObject(Name(r), TObject(r))
    else begin
      lst.AddObject(geev(r, 'EDID'), r);
    end;
  end;
end;

{
  GroupSignature:
  Gets the signature of a group record.
  
  This is useful if you want to get a list of the groups in a file.
  
  Example usage:
  s := GroupSignature(GroupBySignature(f, 'COBJ'));
  AddMessage(s); //'COBJ'
}
function GroupSignature(g: IInterface): string;
var
  s: string;
  ct: integer;
begin
  s := Name(g);
  ct := Length(s) - Length(Copy(s, 1, Pos('"', s))) - 1; 
  Result := Copy(s, Pos('"', s) + 1, ct);
end;

{
  HexFormID
  Gets the formID of a record as a hexadecimal string.
  
  This is useful for just about every time you want to deal with FormIDs.
  
  Example usage:
  s := HexFormID(e);
}
function HexFormID(e: IInterface): string;
var
  s: string;
begin
  s := GetElementEditValues(e, 'Record Header\FormID');
  if SameText(Signature(e), '') then 
    Result := '00000000'
  else  
    Result := Copy(s, Pos('[' + Signature(e) + ':', s) + Length(Signature(e)) + 2, 8);
end;

{
  FileFormID
  Gets the local File FormID of the record.
  
  Replaces the non-functional FixedFormID function.
  
  Example usage:
  c := FileFormID(e);
}
function FileFormID(e: IInterface): cardinal;
begin
  Result := GetLoadOrderFormID(e) and $00FFFFFF;
end;

{
  IsLocalRecord
  Returns false for override and injected records.
  
  Example usage:
  e := RecordByIndex(f, 1);
  if IsLocalRecord(e) then AddMessage(Name(e) + ' is local.');
}
function IsLocalRecord(e: IInterface): boolean;
var
  loadOrder, pre: integer;
  loadFormID: string;
begin
  loadOrder := GetLoadOrder(GetFile(e));
  loadFormID := HexFormID(e);
  pre := StrToInt('$' + Copy(loadFormID, 1, 2));
  Result := (pre >= loadOrder);
end;

{
  IsOverrideRecord
  Returns true for override records.
  
  Example usage:
  e := RecordByIndex(f, 1);
  if IsOverrideRecord(e) then AddMessage(Name(e) + ' is an override.');
}
function IsOverrideRecord(e: IInterface): boolean;
begin
  Result := not Equals(MasterOrSelf(e), e);
end;

{
  SmallName
  Gets the FormID and Editor ID of a record and outputs it as a string.
  
  This is nicer than Name for many records, as it doesn't produce a 
  string that's a mile long.
  
  Example usage:
  s := SmallName(e);
  AddMessage(s); // outputs [ABCD:01234567] EditorID, ABCD being signature
}
function SmallName(e: IInterface): string;
begin
  if signature(e) = 'REFR' then
    Result := '['+Signature(e)+':'+HexFormID(e)+'] '+GetElementEditValues(e, 'NAME')
  else
    Result := '['+Signature(e)+':'+HexFormID(e)+'] '+GetElementEditValues(e, 'EDID');
end;
  
{
  ElementByIP:
  Element by Indexed Path
  
  This function is Depreciated. Use ElementByPath
}
function ElementByIP(e: IInterface; ip: string): IInterface;
begin
    Result := ElementByPath(e, ip);
end;

{
  ElementsByMIP
  This is a function that builds on ElementByPath by allowing the usage of the mult *
  character as a placeholder representing any valid index.  It returns through @lst
  a list of all elements in @e that match the input path @ip.
  
  Example usage:
  lst := TList.Create;
  ElementsByMIP(lst, e, 'Items\[*]\CNTO - Item\Item');
  for i := 0 to Pred(lst.Count) do begin
    AddMessage(GetEditValue(ObjectToElement(lst[i])));
  end; 
  lst.Free;
}
procedure ElementsByMIP(var lst: TList; e: IInterface; ip: string);
var
  xstr: string;
  i, j, index: integer;
  path: TStringList;
  bMult: boolean;
begin
  // replace forward slashes with backslashes
  ip := StringReplace(ip, '/', '\', [rfReplaceAll]);
  
  // prepare path stringlist delimited by backslashes
  path := TStringList.Create;
  path.Delimiter := '\';
  path.StrictDelimiter := true;
  path.DelimitedText := ip;
  
  // traverse path
  bMult := false;
  for i := 0 to Pred(path.count) do begin
    if Pos('[', path[i]) > 0 then begin
      xstr := GetTextIn(path[i], '[', ']');
      if xstr = '*' then begin
        for j := 0 to Pred(ElementCount(e)) do
          ElementsByMIP(lst, ElementByIndex(e, j), DelimitedTextBetween(path, i + 1, Pred(path.count)));
        bMult := true;
        break;
      end
      else
        e := ElementByIndex(e, index);
    end
    else
      e := ElementByPath(e, path[i]);
  end;
  if not bMult then lst.Add(TObject(e));
end;

{
  IndexedPath:
  Gets the indexed path of an element.
  
  Example usage:
  element := ElementByPath(e, 'Conditions\[3]\CTDA - \Comparison Value');
  AddMessage(IndexedPath(element)); //Conditions\[3]\CTDA - \Comparison Value
}
function IndexedPath(e: IInterface): string;
var
  c: IInterface;
  a: string;
begin
  c := GetContainer(e);
  while (ElementTypeString(e) <> 'etMainRecord') do begin
    if ElementTypeString(c) = 'etSubRecordArray' then
      a := '['+IntToStr(IndexOf(c, e))+']'
    else
      a := Name(e);
    if Result <> '' then Result := a + '\' + Result
    else Result := a;
    e := c;
    c := GetContainer(e);
  end;
end;

{
  ElementPath:
  Gets the path of an element.
  
  Example usage:
  element := ElementByPath(e, 'Model\MODL');
  AddMessage(ElementPath(element)); //Model\MODL - Model Filename
}
function ElementPath(e: IInterface): string;
var
  c: IInterface;
begin
  c := GetContainer(e);
  while (ElementTypeString(e) <> 'etMainRecord') do begin
    if Result <> '' then Result := Name(e) + '\' + Result
    else Result := Name(e);
    e := c;
    c := GetContainer(e);
  end;
end;

{
  SetListEditValues:
  Sets the values of elements in a list to values stored in a stringlist.
  
  Example usage:
  SetListEditValues(e, 'Additional Races', slAdditionalRaces);
}
procedure SetListEditValues(e: IInterface; ip: string; values: TStringList);
var
  i: integer;
  list, newelement: IInterface;
begin
  // exit if values is empty
  if values.Count = 0 then exit;
  
  list := ElementByPath(e, ip);
  // clear element list except for one element
  While ElementCount(list) > 1 do
    RemoveByIndex(list, 0, true);
  
  // create elements and populate the list
  for i := 0 to values.Count - 1 do begin
    newelement := ElementAssign(list, HighInteger, nil, False);
    try 
      SetEditValue(newelement, values[i]);
    except on Exception do
      Remove(newelement); // remove the invalid/failed element
    end;
  end;
  Remove(ElementByIndex(list, 0));
end;

{
  SetListNativeValues:
  Sets the native values of elements in a list to the values stored in a Tlist.
  
  Example usage:
  SetListNativeValues(e, 'KWDA', lstKeywords);
}
procedure SetListNativeValues(e: IInterface; ip: string; values: TList);
var
  i: integer;
  list, newelement: IInterface;
begin
  // exit if values is empty
  if values.Count = 0 then exit;
  
  list := ElementByPath(e, ip);
  
  // clear element list except for one element
  While ElementCount(list) > 1 do
    RemoveByIndex(list, 0);
  
  // set element[0] to values[0]
  SetNativeValue(ElementByIndex(list, 0), values[0]);
  // create elements for the rest of the list
  for i := 1 to values.Count - 1 do begin
    newelement := ElementAssign(list, HighInteger, nil, False);
    SetNativeValue(newelement, values[i]);
  end;
end;

{
  ebn:
  ElementByName shortened function name.
}
function ebn(e: IInterface; n: string): IInterface;
begin
  Result := ElementByName(e, n);
end;

{
  ebp:
  ElementByPath shortened function name.
}
function ebp(e: IInterface; p: string): IInterface;
begin
  Result := ElementByPath(e, p);
end;

{
  ebi:
  ElementByIndex shortened function name.
}
function ebi(e: IInterface; i: integer): IInterface;
begin
  Result := ElementByIndex(e, i);
end;

{
  ebip:
  ElementByPath shortened function name.
}
function ebip(e: IInterface; ip: string): IInterface;
begin
  Result := ElementByPath(e, ip);
end;

{
  mgeev:
  Uses GetEditValues on each element in a list of elements to
  produce a stringlist of element edit values.  Use with ElementsByMIP.
  
  Example usage:
  lst := TList.Create;
  // setup an arrray in lst with ElementsByMIP
  sl := TStringList.Create;
  mgeev(sl, lst);
}
procedure mgeev(var sl: TStringList; var lst: TList);
var
  i: integer;
  e: IInterface;
begin
  for i := 0 to Pred(lst.Count) do begin
    e := ObjectToElement(lst[i]);
    if Assigned(e) then
      sl.Add(GetEditValue(e))
    else
      sl.Add('');
  end;
end;

{
  geev:
  GetElementEditValues, enhanced with ElementByPath.
  
  Example usage:
  s1 := geev(e, 'Conditions\[3]\CTDA - \Function');
  s2 := geev(e, 'KWDA\[2]');
}
function geev(e: IInterface; ip: string): string;
begin
  Result := GetEditValue(ElementByPath(e, ip));
end;

{
  genv:
  GetElementNativeValues, enhanced with ElementByPath.
  
  Example usage:
  f1 := genv(e, 'KWDA\[3]');
  f2 := genv(e, 'Armature\[2]');
}
function genv(e: IInterface; ip: string): variant;
begin
  Result := GetNativeValue(ElementByPath(e, ip));
end;

{
  seev:
  SetElementEditValues, enhanced with ElementByPath.
  
  Example usage:
  seev(e, 'Conditions\[2]\CTDA - \Type', '10000000');
  seev(e, 'KWDA\[0]'),
}
procedure seev(e: IInterface; ip: string; val: string);
begin
  SetEditValue(ElementByPath(e, ip), val);
end;

{
  senv:
  SetElementNativeValues, enhanced with ElementByPath.
  
  Example usage:
  senv(e, 'KWDA\[1]', $0006C0EE); // $0006C0EE is ArmorHelmet keyword
}
procedure senv(e: IInterface; ip: string; val: variant);
begin
  SetNativeValue(ElementByPath(e, ip), val);
end;

{
  slev:
  SetListEditValues shorted function name.
  
  Example usage:
  slev(e, 'Additional Races', slAdditionalRaces);
}
procedure slev(e: IInterface; ip: string; values: TStringList);
begin
  SetListEditValues(e, ip, values);
end;

{
  slevo
  SetListEditValues - Objects.  Sets the values in an array element
  to the objects in a TStringList.
  
  Example usage:
  slevo(e, 'KWDA', slKeywords);
}
procedure slevo(e: IInterface; ip: string; values: TStringList);
var
  i: integer;
  list, newelement: IInterface;
begin
  // exit if values is empty
  if values.Count = 0 then exit;
  
  list := ElementByPath(e, ip);
  
  // clear element list except for one element
  While ElementCount(list) > 1 do
    RemoveByIndex(list, 0);
  
  // set element[0] to values[0]
  SetEditValue(ElementByIndex(list, 0), Integer(values.Objects[0]));
  // create elements for the rest of the list
  for i := 1 to values.Count - 1 do begin
    newelement := ElementAssign(list, HighInteger, nil, False);
    SetEditValue(newelement, Integer(values.Objects[i]));
  end;
end;

{
  slnv:
  SetListNativeValues shorted function name.
  
  Example usage:
  slnv(e, 'KWDA', lstKeywords);
}
procedure slnv(e: IInterface; ip: string; values: TList);
begin
  SetListNativeValues(e, ip, values);
end;

{
  gav:
  GetAllValues shortened function name.
  
  Example usage:
  gav(e);
}
function gav(e: IInterface): string;
var
  i: integer;
begin
  Result := GetEditValue(e);
  for i := 0 to ElementCount(e) - 1 do
    if (Result <> '') then Result := Result + ';' + gav(ElementByIndex(e, i))
    else Result := gav(ElementByIndex(e, i));
end;

{
  IsD:
  GetIsDeleted shortened function name.
}
function IsD(e: IInterface): boolean;
begin
  Result := GetIsDeleted(e);
end;

{
  IsID:
  GetIsInitiallyDisabled shortened function name.
}
function IsID(e: IInterface): boolean;
begin
  Result := GetIsInitiallyDisabled(e);
end;

{
  IsP:
  GetIsPersistent shortened function name.
}
function IsP(e: IInterface): boolean;
begin
  Result := GetIsPersistent(e);
end;

{
  IsVWD:
  GetIsVisibleWhenDistant shortened function name.
}
function IsVWD(e: IInterface): boolean;
begin
  Result := GetIsVisibleWhenDistant(e);
end;

{
  SetD:
  SetIsDeleted shortened function name.
}
procedure SetD(e: IInterface; b: boolean);
begin
  SetIsDeleted(e, b);
end;

{
  SetID:
  SetIsInitiallyDisabled shortened function name.
}
procedure SetID(e: IInterface; b: boolean);
begin
  SetIsInitiallyDisabled(e, b);
end;

{
  SetP:
  SetIsPersistent shortened function name.
}
procedure SetP(e: IInterface; b: boolean);
begin
  SetIsPersistent(e, b);
end;

{
  SetVWD:
  SetIsVisibleWhenDistant shortened function name.
}
procedure SetVWD(e: IInterface; b: boolean);
begin
  SetIsVisibleWhenDistant(e, b);
end;

{
  HasKeyword:
  Checks if an input record has a keyword matching the input EditorID.
  
  Example usage:
  if HasKeyword(e, 'ArmorHeavy') then
    AddMessage(Name(e) + ' is a heavy armor.');
}
function HasKeyword(e: IInterface; edid: string): boolean;
var
  kwda: IInterface;
  n: integer;
begin
  Result := false;
  kwda := ElementByPath(e, 'KWDA');
  for n := 0 to ElementCount(kwda) - 1 do
    if GetElementEditValues(LinksTo(ElementByIndex(kwda, n)), 'EDID') = edid then 
      Result := true;
end;

{
  HasItem:
  Checks if an input record has an item matching the input EditorID.
  
  Example usage:
  if HasItem(e, 'IngotIron') then
    AddMessage(Name(e) + ' is made using iron!');
}
function HasItem(rec: IInterface; s: string): boolean;
var
  name: string;
  items, li: IInterface;
  i: integer;
begin
  Result := false;
  items := ElementByPath(rec, 'Items');
  if not Assigned(items) then 
    exit;
  
  for i := 0 to ElementCount(items) - 1 do begin
    li := ElementByIndex(items, i);
    name := geev(LinksTo(ElementByPath(li, 'CNTO - Item\Item')), 'EDID');
    if name = s then begin
      Result := true;
      Break;
    end;
  end;
end;

{
  HasPerkCondition:
  Checks if an input record has a HasPerk condition requiring a perk
  matching the input EditorID.
  
  Example usage:
  if HasPerkCondition(e, 'AdvancedSmithing') then
    AddMessage(Name(e) + ' is an advanced armor!');
}
function HasPerkCondition(rec: IInterface; s: string): boolean;
var
  name, func: string;
  conditions, ci: IInterface;
  i: integer;
begin
  Result := false;
  conditions := ElementByPath(rec, 'Conditions');
  if not Assigned(conditions) then
    exit;
    
  for i := 0 to ElementCount(conditions) - 1 do begin
    ci := ElementByIndex(conditions, i);
    func := geev(ci, 'CTDA - \Function');
    if func = 'HasPerk' then begin
      name := geev(LinksTo(ElementByPath(ci, 'CTDA - \Perk')), 'EDID');
      if name = s then begin
        Result := true;
        Break;
      end;
    end;
  end;
end;

{
  ExtractBSA:
  Extracts BSA matching aContainerName to aPath.
  
  Example usage:
  ExtractBSA(dataPath + 'Update.bsa', 'C:\TestExtract\');
}
procedure ExtractBSA(aContainerName, aPath: string);
var
  i: integer;
  slAssets: TStringList;
begin
  // create directories
  ForceDirectories(aPath);
  
  // enumerate assets
  slAssets := TStringList.Create;
  ResourceList(aContainerName, slAssets);
  
  // save assets
  try
    for i := 0 to Pred(slAssets.Count) do begin
      //AddMessage(slAssets[i]);
      ResourceCopy(aContainerName, slAssets[i], aPath);
    end;
  except
    on E: Exception do
      AddMessage('Error copying file ' + slAssets[i] + ': ' + E.Message);
  end;
  
  // free stringlists
  slAssets.Free;
end;

{
  ExtractPathBSA:
  Extracts assets from a BSA that match a specified path.
  
  Example usage:
  ExtractPathBSA(DataPath + 'SkyUI.esp', TempPath, 'interface\translations');
} 
procedure ExtractPathBSA(aContainerName, aPath, aSubPath: string);
var
  i: integer;
  slAssets: TStringList;
begin
  // create directories
  ForceDirectories(aPath);
  
  // enumerate assets
  slAssets := TStringList.Create;
  ResourceList(aContainerName, slAssets);
  
  // save assets
  try
    for i := 0 to Pred(slAssets.Count) do begin
      //AddMessage(slAssets[i]);
      if Pos(Lowercase(aSubPath), LowerCase(slAssets[i])) = 1 then
        ResourceCopy(aContainerName, slAssets[i], aPath);
    end;
  except
    on E: Exception do
      AddMessage('Error copying file ' + slAssets[i] + ': ' + E.Message);
  end;
  
  // free stringlists
  slAssets.Free;
end;

{
  PrintBSAContents:
  Prints to the log the contents of a BSA file.
  
  Example usage:
  PrintBSAContents(dataPath + 'Update.bsa');
}
procedure PrintBSAContents(aContainerName);
var
  i: integer;
  slAssets: TStringList;
begin
  // enumerate assets
  slAssets := TStringList.Create;
  ResourceList(aContainerName, slAssets);
  
  // print assets
  for i := 0 to Pred(slAssets.Count) do
    AddMessage(slAssets[i]);
    
  // free stringlist
  slAssets.Free;
end;

{
  AddMastersToList:
  Adds the masters from a specific file, and the file itself, to a 
  specified stringlist.
  
  Example usage:
  slMasters := TStringList.Create;
  AddMastersToList(FileByName('Dragonborn.esm'), slMasters);
}
procedure AddMastersToList(f: IInterface; var lst: TStringList);
var
  masters, master: IInterface;
  i: integer;
  s: string;
begin
  // add file
  s := GetFileName(f);
  if (lst.IndexOf(s) = -1) then lst.Add(s);
  
  // add file's masters
  masters := ElementByPath(ElementByIndex(f, 0), 'Master Files');
  if Assigned(masters) then begin
    for i := 0 to ElementCount(masters) - 1 do begin
      s := geev(ElementByIndex(masters, i), 'MAST');
      if (lst.IndexOf(s) = -1) then lst.Add(s);
    end;
  end;
end;

{
  AddMastersToFile:
  Adds masters from a stringlist to the specified file.
  
  Example usage:
  slMasters := TStringList.Create;
  slMasters.Add('Skyrim.esm');
  slMasters.Add('Update.esm');
  UserFile := FileSelect('Select the file you wish to use below: ');
  AddMastersToFile(UserFile, slMasters, False);
}
procedure AddMastersToFile(f: IInterface; lst: TStringList; silent: boolean);
var
  masters, master: IInterface;
  i: integer;
  s: string;
  slCurrentMasters: TStringList;
begin
  // create local stringlist
  slCurrentMasters := TStringList.Create;
  
  // AddMasterIfMissing will attempt to add the masters to the file.
  if not silent then AddMessage('    Adding masters to '+GetFileName(f)+'...');
  for i := 0 to lst.Count - 1 do begin
    if (Lowercase(lst[i]) <> Lowercase(GetFileName(f))) then
      AddMasterIfMissing(f, lst[i]);
  end;
  
  // AddMasterIfMissing won't add the masters if they have been removed
  // in the current TES5Edit session, so a manual re-adding process is
  // used.  This process can't fully replace AddMasterIfMissing without
  // causing problems.  It only works for masters that have been removed
  // in the current TES5Edit session.
  masters := ElementByPath(ElementByIndex(f, 0), 'Master Files');
  if not Assigned(masters) then begin
    Add(ElementByIndex(f, 0), 'Master Files');
    masters := ElementByPath(ElementByIndex(f, 0), 'Master Files');
  end;
  for i := 0 to ElementCount(masters) - 1 do begin
    s := geev(ElementByIndex(masters, i), 'MAST');
    slCurrentMasters.Add(s);
  end;
  for i := 0 to lst.Count - 1 do begin
    if (Lowercase(lst[i]) <> Lowercase(GetFileName(f))) and (slCurrentMasters.IndexOf(lst[i]) = -1) then begin
      master := ElementAssign(masters, HighInteger, nil, False);
      SetElementEditValues(master, 'MAST', lst[i]);
      AddMessage('      +Re-added master: '+lst[i]);
    end;
  end;
  
  // free stringlist
  slCurrentMasters.Free;
end;

{
  RemoveMaster:
  Removes a master matching the specified string from the specified file.
  
  Example usage:
  f := FileByIndex(i);
  RemoveMaster(f, 'Update.esm');
}
procedure RemoveMaster(f: IInterface; mast: String);
var
  masters: IInterface;
  i: integer;
  s: string;
begin
  masters := ElementByPath(ElementByIndex(f, 0), 'Master Files');
  for i := ElementCount(masters) - 1 downto 0 do begin
    s := geev(ElementByIndex(masters, i), 'MAST');
    if s = mast then begin
      Remove(ElementByIndex(masters, i));
      break;
    end;
  end;
end;

{
  FileSelect:
  Creates a form for the user to select a file to be used.
  
  Example usage:
  UserFile := FileSelect('Select the file you wish to use below: ');
}
function FileSelect(prompt: string): IInterface;
var
  frm: TForm;
  lbl: TLabel;
  cbFiles: TComboBox;
  btnOk, btnCancel: TButton;
  i: integer;
  s: string;
begin
  frm := TForm.Create(nil);
  try
    frm.Caption := 'Select File';
    frm.Width := 300;
    frm.Height := 170;
    frm.Position := poScreenCenter;
    
    lbl := TLabel.Create(frm);
    lbl.Parent := frm;
    lbl.Width := 284;
    if Pos(#13, prompt) > 0 then begin
      lbl.Height := 60;
    end
    else begin
      lbl.Height := 30;
      frm.Height := 160;
    end;
    lbl.Left := 8;
    lbl.Top := 8;
    lbl.Caption := prompt;
    lbl.Autosize := false;
    lbl.Wordwrap := True;
    
    cbFiles := TComboBox.Create(frm);
    cbFiles.Parent := frm;
    cbFiles.Style := csDropDownList;
    cbFiles.Items.Add('-- CREATE NEW FILE --');
    cbFiles.Top := lbl.Top + lbl.Height + 20;
    cbFiles.Left := 8;
    cbFiles.Width := 200;
    for i := 0 to FileCount - 1 do begin
      s := GetFileName(FileByIndex(i));
      if (Pos(s, bethesdaFiles) > 0) then Continue;
      cbFiles.Items.Add(s);
    end;
    cbFiles.ItemIndex := 0;
    
    btnOk := TButton.Create(frm);
    btnOk.Parent := frm;
    btnOk.Left := 150 - btnOk.Width - 8;
    btnOk.Top := cbFiles.Top + 40;
    btnOk.Caption := 'OK';
    btnOk.ModalResult := mrOk;
    
    btnCancel := TButton.Create(frm);
    btnCancel.Parent := frm;
    btnCancel.Caption := 'Cancel';
    btnCancel.ModalResult := mrCancel;
    btnCancel.Left := btnOk.Left + btnOk.Width + 16;
    btnCancel.Top := btnOk.Top;
    
    if frm.ShowModal = mrOk then begin
      if (cbFiles.Text = '-- CREATE NEW FILE --') then Result := AddNewFile
      else begin
        for i := 0 to FileCount - 1 do begin
          if (cbFiles.Text = GetFileName(FileByIndex(i))) then begin
            Result := FileByIndex(i);
            Break;
          end;
          if i = FileCount - 1 then begin
            AddMessage('The script couldn''t find the file you entered.');
            Result := FileSelect(prompt);
          end;
        end;
      end;
    end;
  finally
    frm.Free;
  end;
end;

{
  MultiFileSelect:
  Gives the user a dialog from which they can select one or more files.
  
  Example usage:
  files := TStringList.Create;
  MultiFileSelect(files, 'Select some files');
  AddMesage(files.Text); // The files the user selected
  files.Free;
}
procedure MultiFileSelect(var sl: TStringList; prompt: string);
const
  spacing = 24;
var
  frm: TForm;
  pnl: TPanel;
  lastTop, contentHeight: Integer;
  cbArray: Array[0..255] of TCheckBox;
  lbl: TLabel;
  sb: TScrollBox;
  i: Integer;
  f: IInterface;
begin
  frm := TForm.Create(nil);
  try
    frm.Position := poScreenCenter;
    frm.Width := 300;
    frm.Height := 600;
    frm.BorderStyle := bsDialog;
    frm.Caption := 'Multiple file selection';
    
    // create scrollbox
    sb := TScrollBox.Create(frm);
    sb.Parent := frm;
    sb.Align := alTop;
    sb.Height := 500;
    
    // create label
    lbl := TLabel.Create(sb);
    lbl.Parent := sb;
    lbl.Caption := prompt;
    lbl.Left := 8;
    lbl.Top := 8;
    lbl.Width := 280;
    lbl.WordWrap := true;
    lastTop := lbl.Top + lbl.Height + 8 - spacing;
    
    // create checkboxes
    for i := 0 to FileCount - 2 do begin
      f := FileByLoadOrder(i);
      cbArray[i] := TCheckBox.Create(sb);
      cbArray[i].Parent := sb;
      cbArray[i].Caption := Format(' [%s] %s', [IntToHex(i, 2), GetFileName(f)]);
      cbArray[i].Top := lastTop + spacing;
      cbArray[i].Width := 260;
      lastTop := lastTop + spacing;
      cbArray[i].Left := 12;
      cbArray[i].Checked := sl.IndexOf(GetFileName(f)) > -1;
    end;
    
    contentHeight := spacing*(i + 2) + 100;
    if frm.Height > contentHeight then
      frm.Height := contentHeight;
    
    // create modal buttons
    cModal(frm, frm, frm.Height - 70);
    sl.Clear;
    
    if frm.ShowModal = mrOk then begin
      for i := 0 to FileCount - 2 do begin
        f := FileByLoadOrder(i);
        if (cbArray[i].Checked) and (sl.IndexOf(GetFileName(f)) = -1) then
          sl.Add(GetFileName(f));
      end;
    end;
  finally
    frm.Free;
  end;
end;

{
  RecordSelect:
  Gives the user a dialog from which they can select a record.
  You can use this window four different ways:
    - Inputting nil for both arguments.  This will allow the user
      to select a file, a record group, and a record.
    - Inputting a file.  This will allow the user to select a record
      group and a record.
    - Inputting a record group.  This will allow the user to select a
      file and a record.
    - Inputting a file and a record group.  This will allow the user
      to only select a record.
  
  Example usage:
  aRecord := RecordSelect('', '');
  aRecord := RecordSelect('Skyrim.esm', '');
  aRecord := RecordSelect('', 'ARMO');
  aRecord := RecordSelect('Skyrim.esm', 'ARMO');
}
procedure rsLoadRecords(Sender: TObject);
var
  f, g: IInterface;
  fn: string;
  i, j: integer;
  pnl: TPanel;
begin
  pnl := TComboBox(Sender).GetParentComponent;
  // clear records and exit if invalid group specified
  if TComboBox(Sender).ItemIndex = -1 then
    TComboBox(pnl.Controls[2]).Items.Clear
  else begin
    // find file
    fn := pnl.Controls[0].Text;
    f := FileByName(fn);
    // if file found, set records combobox content
    if Assigned(f) then begin
      g := GroupBySignature(f, TComboBox(Sender).Text);
      GetRecords(g, TComboBox(pnl.Controls[2]).Items);
      TComboBox(pnl.Controls[2]).Text := '<Record>';
    end;
  end;
end;

procedure rsLoadGroups(Sender: TObject);
var
  fn, sGroups: string;
  f, g: IInterface;
  i: integer;
  pnl: TPanel;
begin
  pnl := TComboBox(Sender).GetParentComponent;
  // clear groups, records, and exit if invalid file specified
  if TComboBox(Sender).ItemIndex = -1 then begin
    TComboBox(pnl.Controls[1]).Items.Clear;
    TComboBox(pnl.Controls[2]).Items.Clear;
  end
  // load records if selecting groups is disabled
  else if not TComboBox(pnl.Controls[1]).Enabled then
    rsLoadRecords(pnl.Controls[1])
  else begin
    // find file
    fn := TComboBox(Sender).Text;
    f := FileByName(fn);
    // if file found, load groups
    if Assigned(f) then begin
      sGroups := '';
      for i := 0 to ElementCount(f) - 1 do begin
        g := ElementByIndex(f, i);
        if Signature(g) = 'TES4' then Continue;
        if not (sGroups = '') then sGroups := sGroups + #13 + GroupSignature(g)
        else sGroups := GroupSignature(g);
      end;
      TComboBox(pnl.Controls[1]).Items.Text := sGroups;
      TComboBox(pnl.Controls[1]).Text := '<Group>';
    end;
  end;
end;

function RecordSelect(sFile, sGroup: string): IInterface;
var
  frm: TForm;
  lbl: TLabel;
  cb1, cb2, cb3: TComboBox;
  i: integer;
  pnl: TPanel;
  e: IInterface;
  sFileList, prompt: string;
begin
  // set up prompt caption
  if (sFile <> '') then begin
    if (sGroup <> '') then
      prompt := 'Choose a record:'
    else
      prompt := 'Choose a group, then choose a record:';
  end
  else begin
    if (sGroup <> '') then
      prompt := 'Choose a file, then choose a record:'
    else 
      prompt := 'Choose a file, a group, and a record:';
  end;
  
  // prepare sFileList
  for i := 0 to FileCount - 1 do begin
    if not (sFileList = '') then 
      sFileList := sFileList + #13 + GetFileName(FileByLoadOrder(i))
    else 
      sFileList := GetFileName(FileByLoadOrder(i));
  end;
  
  // display form
  frm := TForm.Create(nil);
  try
    frm.Caption := 'Choose a record';
    frm.Width := 380;
    frm.Height := 140;
    frm.Position := poScreenCenter;
    frm.BorderStyle := bsDialog;
    
    // create label instructing user what to do
    lbl := TLabel.Create(frm);
    lbl.Parent := frm;
    lbl.Left := 8;
    lbl.Top := 8;
    lbl.Width := frm.Width - 16;
    lbl.Caption := prompt;
    
    // create panel to hold comboboxes
    pnl := TPanel.Create(frm);
    pnl.Parent := frm;
    pnl.Left := 8;
    pnl.Top := 32;
    pnl.Width := frm.Width - 16;
    pnl.Height := 30;
    pnl.BevelOuter := bvNone;
    
    // create Files combobox
    cb1 := TComboBox.Create(frm);
    cb1.Parent := pnl;
    cb1.Left := 0;
    cb1.Top := 0;
    cb1.Width := 100;
    cb1.Autocomplete := True;
    cb1.Style := csDropDown;
    cb1.Sorted := False;
    cb1.AutoDropDown := True;
    cb1.Items.Text := sFileList;
    cb1.Text := '<File>';
    cb1.OnSelect := rsLoadGroups;
    
    // create groups combobox
    cb2 := TComboBox.Create(frm);
    cb2.Parent := pnl;
    cb2.Left := cb1.Left + cb1.Width + 8;
    cb2.Top := cb1.Top;
    cb2.Width := 70;
    cb2.Autocomplete := True;
    cb2.Style := csDropDown;
    cb2.Sorted := True;
    cb2.AutoDropDown := True;
    cb2.Text := '';
    cb2.OnSelect := rsLoadRecords;
    
    // create records combobox
    cb3 := TComboBox.Create(frm);
    cb3.Parent := pnl;
    cb3.Left := cb2.Left + cb2.Width + 8;
    cb3.Top := cb1.Top;
    cb3.Width := 149;
    cb3.Autocomplete := True;
    cb3.Style := csDropDown;
    cb3.Sorted := True;
    cb3.AutoDropDown := True;
    cb3.Text := '';
    
    // construct ok and cancel buttons
    cModal(frm, frm, 70);
    
    // set up form based on input variables
    if cb1.Items.IndexOf(sFile) > -1 then begin
      cb1.Enabled := false;
      cb1.ItemIndex := cb1.Items.IndexOf(sFile);
      rsLoadGroups(cb1);
    end;
    if sGroup <> '' then begin
      cb2.Enabled := false;
      cb2.Items.Add(sGroup);
      cb2.ItemIndex := cb2.Items.IndexOf(sGroup);
      if sFile <> '' then rsLoadRecords(cb2);
    end;
    
    if frm.ShowModal = mrOk then
      if cb3.ItemIndex > -1 then 
        Result := ObjectToElement(cb3.Items.Objects[cb3.Items.IndexOf(cb3.Text)]);
  finally
    frm.Free;
  end;
end;

{
  EditOutOfDate:
  Informs the user that their xEdit is out of date, and provides an 
  option to open the AFKMods thread to download the current beta.
  
  Example usage:
  EditOutOfDate('3.0.33 svn 1898', 'http://afkmods.iguanadons.net/index.php?/topic/3750-wipz-tes5edit/');
}
procedure EditOutOfDate(minimumVersion: String; url: string);
var
  frm: TForm;
  lbl: TLabel;
  btnOk, btnCancel: TButton;
  v: integer;
  s: string;
begin
  frm := TForm.Create(nil);
  try
    frm.Caption := 'xEdit out of Date!';
    frm.Width := 300;
    frm.Height := 150;
    frm.Position := poScreenCenter;
    
    try
      v := wbVersionNumber;
      s := Format('%sEdit version %d.%d.%d', [
        wbAppName,
        v shr 24,
        v shr 16 and $FF,
        v shr 8 and $FF
      ]);
    except on Exception do
      s := wbAppName + 'Edit 3.0.31 or earlier';
    end;
    
    lbl := TLabel.Create(frm);
    lbl.Parent := frm;
    lbl.Top := 8;
    lbl.Left := 8;
    lbl.WordWrap := True;
    lbl.Width := 270;
    lbl.Caption := 
      'You''re using '+s+', but this script requires '+wbAppName+'Edit '+minimumVersion+' or newer.  '
      'Click the Update button to be directed to get the latest version.';
    AddMessage('You''re using '+s+', but this script requires '+wbAppName+'Edit '+minimumVersion+' or newer.');
    AddMessage('You can get the latest version at '+url);
    
    btnOk := TButton.Create(frm);
    btnOk.Parent := frm;
    btnOk.Top := lbl.Top + lbl.Height + 16;
    btnOk.Left := 40;
    btnOk.Caption := 'Update';
    btnOk.ModalResult := mrOk;
    btnOk.Hint := 'Click to open '+url+' in '#13#10+
    'your internet browser so you can download the latest xEdit beta version.';
    btnOk.ShowHint := true;
    
    btnCancel := TButton.Create(frm);
    btnCancel.Parent := frm;
    btnCancel.Top := btnOk.Top;
    btnCancel.Left := btnOk.Left + btnOk.Width + 20;
    btnCancel.Caption := 'Cancel';
    btnCancel.ModalResult := mrCancel;
    
    frm.Height := btnOk.Top + btnOk.Height + 50;
    
    if frm.ShowModal = mrOk then begin
      ShellExecute(TForm(frm).Handle, 'open', 
        url, '', '', SW_SHOWNORMAL);
    end;
  finally 
    frm.Free;
  end;
end;

{
  BoolToChecked:
  A function which returns the TCheckBoxState corresponding to a
  boolean value.
  
  Example usage:
  cb.State := BoolToCheck(true);
}
function BoolToChecked(b: boolean): TCheckBoxState;
begin
  if b then Result := cbChecked
  else Result := cbUnchecked;
end;

{
  CheckedToBool:
  A function which returns a boolean corresponding to a 
  TCheckBoxState.
  
  Example usage:
  if CheckedToBool(cb.State) then
    AddMessage('Hi!');
}
function CheckedToBool(cbs: TCheckBoxState): boolean;
begin
  Result := (cbs = cbChecked);
end;

{
  ConstructGroup:
  A function which can be used to make a GroupBox.  Used to make
  code more compact.
  
  Example usage:
  group := ConstructGroup(frm, frm, 8, 8, 300, 300, 'My Group');
}
function ConstructGroup(h, p: TObject; top, left, height, 
  width: Integer; caption, t: string): TGroupBox;
var
  gb: TGroupBox;
begin
  gb := TGroupBox.Create(h);
  gb.Parent := p;
  gb.Top := top;
  gb.Left := left;
  gb.Width := width;
  gb.Height := height;
  gb.ClientWidth := width - 15;
  gb.ClientHeight := height - 15;
  gb.Caption := caption;
  if (t <> '') then begin
    gb.ShowHint := true;
    gb.Hint := t;
  end;
  
  Result := gb;
end;

{
  cGroup:
  Shortened version of ConstructGroup
  
  Example usage:
  group := cGroup(frm, frm, 8, 8, 300, 300, 'My Group');
}
function cGroup(h, p: TObject; top, left, height, 
  width: Integer; caption, t: string): TGroupBox;
begin
  Result := ConstructGroup(h, p, top, left, height, width, caption, t);
end;

{
  ConstructImage:
  A function which can be used to make an image.  Used to make
  code more compact.
  
  Example usage:
  img := ConstructImage(frm, frm, 8, 8, 300, 300, gear, 'Options');
}
function ConstructImage(h, p: TObject; top, left, height, 
  width: Integer; picture: TPicture; t: string): TImage;
var
  img: TImage;
begin
  img := TImage.Create(h);
  img.Parent := p;
  img.Top := top;
  img.Left := left;
  img.Width := width;
  img.Height := height;
  img.Picture := picture;
  if (t <> '') then begin 
    img.ShowHint := true;
    img.Hint := t;
  end;
  
  Result := img;
end;

{
  cImage:
  Shortened version of ConstructImage
  
  Example usage:
  img := cImage(frm, frm, 8, 8, 300, 300, gear, 'Options');
}
function cImage(h, p: TObject; top, left, height, 
  width: Integer; picture: TPicture; t: String): TImage;
begin
  Result := ConstructImage(h, p, top, left, height, width, picture, t);
end;

{
  ConstructRadioGroup:
  A function which can be used to make a radio group.  Used to make
  code more compact.
  
  Example usage:
  rg := ConstructRadioGroup(frm, frm, 8, 8, 200, 400, 'Options');
}
function ConstructRadioGroup(h, p: TObject; top, left, height, 
  width: Integer; text: String): TRadioGroup;
var
  rg: TRadioGroup;
begin
  rg := TRadioGroup.Create(h);
  rg.Parent := p;
  rg.Top := top;
  rg.Left := left;
  rg.Width := width;
  rg.Height := height;
  rg.Caption := text;
  rg.ClientHeight := height - 15;
  rg.ClientWidth := width - 15;
  
  Result := rg;
end;

{
  cRadioGroup:
  Shortened version of ConstructRadioGroup.
  
  Example usage:
  rg := cRadioGroup(frm, frm, 8, 8, 200, 400, 'Options');
}
function cRadioGroup(h, p: TObject; top, left, height, 
  width: Integer; text: String): TRadioGroup;
begin
  Result := ConstructRadioGroup(h, p, top, left, height, width, text);
end;

{
  ConstructRadioButton:
  A function which can be used to make a radio button.  Used to make
  code more compact.
  
  Example usage:
  rb := ConstructRadioButton(frm, frm, 8, 8, 200, 400, 'This way', false);
}
function ConstructRadioButton(h, p: TObject; top, left, height, 
  width: Integer; text: String; checked: boolean): TRadioButton;
var
  rb: TRadioButton;
begin
  rb := TRadioButton.Create(h);
  rb.Parent := p;
  rb.Top := top;
  rb.Left := left;
  if width > 0 then rb.Width := width;
  if height > 0 then rb.Height := height;
  rb.Caption := text;
  rb.Checked := checked;
  
  Result := rb;
end;

{
  cRadioButton:
  Shortened version of ConstructRadioButton.
  
  Example usage:
  rg := cRadioButton(frm, frm, 8, 8, 200, 400, 'This way', false);
}
function cRadioButton(h, p: TObject; top, left, height, 
  width: Integer; text: String; checked: boolean): TRadioButton;
begin
  Result := ConstructRadioButton(h, p, top, left, height, width, text, checked);
end;

{
  ConstructMemo:
  A function which can be used to make a memo.  Used to make code
  more compact.
  
  Example usages:
  memo := ConstructMemo(frm, frm, 0, 0, 200, 400, True, True, ssBoth, '');
}
function ConstructMemo(h, p: TObject; top, left, height, 
  width: Integer; ww, ro: boolean; ss: TScrollStyle; text: String): TMemo;
var
  memo: TMemo;
begin
  memo := TMemo.Create(h);
  memo.Parent := p;
  memo.Top := top;
  memo.Left := left;
  if width > 0 then memo.Width := width;
  if height > 0 then memo.Height := height;
  memo.WordWrap := ww;
  memo.ReadOnly := ro;
  memo.ScrollBars := ss;
  memo.Text := text;
  
  Result := memo;
end;

{
  cMemo:
  Shortened function name for ConstructMemo.
  
  Example usages:
  memo := ConstructMemo(frm, frm, 0, 0, 200, 400, True, True, ssBoth, '');
}
function cMemo(h, p: TObject; top, left, height, 
  width: Integer; ww, ro: boolean; ss: TScrollStyle; text: String): TMemo;
begin
  Result := ConstructMemo(h, p, top, left, height, width, ww, ro, ss, text);
end;

{
  ConstructScrollBox:
  A function which can be used to make a scrollbox.  Used to make 
  code more compact.
  
  Example usage:
  sb := ConstructScrollBox(frm, frm, 400, alTop);
}
function ConstructScrollBox(h, p: TObject; height: Integer; 
  a: TAlign): TScrollBox;
var
  sb: TScrollBox;
begin
  sb := TScrollBox.Create(h);
  sb.Parent := p;
  sb.Height := height;
  sb.Align := a;
  
  Result := sb;
end;

{
  cScrollBox:
  Shortened function name for ConstructScrollBox.
  
  Example usage:
  sb := cScrollBox(frm, frm, 400, alTop);
}
function cScrollBox(h, p: TObject; height: Integer; 
  a: TAlign): TScrollBox;
begin
  Result := ConstructScrollBox(h, p, height, a);
end;

{
  ConstructCheckbox:
  A function which can be used to make a checkbox.  Used to make 
  code more compact.
  
  Example usage:
  cb1 := ConstructCheckBox(frm, pnlBottom, 8, 8, 160, 
    'Remove persistent references', cbChecked);
}
function ConstructCheckBox(h, p: TObject; top, left, width: Integer; 
  s: String; state: TCheckBoxState; t: string): TCheckBox;
var
  cb: TCheckBox;
begin
  cb := TCheckBox.Create(h);
  cb.Parent := p;
  cb.Top := top;
  cb.Left := left;
  cb.Width := width;
  cb.Caption := s;
  cb.State := state;
  if (t <> '') then begin
    cb.ShowHint := true;
    cb.Hint := t;
  end;
  
  Result := cb;
end;

{
  cCheckBox:
  Shortened function name for ConstructCheckBox.
  
  Example usage:
  cb1 := cCheckBox(frm, pnlBottom, 8, 8, 160, 
    'Remove persistent references', cbChecked);
}
function cCheckBox(h, p: TObject; top, left, width: Integer; 
  s: String; state: TCheckBoxState; t: string): TCheckBox;
begin
  Result := ConstructCheckBox(h, p, top, left, width, s, state, t);
end;

{
  ConstructLabel:
  A function which can be used to make a label.  Used to make 
  code more compact.
  
  Example usage:
  lbl3 := ConstructLabel(frm, pnlBottom, 65, 8, 0, 0, 
    'Reference removal options:');
}
function ConstructLabel(h, p: TObject; top, left, height, 
  width: Integer; s, t: String): TLabel;
var
  lb: TLabel;
begin
  lb := TLabel.Create(h);
  lb.Parent := p;
  lb.Top := top;
  lb.Left := left;
  lb.AutoSize := false;
  lb.WordWrap := true;
  if (height = 0) and (width = 0) then lb.AutoSize := true;
  if (height = 0) and (Pos(#13, s) > 0) then lb.AutoSize := true;
  if height > 0 then lb.Height := height;
  if width > 0 then lb.Width := width;
  lb.Caption := s;
  if (t <> '') then begin
    lb.ShowHint := true;
    lb.Hint := t;
  end;
  
  Result := lb;
end;

{
  cLabel:
  Shortened function name for ConstructLabel.
  
  Example usage:
  lbl3 := cLabel(frm, pnlBottom, 65, 8, 0, 0, 
    'Reference removal options:');
}
function cLabel(h, p: TObject; top, left, height, 
  width: Integer; s, t: String): TLabel;
begin
  Result := ConstructLabel(h, p, top, left, height, width, s, t);
end;

{
  ConstructEdit:
  A function which can be used to make an edit field.  Used to 
  make code more compact.
  
  Example usage:
  ed3 := ConstructEdit(frm, frm, 100, 8, 0, 0, 'Edit me!');
}
function ConstructEdit(h, p: TObject; top, left, height, 
  width: Integer; s, t: String): TLabel;
var
  ed: TLabel;
begin
  ed := TEdit.Create(h);
  ed.Parent := p;
  ed.Top := top;
  ed.Left := left;
  if height > 0 then ed.Height := height;
  if width > 0 then ed.Width := width;
  if (height = 0) and (width = 0) then ed.AutoSize := true;
  ed.Text := s;
  if (t <> '') then begin
    ed.ShowHint := true;
    ed.Hint := t;
  end;
  
  Result := ed;
end;

{
  cEdit:
  Shortened function name for ConstructEdit.
  
  Example usage:
  ed3 := cEdit(frm, frm, 100, 8, 0, 0, 'Edit me!');
}
function cEdit(h, p: TObject; top, left, height, 
  width: Integer; s, t: String): TLabel;
begin
  Result := ConstructEdit(h, p, top, left, height, width, s, t);
end;

{
  ConstructButton:
  A function which can be used to make a button.  Used to make 
  code more compact.
  
  Example usage:
  btn1 := ConstructButton(frm, pnlBottom, 8, 8, 160, 'OK');
}
function ConstructButton(h, p: TObject; 
  top, left, height, width: Integer; s: String): TButton;
var
  btn: TButton;
begin
  btn := TButton.Create(h);
  btn.Parent := p;
  btn.Top := top;
  btn.Left := left;
  if height > 0 then btn.Height := height;
  if width > 0 then btn.Width := width;
  btn.Caption := s;
  
  Result := btn;
end;

{
  cButton:
  Shortened function name for ConstructButton.
  
  Example usage:
  cButton(frm, pnlBottom, 8, 8, 160, 'OK');
}
function cButton(h, p: TObject; 
  top, left, height, width: Integer; s: String): TButton;
begin
  Result := ConstructButton(h, p, top, left, height, width, s);
end;

{
  ConstructLabelEditPair:
  A function which makes a TLabel TEdit pair in a container
  and returns a reference to the edit.
  
  Example usage:
  edPosition := ConstructLabelEditPair(frm, 8, 8, 150, 'Minimum position offset:', '0.5');
}
function ConstructLabelEditPair(c: TObject; 
  top, left, spacing, edw: Integer; caption, text, t: string): TEdit;
var
  lbl: TLabel;
  ed: TEdit;
begin
  lbl := cLabel(c, c, top, left, 0, spacing, caption, t);
  ed := cEdit(c, c, top, left + spacing, 0, edw, text, t);
  Result := ed;
end;

{
  cPair:
  Shortened function name for ConstructLabelEditPair.
  
  Example usage:
  edPosition := cPair(frm, 8, 8, 150, 'Minimum position offset:', '0.5');
}
function cPair(c: TObject; 
  top, left, spacing, edw: Integer; caption, text, t: string): TEdit;
begin
  Result := ConstructLabelEditPair(c, top, left, spacing, edw, caption, text, t);
end;

{
  ConstructModalButtons:
  A procedure which makes the standard OK and Cancel buttons 
  on a form.
  
  Example usage:
  ConstructModalButtons(frm, pnlBottom, frm.Height - 80);
}
procedure ConstructModalButtons(h, p: TObject; top: Integer);
var
  btnOk: TButton;
  btnCancel: TButton;
begin
  btnOk := TButton.Create(h);
  btnOk.Parent := p;
  btnOk.Caption := 'OK';
  btnOk.ModalResult := mrOk;
  btnOk.Left := h.Width div 2 - btnOk.Width - 8;
  btnOk.Top := top;
  
  btnCancel := TButton.Create(h);
  btnCancel.Parent := p;
  btnCancel.Caption := 'Cancel';
  btnCancel.ModalResult := mrCancel;
  btnCancel.Left := btnOk.Left + btnOk.Width + 16;
  btnCancel.Top := btnOk.Top;
end;

{
  cModal:
  Shortened function name for ConstructModalButtons.
}
procedure cModal(h, p: TObject; top: Integer);
begin
  ConstructModalButtons(h, p, top);
end;

end.