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unit AlignComment;
{(*}
(*------------------------------------------------------------------------------
Delphi Code formatter source code
The Original Code is AlignComment, released May 2003.
The Initial Developer of the Original Code is Anthony Steele.
Portions created by Anthony Steele are Copyright (C) 1999-2008 Anthony Steele.
All Rights Reserved.
Contributor(s): Anthony Steele.
The contents of this file are subject to the Mozilla Public License Version 1.1
(the "License"). you may not use this file except in compliance with the License.
You may obtain a copy of the License at http://www.mozilla.org/NPL/
Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied.
See the License for the specific language governing rights and limitations
under the License.
Alternatively, the contents of this file may be used under the terms of
the GNU General Public License Version 2 or later (the "GPL")
See http://www.gnu.org/licenses/gpl.html
------------------------------------------------------------------------------*)
{*)}
{$I JcfGlobal.inc}
interface
uses SourceToken, AlignBase;
type
TAlignComment = class(TAlignBase)
private
// don't align across block nexting levels
fiStartBlockLevel: integer;
protected
{ TokenProcessor overrides }
function IsTokenInContext(const pt: TSourceToken): boolean; override;
{ AlignStatements overrides }
function TokenIsAligned(const pt: TSourceToken): boolean; override;
function TokenEndsStatement(const pt: TSourceToken): boolean; override;
procedure ResetState; override;
public
constructor Create; override;
function IsIncludedInSettings: boolean; override;
end;
implementation
uses FormatFlags, JcfSettings, ParseTreeNodeType, Tokens, TokenUtils;
constructor TAlignComment.Create;
begin
inherited;
FormatFlags := FormatFlags + [eAlignComment];
fiStartBlockLevel := -1;
end;
function TAlignComment.IsIncludedInSettings: boolean;
begin
Result := (not FormattingSettings.Obfuscate.Enabled) and
FormattingSettings.Align.AlignComment;
end;
function TAlignComment.IsTokenInContext(const pt: TSourceToken): boolean;
begin
Result := (not FormattingSettings.Align.InterfaceOnly) or
(pt.HasParentNode(nInterfaceSection));
end;
procedure TAlignComment.ResetState;
begin
inherited;
fiStartBlockLevel := -1;
end;
function TAlignComment.TokenEndsStatement(const pt: TSourceToken): boolean;
begin
if pt = nil then
Result := True
{ only look at solid tokens and returns }
else if (pt.TokenType in [ttWhiteSpace]) then
begin
Result := False;
end
else
begin
Result := (pt.TokenType in [ttReturn]);
end;
end;
function ShortEnoughToMove(const pt: TSourceToken): boolean;
begin
// don't further indent long lines
Result := (pt.XPosition + Length(pt.SourceCode)) <= FormattingSettings.Returns.MaxLineLength;
end;
function TAlignComment.TokenIsAligned(const pt: TSourceToken): boolean;
var
ltNext: TSourceToken;
begin
// must be a comment on one line
Result := IsSingleLineComment(pt);
{ don't align compiler directives like other comments }
if Result then
Result := (pt.CommentStyle <> eCompilerDirective);
if Result then
begin
// must be the last thing on the line
ltNext := pt.NextTokenWithExclusions([ttWhitespace]);
Result := (ltNext <> nil) and (ltNext.TokenType = ttReturn) and
ShortEnoughToMove(pt) and
((fiStartBlockLevel < 0) or (fiStartBlockLevel = BlockLevel(pt)));
if Result and (fiStartBlockLevel < 0) then
fiStartBlockLevel := BlockLevel(pt);
end;
end;
end.
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