First Checked In.
git-svn-id: svn://10.0.0.236/trunk@15954 18797224-902f-48f8-a5cc-f745e15eee43
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mcmullen%netscape.com
265
mozilla/xpcom/io/nsFileSpec.cpp
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265
mozilla/xpcom/io/nsFileSpec.cpp
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsFileSpec.h"
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#include "prtypes.h"
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#if DEBUG
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#include <ostream>
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#endif
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#include <strstream>
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//========================================================================================
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namespace nsFileSpecHelpers
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//========================================================================================
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{
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enum
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{ kMaxFilenameLength = 31 // should work on Macintosh, Unix, and Win32.
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, kMaxAltDigitLength = 5
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, kMaxAltNameLength = (kMaxFilenameLength - (kMaxAltDigitLength + 1))
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};
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void LeafReplace(
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std::string& ioPath,
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char inSeparator,
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const std::string& inLeafName);
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std::string GetLeaf(const std::string& inPath, char inSeparator);
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}
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//----------------------------------------------------------------------------------------
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void nsFileSpecHelpers::LeafReplace(
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std::string& ioPath,
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char inSeparator,
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const std::string& inLeafName)
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//----------------------------------------------------------------------------------------
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{
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// Find the existing leaf name
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std::string::size_type lastSeparator = ioPath.rfind(inSeparator);
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std::string::size_type myLength = ioPath.length();
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if (lastSeparator < myLength)
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ioPath = ioPath.substr(0, lastSeparator + 1) + inLeafName;
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} // nsNativeFileSpec::SetLeafName
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//----------------------------------------------------------------------------------------
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std::string nsFileSpecHelpers::GetLeaf(const std::string& inPath, char inSeparator)
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//----------------------------------------------------------------------------------------
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{
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std::string::size_type lastSeparator = inPath.rfind(inSeparator);
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std::string::size_type myLength = inPath.length();
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if (lastSeparator < myLength)
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return inPath.substr(1 + lastSeparator, myLength - lastSeparator - 1);
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return inPath;
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} // nsNativeFileSpec::GetLeafName
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#ifdef XP_MAC
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#include "nsFileSpecMac.cpp" // Macintosh-specific implementations
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#elif defined(XP_WIN)
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#include "nsFileSpecWin.cpp" // Windows-specific implementations
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#elif defined(XP_UNIX)
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#include "nsFileSpecUnix.cpp" // Unix-specific implementations
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#endif
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//========================================================================================
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// nsFileURL implementation
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//========================================================================================
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//----------------------------------------------------------------------------------------
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nsFileURL::nsFileURL(const std::string& inString)
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//----------------------------------------------------------------------------------------
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: mURL(inString)
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#ifdef XP_MAC
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, mNativeFileSpec(inString.substr(kFileURLPrefixLength, inString.length() - kFileURLPrefixLength))
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#endif
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{
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NS_ASSERTION(mURL.substr(0, kFileURLPrefixLength) == kFileURLPrefix, "Not a URL!");
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}
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//----------------------------------------------------------------------------------------
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void nsFileURL::operator = (const std::string& inString)
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//----------------------------------------------------------------------------------------
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{
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mURL = inString;
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NS_ASSERTION(mURL.substr(0, kFileURLPrefixLength) == kFileURLPrefix, "Not a URL!");
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#ifdef XP_MAC
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mNativeFileSpec =
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inString.substr(kFileURLPrefixLength, inString.length() - kFileURLPrefixLength);
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#endif
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}
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//----------------------------------------------------------------------------------------
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nsFileURL::nsFileURL(const nsFileURL& inOther)
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//----------------------------------------------------------------------------------------
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: mURL(inOther.mURL)
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#ifdef XP_MAC
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, mNativeFileSpec(inOther.GetNativeSpec())
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#endif
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{
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}
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//----------------------------------------------------------------------------------------
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void nsFileURL::operator = (const nsFileURL& inOther)
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//----------------------------------------------------------------------------------------
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{
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mURL = inOther.mURL;
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#ifdef XP_MAC
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mNativeFileSpec = inOther.GetNativeSpec();
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#endif
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}
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//----------------------------------------------------------------------------------------
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nsFileURL::nsFileURL(const nsUnixFilePath& inOther)
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//----------------------------------------------------------------------------------------
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{
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mURL = kFileURLPrefix + ((string&)inOther);
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#ifdef XP_MAC
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mNativeFileSpec = inOther.GetNativeSpec();
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#endif
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}
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//----------------------------------------------------------------------------------------
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void nsFileURL::operator = (const nsUnixFilePath& inOther)
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//----------------------------------------------------------------------------------------
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{
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mURL = kFileURLPrefix + ((string&)inOther);
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#ifdef XP_MAC
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mNativeFileSpec = inOther.GetNativeSpec();
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#endif
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}
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//----------------------------------------------------------------------------------------
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nsFileURL::nsFileURL(const nsNativeFileSpec& inOther)
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//----------------------------------------------------------------------------------------
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{
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mURL = kFileURLPrefix + (std::string&)nsUnixFilePath(inOther);
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#ifdef XP_MAC
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mNativeFileSpec = inOther;
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#endif
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}
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//----------------------------------------------------------------------------------------
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void nsFileURL::operator = (const nsNativeFileSpec& inOther)
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//----------------------------------------------------------------------------------------
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{
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mURL = kFileURLPrefix + (std::string&)nsUnixFilePath(inOther);
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#ifdef XP_MAC
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mNativeFileSpec = inOther;
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#endif
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}
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//========================================================================================
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// nsUnixFilePath implementation
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//========================================================================================
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//----------------------------------------------------------------------------------------
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nsUnixFilePath::nsUnixFilePath(const std::string& inString)
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//----------------------------------------------------------------------------------------
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: mPath(inString)
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#ifdef XP_MAC
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, mNativeFileSpec(inString)
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#endif
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{
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NS_ASSERTION(mPath.substr(0, kFileURLPrefixLength) != kFileURLPrefix, "URL passed as path");
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}
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//----------------------------------------------------------------------------------------
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nsUnixFilePath::nsUnixFilePath(const nsFileURL& inOther)
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//----------------------------------------------------------------------------------------
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: mPath(((string&)inOther).substr(
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kFileURLPrefixLength, ((string&)inOther).length() - kFileURLPrefixLength))
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#ifdef XP_MAC
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, mNativeFileSpec(inOther.GetNativeSpec())
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#endif
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{
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}
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//----------------------------------------------------------------------------------------
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void nsUnixFilePath::operator = (const std::string& inString)
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//----------------------------------------------------------------------------------------
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{
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mPath = inString;
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#ifdef XP_MAC
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mNativeFileSpec = inString;
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#endif
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NS_ASSERTION(mPath.substr(0, kFileURLPrefixLength) != kFileURLPrefix, "URL passed as path");
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}
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//----------------------------------------------------------------------------------------
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void nsUnixFilePath::operator = (const nsFileURL& inOther)
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//----------------------------------------------------------------------------------------
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{
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mPath = ((string&)inOther).substr(
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kFileURLPrefixLength, ((string&)inOther).length() - kFileURLPrefixLength);
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#ifdef XP_MAC
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mNativeFileSpec = inOther.GetNativeSpec();
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#endif
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}
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//========================================================================================
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// nsNativeFileSpec implementation
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//========================================================================================
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#ifndef XP_MAC
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//----------------------------------------------------------------------------------------
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nsNativeFileSpec::nsNativeFileSpec()
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//----------------------------------------------------------------------------------------
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{
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}
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#endif
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//----------------------------------------------------------------------------------------
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void nsNativeFileSpec::MakeUnique(const std::string& inSuggestedLeafName)
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//----------------------------------------------------------------------------------------
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{
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if (inSuggestedLeafName.length() > 0)
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SetLeafName(inSuggestedLeafName);
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MakeUnique();
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} // nsNativeFileSpec::MakeUnique
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//----------------------------------------------------------------------------------------
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void nsNativeFileSpec::MakeUnique()
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//----------------------------------------------------------------------------------------
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{
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if (!Exists())
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return;
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short index = 0;
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std::string altName = GetLeafName();
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std::string::size_type lastDot = altName.rfind('.');
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std::string suffix;
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if (lastDot < altName.length())
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{
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suffix = altName.substr(lastDot, altName.length() - lastDot); // include '.'
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altName = altName.substr(0, lastDot);
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}
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const std::string::size_type kMaxRootLength
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= nsFileSpecHelpers::kMaxAltNameLength - suffix.length() - 1;
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if (altName.length() > kMaxRootLength)
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altName = altName.substr(0, kMaxRootLength);
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while (Exists())
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{
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// start with "Picture-2.jpg" after "Picture.jpg" exists
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if ( ++index > 999 ) // something's very wrong
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return;
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char buf[nsFileSpecHelpers::kMaxFilenameLength + 1];
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ostrstream newName(buf, nsFileSpecHelpers::kMaxFilenameLength);
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newName << altName.c_str() << "-" << index << suffix.c_str() << ends;
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SetLeafName(newName.str()); // or: SetLeafName(buf)
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}
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} // nsNativeFileSpec::MakeUnique
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