From a5c215ac09e9ede853024fc69a0b74a7af820ea4 Mon Sep 17 00:00:00 2001
From: Thomas Zander <t.zander@nokia.com>
Date: Tue, 24 Aug 2010 13:54:05 +0200
Subject: Add some more methods to the QFileSystemEntry

---
 src/corelib/io/qfilesystementry.cpp | 87 ++++++++++++++++++++++++++++++++++---
 src/corelib/io/qfilesystementry_p.h | 15 +++++--
 2 files changed, 94 insertions(+), 8 deletions(-)

diff --git a/src/corelib/io/qfilesystementry.cpp b/src/corelib/io/qfilesystementry.cpp
index 1cc82ef..3e8b8b2 100644
--- a/src/corelib/io/qfilesystementry.cpp
+++ b/src/corelib/io/qfilesystementry.cpp
@@ -44,20 +44,26 @@
 
 QFileSystemEntry::QFileSystemEntry(const QString &filePath)
     : m_filePath(filePath),
-    m_lastSeparator(-2)
+    m_lastSeparator(-2),
+    m_firstDotInFileName(-2),
+    m_lastDotInFileName(0)
 {
 }
 
 QFileSystemEntry::QFileSystemEntry(const QByteArray &nativeFilePath)
     : m_nativeFilePath(nativeFilePath),
-    m_lastSeparator(-2)
+    m_lastSeparator(-2),
+    m_firstDotInFileName(-2),
+    m_lastDotInFileName(0)
 {
 }
 
 QFileSystemEntry::QFileSystemEntry(const QByteArray &nativeFilePath, const QString &filePath)
     : m_filePath(filePath),
     m_nativeFilePath(nativeFilePath),
-    m_lastSeparator(-2)
+    m_lastSeparator(-2),
+    m_firstDotInFileName(-2),
+    m_lastDotInFileName(0)
 {
 }
 
@@ -83,7 +89,7 @@ void QFileSystemEntry::resolveFilePath() const
 void QFileSystemEntry::resolveNativeFilePath() const
 {
     if (!m_filePath.isEmpty() && m_nativeFilePath.isEmpty()) {
-        m_nativeFilePath = m_filePath.toLocal8Bit();
+        m_nativeFilePath = QDir::toNativeSeparators(m_filePath).toLocal8Bit();
     }
 }
 
@@ -93,10 +99,37 @@ QString QFileSystemEntry::fileName() const
     return m_filePath.mid(m_lastSeparator + 1);
 }
 
-void QFileSystemEntry::findLastSeparator() const
+QString QFileSystemEntry::suffix() const
+{
+    findFileNameSeparators();
+
+    if (m_lastDotInFileName == -1)
+        return QString();
+
+    return m_filePath.mid(m_lastSeparator + m_lastDotInFileName + 1);
+}
+
+QString QFileSystemEntry::completeSuffix() const
+{
+    findFileNameSeparators();
+    if (m_firstDotInFileName == -1)
+        return QString();
+
+    return m_filePath.mid(m_lastSeparator + m_firstDotInFileName + 1);
+}
+
+bool QFileSystemEntry::isAbsolute() const
 {
     resolveFilePath();
+    return !m_filePath.isEmpty() && (m_filePath[0].unicode() == '/' /*|| hasScheme()*/);
+}
+
+// private methods
+
+void QFileSystemEntry::findLastSeparator() const
+{
     if (m_lastSeparator == -2) {
+        resolveFilePath();
         m_lastSeparator = -1;
         for (int i = m_filePath.size() - 1; i >= 0; --i) {
             if (m_filePath[i].unicode() == '/') {
@@ -106,3 +139,47 @@ void QFileSystemEntry::findLastSeparator() const
         }
     }
 }
+
+void QFileSystemEntry::findFileNameSeparators() const
+{
+    if (m_firstDotInFileName == -2) {
+        resolveFilePath();
+        int firstDotInFileName = -1;
+        int lastDotInFileName = -1;
+        int lastSeparator = m_lastSeparator;
+
+        int stop;
+        if (lastSeparator < 0) {
+            lastSeparator = -1;
+            stop = 0;
+        } else {
+            stop = lastSeparator;
+        }
+
+        int i = m_filePath.size() - 1;
+        for (; i >= stop; --i) {
+            if (m_filePath[i].unicode() == '.') {
+                firstDotInFileName = lastDotInFileName = i;
+                break;
+            } else if (m_filePath[i].unicode() == '/') {
+                lastSeparator = i;
+                break;
+            }
+        }
+
+        if (lastSeparator != i) {
+            for (--i; i >= stop; --i) {
+                if (m_filePath[i].unicode() == '.')
+                    firstDotInFileName = i;
+                else if (m_filePath[i].unicode() == '/') {
+                    lastSeparator = i;
+                    break;
+                }
+            }
+        }
+
+        m_lastSeparator = lastSeparator;
+        m_firstDotInFileName = firstDotInFileName == -1 ? -1 : firstDotInFileName - lastSeparator;
+        m_lastDotInFileName = lastDotInFileName == -1 ? -1 : lastDotInFileName - firstDotInFileName - lastSeparator;
+    }
+}
diff --git a/src/corelib/io/qfilesystementry_p.h b/src/corelib/io/qfilesystementry_p.h
index 3e67174..1812b9f 100644
--- a/src/corelib/io/qfilesystementry_p.h
+++ b/src/corelib/io/qfilesystementry_p.h
@@ -67,20 +67,29 @@ class QFileSystemEntry
     QString filePath() const;
     QString fileName() const;
     QByteArray nativeFileName() const;
+    QString suffix() const;
+    QString completeSuffix() const;
+    bool isAbsolute() const;
+    bool isRelative() const {
+        return !isAbsolute();
+    }
 
 private:
     // creates the QString version out of the bytearray version
     void resolveFilePath() const;
     // creates the bytearray version out of the QString version
     void resolveNativeFilePath() const;
+    // resolves the separator
     void findLastSeparator() const;
+    /// resolves the dots and the separator
+    void findFileNameSeparators() const;
 
     mutable QString m_filePath; // always has slashes as separator
     mutable QByteArray m_nativeFilePath; // native encoding and separators
 
-    mutable int m_lastSeparator : 16;
-
-    int dummy : 16;
+    mutable int m_lastSeparator : 16; // index in m_filePath of last separator
+    mutable int m_firstDotInFileName : 11; // index after m_filePath for first dot (.)
+    mutable int m_lastDotInFileName : 5; // index after m_firstDotInFileName for last dot (.)
 };
 
 QT_END_NAMESPACE
-- 
cgit v0.12