diff -r 000000000000 -r 4f2f89ce4247 WebCore/loader/TextDocument.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/loader/TextDocument.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,206 @@
+/*
+ * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "TextDocument.h"
+
+#include "DecodedDataDocumentParser.h"
+#include "Element.h"
+#include "HTMLNames.h"
+#include "HTMLViewSourceDocument.h"
+#include "SegmentedString.h"
+#include "Text.h"
+
+using namespace std;
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+// FIXME: TextDocumentParser could just be an HTMLDocumentParser
+// which started the Tokenizer in the PlainText state.
+class TextDocumentParser : public DecodedDataDocumentParser {
+public:
+    TextDocumentParser(Document*);
+    virtual ~TextDocumentParser();
+    TextDocumentParser(HTMLViewSourceDocument*);
+
+private:
+    virtual void insert(const SegmentedString&);
+    virtual void append(const SegmentedString&);
+    virtual void finish();
+    virtual bool finishWasCalled();
+
+    inline void checkBuffer(int len = 10)
+    {
+        if ((m_dest - m_buffer) > m_size - len) {
+            // Enlarge buffer
+            int newSize = std::max(m_size * 2, m_size + len);
+            int oldOffset = m_dest - m_buffer;
+            m_buffer = static_cast<UChar*>(fastRealloc(m_buffer, newSize * sizeof(UChar)));
+            m_dest = m_buffer + oldOffset;
+            m_size = newSize;
+        }
+    }
+
+private:
+    Element* m_preElement;
+
+    bool m_skipLF;
+    
+    int m_size;
+    UChar* m_buffer;
+    UChar* m_dest;
+};
+
+TextDocumentParser::TextDocumentParser(Document* document)
+    : DecodedDataDocumentParser(document)
+    , m_preElement(0)
+    , m_skipLF(false)
+{    
+    // Allocate buffer
+    m_size = 254;
+    m_buffer = static_cast<UChar*>(fastMalloc(sizeof(UChar) * m_size));
+    m_dest = m_buffer;
+}    
+
+TextDocumentParser::TextDocumentParser(HTMLViewSourceDocument* document)
+    : DecodedDataDocumentParser(document, true)
+    , m_preElement(0)
+    , m_skipLF(false)
+{    
+    // Allocate buffer
+    m_size = 254;
+    m_buffer = static_cast<UChar*>(fastMalloc(sizeof(UChar) * m_size));
+    m_dest = m_buffer;
+}
+
+TextDocumentParser::~TextDocumentParser()
+{
+    // finish() should have been called to prevent any leaks
+    ASSERT(!m_buffer);
+}
+
+void TextDocumentParser::insert(const SegmentedString&)
+{
+    ASSERT_NOT_REACHED();
+}
+
+void TextDocumentParser::append(const SegmentedString& s)
+{
+    ExceptionCode ec;
+
+    m_dest = m_buffer;
+    
+    SegmentedString str = s;
+    while (!str.isEmpty()) {
+        UChar c = *str;
+        
+        if (c == '\r') {
+            *m_dest++ = '\n';
+            
+            // possibly skip an LF in the case of an CRLF sequence
+            m_skipLF = true;
+        } else if (c == '\n') {
+            if (!m_skipLF)
+                *m_dest++ = c;
+            else
+                m_skipLF = false;
+        } else {
+            *m_dest++ = c;
+            m_skipLF = false;
+        }
+        
+        str.advance();
+        
+        // Maybe enlarge the buffer
+        checkBuffer();
+    }
+
+    if (!m_preElement && !inViewSourceMode()) {
+        RefPtr<Element> rootElement = document()->createElement(htmlTag, false);
+        document()->appendChild(rootElement, ec);
+
+        RefPtr<Element> body = document()->createElement(bodyTag, false);
+        rootElement->appendChild(body, ec);
+
+        RefPtr<Element> preElement = document()->createElement(preTag, false);
+        preElement->setAttribute("style", "word-wrap: break-word; white-space: pre-wrap;", ec);
+
+        body->appendChild(preElement, ec);
+        
+        m_preElement = preElement.get();
+    } 
+    
+    String string = String(m_buffer, m_dest - m_buffer);
+    if (inViewSourceMode()) {
+        static_cast<HTMLViewSourceDocument*>(document())->addViewSourceText(string);
+        return;
+    }
+
+    unsigned charsLeft = string.length();
+    while (charsLeft) {
+        // split large text to nodes of manageable size
+        RefPtr<Text> text = Text::createWithLengthLimit(document(), string, charsLeft);
+        m_preElement->appendChild(text, ec);
+    }
+}
+
+void TextDocumentParser::finish()
+{
+    if (!m_preElement)
+        append(SegmentedString()); // Create document structure for an empty text document.
+    m_preElement = 0;
+    fastFree(m_buffer);
+    m_buffer = 0;
+    m_dest = 0;
+
+    // FIXME: Should this call finishParsing even if m_parserStopped is true?
+    // See equivalent implementation in RawDataDocumentParser.
+    document()->finishedParsing();
+}
+
+bool TextDocumentParser::finishWasCalled()
+{
+    // finish() always calls document()->finishedParsing() so we'll be deleted
+    // after finish().
+    return false;
+}
+
+TextDocument::TextDocument(Frame* frame, const KURL& url)
+    : HTMLDocument(frame, url)
+{
+}
+
+DocumentParser* TextDocument::createParser()
+{
+    return new TextDocumentParser(this);
+}
+
+DocumentParser* createTextDocumentParser(HTMLViewSourceDocument* document)
+{
+    return new TextDocumentParser(document);
+}
+
+}