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authorMenTaLguY <mental@rydia.net>2006-01-16 02:36:01 +0000
committermental <mental@users.sourceforge.net>2006-01-16 02:36:01 +0000
commit179fa413b047bede6e32109e2ce82437c5fb8d34 (patch)
treea5a6ac2c1708bd02288fbd8edb2ff500ff2e0916 /src/dom/domstream.cpp
downloadinkscape-179fa413b047bede6e32109e2ce82437c5fb8d34.tar.gz
inkscape-179fa413b047bede6e32109e2ce82437c5fb8d34.zip
moving trunk for module inkscape
(bzr r1)
Diffstat (limited to 'src/dom/domstream.cpp')
-rwxr-xr-xsrc/dom/domstream.cpp874
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diff --git a/src/dom/domstream.cpp b/src/dom/domstream.cpp
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+++ b/src/dom/domstream.cpp
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+/**
+ * Phoebe DOM Implementation.
+ *
+ * This is a C++ approximation of the W3C DOM model, which follows
+ * fairly closely the specifications in the various .idl files, copies of
+ * which are provided for reference. Most important is this one:
+ *
+ * http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/idl-definitions.html
+ *
+ * Authors:
+ * Bob Jamison
+ *
+ * Copyright (C) 2005 Bob Jamison
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * Our base input/output stream classes. These are is directly
+ * inherited from iostreams, and includes any extra
+ * functionality that we might need.
+ *
+ * Authors:
+ * Bob Jamison <rjamison@titan.com>
+ *
+ * Copyright (C) 2004 Inkscape.org
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include <stdarg.h>
+
+#include "domstream.h"
+
+namespace org
+{
+namespace w3c
+{
+namespace dom
+{
+
+
+//#########################################################################
+//# U T I L I T Y
+//#########################################################################
+
+void pipeStream(InputStream &source, OutputStream &dest)
+{
+ for (;;)
+ {
+ int ch = source.get();
+ if (ch<0)
+ break;
+ dest.put(ch);
+ }
+ dest.flush();
+}
+
+//#########################################################################
+//# B A S I C I N P U T S T R E A M
+//#########################################################################
+
+
+/**
+ *
+ */
+BasicInputStream::BasicInputStream(const InputStream &sourceStream)
+ : source((InputStream &)sourceStream)
+{
+ closed = false;
+}
+
+/**
+ * Returns the number of bytes that can be read (or skipped over) from
+ * this input stream without blocking by the next caller of a method for
+ * this input stream.
+ */
+int BasicInputStream::available()
+{
+ if (closed)
+ return 0;
+ return source.available();
+}
+
+
+/**
+ * Closes this input stream and releases any system resources
+ * associated with the stream.
+ */
+void BasicInputStream::close()
+{
+ if (closed)
+ return;
+ source.close();
+ closed = true;
+}
+
+/**
+ * Reads the next byte of data from the input stream. -1 if EOF
+ */
+int BasicInputStream::get()
+{
+ if (closed)
+ return -1;
+ return source.get();
+}
+
+
+
+//#########################################################################
+//# B A S I C O U T P U T S T R E A M
+//#########################################################################
+
+/**
+ *
+ */
+BasicOutputStream::BasicOutputStream(const OutputStream &destinationStream)
+ : destination((OutputStream &)destinationStream)
+{
+ closed = false;
+}
+
+/**
+ * Closes this output stream and releases any system resources
+ * associated with this stream.
+ */
+void BasicOutputStream::close()
+{
+ if (closed)
+ return;
+ destination.close();
+ closed = true;
+}
+
+/**
+ * Flushes this output stream and forces any buffered output
+ * bytes to be written out.
+ */
+void BasicOutputStream::flush()
+{
+ if (closed)
+ return;
+ destination.flush();
+}
+
+/**
+ * Writes the specified byte to this output stream.
+ */
+void BasicOutputStream::put(XMLCh ch)
+{
+ if (closed)
+ return;
+ destination.put(ch);
+}
+
+
+
+//#########################################################################
+//# B A S I C R E A D E R
+//#########################################################################
+
+
+/**
+ *
+ */
+BasicReader::BasicReader(Reader &sourceReader)
+{
+ source = &sourceReader;
+}
+
+/**
+ * Returns the number of bytes that can be read (or skipped over) from
+ * this reader without blocking by the next caller of a method for
+ * this reader.
+ */
+int BasicReader::available()
+{
+ if (source)
+ return source->available();
+ else
+ return 0;
+}
+
+
+/**
+ * Closes this reader and releases any system resources
+ * associated with the reader.
+ */
+void BasicReader::close()
+{
+ if (source)
+ source->close();
+}
+
+/**
+ * Reads the next byte of data from the reader.
+ */
+int BasicReader::get()
+{
+ if (source)
+ return source->get();
+ else
+ return -1;
+}
+
+
+
+
+
+
+/**
+ * Reads a line of data from the reader.
+ */
+DOMString BasicReader::readLine()
+{
+ DOMString str;
+ while (available() > 0)
+ {
+ XMLCh ch = get();
+ if (ch == '\n')
+ break;
+ str.push_back(ch);
+ }
+ return str;
+}
+
+/**
+ * Reads a line of data from the reader.
+ */
+DOMString BasicReader::readWord()
+{
+ DOMString str;
+ while (available() > 0)
+ {
+ XMLCh ch = get();
+ if (!isprint(ch))
+ break;
+ str.push_back(ch);
+ }
+ return str;
+}
+
+
+static bool getLong(DOMString &str, long *val)
+{
+ const char *begin = str.c_str();
+ char *end;
+ long ival = strtol(begin, &end, 10);
+ if (str == end)
+ return false;
+ *val = ival;
+ return true;
+}
+
+static bool getULong(const DOMString &str, unsigned long *val)
+{
+ DOMString tmp = str;
+ char *begin = (char *)tmp.c_str();
+ char *end;
+ unsigned long ival = strtoul(begin, &end, 10);
+ if (begin == end)
+ return false;
+ *val = ival;
+ return true;
+}
+
+static bool getDouble(const DOMString &str, double *val)
+{
+ DOMString tmp = str;
+ const char *begin = tmp.c_str();
+ char *end;
+ double ival = strtod(begin, &end);
+ if (begin == end)
+ return false;
+ *val = ival;
+ return true;
+}
+
+
+
+
+/**
+ *
+ */
+Reader &BasicReader::readBool (bool& val )
+{
+ DOMString buf = readWord();
+ if (buf == "true")
+ val = true;
+ else
+ val = false;
+ return *this;
+}
+
+/**
+ *
+ */
+Reader &BasicReader::readShort (short& val )
+{
+ DOMString buf = readWord();
+ long ival;
+ if (getLong(buf, &ival))
+ val = (short) ival;
+ return *this;
+}
+
+/**
+ *
+ */
+Reader &BasicReader::readUnsignedShort (unsigned short& val )
+{
+ DOMString buf = readWord();
+ unsigned long ival;
+ if (getULong(buf, &ival))
+ val = (unsigned short) ival;
+ return *this;
+}
+
+/**
+ *
+ */
+Reader &BasicReader::readInt (int& val )
+{
+ DOMString buf = readWord();
+ long ival;
+ if (getLong(buf, &ival))
+ val = (int) ival;
+ return *this;
+}
+
+/**
+ *
+ */
+Reader &BasicReader::readUnsignedInt (unsigned int& val )
+{
+ DOMString buf = readWord();
+ unsigned long ival;
+ if (getULong(buf, &ival))
+ val = (unsigned int) ival;
+ return *this;
+}
+
+/**
+ *
+ */
+Reader &BasicReader::readLong (long& val )
+{
+ DOMString buf = readWord();
+ long ival;
+ if (getLong(buf, &ival))
+ val = ival;
+ return *this;
+}
+
+/**
+ *
+ */
+Reader &BasicReader::readUnsignedLong (unsigned long& val )
+{
+ DOMString buf = readWord();
+ unsigned long ival;
+ if (getULong(buf, &ival))
+ val = ival;
+ return *this;
+}
+
+/**
+ *
+ */
+Reader &BasicReader::readFloat (float& val )
+{
+ DOMString buf = readWord();
+ double ival;
+ if (getDouble(buf, &ival))
+ val = (float)ival;
+ return *this;
+}
+
+/**
+ *
+ */
+Reader &BasicReader::readDouble (double& val )
+{
+ DOMString buf = readWord();
+ double ival;
+ if (getDouble(buf, &ival))
+ val = ival;
+ return *this;
+}
+
+
+
+//#########################################################################
+//# I N P U T S T R E A M R E A D E R
+//#########################################################################
+
+
+InputStreamReader::InputStreamReader(const InputStream &inputStreamSource)
+ : inputStream((InputStream &)inputStreamSource)
+{
+}
+
+
+
+/**
+ * Close the underlying OutputStream
+ */
+void InputStreamReader::close()
+{
+ inputStream.close();
+}
+
+/**
+ * Flush the underlying OutputStream
+ */
+int InputStreamReader::available()
+{
+ return inputStream.available();
+}
+
+/**
+ * Overloaded to receive its bytes from an InputStream
+ * rather than a Reader
+ */
+int InputStreamReader::get()
+{
+ //Do we need conversions here?
+ int ch = (XMLCh)inputStream.get();
+ return ch;
+}
+
+
+
+//#########################################################################
+//# S T D R E A D E R
+//#########################################################################
+
+
+/**
+ *
+ */
+StdReader::StdReader()
+{
+ inputStream = new StdInputStream();
+}
+
+/**
+ *
+ */
+StdReader::~StdReader()
+{
+ delete inputStream;
+}
+
+
+
+/**
+ * Close the underlying OutputStream
+ */
+void StdReader::close()
+{
+ inputStream->close();
+}
+
+/**
+ * Flush the underlying OutputStream
+ */
+int StdReader::available()
+{
+ return inputStream->available();
+}
+
+/**
+ * Overloaded to receive its bytes from an InputStream
+ * rather than a Reader
+ */
+int StdReader::get()
+{
+ //Do we need conversions here?
+ XMLCh ch = (XMLCh)inputStream->get();
+ return ch;
+}
+
+
+
+
+
+//#########################################################################
+//# B A S I C W R I T E R
+//#########################################################################
+
+/**
+ *
+ */
+BasicWriter::BasicWriter(const Writer &destinationWriter)
+{
+ destination = (Writer *)&destinationWriter;
+}
+
+/**
+ * Closes this writer and releases any system resources
+ * associated with this writer.
+ */
+void BasicWriter::close()
+{
+ if (destination)
+ destination->close();
+}
+
+/**
+ * Flushes this output stream and forces any buffered output
+ * bytes to be written out.
+ */
+void BasicWriter::flush()
+{
+ if (destination)
+ destination->flush();
+}
+
+/**
+ * Writes the specified byte to this output writer.
+ */
+void BasicWriter::put(XMLCh ch)
+{
+ if (destination)
+ destination->put(ch);
+}
+
+/**
+ * Provide printf()-like formatting
+ */
+Writer &BasicWriter::printf(char *fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ //replace this wish vsnprintf()
+ char buf[256];
+ vsnprintf(buf, 255, fmt, args);
+ va_end(args);
+ if (buf) {
+ writeString(buf);
+ //free(buf);
+ }
+ return *this;
+}
+/**
+ * Writes the specified character to this output writer.
+ */
+Writer &BasicWriter::writeChar(char ch)
+{
+ XMLCh uch = ch;
+ put(uch);
+ return *this;
+}
+
+
+/**
+ * Writes the specified standard string to this output writer.
+ */
+Writer &BasicWriter::writeString(const DOMString &str)
+{
+ for (int i=0; i< (int)str.size(); i++)
+ put(str[i]);
+ return *this;
+}
+
+
+/**
+ *
+ */
+Writer &BasicWriter::writeBool (bool val )
+{
+ if (val)
+ writeString("true");
+ else
+ writeString("false");
+ return *this;
+}
+
+
+/**
+ *
+ */
+Writer &BasicWriter::writeShort (short val )
+{
+ char buf[32];
+ snprintf(buf, 31, "%d", val);
+ writeString(buf);
+ return *this;
+}
+
+
+
+/**
+ *
+ */
+Writer &BasicWriter::writeUnsignedShort (unsigned short val )
+{
+ char buf[32];
+ snprintf(buf, 31, "%u", val);
+ writeString(buf);
+ return *this;
+}
+
+/**
+ *
+ */
+Writer &BasicWriter::writeInt (int val)
+{
+ char buf[32];
+ snprintf(buf, 31, "%d", val);
+ writeString(buf);
+ return *this;
+}
+
+/**
+ *
+ */
+Writer &BasicWriter::writeUnsignedInt (unsigned int val)
+{
+ char buf[32];
+ snprintf(buf, 31, "%u", val);
+ writeString(buf);
+ return *this;
+}
+
+/**
+ *
+ */
+Writer &BasicWriter::writeLong (long val)
+{
+ char buf[32];
+ snprintf(buf, 31, "%ld", val);
+ writeString(buf);
+ return *this;
+}
+
+/**
+ *
+ */
+Writer &BasicWriter::writeUnsignedLong(unsigned long val)
+{
+ char buf[32];
+ snprintf(buf, 31, "%lu", val);
+ writeString(buf);
+ return *this;
+}
+
+/**
+ *
+ */
+Writer &BasicWriter::writeFloat(float val)
+{
+ char buf[32];
+ snprintf(buf, 31, "%8.3f", val);
+ writeString(buf);
+ return *this;
+}
+
+/**
+ *
+ */
+Writer &BasicWriter::writeDouble(double val)
+{
+ char buf[32];
+ snprintf(buf, 31, "%8.3f", val);
+ writeString(buf);
+ return *this;
+}
+
+
+
+
+//#########################################################################
+//# O U T P U T S T R E A M W R I T E R
+//#########################################################################
+
+
+OutputStreamWriter::OutputStreamWriter(OutputStream &outputStreamDest)
+ : outputStream(outputStreamDest)
+{
+}
+
+
+
+/**
+ * Close the underlying OutputStream
+ */
+void OutputStreamWriter::close()
+{
+ flush();
+ outputStream.close();
+}
+
+/**
+ * Flush the underlying OutputStream
+ */
+void OutputStreamWriter::flush()
+{
+ outputStream.flush();
+}
+
+/**
+ * Overloaded to redirect the output chars from the next Writer
+ * in the chain to an OutputStream instead.
+ */
+void OutputStreamWriter::put(XMLCh ch)
+{
+ //Do we need conversions here?
+ int intCh = (int) ch;
+ outputStream.put(intCh);
+}
+
+//#########################################################################
+//# S T D W R I T E R
+//#########################################################################
+
+
+/**
+ *
+ */
+StdWriter::StdWriter()
+{
+ outputStream = new StdOutputStream();
+}
+
+
+/**
+ *
+ */
+StdWriter::~StdWriter()
+{
+ delete outputStream;
+}
+
+
+
+/**
+ * Close the underlying OutputStream
+ */
+void StdWriter::close()
+{
+ flush();
+ outputStream->close();
+}
+
+/**
+ * Flush the underlying OutputStream
+ */
+void StdWriter::flush()
+{
+ outputStream->flush();
+}
+
+/**
+ * Overloaded to redirect the output chars from the next Writer
+ * in the chain to an OutputStream instead.
+ */
+void StdWriter::put(XMLCh ch)
+{
+ //Do we need conversions here?
+ int intCh = (int) ch;
+ outputStream->put(intCh);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+//###############################################
+//# O P E R A T O R S
+//###############################################
+//# Normally these would be in the .h, but we
+//# just want to be absolutely certain that these
+//# are never multiply defined. Easy to maintain,
+//# though. Just occasionally copy/paste these
+//# into the .h , and replace the {} with a ;
+//###############################################
+
+
+
+
+Reader& operator>> (Reader &reader, bool& val )
+ { return reader.readBool(val); }
+
+Reader& operator>> (Reader &reader, short &val)
+ { return reader.readShort(val); }
+
+Reader& operator>> (Reader &reader, unsigned short &val)
+ { return reader.readUnsignedShort(val); }
+
+Reader& operator>> (Reader &reader, int &val)
+ { return reader.readInt(val); }
+
+Reader& operator>> (Reader &reader, unsigned int &val)
+ { return reader.readUnsignedInt(val); }
+
+Reader& operator>> (Reader &reader, long &val)
+ { return reader.readLong(val); }
+
+Reader& operator>> (Reader &reader, unsigned long &val)
+ { return reader.readUnsignedLong(val); }
+
+Reader& operator>> (Reader &reader, float &val)
+ { return reader.readFloat(val); }
+
+Reader& operator>> (Reader &reader, double &val)
+ { return reader.readDouble(val); }
+
+
+
+
+Writer& operator<< (Writer &writer, char val)
+ { return writer.writeChar(val); }
+
+Writer& operator<< (Writer &writer, const DOMString &val)
+ { return writer.writeString(val); }
+
+Writer& operator<< (Writer &writer, bool val)
+ { return writer.writeBool(val); }
+
+Writer& operator<< (Writer &writer, short val)
+ { return writer.writeShort(val); }
+
+Writer& operator<< (Writer &writer, unsigned short val)
+ { return writer.writeUnsignedShort(val); }
+
+Writer& operator<< (Writer &writer, int val)
+ { return writer.writeInt(val); }
+
+Writer& operator<< (Writer &writer, unsigned int val)
+ { return writer.writeUnsignedInt(val); }
+
+Writer& operator<< (Writer &writer, long val)
+ { return writer.writeLong(val); }
+
+Writer& operator<< (Writer &writer, unsigned long val)
+ { return writer.writeUnsignedLong(val); }
+
+Writer& operator<< (Writer &writer, float val)
+ { return writer.writeFloat(val); }
+
+Writer& operator<< (Writer &writer, double val)
+ { return writer.writeDouble(val); }
+
+
+
+} //namespace dom
+} //namespace w3c
+} //namespace org
+
+
+//#########################################################################
+//# E N D O F F I L E
+//#########################################################################