lyx_mirror/src/mathed/MathStream.cpp
Enrico Forestieri 0e834b9342 When producing latex output, check whether a character entered in mathed
can be encoded in the current latex encoding before resorting to the
unicodesymbols file.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@25725 a592a061-630c-0410-9148-cb99ea01b6c8
2008-07-20 01:50:54 +00:00

518 lines
8.0 KiB
C++

/**
* \file MathStream.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author André Pönitz
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "MathStream.h"
#include "MathData.h"
#include "MathExtern.h"
#include "support/textutils.h"
#include "support/docstring.h"
#include <algorithm>
#include <cstring>
#include <ostream>
using namespace std;
namespace lyx {
//////////////////////////////////////////////////////////////////////
NormalStream & operator<<(NormalStream & ns, MathAtom const & at)
{
at->normalize(ns);
return ns;
}
NormalStream & operator<<(NormalStream & ns, MathData const & ar)
{
normalize(ar, ns);
return ns;
}
NormalStream & operator<<(NormalStream & ns, docstring const & s)
{
ns.os() << s;
return ns;
}
NormalStream & operator<<(NormalStream & ns, const string & s)
{
ns.os() << from_utf8(s);
return ns;
}
NormalStream & operator<<(NormalStream & ns, char const * s)
{
ns.os() << s;
return ns;
}
NormalStream & operator<<(NormalStream & ns, char c)
{
ns.os() << c;
return ns;
}
NormalStream & operator<<(NormalStream & ns, int i)
{
ns.os() << i;
return ns;
}
/////////////////////////////////////////////////////////////////
WriteStream & operator<<(WriteStream & ws, docstring const & s)
{
if (ws.pendingBrace()) {
ws.os() << '}';
ws.pendingBrace(false);
ws.pendingSpace(false);
ws.textMode(true);
} else if (ws.pendingSpace() && s.length() > 0) {
if (isAlphaASCII(s[0]))
ws.os() << ' ';
ws.pendingSpace(false);
}
ws.os() << s;
int lf = 0;
docstring::const_iterator dit = s.begin();
docstring::const_iterator end = s.end();
for (; dit != end; ++dit)
if ((*dit) == '\n')
++lf;
ws.addlines(lf);
return ws;
}
WriteStream::WriteStream(odocstream & os, bool fragile, bool latex, bool dryrun,
Encoding const * encoding)
: os_(os), fragile_(fragile), firstitem_(false), latex_(latex),
dryrun_(dryrun), pendingspace_(false), pendingbrace_(false),
textmode_(false), line_(0), encoding_(encoding)
{}
WriteStream::WriteStream(odocstream & os)
: os_(os), fragile_(false), firstitem_(false), latex_(false),
dryrun_(false), pendingspace_(false), pendingbrace_(false),
textmode_(false), line_(0), encoding_(0)
{}
WriteStream::~WriteStream()
{
if (pendingbrace_)
os_ << '}';
else if (pendingspace_)
os_ << ' ';
}
void WriteStream::addlines(unsigned int n)
{
line_ += n;
}
void WriteStream::pendingSpace(bool how)
{
pendingspace_ = how;
}
void WriteStream::pendingBrace(bool brace)
{
pendingbrace_ = brace;
}
void WriteStream::textMode(bool textmode)
{
textmode_ = textmode;
}
WriteStream & operator<<(WriteStream & ws, MathAtom const & at)
{
at->write(ws);
return ws;
}
WriteStream & operator<<(WriteStream & ws, MathData const & ar)
{
write(ar, ws);
return ws;
}
WriteStream & operator<<(WriteStream & ws, char const * s)
{
if (ws.pendingBrace()) {
ws.os() << '}';
ws.pendingBrace(false);
ws.pendingSpace(false);
ws.textMode(true);
} else if (ws.pendingSpace() && strlen(s) > 0) {
if (isAlphaASCII(s[0]))
ws.os() << ' ';
ws.pendingSpace(false);
}
ws.os() << s;
ws.addlines(int(count(s, s + strlen(s), '\n')));
return ws;
}
WriteStream & operator<<(WriteStream & ws, char c)
{
if (ws.pendingBrace()) {
ws.os() << '}';
ws.pendingBrace(false);
ws.pendingSpace(false);
ws.textMode(true);
} else if (ws.pendingSpace()) {
if (isAlphaASCII(c))
ws.os() << ' ';
ws.pendingSpace(false);
}
ws.os() << c;
if (c == '\n')
ws.addlines(1);
return ws;
}
WriteStream & operator<<(WriteStream & ws, int i)
{
if (ws.pendingBrace()) {
ws.os() << '}';
ws.pendingBrace(false);
ws.textMode(true);
}
ws.os() << i;
return ws;
}
WriteStream & operator<<(WriteStream & ws, unsigned int i)
{
if (ws.pendingBrace()) {
ws.os() << '}';
ws.pendingBrace(false);
ws.textMode(true);
}
ws.os() << i;
return ws;
}
//////////////////////////////////////////////////////////////////////
MathStream::MathStream(odocstream & os)
: os_(os), tab_(0), line_(0), lastchar_(0)
{}
MathStream & operator<<(MathStream & ms, MathAtom const & at)
{
at->mathmlize(ms);
return ms;
}
MathStream & operator<<(MathStream & ms, MathData const & ar)
{
mathmlize(ar, ms);
return ms;
}
MathStream & operator<<(MathStream & ms, char const * s)
{
ms.os() << s;
return ms;
}
MathStream & operator<<(MathStream & ms, char c)
{
ms.os() << c;
return ms;
}
MathStream & operator<<(MathStream & ms, MTag const & t)
{
++ms.tab();
ms.cr();
ms.os() << '<' << from_ascii(t.tag_) << '>';
return ms;
}
MathStream & operator<<(MathStream & ms, ETag const & t)
{
ms.cr();
if (ms.tab() > 0)
--ms.tab();
ms.os() << "</" << from_ascii(t.tag_) << '>';
return ms;
}
void MathStream::cr()
{
os() << '\n';
for (int i = 0; i < tab(); ++i)
os() << ' ';
}
MathStream & operator<<(MathStream & ms, docstring const & s)
{
ms.os() << s;
return ms;
}
//////////////////////////////////////////////////////////////////////
MapleStream & operator<<(MapleStream & ms, MathAtom const & at)
{
at->maple(ms);
return ms;
}
MapleStream & operator<<(MapleStream & ms, MathData const & ar)
{
maple(ar, ms);
return ms;
}
MapleStream & operator<<(MapleStream & ms, char const * s)
{
ms.os() << s;
return ms;
}
MapleStream & operator<<(MapleStream & ms, char c)
{
ms.os() << c;
return ms;
}
MapleStream & operator<<(MapleStream & ms, int i)
{
ms.os() << i;
return ms;
}
MapleStream & operator<<(MapleStream & ms, char_type c)
{
ms.os().put(c);
return ms;
}
MapleStream & operator<<(MapleStream & ms, docstring const & s)
{
ms.os() << s;
return ms;
}
//////////////////////////////////////////////////////////////////////
MaximaStream & operator<<(MaximaStream & ms, MathAtom const & at)
{
at->maxima(ms);
return ms;
}
MaximaStream & operator<<(MaximaStream & ms, MathData const & ar)
{
maxima(ar, ms);
return ms;
}
MaximaStream & operator<<(MaximaStream & ms, char const * s)
{
ms.os() << s;
return ms;
}
MaximaStream & operator<<(MaximaStream & ms, char c)
{
ms.os() << c;
return ms;
}
MaximaStream & operator<<(MaximaStream & ms, int i)
{
ms.os() << i;
return ms;
}
MaximaStream & operator<<(MaximaStream & ms, docstring const & s)
{
ms.os() << s;
return ms;
}
MaximaStream & operator<<(MaximaStream & ms, char_type c)
{
ms.os().put(c);
return ms;
}
//////////////////////////////////////////////////////////////////////
MathematicaStream & operator<<(MathematicaStream & ms, MathAtom const & at)
{
at->mathematica(ms);
return ms;
}
MathematicaStream & operator<<(MathematicaStream & ms, MathData const & ar)
{
mathematica(ar, ms);
return ms;
}
MathematicaStream & operator<<(MathematicaStream & ms, char const * s)
{
ms.os() << s;
return ms;
}
MathematicaStream & operator<<(MathematicaStream & ms, char c)
{
ms.os() << c;
return ms;
}
MathematicaStream & operator<<(MathematicaStream & ms, int i)
{
ms.os() << i;
return ms;
}
MathematicaStream & operator<<(MathematicaStream & ms, docstring const & s)
{
ms.os() << s;
return ms;
}
MathematicaStream & operator<<(MathematicaStream & ms, char_type c)
{
ms.os().put(c);
return ms;
}
//////////////////////////////////////////////////////////////////////
OctaveStream & operator<<(OctaveStream & ns, MathAtom const & at)
{
at->octave(ns);
return ns;
}
OctaveStream & operator<<(OctaveStream & ns, MathData const & ar)
{
octave(ar, ns);
return ns;
}
OctaveStream & operator<<(OctaveStream & ns, char const * s)
{
ns.os() << s;
return ns;
}
OctaveStream & operator<<(OctaveStream & ns, char c)
{
ns.os() << c;
return ns;
}
OctaveStream & operator<<(OctaveStream & ns, int i)
{
ns.os() << i;
return ns;
}
OctaveStream & operator<<(OctaveStream & ns, docstring const & s)
{
ns.os() << s;
return ns;
}
OctaveStream & operator<<(OctaveStream & ns, char_type c)
{
ns.os().put(c);
return ns;
}
OctaveStream & operator<<(OctaveStream & os, string const & s)
{
os.os() << from_utf8(s);
return os;
}
} // namespace lyx