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Diffstat (limited to 'blahtexml/source/BlahtexCore/MathmlNode.h')
| -rw-r--r-- | blahtexml/source/BlahtexCore/MathmlNode.h | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/blahtexml/source/BlahtexCore/MathmlNode.h b/blahtexml/source/BlahtexCore/MathmlNode.h new file mode 100644 index 0000000..dc4307a --- /dev/null +++ b/blahtexml/source/BlahtexCore/MathmlNode.h @@ -0,0 +1,173 @@ +// File "MathmlNode.h" +// +// blahtex (version 0.4.4) +// a TeX to MathML converter designed with MediaWiki in mind +// Copyright (C) 2006, David Harvey +// +// blahtexml (version 0.5) +// Copyright (C) 2007-2008, Gilles Van Assche +// +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; either version 2 of the License, or +// (at your option) any later version. +// +// This program 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 General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +#ifndef BLAHTEX_MATHMLNODE_H +#define BLAHTEX_MATHMLNODE_H + +#include <iostream> +#include <map> +#include <list> +#include <string> +#include "Misc.h" + +#ifdef BLAHTEXML_USING_XERCES +#include <xercesc/sax2/ContentHandler.hpp> +XERCES_CPP_NAMESPACE_USE +#endif + +namespace blahtex +{ + +// MathmlFont lists all possible MathML "mathvariant" values. Blahtex +// uses these to record fonts in the layout tree; they get converted to +// MathML 1.x font attributes if needed. +enum MathmlFont +{ + cMathmlFontNormal, + cMathmlFontBold, + cMathmlFontItalic, + cMathmlFontBoldItalic, + cMathmlFontDoubleStruck, + cMathmlFontBoldFraktur, + cMathmlFontScript, + cMathmlFontBoldScript, + cMathmlFontFraktur, + cMathmlFontSansSerif, + cMathmlFontBoldSansSerif, + cMathmlFontSansSerifItalic, + cMathmlFontSansSerifBoldItalic, + cMathmlFontMonospace +}; + +// String versions of the MathML mathvariant fonts. +// (See enum MathmlFont in LayoutTree.h.) +extern std::wstring gMathmlFontStrings[]; + + +// Represents a node in an MathML tree. +struct MathmlNode +{ + enum Type + { + // Leaf nodes types ("token elements" in MathML documentation): + cTypeMi, + cTypeMo, + cTypeMn, + cTypeMspace, + cTypeMtext, + + // Internal nodes types: + cTypeMrow, + cTypeMstyle, + cTypeMsub, + cTypeMsup, + cTypeMsubsup, + cTypeMunder, + cTypeMover, + cTypeMunderover, + cTypeMfrac, + cTypeMsqrt, + cTypeMroot, + cTypeMtable, + cTypeMtr, + cTypeMtd, + cTypeMpadded + } + mType; + + enum Attribute + { + cAttributeDisplaystyle, + cAttributeScriptlevel, + cAttributeMathvariant, + cAttributeMathcolor, + cAttributeLspace, + cAttributeRspace, + cAttributeWidth, + cAttributeStretchy, + cAttributeMinsize, + cAttributeMaxsize, + cAttributeAccent, + cAttributeMovablelimits, + cAttributeLinethickness, + cAttributeColumnalign, + cAttributeColumnspacing, + cAttributeRowspacing, + cAttributeFontfamily, + cAttributeFontstyle, + cAttributeFontweight + }; + + std::map<Attribute, std::wstring> mAttributes; + + // mText is only used for leaf nodes: it holds the text that is + // displayed between the opening and closing tags + std::wstring mText; + + // mChildren is only used for internal nodes + std::list<MathmlNode*> mChildren; + + MathmlNode(Type type, const std::wstring& text = L"") : + mType(type), + mText(text) + { } + + ~MathmlNode(); + + // This function adds mathvariant (for MathML 2.0) or fontstyle/ + // fontweight/fontfamily (for MathML 1.x) as appropriate to this node + // to obtain the desired font. It knows about MathML defaults (like the + // annoying automatic italic for single character <mi> nodes). + void AddFontAttributes( + MathmlFont desiredFont, + const MathmlOptions& options + ); + + + // Print() recursively prints the tree rooted at this node to the + // given output stream. + // + // XML entities translated according to EncodingOptions. + // + // If "indent" is true, it will print each tag pair on a new line, and + // add appropriate indenting. + void Print( + std::wostream& os, + const EncodingOptions& options, + bool indent, + int depth = 0 + ) const; + + // Used internally by Print: + void PrintType(std::wostream& os) const; + void PrintAttributes(std::wostream& os) const; +#ifdef BLAHTEXML_USING_XERCES + void PrintAsSAX2(ContentHandler& sax, const std::wstring& prefix, bool ignoreFirstmrow) const; +#endif +}; + +} + +#endif + +// end of file @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |