diff options
author | Peter Breitenlohner <peb@mppmu.mpg.de> | 2013-05-21 13:53:17 +0000 |
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committer | Peter Breitenlohner <peb@mppmu.mpg.de> | 2013-05-21 13:53:17 +0000 |
commit | d3043b6e77a218362554cff9b065c8c05abef5d9 (patch) | |
tree | 75c748f0bbbf7eb9bfa833bba897ae3476a14a5c /Build/source/texk/dvisvgm/dvisvgm-1.2.2/src/XMLDocument.cpp | |
parent | 4d30fc89a17b30f1afd7472aa5219fe6d60afb52 (diff) |
dvisvgm 1.2.2
git-svn-id: svn://tug.org/texlive/trunk@30608 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-1.2.2/src/XMLDocument.cpp')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-1.2.2/src/XMLDocument.cpp | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-1.2.2/src/XMLDocument.cpp b/Build/source/texk/dvisvgm/dvisvgm-1.2.2/src/XMLDocument.cpp new file mode 100644 index 00000000000..5b6e3b1354f --- /dev/null +++ b/Build/source/texk/dvisvgm/dvisvgm-1.2.2/src/XMLDocument.cpp @@ -0,0 +1,100 @@ +/************************************************************************* +** XMLDocument.cpp ** +** ** +** This file is part of dvisvgm -- the DVI to SVG converter ** +** Copyright (C) 2005-2013 Martin Gieseking <martin.gieseking@uos.de> ** +** ** +** 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 3 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, see <http://www.gnu.org/licenses/>. ** +*************************************************************************/ + +#include "macros.h" +#include "XMLDocument.h" + +using namespace std; + +XMLDocument::XMLDocument (XMLElementNode *root) + : _rootElement(root), _emitted(false) +{ +} + + +XMLDocument::~XMLDocument () { + clear(); +} + + +void XMLDocument::clear () { + delete _rootElement; + _rootElement = 0; + FORALL(_nodes, list<XMLNode*>::iterator, i) + delete *i; + _nodes.clear(); +} + + +void XMLDocument::append (XMLNode *node) { + if (!node) + return; + XMLElementNode *newRoot = dynamic_cast<XMLElementNode*>(node); + if (newRoot) { // there can only be one root element node in the document + delete _rootElement; // so if there is already one... + _rootElement = newRoot; // ...we replace it + } + else + _nodes.push_back(node); +} + + +void XMLDocument::setRootNode (XMLElementNode *root) { + delete _rootElement; + _rootElement = root; +} + + +ostream& XMLDocument::write (ostream &os) const { + if (_rootElement) { // no root element => no output + os << "<?xml version='1.0' encoding='ISO-8859-1'?>\n"; + FORALL(_nodes, list<XMLNode*>::const_iterator, i) + (*i)->write(os); + _rootElement->write(os); + } + return os; +} + +/** Writes a part of the XML document to the given output stream and removes + * the completely written nodes. The output stops when a stop node is reached + * (this node won't be printed at all). If a node was only partly emitted, i.e. + * its child was the stop node, a further call of emit will continue the output. + * @param[in] os stream to which the output is written + * @param[in] stopElement node where emitting stops (if 0 the whole tree will be emitted) + * @return true if node was completely emitted */ +bool XMLDocument::emit (ostream& os, XMLNode *stopNode) { + if (_rootElement) { // no root element => no output + if (!_emitted) { + os << "<?xml version='1.0' encoding='ISO-8859-1'?>\n"; + _emitted = true; + } + FORALL(_nodes, list<XMLNode*>::iterator, i) { + if ((*i)->emit(os, stopNode)) { + list<XMLNode*>::iterator it = i++; // prevent i from being invalidated... + _nodes.erase(it); // ... by erase + --i; // @@ what happens if i points to first child? + } + else + return false; + } + return _rootElement->emit(os, stopNode); + } + return true; +} |