Cutelee  6.1.0
autoescape.cpp
1 /*
2  This file is part of the Cutelee template system.
3 
4  Copyright (c) 2009,2010 Stephen Kelly <steveire@gmail.com>
5 
6  This library is free software; you can redistribute it and/or
7  modify it under the terms of the GNU Lesser General Public
8  License as published by the Free Software Foundation; either version
9  2.1 of the Licence, or (at your option) any later version.
10 
11  This library is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  Lesser General Public License for more details.
15 
16  You should have received a copy of the GNU Lesser General Public
17  License along with this library. If not, see <http://www.gnu.org/licenses/>.
18 
19 */
20 
21 #include "autoescape.h"
22 
23 #include "exception.h"
24 #include "parser.h"
25 #include "template.h"
26 #include "util.h"
27 
28 #include <QtCore/QFile>
29 
30 AutoescapeNodeFactory::AutoescapeNodeFactory() {}
31 
32 Node *AutoescapeNodeFactory::getNode(const QString &tagContent, Parser *p) const
33 {
34 #if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
35  auto expr = tagContent.split(QLatin1Char(' '), QString::SkipEmptyParts);
36 #else
37  auto expr = tagContent.split(QLatin1Char(' '), Qt::SkipEmptyParts);
38 #endif
39 
40  if (expr.size() != 2) {
41  throw Cutelee::Exception(
42  TagSyntaxError, QStringLiteral("autoescape takes two arguments."));
43  }
44 
45  auto strState = expr.at(1);
46  int state;
47  if (strState == QStringLiteral("on"))
48  state = AutoescapeNode::On;
49  else if (strState == QStringLiteral("off"))
50  state = AutoescapeNode::Off;
51  else {
52  throw Cutelee::Exception(TagSyntaxError,
53  QStringLiteral("argument must be 'on' or 'off'"));
54  }
55 
56  auto n = new AutoescapeNode(state, p);
57 
58  auto list = p->parse(n, QStringLiteral("endautoescape"));
59  p->removeNextToken();
60 
61  n->setList(list);
62 
63  return n;
64 }
65 
66 AutoescapeNode::AutoescapeNode(int state, QObject *parent)
67  : Node(parent), m_state(state)
68 {
69 }
70 
71 void AutoescapeNode::setList(const NodeList &list) { m_list = list; }
72 
74 {
75  const auto old_setting = c->autoEscape();
76  c->setAutoEscape(m_state == On);
77  m_list.render(stream, c);
78  c->setAutoEscape(old_setting);
79 }
Node * getNode(const QString &tagContent, Parser *p) const override
Definition: autoescape.cpp:32
void render(OutputStream *stream, Context *c) const override
Definition: autoescape.cpp:73
The Context class holds the context to render a Template with.
Definition: context.h:119
An exception for use when implementing template tags.
Definition: exception.h:85
A list of Nodes with some convenience API for rendering them.
Definition: node.h:148
void render(OutputStream *stream, Context *c) const
Definition: node.cpp:177
Base class for all nodes.
Definition: node.h:78
The OutputStream class is used to render templates to a QTextStream.
Definition: outputstream.h:81
The Parser class processes a string template into a tree of nodes.
Definition: parser.h:49
NodeList parse(Node *parent, const QStringList &stopAt={})
Definition: parser.cpp:180
void removeNextToken()
Definition: parser.cpp:297
Utility functions used throughout Cutelee.