Cutelee  6.1.0
templatetag.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 "templatetag.h"
22 
23 #include "../lib/exception.h"
24 #include "cutelee_tags_p.h"
25 #include "parser.h"
26 
27 TemplateTagNodeFactory::TemplateTagNodeFactory() {}
28 
30  Parser *p) const
31 {
32 #if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
33  auto expr = tagContent.split(QLatin1Char(' '), QString::SkipEmptyParts);
34 #else
35  auto expr = tagContent.split(QLatin1Char(' '), Qt::SkipEmptyParts);
36 #endif
37 
38  expr.takeAt(0);
39  if (expr.isEmpty()) {
40  throw Cutelee::Exception(
41  TagSyntaxError,
42  QStringLiteral("'templatetag' statement takes one argument"));
43  }
44 
45  auto name = expr.first();
46 
47  if (!TemplateTagNode::isKeyword(name)) {
48  throw Cutelee::Exception(TagSyntaxError,
49  QStringLiteral("Not a template tag"));
50  }
51 
52  return new TemplateTagNode(name, p);
53 }
54 
55 TemplateTagNode::TemplateTagNode(const QString &name, QObject *parent)
56  : Node(parent)
57 {
58  m_name = name;
59 }
60 
61 static QHash<QString, QString> getKeywordMap()
62 {
63  QHash<QString, QString> map;
64  map.insert(QStringLiteral("openblock"), QLatin1String(BLOCK_TAG_START));
65  map.insert(QStringLiteral("closeblock"), QLatin1String(BLOCK_TAG_END));
66  map.insert(QStringLiteral("openvariable"), QLatin1String(VARIABLE_TAG_START));
67  map.insert(QStringLiteral("closevariable"), QLatin1String(VARIABLE_TAG_END));
68  map.insert(QStringLiteral("openbrace"), QChar::fromLatin1('{'));
69  map.insert(QStringLiteral("closebrace"), QChar::fromLatin1('}'));
70  map.insert(QStringLiteral("opencomment"), QLatin1String(COMMENT_TAG_START));
71  map.insert(QStringLiteral("closecomment"), QLatin1String(COMMENT_TAG_END));
72  return map;
73 }
74 
75 bool TemplateTagNode::isKeyword(const QString &name)
76 {
77  static auto map = getKeywordMap();
78  return map.contains(name);
79 }
80 
82 {
83  Q_UNUSED(c)
84  static auto map = getKeywordMap();
85  (*stream) << map.value(m_name);
86 }
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
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
Node * getNode(const QString &tagContent, Parser *p) const override
Definition: templatetag.cpp:29
void render(OutputStream *stream, Context *c) const override
Definition: templatetag.cpp:81
TemplateTagNode(const QString &tagName, QObject *parent={})
Definition: templatetag.cpp:55