1 /***************************************************************************
2  *   This file is part of the Lime Report project                          *
3  *   Copyright (C) 2015 by Alexander Arin                                  *
4  *   arin_a@bk.ru                                                          *
5  *                                                                         *
6  **                   GNU General Public License Usage                    **
7  *                                                                         *
8  *   This library is free software: you can redistribute it and/or modify  *
9  *   it under the terms of the GNU General Public License as published by  *
10  *   the Free Software Foundation, either version 3 of the License, or     *
11  *   (at your option) any later version.                                   *
12  *   You should have received a copy of the GNU General Public License     *
13  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
14  *                                                                         *
15  **                  GNU Lesser General Public License                    **
16  *                                                                         *
17  *   This library is free software: you can redistribute it and/or modify  *
18  *   it under the terms of the GNU Lesser General Public License as        *
19  *   published by the Free Software Foundation, either version 3 of the    *
20  *   License, or (at your option) any later version.                       *
21  *   You should have received a copy of the GNU Lesser General Public      *
22  *   License along with this library.                                      *
23  *   If not, see <http://www.gnu.org/licenses/>.                           *
24  *                                                                         *
25  *   This library is distributed in the hope that it will be useful,       *
26  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
27  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
28  *   GNU General Public License for more details.                          *
29  ****************************************************************************/
30 #ifndef LRSIMPLETAGPARSER_H
31 #define LRSIMPLETAGPARSER_H
32 
33 #include <QVector>
34 #include <QString>
35 #include <QStringList>
36 
37 namespace LimeReport{
38 
39 class Tag{
40 public:
Tag(QString text,int beginPos,int endPos)41     Tag(QString text,int beginPos,int endPos)
42         :m_tagText(text),m_beginPos(beginPos),m_endPos(endPos){}
Tag()43     Tag():m_tagText(""),m_beginPos(-1),m_endPos(-1){}
isValid()44     bool isValid(){return (!m_tagText.isEmpty())&&(m_beginPos>0)&&(m_endPos>0);}
tagText()45     QString tagText() const {return m_tagText;}
begin()46     int begin() const {return m_beginPos;}
end()47     int end() const {return m_endPos;}
48 private:
49     QString m_tagText;
50     int m_beginPos;
51     int m_endPos;
52 };
53 
54 class Symb{
55 public:
Symb(QString text,int pos)56     Symb(QString text, int pos):m_text(text),m_pos(pos){}
Symb()57     Symb():m_text(""),m_pos(-1){}
isValid()58     bool isValid(){return (!m_text.isEmpty())&&(m_pos>0);}
isTag()59     bool isTag(){return isValid()&&m_text.at(0)=='<';}
text()60     QString text(){return m_text;}
pos()61     int pos(){return m_pos;}
62 private:
63     QString m_text;
64     int m_pos;
65 };
66 
67 struct TagDiff{
68     enum Direction {
69         Inner=0,
70         Outer=1
71     };
72     Tag* tag;
73     Direction direction;
74 };
75 
76 class HtmlContext
77 {
78 public:
79     HtmlContext(QString html);
80     ~HtmlContext();
81     static QString extractWord(QString text,int index);
82     static QVector<TagDiff> tagVectDiff(QVector<Tag*> source, QVector<Tag*> dest);
83     static bool isVectorEqual(QVector<Tag*> source, QVector<Tag*> dest);
84     void fillTagVector(QString html);
85     QString extendTextByTags(QString text, int pos);
86     QVector<Tag *> tagsAt(int pos);
87     Symb symbAt(int pos);
88     void clearTags();
89     void clearSymbs();
90 private:
91     static QString parseTag(QVector<Tag*>& storage,QString text,int& curPos, bool createTag=true);
92     void parseSymbs(QString text);
93     void initSymbPatterns();
94 private:
95     QVector<Tag*> m_tags;
96     QVector<Symb*> m_symbs;
97     QStringList m_symbPatterns;
98 };
99 }
100 #endif // LRSIMPLETAGPARSER_H
101