Line data    Source code

       1             : // Snap Websites Servers -- handle messages for QXmlQuery
       2             : // Copyright (c) 2014-2019  Made to Order Software Corp.  All Rights Reserved
       3             : //
       4             : // This program is free software; you can redistribute it and/or modify
       5             : // it under the terms of the GNU General Public License as published by
       6             : // the Free Software Foundation; either version 2 of the License, or
       7             : // (at your option) any later version.
       8             : //
       9             : // This program is distributed in the hope that it will be useful,
      10             : // but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12             : // GNU General Public License for more details.
      13             : //
      14             : // You should have received a copy of the GNU General Public License
      15             : // along with this program; if not, write to the Free Software
      16             : // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
      17             : #pragma once
      18             : 
      19             : #include "snapwebsites/snap_exception.h"
      20             : 
      21             : #include <QDomDocument>
      22             : #include <QVariant>
      23             : #include <QMap>
      24             : 
      25             : namespace snap
      26             : {
      27             : 
      28           0 : class xslt_exception : public snap_exception
      29             : {
      30             : public:
      31           0 :     explicit xslt_exception(char const *        what_msg) : snap_exception("xslt", what_msg) {}
      32             :     explicit xslt_exception(std::string const & what_msg) : snap_exception("xslt", what_msg) {}
      33           0 :     explicit xslt_exception(QString const &     what_msg) : snap_exception("xslt", what_msg) {}
      34             : };
      35             : 
      36           0 : class xslt_initialization_error : public xslt_exception
      37             : {
      38             : public:
      39             :     explicit xslt_initialization_error(char const *        whatmsg) : xslt_exception(whatmsg) {}
      40             :     explicit xslt_initialization_error(std::string const & whatmsg) : xslt_exception(whatmsg) {}
      41           0 :     explicit xslt_initialization_error(QString const &     whatmsg) : xslt_exception(whatmsg) {}
      42             : };
      43             : 
      44           0 : class xslt_evaluation_error : public xslt_exception
      45             : {
      46             : public:
      47           0 :     explicit xslt_evaluation_error(char const *        whatmsg) : xslt_exception(whatmsg) {}
      48             :     explicit xslt_evaluation_error(std::string const & whatmsg) : xslt_exception(whatmsg) {}
      49             :     explicit xslt_evaluation_error(QString const &     whatmsg) : xslt_exception(whatmsg) {}
      50             : };
      51             : 
      52             : 
      53             : 
      54             : class xslt
      55             : {
      56             : public:
      57             :     void                    set_xsl(QString const & xsl);
      58             :     void                    set_xsl(QDomDocument const & xsl);
      59             :     void                    set_xsl_from_file(QString const & filename);
      60             :     void                    set_document(QString const & doc);
      61             :     void                    set_document(QDomDocument & doc);
      62             :     void                    add_variable(QString const & name, QVariant const & value);
      63             :     void                    clear_variables();
      64             : 
      65             :     QString                 evaluate_to_string();
      66             :     void                    evaluate_to_document(QDomDocument & output);
      67             : 
      68             :     static QString          filter_entities_out(QString const & html);
      69             :     static QString          convert_entity(QString const & entity_name);
      70             : 
      71             : private:
      72             :     void                    evaluate(QString * output_string, QDomDocument * output_document);
      73             : 
      74             :     QString                 f_xsl = QString();
      75             :     QString                 f_input = QString(); // document as a string
      76             :     QMap<QString, QVariant> f_variables = {};
      77             :     QDomDocument            f_doc = QDomDocument();
      78             : };
      79             : 
      80             : } // namespace snap
      81             : // vim: ts=4 sw=4 et