/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

 *   with this work for additional information regarding copyright

 *   ownership. The ASF licenses this file to you under the Apache

 *   License, Version 2.0 (the "License"); you may not use this file

 *   except in compliance with the License. You may obtain a copy of

 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .

 */

#include <comphelper/string.hxx>

#include <svtools/parhtml.hxx>

#include <svtools/htmltokn.h>

#include <svtools/htmlkywd.hxx>

#include <tools/urlobj.hxx>

// Table for converting option values into strings

HTMLOptionEnum<HTMLScriptLanguage> const aScriptLangOptEnums[] =

{

    { OOO_STRING_SVTOOLS_HTML_LG_starbasic,    HTMLScriptLanguage::StarBasic     },

    { OOO_STRING_SVTOOLS_HTML_LG_javascript,   HTMLScriptLanguage::JavaScript    },

    { OOO_STRING_SVTOOLS_HTML_LG_javascript11, HTMLScriptLanguage::JavaScript    },

    { OOO_STRING_SVTOOLS_HTML_LG_livescript,   HTMLScriptLanguage::JavaScript    },

    { nullptr,                                 HTMLScriptLanguage(0) }

};

void HTMLParser::ParseScriptOptions( OUString& rLangString, std::u16string_view rBaseURL,

                                     HTMLScriptLanguage& rLang,

                                     OUString& rSrc,

                                     OUString& rLibrary,

                                     OUString& rModule )

{

    const HTMLOptions& aScriptOptions = GetOptions();

    rLangString.clear();

    rLang = HTMLScriptLanguage::JavaScript;

    rSrc.clear();

    rLibrary.clear();

    rModule.clear();

    for( size_t i = aScriptOptions.size(); i; )

    {

        const HTMLOption& aOption = aScriptOptions[--i];

        switch( aOption.GetToken() )

        {

        case HtmlOptionId::LANGUAGE:

            {

                rLangString = aOption.GetString();

                HTMLScriptLanguage nLang;

                if( aOption.GetEnum( nLang, aScriptLangOptEnums ) )

                    rLang = nLang;

                else

                    rLang = HTMLScriptLanguage::Unknown;

            }

            break;

        case HtmlOptionId::SRC:

            rSrc = INetURLObject::GetAbsURL( rBaseURL, aOption.GetString() );

            break;

        case HtmlOptionId::SDLIBRARY:

            rLibrary = aOption.GetString();

            break;

        case HtmlOptionId::SDMODULE:

            rModule = aOption.GetString();

            break;

        default: break;

        }

    }

}

void HTMLParser::RemoveSGMLComment( OUString &rString )

{

    sal_Unicode c = 0;

    sal_Int32 idx = 0;

    while (idx < rString.getLength())

    {

        c = rString[idx];

        if (!( c==' ' || c=='\t' || c=='\r' || c=='\n' ) )

            break;

        idx++;

    }

    if (idx)

        rString = rString.copy( idx );

    idx = rString.getLength() - 1;

    while (idx > 0)

        // Can never get to 0 because that would mean the string contains only whitespace, and the first

        // loop would already have removed all of those.

    {

        c = rString[idx];

        if (!( c==' ' || c=='\t' || c=='\r' || c=='\n' ) )

            break;

        idx--;

    }

    if (idx != rString.getLength() - 1)

        rString = rString.copy( 0, idx + 1 );

    // remove SGML comments

    if( rString.startsWith( "<!--" ) )

    {

        // the whole line

        sal_Int32 nPos = 4;

        while( nPos < rString.getLength() )

        {

            c = rString[nPos];

            if (c == '\r' || c == '\n')

                break;

            ++nPos;

        }

        if( c == '\r' && nPos+1 < rString.getLength() &&

            '\n' == rString[nPos+1] )

            ++nPos;

        else if( c != '\n' )

            nPos = 3;

        ++nPos;

        rString = rString.copy( nPos );

    }

    if( !rString.endsWith("-->") )

        return;

    rString = rString.copy( 0, rString.getLength()-3 );

    // "//" or "'", maybe preceding CR/LF

    rString = comphelper::string::stripEnd(rString, ' ');

    sal_Int32 nDel = 0, nLen = rString.getLength();

    if( nLen >= 2 &&

        rString.endsWith("//") )

    {

        nDel = 2;

    }

    else if( nLen && '\'' == rString[nLen-1] )

    {

        nDel = 1;

    }

    if( nDel && nLen >= nDel+1 )

    {

        c = rString[nLen-(nDel+1)];

        if( '\r'==c || '\n'==c )

        {

            nDel++;

            if( '\n'==c && nLen >= nDel+1 &&

                '\r'==rString[nLen-(nDel+1)] )

                nDel++;

        }

    }

    rString = rString.copy( 0, nLen-nDel );

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */