/daten/ahuesgen/projects/vhist/code/vhistlib/include/arglib/argfileparser.h

/* $HEADERS
 $Id: argfileparser.h 2179 2011-06-24 09:03:24Z ahuesgen $
 */

#ifndef ARGFILEPARSER_INCLUDED
#define ARGFILEPARSER_INCLUDED

#include "../shared/misc_defines.h"
#include "argfiletoken.h"

#include <QString>
#include <QStringList>
#include <QHash>

namespace vhist
{

typedef QHash<QString, QString> Environment;
typedef QList<ArgfileToken> TokenList;

class VHIST_EXTERN ArgfileParser
{
    public:
        ArgfileParser();
        ~ArgfileParser();
    
    public:
        QStringList parseArgfile(const QString& content,
                const Environment* env = NULL);
        TokenList getHighlighterList(const QString& content);
    
    private:
        TokenList splitIntoTokens(const QString& content);
        TokenList unescapeTokens(const TokenList& tokens);
        TokenList joinTokens(const TokenList& tokens);
        TokenList removeDoubleSeparators(const TokenList& tokens);
    
    private:
        QStringList findVariablesInToken(const ArgfileToken& token);
        QStringList findVariablesBackslashed(const ArgfileToken& token);
        QStringList findVariablesDoubleQuoted(const ArgfileToken& token);
        TokenList handleVariables(const TokenList& tokens,
                const Environment* env = NULL);
        
        ArgfileToken replaceVariables(const QStringList& list,
                const Environment* env);
        QString getVariableName(const QString& var);
        
        QString unescapeDoubleQuoted(const QString& text);
        QString unescapeSingleQuoted(const QString& text);
        QString unescapeBackslashed(const QString& text);
        QString escapeEverything(const QString& text);
        
        QStringList tokensToStrings(const TokenList& tokens);
};

}

#endif // ARGFILEPARSER_INCLUDED