xml-copy-editor-code/src/casehandler.cpp

/* 
 * Copyright 2005-2007 Gerald Schmidt.
 * 
 * This file is part of Xml Copy Editor.
 * 
 * Xml Copy Editor is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 * 
 * Xml Copy Editor is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Xml Copy Editor; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include <string>
#include "casehandler.h"

CaseHandler::CaseHandler()
{ }

CaseHandler::~CaseHandler()
{ }

void CaseHandler::adjustCase ( string &buffer, string &comparison )
{
    string::iterator it;
    int countBuffer;
    bool initialCapital;

    countBuffer = 0;
    initialCapital = false;

    // preserve all caps
    for ( it = buffer.begin(); it != buffer.end(); ++it )
        if ( isalpha ( *it ) && isupper ( *it ) )
            ++countBuffer;

    if ( countBuffer > 2 )
    {
        for ( it = buffer.begin(); it != buffer.end(); ++it )
            if ( isalpha ( *it ) )
                *it = toupper ( *it );
        return;
    }

    // preserve initial capital
    it = comparison.begin();
    if ( isalpha ( *it ) && isupper ( *it ) )
        initialCapital = true;

    for ( ++it; it != comparison.end(); ++it )
        if ( isalpha ( *it ) && isupper ( *it ) )
            return;

    if ( initialCapital )
    {
        it = buffer.begin();
        if ( isalpha ( *it ) )
            *it = toupper ( *it );
        for ( ++it; it != buffer.end(); ++it )
            if ( isalpha ( *it ) && isupper ( *it ) )
                *it = tolower ( *it );
    }
}

string CaseHandler::lowerCase ( string &s )
{
    string::iterator it;
    string localString ( s );
    for (
        it = localString.begin();
        it != localString.end();
        it++ )
    {
        if ( *it < 0 )
            continue;
        *it = tolower ( *it );
    }
    return localString;
}