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134 lines
3.7 KiB
134 lines
3.7 KiB
15 years ago
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/***************************************************************************
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copyright : (C) 2005-2006 by Robby Stephenson
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email : robby@periapsis.org
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of version 2 of the GNU General Public License as *
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* published by the Free Software Foundation; *
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* *
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***************************************************************************/
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#include "upcvalidator.h"
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#include "isbnvalidator.h"
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#include <kmdcodec.h>
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using Tellico::UPCValidator;
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UPCValidator::UPCValidator(QObject* parent_, const char* name_/*=0*/)
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: QValidator(parent_, name_), m_checkISBN(false) {
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}
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QValidator::State UPCValidator::validate(QString& input_, int& pos_) const {
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// check if it's a cuecat first
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State catState = decodeCat(input_);
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if(catState == Acceptable) {
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pos_ = input_.length();
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return catState;
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}
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// no spaces allowed
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if(input_.contains(' ')) {
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return QValidator::Invalid;
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}
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// no real checking, just if starts with 978, use isbnvalidator
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const uint len = input_.length();
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if(len < 10) {
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m_isbn = false;
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}
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if(!m_checkISBN || (!m_isbn && len < 13)) {
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return QValidator::Intermediate;
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}
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// once it gets converted to an ISBN, remember that, and use it for later
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if(input_.startsWith(QString::fromLatin1("978")) || input_.startsWith(QString::fromLatin1("979"))) {
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ISBNValidator val(0);
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QValidator::State s = val.validate(input_, pos_);
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if(s == QValidator::Acceptable) {
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m_isbn = true;
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// bad hack
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UPCValidator* that = const_cast<UPCValidator*>(this);
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that->signalISBN();
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}
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return s;
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}
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return QValidator::Intermediate;
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}
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void UPCValidator::fixup(QString& input_) const {
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if(input_.isEmpty()) {
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return;
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}
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input_ = input_.stripWhiteSpace();
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int pos = input_.find(' ');
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if(pos > -1) {
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input_ = input_.left(pos);
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}
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if(!m_checkISBN) {
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return;
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}
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const uint len = input_.length();
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if(len > 12 && (input_.startsWith(QString::fromLatin1("978")) || input_.startsWith(QString::fromLatin1("979")))) {
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QString s = input_;
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ISBNValidator val(0);
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int p = 0;
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int state = val.validate(s, p);
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if(state == QValidator::Acceptable) {
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// bad hack
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UPCValidator* that = const_cast<UPCValidator*>(this);
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that->signalISBN();
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input_ = s;
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}
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}
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}
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QValidator::State UPCValidator::decodeCat(QString& input_) const {
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if(input_.length() < 3) {
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return Intermediate;
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}
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if(!input_.startsWith(QString::fromLatin1(".C3"))) { // all cuecat codes start with .C3
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return Invalid;
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}
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const int periods = input_.contains('.');
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if(periods < 4) {
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return Intermediate; // not enough yet
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} else if(periods > 4) {
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return Invalid;
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}
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// ok, let's have a go, take the third token
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QString code = QStringList::split('.', input_)[2];
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while(code.length() % 4 > 0) {
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code += '=';
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}
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for(uint i = 0; i < code.length(); ++i) {
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if(code[i] >= 'A' && code[i] <= 'Z') {
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code.replace(i, 1, code[i].lower());
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} else if(code[i] >= 'a' && code[i] <= 'z') {
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code.replace(i, 1, code[i].upper());
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}
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}
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code = QString::fromLatin1(KCodecs::base64Decode(code.latin1()));
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for(uint i = 0; i < code.length(); ++i) {
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char c = code[i].latin1() ^ 'C';
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code.replace(i, 1, c);
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}
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input_ = code;
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return Acceptable;
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}
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#include "upcvalidator.moc"
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