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/***************************************************************************
copyright : (C) 2005-2006 by Robby Stephenson
email : robby@periapsis.org
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of version 2 of the GNU General Public License as *
* published by the Free Software Foundation; *
* *
***************************************************************************/
#include "upcvalidator.h"
#include "isbnvalidator.h"
#include <kmdcodec.h>
using Tellico::UPCValidator;
UPCValidator::UPCValidator(TQObject* tqparent_, const char* name_/*=0*/)
: TQValidator(tqparent_, name_), m_checkISBN(false) {
}
TQValidator::State UPCValidator::validate(TQString& input_, int& pos_) const {
// check if it's a cuecat first
State catState = decodeCat(input_);
if(catState == Acceptable) {
pos_ = input_.length();
return catState;
}
// no spaces allowed
if(input_.tqcontains(' ')) {
return TQValidator::Invalid;
}
// no real checking, just if starts with 978, use isbnvalidator
const uint len = input_.length();
if(len < 10) {
m_isbn = false;
}
if(!m_checkISBN || (!m_isbn && len < 13)) {
return TQValidator::Intermediate;
}
// once it gets converted to an ISBN, remember that, and use it for later
if(input_.startsWith(TQString::tqfromLatin1("978")) || input_.startsWith(TQString::tqfromLatin1("979"))) {
ISBNValidator val(0);
TQValidator::State s = val.validate(input_, pos_);
if(s == TQValidator::Acceptable) {
m_isbn = true;
// bad hack
UPCValidator* that = const_cast<UPCValidator*>(this);
that->signalISBN();
}
return s;
}
return TQValidator::Intermediate;
}
void UPCValidator::fixup(TQString& input_) const {
if(input_.isEmpty()) {
return;
}
input_ = input_.stripWhiteSpace();
int pos = input_.tqfind(' ');
if(pos > -1) {
input_ = input_.left(pos);
}
if(!m_checkISBN) {
return;
}
const uint len = input_.length();
if(len > 12 && (input_.startsWith(TQString::tqfromLatin1("978")) || input_.startsWith(TQString::tqfromLatin1("979")))) {
TQString s = input_;
ISBNValidator val(0);
int p = 0;
int state = val.validate(s, p);
if(state == TQValidator::Acceptable) {
// bad hack
UPCValidator* that = const_cast<UPCValidator*>(this);
that->signalISBN();
input_ = s;
}
}
}
TQValidator::State UPCValidator::decodeCat(TQString& input_) const {
if(input_.length() < 3) {
return Intermediate;
}
if(!input_.startsWith(TQString::tqfromLatin1(".C3"))) { // all cuecat codes start with .C3
return Invalid;
}
const int periods = input_.tqcontains('.');
if(periods < 4) {
return Intermediate; // not enough yet
} else if(periods > 4) {
return Invalid;
}
// ok, let's have a go, take the third token
TQString code = TQStringList::split('.', input_)[2];
while(code.length() % 4 > 0) {
code += '=';
}
for(uint i = 0; i < code.length(); ++i) {
if(code[i] >= 'A' && code[i] <= 'Z') {
code.tqreplace(i, 1, code[i].lower());
} else if(code[i] >= 'a' && code[i] <= 'z') {
code.tqreplace(i, 1, code[i].upper());
}
}
code = TQString::tqfromLatin1(KCodecs::base64Decode(TQCString(code.latin1())));
for(uint i = 0; i < code.length(); ++i) {
char c = code[i].latin1() ^ 'C';
code.tqreplace(i, 1, c);
}
input_ = code;
return Acceptable;
}
#include "upcvalidator.moc"
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