okular/part/url_utils.h
2021-06-10 08:11:56 +00:00

39 lines
1 KiB
C++

/*
SPDX-FileCopyrightText: 2013 Jaydeep Solanki <jaydp17@gmail.com>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef URL_UTILS_H
#define URL_UTILS_H
#include <QRegularExpression>
namespace UrlUtils
{
QString getUrl(QString txt)
{
// match the url
QRegularExpression reg(QStringLiteral("\\b((https?|ftp)://(www\\d{0,3}[.])?[\\S]+)|((www\\d{0,3}[.])[\\S]+)"));
// blocks from detecting invalid urls
QRegularExpression reg1(QStringLiteral("[\\w'\"\\(\\)]+https?://|[\\w'\"\\(\\)]+ftp://|[\\w'\"\\(\\)]+www\\d{0,3}[.]"));
txt = txt.remove(QLatin1Char('\n'));
if (reg1.match(txt).hasMatch()) { // return early if there is a match (url is not valid)
return QString();
}
QRegularExpressionMatch match = reg.match(txt);
QString url = match.captured();
if (match.hasMatch() && QUrl(url).isValid()) {
if (url.startsWith(QLatin1String("www"))) {
url.prepend(QLatin1String("http://"));
}
return url;
}
return QString();
}
}
#endif