OrganizeFormat: Move to own classes

src/organize/organizeformatvalidator.cpp

@@ -0,0 +1,66 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2010, David Sansome <me@davidsansome.com>
+ * Copyright 2018-2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry 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, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry 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 Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <QString>
+#include <QRegularExpression>
+
+#include "organizeformat.h"
+#include "organizeformatvalidator.h"
+
+OrganizeFormatValidator::OrganizeFormatValidator(QObject *parent) : QValidator(parent) {}
+
+QValidator::State OrganizeFormatValidator::validate(QString &input, int &_pos) const {
+
+  Q_UNUSED(_pos)
+
+  // Make sure all the blocks match up
+  int block_level = 0;
+  for (int i = 0; i < input.length(); ++i) {
+    if (input[i] == QLatin1Char('{')) {
+      ++block_level;
+    }
+    else if (input[i] == QLatin1Char('}')) {
+      --block_level;
+    }
+
+    if (block_level < 0 || block_level > 1) {
+      return QValidator::Invalid;
+    }
+  }
+
+  if (block_level != 0) return QValidator::Invalid;
+
+  // Make sure the tags are valid
+  static const QRegularExpression tag_regexp(QString::fromLatin1(OrganizeFormat::kTagPattern));
+  QRegularExpressionMatch re_match;
+  qint64 pos = 0;
+  for (re_match = tag_regexp.match(input, pos); re_match.hasMatch(); re_match = tag_regexp.match(input, pos)) {
+    pos = re_match.capturedStart();
+    if (!OrganizeFormat::kKnownTags.contains(re_match.captured(1))) {
+      return QValidator::Invalid;
+    }
+
+    pos += re_match.capturedLength();
+  }
+
+  return QValidator::Acceptable;
+
+}