Initial commit

engines/ags/shared/util/version.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "common/util.h"
+#include "ags/shared/util/version.h"
+
+namespace AGS3 {
+namespace AGS {
+namespace Shared {
+
+Version::Version()
+	: Major(0)
+	, Minor(0)
+	, Release(0)
+	, Revision(0) {
+	MakeString();
+}
+
+Version::Version(int32_t major, int32_t minor, int32_t release)
+	: Major(major)
+	, Minor(minor)
+	, Release(release)
+	, Revision(0) {
+	MakeString();
+}
+
+Version::Version(int32_t major, int32_t minor, int32_t release, int32_t revision)
+	: Major(major)
+	, Minor(minor)
+	, Release(release)
+	, Revision(revision) {
+	MakeString();
+}
+
+Version::Version(int32_t major, int32_t minor, int32_t release, int32_t revision, const String &special)
+	: Major(major)
+	, Minor(minor)
+	, Release(release)
+	, Revision(revision)
+	, Special(special) {
+	MakeString();
+}
+
+Version::Version(int32_t major, int32_t minor, int32_t release, int32_t revision, const String &special, const String &build_info)
+	: Major(major)
+	, Minor(minor)
+	, Release(release)
+	, Revision(revision)
+	, Special(special)
+	, BuildInfo(build_info) {
+	MakeString();
+}
+
+Version::Version(const String &version_string)
+	: Major(0)
+	, Minor(0)
+	, Release(0)
+	, Revision(0) {
+	SetFromString(version_string);
+}
+
+void Version::SetFromString(const String &version_string) {
+	Major = version_string.LeftSection('.').ToInt();
+	String second_section = version_string.Section('.', 1, 1);
+	Minor = second_section.ToInt();
+	String third_section = version_string.Section('.', 2, 2);
+	String fourth_section = version_string.Section('.', 3, 3);
+	String revision_section;
+
+	bool old_version_format = Major < 3 || fourth_section.IsEmpty();
+	if (old_version_format) {
+		if (second_section.GetLength() > 1) {
+			Release = Minor % 10;
+			Minor /= 10;
+		} else {
+			Release = 0;
+		}
+		revision_section = third_section;
+	} else {
+		Release = third_section.ToInt();
+		revision_section = fourth_section;
+	}
+
+	int revision_length = 0;
+	if (!revision_section.IsEmpty()) {
+		const char *seek_ptr = revision_section.GetCStr();
+		const char *end_ptr = revision_section.GetCStr() + revision_section.GetLength();
+		while (seek_ptr != end_ptr) {
+			if (!Common::isDigit(*seek_ptr)) {
+				break;
+			}
+			revision_length++;
+			seek_ptr++;
+		}
+	}
+
+	Revision = revision_section.Left(revision_length).ToInt();
+	// In old version format a special tag was added right after revision digits.
+	// In new version format a special tag is separated from revision digits with single space char.
+	Special = revision_section.Mid(revision_length + (old_version_format ? 0 : 1));
+
+	MakeString();
+}
+
+void Version::MakeString() {
+	if (Special.IsEmpty()) {
+		LongString.Format("%d.%d.%d.%d", Major, Minor, Release, Revision);
+	} else {
+		LongString.Format("%d.%d.%d.%d %s", Major, Minor, Release, Revision, Special.GetCStr());
+	}
+	BackwardCompatibleString.Format("%d.%02d.%d%s", Major, Minor * 10 + Release, Revision, Special.GetCStr());
+	ShortString.Format("%d.%d", Major, Minor);
+}
+
+} // namespace Shared
+} // namespace AGS
+} // namespace AGS3