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/* Copyright 2011-2014 Yorba Foundation
*
* This software is licensed under the GNU Lesser General Public License
* (version 2.1 or later). See the COPYING file in this distribution.
*/
namespace Utils {
/**
* A class that represents a version number in the form x.y.z and is able to compare
* different versions.
*/
public class VersionNumber : Object, Gee.Comparable<VersionNumber> {
private int[] version;
public VersionNumber(int[] version) {
this.version = version;
}
public VersionNumber.from_string(string str_version, string separator = ".") {
string[] version_items = str_version.split(separator);
this.version = new int[version_items.length];
for (int i = 0; i < version_items.length; i++)
this.version[i] = int.parse(version_items[i]);
}
public string to_string() {
string[] version_items = new string[this.version.length];
for (int i = 0; i < this.version.length; i++)
version_items[i] = this.version[i].to_string();
return string.joinv(".", version_items);
}
public int compare_to(VersionNumber other) {
int max_len = ((this.version.length > other.version.length) ?
this.version.length : other.version.length);
int res = 0;
for(int i = 0; i < max_len; i++) {
int this_v = (i < this.version.length ? this.version[i] : 0);
int other_v = (i < other.version.length ? other.version[i] : 0);
res = this_v - other_v;
if (res != 0)
break;
}
return res;
}
}
}
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