Merge branch 'master' into fruitiex/gamemode_freezetag

[xonotic/xonotic-data.pk3dir.git] / qcsrc / common / util.qc

diff --git a/qcsrc/common/util.qc b/qcsrc/common/util.qc
index 2618d09fd69bca0bf4cea60ddf05918a8c5ccd3f..85f2e0c47d299e4189275617a03055c61afc0f4c 100644 (file)
--- a/qcsrc/common/util.qc
+++ b/qcsrc/common/util.qc
@@ -1941,3 +1941,54 @@ vector NearestPointOnBox(entity box, vector org)
        return nearest;
 }
 #endif
+
+float vercmp_recursive(string v1, string v2)
+{
+       float dot1, dot2;
+       string s1, s2;
+       float r;
+
+       dot1 = strstrofs(v1, ".", 0);
+       dot2 = strstrofs(v2, ".", 0);
+       if(dot1 == -1)
+               s1 = v1;
+       else
+               s1 = substring(v1, 0, dot1);
+       if(dot2 == -1)
+               s2 = v2;
+       else
+               s2 = substring(v2, 0, dot2);
+
+       r = stof(s1) - stof(s2);
+       if(r != 0)
+               return r;
+
+       r = strcasecmp(s1, s2);
+       if(r != 0)
+               return r;
+
+       if(dot1 == -1)
+               if(dot2 == -1)
+                       return 0;
+               else
+                       return -1;
+       else
+               if(dot2 == -1)
+                       return 1;
+               else
+                       return vercmp_recursive(substring(v1, dot1 + 1, 999), substring(v2, dot2 + 1, 999));
+}
+
+float vercmp(string v1, string v2)
+{
+       if(strcasecmp(v1, v2) == 0) // early out check
+               return 0;
+
+       // "git" beats all
+       if(v1 == "git")
+               return 1;
+       if(v2 == "git")
+               return -1;
+
+       return vercmp_recursive(v1, v2);
+}