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27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_desktop.hxx"
30 
31 #include "sal/config.h"
32 
33 #include "com/sun/star/deployment/XPackage.hpp"
34 #include "rtl/ustring.hxx"
35 
36 #include "dp_version.hxx"
37 
38 namespace {
39 
40 namespace css = ::com::sun::star;
41 
42 ::rtl::OUString getElement(::rtl::OUString const & version, ::sal_Int32 * index)
43 {
44     while (*index < version.getLength() && version[*index] == '0') {
45         ++*index;
46     }
47     return version.getToken(0, '.', *index);
48 }
49 
50 }
51 
52 namespace dp_misc {
53 
54 ::dp_misc::Order compareVersions(
55     ::rtl::OUString const & version1, ::rtl::OUString const & version2)
56 {
57     for (::sal_Int32 i1 = 0, i2 = 0; i1 >= 0 || i2 >= 0;) {
58         ::rtl::OUString e1(getElement(version1, &i1));
59         ::rtl::OUString e2(getElement(version2, &i2));
60         if (e1.getLength() < e2.getLength()) {
61             return ::dp_misc::LESS;
62         } else if (e1.getLength() > e2.getLength()) {
63             return ::dp_misc::GREATER;
64         } else if (e1 < e2) {
65             return ::dp_misc::LESS;
66         } else if (e1 > e2) {
67             return ::dp_misc::GREATER;
68         }
69     }
70     return ::dp_misc::EQUAL;
71 }
72 
73 
74 }
75