/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1998--2011 Jan Nieuwenhuizen <janneke@gnu.org>
+ Copyright (C) 1998--2015 Jan Nieuwenhuizen <janneke@gnu.org>
LilyPond is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
patch_ = patch;
}
-Lilypond_version::Lilypond_version (string str)
+Lilypond_version::Lilypond_version (const string &str)
{
- major_ = 0;
+ major_ = -1;
minor_ = 0;
patch_ = 0;
vector<string> version;
+ const char *digits = "0123456789";
version = string_split (str, '.');
- if (version.size () > 0 && isdigit (version[0][0]))
- major_ = String_convert::dec2int (version[0]);
- if (version.size () > 1 && isdigit (version[1][0]))
- minor_ = String_convert::dec2int (version[1]);
-
- patch_ = 0;
- if (version.size () >= 3
- && isdigit (version[2][0]))
- patch_ = String_convert::dec2int (version[2]);
-
- if (version.size () >= 4)
+ switch (version.size ()) {
+ case 4:
extra_patch_string_ = version[3];
+ if (version[2].empty ())
+ return;
+ case 3:
+ if (version[2].find_first_not_of (digits) != string::npos
+ || version[1].empty ())
+ return;
+ patch_ = String_convert::dec2int (version[2]);
+ case 2:
+ if (version[1].find_first_not_of (digits) != string::npos
+ || version[1].empty () || version[0].empty ())
+ return;
+ minor_ = String_convert::dec2int (version[1]);
+ if (version[0].find_first_not_of (digits) != string::npos)
+ return;
+ major_ = String_convert::dec2int (version[0]);
+ }
}
string
Lilypond_version::to_string () const
{
+ if (major_ < 0)
+ return "invalid";
return ::to_string (major_)
+ "." + ::to_string (minor_)
+ "." + ::to_string (patch_);
}
-Lilypond_version::operator int () const
+Lilypond_version::operator bool () const
{
- // ugh
- return 100000 * major_ + 1000 * minor_ + patch_;
+ return !(major_ < 0);
}
+int
+Lilypond_version::compare (const Lilypond_version &a, const Lilypond_version &b)
+{
+ if (!a || !b)
+ return 0;
+ if (a.major_ != b.major_)
+ return a.major_ > b.major_ ? 1 : -1;
+ if (a.minor_ != b.minor_)
+ return a.minor_ > b.minor_ ? 1 : -1;
+ if (a.patch_ != b.patch_)
+ return a.patch_ > b.patch_ ? 1 : -1;
+ return 0;
+}