autoupdater: consider end of string smaller than all characters except for '~'
This fixes ordering for the following patterns:
* 1.0 < 1.0a
* 1.0a < 1.0ab
* 1.0a < 1.0a1
Note that trailing zeros are still ignored (1.0 == 1., 1test0 == 1test),
which matches the behaviour of dpkg and opkg.
(cherry picked from commit 30be52e03b
)
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@ -34,8 +34,10 @@ static int char_order(char c) {
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return 0;
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else if (isalpha(c))
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return c;
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else if (c == '~')
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else if (c == '\0')
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return -1;
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else if (c == '~')
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return -2;
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else
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return c + 256;
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}
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