Backport #4489 ยป parse.y.patch
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if (rb_memcicmp(name + nlen + 1, "unix", 4) == 0)
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return nlen;
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}
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if (len > 4 && name[nlen = len - 5] == '-') {
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if (len > 4 && name[nlen = len - 4] == '-') {
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if (rb_memcicmp(name + nlen + 1, "dos", 3) == 0)
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return nlen;
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if (rb_memcicmp(name + nlen + 1, "mac", 3) == 0)
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if (rb_memcicmp(name + nlen + 1, "mac", 3) == 0 &&
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!(len == 8 && rb_memcicmp(name, "utf8-mac", len) == 0) &&
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!(len == 9 && rb_memcicmp(name, "utf-8-mac", len) == 0))
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return nlen;
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}
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return len;
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