mirror of
https://github.com/mjl-/mox.git
synced 2024-12-26 08:23:48 +03:00
72ac1fde29
- prometheus is now behind an interface, they aren't dependencies for the reusable components anymore. - some dependencies have been inverted: instead of packages importing a main package to get configuration, the main package now sets configuration in these packages. that means fewer internals are pulled in. - some functions now have new parameters for values that were retrieved from package "mox-".
27 lines
695 B
Go
27 lines
695 B
Go
package message
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import (
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"io"
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"strings"
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"golang.org/x/text/encoding/ianaindex"
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)
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// DecodeReader returns a reader that reads from r, decoding as charset. If
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// charset is empty, us-ascii, utf-8 or unknown, the original reader is
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// returned and no decoding takes place.
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func DecodeReader(charset string, r io.Reader) io.Reader {
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switch strings.ToLower(charset) {
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case "", "us-ascii", "utf-8":
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return r
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}
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enc, _ := ianaindex.MIME.Encoding(charset)
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if enc == nil {
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enc, _ = ianaindex.IANA.Encoding(charset)
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}
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// todo: ianaindex doesn't know all encodings, e.g. gb2312. should we transform them, with which code?
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if enc == nil {
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return r
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}
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return enc.NewDecoder().Reader(r)
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}
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