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author | René 'Necoro' Neumann <necoro@necoro.eu> | 2021-02-16 00:16:35 +0100 |
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committer | René 'Necoro' Neumann <necoro@necoro.eu> | 2021-02-16 00:16:35 +0100 |
commit | c2b6e7ff346e3373a4e33c946594bb6f08393ad3 (patch) | |
tree | 584016f7eda2672f8c25645d05cc3be9d9e9b999 /pkg/util/fixWriter.go | |
parent | 9d927b399e409990003b25efa8ca7395e9cad021 (diff) | |
download | feed2imap-go-c2b6e7ff346e3373a4e33c946594bb6f08393ad3.tar.gz feed2imap-go-c2b6e7ff346e3373a4e33c946594bb6f08393ad3.tar.bz2 feed2imap-go-c2b6e7ff346e3373a4e33c946594bb6f08393ad3.zip |
Issue #46: Move and rename writer; add comments
Diffstat (limited to 'pkg/util/fixWriter.go')
-rw-r--r-- | pkg/util/fixWriter.go | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/pkg/util/fixWriter.go b/pkg/util/fixWriter.go deleted file mode 100644 index d78b618..0000000 --- a/pkg/util/fixWriter.go +++ /dev/null @@ -1,63 +0,0 @@ -package util - -import "io" - -type fixWriter struct { - w io.Writer -} - -var lf = []byte{'\n'} -var cr = []byte{'\r'} - -func (f fixWriter) Write(p []byte) (n int, err error) { - crFound := false - start := 0 - - write := func(str []byte) { - var j int - j, err = f.w.Write(str) - n = n + j - } - - for idx, b := range p { - if crFound && b != '\n' { - // insert '\n' - if write(p[start:idx]); err != nil { - return - } - if write(lf); err != nil { - return - } - - start = idx - } else if !crFound && b == '\n' { - // insert '\r' - if write(p[start:idx]); err != nil { - return - } - if write(cr); err != nil { - return - } - - start = idx - } - crFound = b == '\r' - } - - // write the remainder - if write(p[start:]); err != nil { - return - } - - if crFound { // dangling \r - write(lf) - } - - return -} - -// Cyrus IMAP really cares about single \r and \n. -// Implement this fixer to change them into \r\n. -func FixWriter(w io.Writer) io.Writer { - return fixWriter{w} -} |