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lib/encoder: add CrLf encoding

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This commit is contained in:
Nick Craig-Wood 2019-09-20 23:04:31 +01:00
parent 6e053ecbd0
commit f55a99218c
3 changed files with 9183 additions and 8639 deletions
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38
lib/encoder/encoder.go
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@ -39,6 +39,7 @@ const (
EncodeSlash uint = 1 << iota // /
EncodeWin // :?"*<>|
EncodeBackSlash // \
EncodeCrLf // CR(0x0D), LF(0x0A)
EncodeHashPercent // #%
EncodeDel // DEL(0x7F)
EncodeCtl // CTRL(0x01-0x1F)
@ -86,6 +87,7 @@ func (mask MultiEncoder) Encode(in string) string {
encodeWin = uint(mask)&EncodeWin != 0
encodeSlash = uint(mask)&EncodeSlash != 0
encodeBackSlash = uint(mask)&EncodeBackSlash != 0
encodeCrLf = uint(mask)&EncodeCrLf != 0
encodeHashPercent = uint(mask)&EncodeHashPercent != 0
encodeDel = uint(mask)&EncodeDel != 0
encodeCtl = uint(mask)&EncodeCtl != 0
@ -202,6 +204,13 @@ func (mask MultiEncoder) Encode(in string) string {
return true
}
}
if encodeCrLf { // CR LF
switch r {
case rune(0x0D), rune(0x0A),
'␍', '␊':
return true
}
}
if encodeHashPercent { // #%
switch r {
case '#', '%',
@ -294,6 +303,17 @@ func (mask MultiEncoder) Encode(in string) string {
continue
}
}
if encodeCrLf { // CR LF
switch r {
case rune(0x0D), rune(0x0A):
out.WriteRune(r + symbolOffset)
continue
case '␍', '␊':
out.WriteRune(QuoteRune)
out.WriteRune(r)
continue
}
}
if encodeHashPercent { // #%
switch r {
case '#', '%':
@ -338,6 +358,7 @@ func (mask MultiEncoder) Decode(in string) string {
encodeWin = uint(mask)&EncodeWin != 0
encodeSlash = uint(mask)&EncodeSlash != 0
encodeBackSlash = uint(mask)&EncodeBackSlash != 0
encodeCrLf = uint(mask)&EncodeCrLf != 0
encodeHashPercent = uint(mask)&EncodeHashPercent != 0
encodeDel = uint(mask)&EncodeDel != 0
encodeCtl = uint(mask)&EncodeCtl != 0
@ -432,6 +453,12 @@ func (mask MultiEncoder) Decode(in string) string {
return true
}
}
if encodeCrLf { // CR LF
switch r {
case '␍', '␊':
return true
}
}
if encodeHashPercent { // #%
switch r {
case '＃', '％':
@ -521,6 +548,17 @@ func (mask MultiEncoder) Decode(in string) string {
continue
}
}
if encodeCrLf { // CR LF
switch r {
case '␍', '␊':
if unquote {
out.WriteRune(r)
} else {
out.WriteRune(r - symbolOffset)
}
continue
}
}
if encodeHashPercent { // #%
switch r {
case '＃', '％':