diff options
Diffstat (limited to 'src/pkg/encoding/git85/git.go')
| -rw-r--r-- | src/pkg/encoding/git85/git.go | 85 |
1 files changed, 42 insertions, 43 deletions
diff --git a/src/pkg/encoding/git85/git.go b/src/pkg/encoding/git85/git.go index 1ee4c9c91..51e4654dd 100644 --- a/src/pkg/encoding/git85/git.go +++ b/src/pkg/encoding/git85/git.go @@ -24,20 +24,20 @@ const encode = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!# // The decodings are 1+ the actual value, so that the // default zero value can be used to mean "not valid". var decode = [256]uint8{ - '0': 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, - 'A': 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, - 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, - 'a': 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, - 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, - '!': 63, - '#': 64, 65, 66, 67, - '(': 68, 69, 70, 71, - '-': 72, - ';': 73, - '<': 74, 75, 76, 77, - '@': 78, - '^': 79, 80, 81, - '{': 82, 83, 84, 85 + '0': 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, + 'A': 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, + 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, + 'a': 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, + 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, + '!': 63, + '#': 64, 65, 66, 67, + '(': 68, 69, 70, 71, + '-': 72, + ';': 73, + '<': 74, 75, 76, 77, + '@': 78, + '^': 79, 80, 81, + '{': 82, 83, 84, 85, } // Encode encodes src into EncodedLen(len(src)) @@ -56,15 +56,15 @@ func Encode(dst, src []byte) int { n = 52; } if n <= 27 { - dst[ndst] = byte('A' + n - 1); + dst[ndst] = byte('A'+n-1); } else { - dst[ndst] = byte('a' + n - 26 - 1); + dst[ndst] = byte('a'+n-26-1); } ndst++; for i := 0; i < n; i += 4 { var v uint32; for j := 0; j < 4 && i+j < n; j++ { - v |= uint32(src[i+j]) << uint(24 - j*8); + v |= uint32(src[i+j])<<uint(24 - j*8); } for j := 4; j >= 0; j-- { dst[ndst+j] = encode[v%85]; @@ -103,9 +103,9 @@ func Decode(dst, src []byte) (n int, err os.Error) { var l int; switch ch := int(src[nsrc]); { case 'A' <= ch && ch <= 'Z': - l = ch - 'A' + 1; + l = ch-'A'+1; case 'a' <= ch && ch <= 'z': - l = ch - 'a' + 26 + 1; + l = ch-'a'+26+1; default: return ndst, CorruptInputError(nsrc); } @@ -116,7 +116,7 @@ func Decode(dst, src []byte) (n int, err os.Error) { if nsrc+1+el+1 > len(src) || src[nsrc+1+el] != '\n' { return ndst, CorruptInputError(nsrc); } - line := src[nsrc+1:nsrc+1+el]; + line := src[nsrc+1 : nsrc+1+el]; for i := 0; i < el; i += 5 { var v uint32; for j := 0; j < 5; j++ { @@ -156,12 +156,12 @@ func NewEncoder(w io.Writer) io.WriteCloser { } type encoder struct { - w io.Writer; - err os.Error; - buf [52]byte; - nbuf int; - out [1024]byte; - nout int; + w io.Writer; + err os.Error; + buf [52]byte; + nbuf int; + out [1024]byte; + nout int; } func (e *encoder) Write(p []byte) (n int, err os.Error) { @@ -190,9 +190,9 @@ func (e *encoder) Write(p []byte) (n int, err os.Error) { // Large interior chunks. for len(p) >= 52 { - nn := len(e.out)/(1+52/4*5+1) * 52; + nn := len(e.out)/(1 + 52/4*5 + 1)*52; if nn > len(p) { - nn = len(p)/52 * 52; + nn = len(p)/52*52; } if nn > 0 { nout := Encode(&e.out, p[0:nn]); @@ -216,7 +216,7 @@ func (e *encoder) Write(p []byte) (n int, err os.Error) { func (e *encoder) Close() os.Error { // If there's anything left in the buffer, flush it out if e.err == nil && e.nbuf > 0 { - nout := Encode(&e.out, e.buf[0:e.nbuf]); + nout := Encode(&e.out, e.buf[0 : e.nbuf]); e.nbuf = 0; _, e.err = e.w.Write(e.out[0:nout]); } @@ -229,14 +229,14 @@ func NewDecoder(r io.Reader) io.Reader { } type decoder struct { - r io.Reader; - err os.Error; - readErr os.Error; - buf [1024]byte; - nbuf int; - out []byte; - outbuf [1024]byte; - off int64; + r io.Reader; + err os.Error; + readErr os.Error; + buf [1024]byte; + nbuf int; + out []byte; + outbuf [1024]byte; + off int64; } func (d *decoder) Read(p []byte) (n int, err os.Error) { @@ -263,22 +263,21 @@ func (d *decoder) Read(p []byte) (n int, err os.Error) { // Read and decode more input. var nn int; - nn, d.readErr = d.r.Read(d.buf[d.nbuf:len(d.buf)]); + nn, d.readErr = d.r.Read(d.buf[d.nbuf : len(d.buf)]); d.nbuf += nn; // Send complete lines to Decode. - nl := bytes.LastIndex(d.buf[0:d.nbuf], newline); + nl := bytes.LastIndex(d.buf[0 : d.nbuf], newline); if nl < 0 { continue; } - nn, d.err = Decode(&d.outbuf, d.buf[0:nl+1]); + nn, d.err = Decode(&d.outbuf, d.buf[0 : nl+1]); if e, ok := d.err.(CorruptInputError); ok { - d.err = CorruptInputError(int64(e)+d.off); + d.err = CorruptInputError(int64(e) + d.off); } d.out = d.outbuf[0:nn]; - d.nbuf = bytes.Copy(&d.buf, d.buf[nl+1:d.nbuf]); + d.nbuf = bytes.Copy(&d.buf, d.buf[nl+1 : d.nbuf]); d.off += int64(nl+1); } panic("unreacahable"); } - |