diff options
Diffstat (limited to 'libgo/go/fmt/format.go')
| -rw-r--r-- | libgo/go/fmt/format.go | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/libgo/go/fmt/format.go b/libgo/go/fmt/format.go index 78d9e998b1f..2186f334b91 100644 --- a/libgo/go/fmt/format.go +++ b/libgo/go/fmt/format.go @@ -5,9 +5,7 @@ package fmt import ( - "bytes" "strconv" - "unicode" "unicode/utf8" ) @@ -36,10 +34,10 @@ func init() { } // A fmt is the raw formatter used by Printf etc. -// It prints into a bytes.Buffer that must be set up externally. +// It prints into a buffer that must be set up separately. type fmt struct { intbuf [nByte]byte - buf *bytes.Buffer + buf *buffer // width, precision wid int prec int @@ -69,7 +67,7 @@ func (f *fmt) clearflags() { f.zero = false } -func (f *fmt) init(buf *bytes.Buffer) { +func (f *fmt) init(buf *buffer) { f.buf = buf f.clearflags() } @@ -247,7 +245,7 @@ func (f *fmt) integer(a int64, base uint64, signedness bool, digits string) { } // If we want a quoted char for %#U, move the data up to make room. - if f.unicode && f.uniQuote && a >= 0 && a <= unicode.MaxRune && unicode.IsPrint(rune(a)) { + if f.unicode && f.uniQuote && a >= 0 && a <= utf8.MaxRune && strconv.IsPrint(rune(a)) { runeWidth := utf8.RuneLen(rune(a)) width := 1 + 1 + runeWidth + 1 // space, quote, rune, quote copy(buf[i-width:], buf[i:]) // guaranteed to have enough room. @@ -290,16 +288,15 @@ func (f *fmt) fmt_s(s string) { // fmt_sx formats a string as a hexadecimal encoding of its bytes. func (f *fmt) fmt_sx(s, digits string) { // TODO: Avoid buffer by pre-padding. - var b bytes.Buffer + var b []byte for i := 0; i < len(s); i++ { if i > 0 && f.space { - b.WriteByte(' ') + b = append(b, ' ') } v := s[i] - b.WriteByte(digits[v>>4]) - b.WriteByte(digits[v&0xF]) + b = append(b, digits[v>>4], digits[v&0xF]) } - f.pad(b.Bytes()) + f.pad(b) } // fmt_q formats a string as a double-quoted, escaped Go string constant. |