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| author | Rob Pike <r@golang.org> | 2009-05-15 15:18:09 -0700 |
|---|---|---|
| committer | Rob Pike <r@golang.org> | 2009-05-15 15:18:09 -0700 |
| commit | c81d09d92bee8f21a79d8bbef3efc6f9f0e36a7e (patch) | |
| tree | db9c107d3b0ff9d19cffe1568325b8a7f275b5bb /src/lib | |
| parent | 66f5e89082ce981b9c025dfa1f2421ec525ecf73 (diff) | |
| download | go-c81d09d92bee8f21a79d8bbef3efc6f9f0e36a7e.tar.xz | |
implement %#o %#x %#X formats
R=rsc
OCL=28936
CL=28936
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/fmt/fmt_test.go | 7 | ||||
| -rw-r--r-- | src/lib/fmt/format.go | 15 |
2 files changed, 21 insertions, 1 deletions
diff --git a/src/lib/fmt/fmt_test.go b/src/lib/fmt/fmt_test.go index e4158624b0..e8abc2f0d7 100644 --- a/src/lib/fmt/fmt_test.go +++ b/src/lib/fmt/fmt_test.go @@ -77,7 +77,6 @@ var fmttests = []fmtTest{ fmtTest{ "%+d", 12345, "+12345" }, fmtTest{ "%+d", -12345, "-12345" }, fmtTest{ "% d", 12345, " 12345" }, - fmtTest{ "% d", -12345, "-12345" }, // arrays fmtTest{ "%v", array, "[1 2 3 4 5]" }, @@ -92,12 +91,15 @@ var fmttests = []fmtTest{ fmtTest{ "%d", uint32(b32), "4294967295" }, fmtTest{ "%d", uint64(b64), "18446744073709551615" }, fmtTest{ "%o", 01234, "1234" }, + fmtTest{ "%#o", 01234, "01234" }, fmtTest{ "%o", uint32(b32), "37777777777" }, fmtTest{ "%o", uint64(b64), "1777777777777777777777" }, fmtTest{ "%x", 0x1234abcd, "1234abcd" }, + fmtTest{ "%#x", 0x1234abcd, "0x1234abcd" }, fmtTest{ "%x", b32-0x1234567, "fedcba98" }, fmtTest{ "%X", 0x1234abcd, "1234ABCD" }, fmtTest{ "%X", b32-0x1234567, "FEDCBA98" }, + fmtTest{ "%#X", 0, "0X0" }, fmtTest{ "%x", b64, "ffffffffffffffff" }, fmtTest{ "%b", 7, "111" }, fmtTest{ "%b", b64, "1111111111111111111111111111111111111111111111111111111111111111" }, @@ -125,6 +127,9 @@ var fmttests = []fmtTest{ fmtTest{ "%20d", 1234, " 1234" }, fmtTest{ "%-20.8d", 1234, "00001234 " }, fmtTest{ "%-20.8d", -1234, "-00001234 " }, + fmtTest{ "%-#20.8x", 0x1234abc, "0x01234abc " }, + fmtTest{ "%-#20.8X", 0x1234abc, "0X01234ABC " }, + fmtTest{ "%-#20.8o", 01234, "00001234 " }, fmtTest{ "%.20b", 7, "00000000000000000111" }, fmtTest{ "%20.5s", "qwertyuiop", " qwert" }, fmtTest{ "%.5s", "qwertyuiop", "qwert" }, diff --git a/src/lib/fmt/format.go b/src/lib/fmt/format.go index a66440f261..3cd492980d 100644 --- a/src/lib/fmt/format.go +++ b/src/lib/fmt/format.go @@ -202,6 +202,21 @@ func (f *Fmt) integer(a int64, base uint, is_signed bool, digits *string) string i--; } + if f.sharp { + switch base { + case 8: + if buf[i+1] != '0' { + buf[i] = '0'; + i--; + } + case 16: + buf[i] = 'x' + digits[10]-'a'; + i--; + buf[i] = '0'; + i--; + } + } + if negative { buf[i] = '-'; i--; |