Provided by:
manpages-zh_1.5.2-1_all 
NAME
binary - ()
SYNOPSIS
binary format formatString ?arg arg ...?
binary scan string formatString ?varName varName ...?
_________________________________________________________________
DESCRIPTION
binary format Tcl 16 2284 binary scan: Tcl
BINARY FORMAT
binary format formatString ()
formatString (specifier) count(consume)count (item)count *
-(type-count) 0 ():
a count arg count arg count *, arg count
binary format a7a*a alpha bravo charlie
alpha\000\000bravoc
A a
binary format A6A*A alpha bravo charlie
alpha bravoc.
b count ()Arg 1 0 (emit) arg count arg count *, arg count
binary format b5b* 11100 111000011010
\x07\x87\x05
B () b
binary format B5B* 11100 111000011010
\xe0\xe1\xa0
h count ()Arg 0123456789abcdefABCDEF()(emit) arg count arg
count * arg count
binary format h3h* AB def
\xba\x00\xed\x0f
H () h
binary format H3H* ab DEF
\xab\x00\xde\xf0
c 8 count arg arg (low-order) 8 count * count count
binary format c3cc* {3 -3 128 1} 260 {2 5}
\x03\xfd\x80\x04\x02\x05
binary format c {2 5}
s (little-endian)16 c16(significant)
binary format s3 {3 -3 258 1}
\x03\x00\xfd\xff\x02\x01
S (big-endian)16 s
binary format S3 {3 -3 258 1}
\x00\x03\xff\xfd\x01\x02
i
(little-endian)32 c32
binary format i3 {3 -3 65536 1}
\x03\x00\x00\x00\xfd\xff\xff\xff\x00\x00\x01\x00
I (big-endian)32 i
binary format I3 {3 -3 65536 1}
\x00\x00\x00\x03\xff\xff\xff\xfd\x00\x01\x00\x00
f c FLT_MAX Tcl Intel Pentium Windows
binary format f2 {1.6 3.4}
\xcd\xcc\xcc\x3f\x9a\x99\x59\x40
d f Intel Pentium Windows
binary format d1 {1.6}
\x9a\x99\x99\x99\x99\x99\xf9\x3f
x Stores count null bytes in the output string. If count is not
specified, stores one null byte. If count is *, generates an
error. This type does not consume an argument. For example,
binary format a3xa3x2a3 abc def ghi
abc\000def\000\000ghi
X count count * 0count
binary format a3X*a3X2a3 abc def ghi
dghi.
@ count 0 count (unitialized ?) count * count
binary format a5@2a1@*a3@10a1 abcde f ghi j
abfdeghi\000\000j.
BINARY SCAN
binary scan String formatString varName string
binary format formatString (specifier) count(consume)count (item)count
*(untouch) binary scan
(important) c, s S(64 i II) (long) ()(1)(char 0x80 short 0x8000
int 0x80000000):
set signShort [binary format s1 0x8000]
binary scan $signShort s1 val; # val == 0xFFFF8000
(mask) short :
set val [expr {$val & 0xFFFF}]; # val == 0x8000
-(type-count) 0 ():
a count count * string count
binary scan abcde\000fghi a6a10 var1 var2
1 abcde\000 var1 var2
A (strip)(blank)(null) a
binary scan "abc efghi \000" A* var1
1 abc efghi var1
b count 10() count * count
binary scan \x07\x87\x05 b5b* var1 var2
2 11100 var1 1110000110100000 var2.
B () b
binary scan \x70\x87\x05 B5B* var1 var2
2 01110 var1 1000011100000101 var2.
h count 0123456789abcdefABCDEF () count *, count
binary scan \x07\x86\x05 h3h* var1 var2
2 706 var1 50 n var2.
H h
binary scan \x07\x86\x05 H3H* var1 var2
2 078 var1 05 var2.
c count 8 count * count8
binary scan \x07\x86\x05 c2c* var1 var2
2 7 -122 var1 5 var2. 8(quantity):
expr ( $num + 0x100 ) % 0x100
s count 16 count * count16
binary scan \x05\x00\x07\x00\xf0\xff s2s* var1 var2
2 5 7 var1 -16 var2. 16(quantity):
expr ( $num + 0x10000 ) % 0x10000
S count 16 s
binary scan \x00\x05\x00\x07\xff\xf0 S2S* var1 var2
2 5 7 var1 -16 var2.
i count 32 count * count32
binary scan \x05\x00\x00\x00\x07\x00\x00\x00\xf0\xff\xff\xff i2i* var1 var2
2 5 7 var1 -16 var2 Tcl
I count 32 i
binary \x00\x00\x00\x05\x00\x00\x00\x07\xff\xff\xff\xf0 I2I* var1 var2
2 5 7 var1 -16 var2
f count count * count Intel Pentium Windows
binary scan \x3f\xcc\xcc\xcd f var1
1 1.6000000238418579 var1
d count f Intel Pentium Windows
binary scan \x9a\x99\x99\x99\x99\x99\xf9\x3f d var1
1 1.6000000000000001 var11
x string count count * string count
binary scan \x01\x02\x03\x04 x2H* var1
1 0304 var1
X string count count * 0 string count
binary scan \x01\x02\x03\x04 c2XH* var1 var2
2 1 2 var1 020304 var2
@ countt 0 string count string count
binary scan \x01\x02\x03\x04 c2@1H* var1 var2
2 1 2 var1 020304 var2
PLATFORM ISSUES
tcl_platform byteOrder
SEE ALSO
format(n), scan(n), tclvars(n)
KEYWORDS
binary, format, scan
[]
[]
2001/06/21
Linux man :
http://cmpp.linuxforum.net