a2p
accept
access
acct
addftinfo
addr2line
adjtime
afmtodit
after
aio_cancel
aio_error
aio_read
aio_return
aio_suspend
aio_waitcomplete
aio_write
alias
aliases
alloc
anvil
append
apply
apropos
ar
array
as
asa
asn1parse
at
atq
atrm
attemptckalloc
attemptckrealloc
authlib
authtest
autopoint
awk
b64decode
b64encode
basename
batch
bc
bdes
bell
bg
bgerror
biff
big5
binary
bind
bindkey
bindtags
bindtextdomain
bio
bitmap
blowfish
bn
bootparams
bootptab
bounce
brandelf
break
breaksw
brk
bsdiff
bsdtar
bsnmpd
bspatch
bthost
btsockstat
buffer
builtin
builtins
bunzip2
button
byacc
bzcat
bzegrep
bzfgrep
bzgrep
bzip2
c2ph
c89
c99
ca
cal
calendar
canvas
cap_mkdb
case
cat
catch
catman
cc
cd
cdcontrol
chdir
checkbutton
checknr
chflags
chfn
chgrp
chio
chkey
chmod
chown
chpass
chroot
chsh
ci
ciphers
ckalloc
ckdist
ckfree
ckrealloc
cksum
cleanup
clear
clipboard
clock
clock_getres
clock_gettime
clock_settime
close
cmp
co
col
colcrt
colldef
colors
colrm
column
comm
command
compile_et
complete
compress
concat
config
connect
console
continue
core
courierlogger
couriertcpd
cp
cpan
cpio
cpp
creat
crl
crontab
crunchgen
crunchide
crypt
crypto
csh
csplit
ctags
ctm
ctm_dequeue
ctm_rmail
ctm_smail
cu
cursor
cursors
cut
cvs
date
dbiprof
dbiproxy
dc
dcgettext
dcngettext
dd
dde
default
defer
deliverquota
des
destroy
devfs
df
dgettext
dgst
dh
dhparam
dialog
diff
diff3
dig
dir
dirent
dirname
dirs
discard
disktab
dngettext
do
domainname
done
dprofpp
dsa
dsaparam
dtmfdecode
du
dup
dup2
eaccess
ec
ecdsa
echo
echotc
ecparam
ed
edit
editrc
ee
egrep
elf
elfdump
elif
else
enc
enc2xs
encoding
end
endif
endsw
engine
enigma
entry
env
envsubst
eof
eqn
err
errno
error
errstr
esac
ethers
euc
eui64
eval
event
evp
ex
exec
execve
exit
expand
export
exports
expr
extattr
extattr_delete_fd
extattr_delete_file
extattr_get_fd
extattr_get_file
extattr_set_fd
extattr_set_file
f77
false
famm
famx
fblocked
fbtab
fc
fchdir
fchflags
fchmod
fchown
fcntl
fconfigure
fcopy
fdescfs
fdformat
fdread
fdwrite
fetch
fg
fgrep
fhopen
fhstat
fhstatfs
fi
file
file2c
fileevent
filename
filetest
find
find2perl
finger
flex
flock
flush
fmt
focus
fold
font
fontedit
for
foreach
fork
format
forward
fpathconf
frame
from
fs
fstab
fstat
fstatfs
fsync
ftp
ftpchroot
ftpusers
ftruncate
futimes
g711conv
gb2312
gb18030
gbk
gcc
gcore
gcov
gdb
gencat
gendsa
genrsa
gensnmptree
getconf
getdents
getdirentries
getdtablesize
getegid
geteuid
getfacl
getfh
getfsstat
getgid
getgroups
getitimer
getlogin
getopt
getopts
getpeername
getpgid
getpgrp
getpid
getppid
getpriority
getresgid
getresuid
getrlimit
getrusage
gets
getsid
getsockname
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gettext
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gettimeofday
gettytab
getuid
glob
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gmake
goto
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grab
grep
grid
grn
grodvi
groff
groff_font
groff_out
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grolbp
grolj4
grops
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gunzip
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h2ph
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hd
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host
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hpftodit
http
hup
i386_get_ioperm
i386_get_ldt
i386_set_ioperm
i386_set_ldt
i386_vm86
iconv
id
ident
idprio
if
ifnames253
ifnames259
image
imapd
incr
indent
indxbib
info
infokey
inode
install
instmodsh
interp
intro
introduction
ioctl
ipcrm
ipcs
ipf
ipftest
ipnat
ippool
ipresend
issetugid
jail
jail_attach
jobid
jobs
join
jot
kbdcontrol
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kenv
kevent
keycap
keylogin
keylogout
keymap
keysyms
kgdb
kill
killall
killpg
kinit
kldfind
kldfirstmod
kldload
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kldsym
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kse
kse_create
kse_exit
kse_release
kse_switchin
kse_thr_interrupt
kse_wakeup
ktrace
label
labelframe
lam
lappend
last
lastcomm
lastlog
lchflags
lchmod
lchown
ld
ldap
ldapadd
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ldapmodify
ldapmodrdn
ldappasswd
ldapsearch
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ldd
leave
less
lesskey
lex
lgetfh
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libnetcfg
library
limit
limits
lindex
link
linprocfs
linsert
lint
lio_listio
list
listbox
listen
lj4_font
lkbib
llength
lmtp
ln
load
loadfont
local
locale
locate
lock
lockf
log
logger
login
logins
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look
lookbib
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lower
lp
lpq
lpr
lprm
lptest
lrange
lreplace
ls
lsearch
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lsort
lstat
lsvfs
lutimes
lynx
m4
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magic
mail
maildiracl
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makeinfo
makewhatis
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manpath
master
mc
mcedit
mcview
md2
md4
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menu
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mesg
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mincore
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minigzip
mkdep
mkdir
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mkimapdcert
mklocale
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mlock
mlockall
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more
motd
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mptable
msdos
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msgs
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mt
munlock
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mv
myisamchk
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mysql_config
mysql_fix_privilege_tables
mysql_zap
namespace
nanosleep
nawk
nc
ncal
ncplist
ncplogin
ncplogout
neqn
netconfig
netgroup
netid
netstat
networks
newaliases
newgrp
nex
nfsstat
nfssvc
ngettext
nice
nl
nm
nmount
nohup
nologin
notify
nroff
nseq
nslookup
ntp_adjtime
ntp_gettime
nvi
nview
objcopy
objdump
objformat
ocsp
od
onintr
open
openssl
opieaccess
opieinfo
opiekey
opiekeys
opiepasswd
option
options
oqmgr
pack
package
packagens
pagesize
palette
pam_auth
panedwindow
parray
passwd
paste
patch
pathchk
pathconf
pawd
pax
pbm
pcre
pcreapi
pcrebuild
pcrecallout
pcrecompat
pcrecpp
pcregrep
pcrematching
pcrepartial
pcrepattern
pcreperform
pcreposix
pcreprecompile
pcresample
pcretest
perl
perl56delta
perl58delta
perl561delta
perl570delta
perl571delta
perl572delta
perl573delta
perl581delta
perl582delta
perl583delta
perl584delta
perl585delta
perl586delta
perl587delta
perl588delta
perl5004delta
perl5005delta
perlaix
perlamiga
perlapi
perlapio
perlapollo
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perlbeos
perlbook
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perlbot
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perlcall
perlcc
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perlclib
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perldata
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perldebtut
perldebug
perldelta
perldgux
perldiag
perldoc
perldos
perldsc
perlebcdic
perlembed
perlepoc
perlfaq
perlfaq1
perlfaq2
perlfaq3
perlfaq4
perlfaq5
perlfaq6
perlfaq7
perlfaq8
perlfaq9
perlfilter
perlfork
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perlfreebsd
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perlglossary
perlgpl
perlguts
perlhack
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perlintern
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perliol
perlipc
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perlivp
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perlko
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perllol
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perlmint
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perlnumber
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perlopenbsd
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perlos2
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perlvmesa
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perlwin32
perlxs
perlxstut
perror
pfbtops
pftp
pgrep
phones
photo
pic
pickup
piconv
pid
pipe
pkcs7
pkcs8
pkcs12
pkg_add
pkg_check
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pkg_info
pkg_sign
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pkill
pl2pm
place
pod2html
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pod2man
pod2text
pod2usage
podchecker
podselect
poll
popd
popup
posix_madvise
postalias
postcat
postconf
postdrop
postfix
postkick
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postlog
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postqueue
postsuper
pr
pread
preadv
printcap
printenv
printf
proc
procfs
profil
protocols
prove
proxymap
ps
psed
psroff
pstruct
ptrace
publickey
pushd
puts
pwd
pwrite
pwritev
qmgr
qmqpd
quota
quotactl
radiobutton
raise
rand
ranlib
rcp
rcs
rcsclean
rcsdiff
rcsfile
rcsfreeze
rcsintro
rcsmerge
read
readelf
readlink
readonly
readv
realpath
reboot
recv
recvfrom
recvmsg
red
ree
refer
regexp
registry
regsub
rehash
remote
rename
repeat
replace
req
reset
resolver
resource
return
rev
revoke
rfcomm_sppd
rfork
rhosts
ripemd
ripemd160
rlog
rlogin
rm
rmd160
rmdir
rpc
rpcgen
rs
rsa
rsautl
rsh
rtld
rtprio
rup
ruptime
rusers
rwall
rwho
s2p
safe
sasl
sasldblistusers2
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sbrk
scache
scale
scan
sched
sched_getparam
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sched_get_priority_max
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sched_rr_get_interval
sched_setparam
sched_setscheduler
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scon
scp
script
scrollbar
sdiff
sed
seek
select
selection
semctl
semget
semop
send
sendbug
sendfile
sendmail
sendmsg
sendto
services
sess_id
set
setegid
setenv
seteuid
setfacl
setgid
setgroups
setitimer
setlogin
setpgid
setpgrp
setpriority
setregid
setresgid
setresuid
setreuid
setrlimit
setsid
setsockopt
settc
settimeofday
setty
setuid
setvar
sftp
sh
sha
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shar
shells
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size
slapadd
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slapd
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slaptest
sleep
slogin
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smbutil
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socket
socketpair
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soelim
sort
source
spawn
speed
spinbox
spkac
splain
split
squid
squid_ldap_auth
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sscop
ssh
sshd_config
ssh_config
stab
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su
subst
sum
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talk
tar
tbl
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tcopy
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tcpslice
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tee
tell
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term
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terminfo
test
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text
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tfmtodit
tftp
then
threads
time
tip
tk
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tlsmgr
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top
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touch
tput
tr
trace
trafshow
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troff
true
truncate
truss
tset
tsort
tty
ttys
type
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ul
ulimit
umask
unalias
uname
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uncompress
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unifdef
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uniq
units
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unlimit
unlink
unmount
unset
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until
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update
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usbhidctl
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utf8
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utmp
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uuidgen
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vwait
w
wait
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wall
wc
wget
what
whatis
where
whereis
which
while
who
whoami
whois
window
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wm
write
writev
wtmp
x509
xargs
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xsubpp
yacc
yes
ypcat
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ypwhich
yyfix
zcat
zcmp
zdiff
zegrep
zfgrep
zforce
zgrep
zmore
znew
_exit
__syscall
 
FreeBSD/Linux/UNIX General Commands Manual
Hypertext Man Pages
parray
 
library(n)		     Tcl Built-In Commands		    library(n)



NAME
       auto_execok,  auto_import,  auto_load,  auto_mkindex, auto_mkindex_old,
       auto_qualify,  auto_reset,  tcl_findLibrary,   parray,	tcl_endOfWord,
       tcl_startOfNextWord,    tcl_startOfPreviousWord,    tcl_wordBreakAfter,
       tcl_wordBreakBefore - standard library of Tcl procedures

SYNOPSIS
       auto_execok cmd
       auto_import pattern
       auto_load cmd
       auto_mkindex dir pattern pattern ...
       auto_mkindex_old dir pattern pattern ...
       auto_qualify command namespace
       auto_reset
       tcl_findLibrary basename version patch initScript enVarName varName
       parray arrayName
       tcl_endOfWord str start
       tcl_startOfNextWord str start
       tcl_startOfPreviousWord str start
       tcl_wordBreakAfter str start
       tcl_wordBreakBefore str start


INTRODUCTION
       Tcl includes a library of Tcl procedures for commonly-needed functions.
       The procedures defined in the Tcl library are generic ones suitable for
       use by many different applications.  The location of the Tcl library is
       returned  by the info library command.  In addition to the Tcl library,
       each application will normally have its own library of  support	proce-
       dures  as  well;  the location of this library is normally given by the
       value of the $app_library global variable, where app is the name of the
       application.   For  example,  the location of the Tk library is kept in
       the variable $tk_library.

       To access the procedures in the	Tcl  library,  an  application	should
       source  the file init.tcl in the library, for example with the Tcl com-
       mand source [file join [info library] init.tcl] If the  library	proce-
       dure  Tcl_Init  is invoked from an application's Tcl_AppInit procedure,
       this happens automatically.  The  code  in  init.tcl  will  define  the
       unknown procedure and arrange for the other procedures to be loaded on-
       demand using the auto-load mechanism defined below.


COMMAND PROCEDURES
       The following procedures are provided in the Tcl library:

       auto_execok cmd
	      Determines whether there is an executable file or shell  builtin
	      by  the  name  cmd.  If so, it returns a list of arguments to be
	      passed to exec to execute the executable file or	shell  builtin
	      named by cmd.  If not, it returns an empty string.  This command
	      examines the directories in the current search  path  (given  by
	      the  PATH  environment variable) in its search for an executable
	      file named cmd.  On Windows platforms, the  search  is  expanded
	      with  the  same directories and file extensions as used by exec.
	      Auto_exec remembers information about previous  searches	in  an
	      array  named  auto_execs;  this avoids the path search in future
	      calls for the same cmd.  The command auto_reset may be  used  to
	      force auto_execok to forget its cached information.

       auto_import pattern
	      Auto_import  is  invoked	during	namespace import to see if the
	      imported commands specified by pattern reside in	an  autoloaded
	      library.	 If  so,  the commands are loaded so that they will be
	      available to the interpreter for creating the import links.   If
	      the commands do not reside in an autoloaded library, auto_import
	      does nothing.  The pattern matching is  performed  according  to
	      the matching rules of namespace import.

       auto_load cmd
	      This  command  attempts to load the definition for a Tcl command
	      named cmd.  To do this, it searches an auto-load path, which  is
	      a  list of one or more directories.  The auto-load path is given
	      by the global variable $auto_path if it exists.  If there is  no
	      $auto_path variable, then the TCLLIBPATH environment variable is
	      used, if it exists.  Otherwise the auto-load  path  consists  of
	      just  the  Tcl  library directory.  Within each directory in the
	      auto-load path there must be a file tclIndex that describes  one
	      or more commands defined in that directory and a script to eval-
	      uate to load each of the commands.  The tclIndex file should  be
	      generated  with the auto_mkindex command.  If cmd is found in an
	      index file, then the appropriate script is evaluated  to	create
	      the  command.   The  auto_load command returns 1 if cmd was suc-
	      cessfully created.  The command returns 0 if there was no  index
	      entry  for cmd or if the script didn't actually define cmd (e.g.
	      because index information is out of date).  If an  error	occurs
	      while  processing  the  script,  then  that  error  is returned.
	      Auto_load only reads the index information once and saves it  in
	      the  array  auto_index;  future calls to auto_load check for cmd
	      in the array rather than re-reading the index files.  The cached
	      index  information  may  be deleted with the command auto_reset.
	      This will force the next auto_load command to reload  the  index
	      database from disk.

       auto_mkindex dir pattern pattern ...
	      Generates  an  index suitable for use by auto_load.  The command
	      searches dir for all files whose names match any of the  pattern
	      arguments (matching is done with the glob command), generates an
	      index of all the Tcl  command  procedures  defined  in  all  the
	      matching files, and stores the index information in a file named
	      tclIndex in dir. If no pattern is given a pattern of *.tcl  will
	      be assumed.  For example, the command
	      auto_mkindex foo *.tcl

	      will  read all the .tcl files in subdirectory foo and generate a
	      new index file foo/tclIndex.

	      Auto_mkindex parses the Tcl scripts  by  sourcing  them  into  a
	      slave interpreter and monitoring the proc and namespace commands
	      that  are  executed.   Extensions  can  use  the	(undocumented)
	      auto_mkindex_parser  package to register other commands that can
	      contribute to the auto_load index. You will have to read through
	      auto.tcl to see how this works.

	      Auto_mkindex_old	parses	the  Tcl scripts in a relatively unso-
	      phisticated way:	if any line contains  the  word  proc  as  its
	      first characters then it is assumed to be a procedure definition
	      and the next word of the line is taken as the procedure's  name.
	      Procedure  definitions  that don't appear in this way (e.g. they
	      have spaces before the proc)  will  not  be  indexed.   If  your
	      script  contains "dangerous" code, such as global initialization
	      code or procedure names with special characters like $, *, [  or
	      ], you are safer using auto_mkindex_old.

       auto_reset
	      Destroys	 all   the   information  cached  by  auto_execok  and
	      auto_load.  This information will be re-read from disk the  next
	      time  it	is  needed.   Auto_reset  also	deletes any procedures
	      listed in the auto-load index, so that fresh copies of them will
	      be loaded the next time that they're used.

       auto_qualify command namespace
	      Computes a list of fully qualified names for command.  This list
	      mirrors the path a standard Tcl interpreter follows for  command
	      lookups:	 first	it looks for the command in the current names-
	      pace, and then in the global namespace.  Accordingly, if command
	      is  relative  and namespace is not ::, the list returned has two
	      elements:  command scoped by namespace, as if it were a  command
	      in  the namespace namespace; and command as if it were a command
	      in the global namespace.	Otherwise, if either command is  abso-
	      lute  (it begins with ::), or namespace is ::, the list contains
	      only command as if it were a command in the global namespace.

	      Auto_qualify is used by the auto-loading facilities in Tcl, both
	      for producing auto-loading indexes such as pkgIndex.tcl, and for
	      performing the actual auto-loading of functions at runtime.

       tcl_findLibrary basename version patch initScript enVarName varName
	      This is a standard search procedure for use by extensions during
	      their  initialization.   They  call  this  procedure to look for
	      their script library in several standard directories.  The  last
	      component of the name of the library directory is normally base-
	      nameversion (e.g., tk8.0), but it might be "library" when in the
	      build hierarchies.  The initScript file will be sourced into the
	      interpreter once it is found.  The directory in which this  file
	      is  found  is  stored into the global variable varName.  If this
	      variable is already defined (e.g., by C code during  application
	      initialization) then no searching is done.  Otherwise the search
	      looks in these directories: the directory named by the  environ-
	      ment  variable enVarName; relative to the Tcl library directory;
	      relative to the executable file in the standard installation bin
	      or  bin/arch  directory;	relative to the executable file in the
	      current build tree; relative to the executable file in a	paral-
	      lel build tree.

       parray arrayName
	      Prints  on  standard output the names and values of all the ele-
	      ments in the array arrayName.  ArrayName must be an array acces-
	      sible  to  the  caller  of  parray.   It	may be either local or
	      global.

       tcl_endOfWord str start
	      Returns the index of the first end-of-word location that	occurs
	      after  a starting index start in the string str.	An end-of-word
	      location is defined to be the first non-word character following
	      the  first  word character after the starting point.  Returns -1
	      if there are no more end-of-word locations  after  the  starting
	      point.   See  the  description of tcl_wordchars and tcl_nonword-
	      chars below for more details on how Tcl determines which charac-
	      ters are word characters.

       tcl_startOfNextWord str start
	      Returns  the  index  of  the  first  start-of-word location that
	      occurs after a starting index start in the string str.  A start-
	      of-word  location is defined to be the first word character fol-
	      lowing a non-word character.  Returns -1 if there  are  no  more
	      start-of-word locations after the starting point.

       tcl_startOfPreviousWord str start
	      Returns  the  index  of  the  first  start-of-word location that
	      occurs before a starting index start in the string str.  Returns
	      -1  if  there  are  no  more  start-of-word locations before the
	      starting point.

       tcl_wordBreakAfter str start
	      Returns the index of the first word boundary after the  starting
	      index  start in the string str.  Returns -1 if there are no more
	      boundaries after the starting point in the  given  string.   The
	      index  returned  refers to the second character of the pair that
	      comprises a boundary.

       tcl_wordBreakBefore str start
	      Returns the index of the first word boundary before the starting
	      index  start in the string str.  Returns -1 if there are no more
	      boundaries before the starting point in the given  string.   The
	      index  returned  refers to the second character of the pair that
	      comprises a boundary.


VARIABLES
       The following global variables are defined or used by the procedures in
       the Tcl library:

       auto_execs
	      Used by auto_execok to record information about whether particu-
	      lar commands exist as executable files.

       auto_index
	      Used by auto_load to save the index information read from  disk.

       auto_noexec
	      If  set to any value, then unknown will not attempt to auto-exec
	      any commands.

       auto_noload
	      If set to any value, then unknown will not attempt to  auto-load
	      any commands.

       auto_path
	      If set, then it must contain a valid Tcl list giving directories
	      to search during auto-load operations.  This  variable  is  ini-
	      tialized	during	startup  to contain, in order: the directories
	      listed in the TCLLIBPATH	environment  variable,	the  directory
	      named  by  the  $tcl_library  variable,  the parent directory of
	      $tcl_library, the directories listed in the  $tcl_pkgPath  vari-
	      able.

       env(TCL_LIBRARY)
	      If set, then it specifies the location of the directory contain-
	      ing library scripts (the value of this variable will be assigned
	      to  the  tcl_library variable and therefore returned by the com-
	      mand info library).  If this variable isn't set then  a  default
	      value is used.

       env(TCLLIBPATH)
	      If set, then it must contain a valid Tcl list giving directories
	      to search during	auto-load  operations.	 Directories  must  be
	      specified  in  Tcl  format,  using  "/"  as  the path separator,
	      regardless of platform.  This variable is only  used  when  ini-
	      tializing the auto_path variable.

       tcl_nonwordchars
	      This variable contains a regular expression that is used by rou-
	      tines like tcl_endOfWord to identify whether a character is part
	      of a word or not.  If the pattern matches a character, the char-
	      acter is considered to be  a  non-word  character.   On  Windows
	      platforms,  spaces,  tabs,  and newlines are considered non-word
	      characters.  Under Unix, everything  but	numbers,  letters  and
	      underscores are considered non-word characters.

       tcl_wordchars
	      This variable contains a regular expression that is used by rou-
	      tines like tcl_endOfWord to identify whether a character is part
	      of a word or not.  If the pattern matches a character, the char-
	      acter is considered to be a word character.   On	Windows  plat-
	      forms, words are comprised of any character that is not a space,
	      tab, or newline.	Under Unix, words are  comprised  of  numbers,
	      letters or underscores.

       unknown_pending
	      Used by unknown to record the command(s) for which it is search-
	      ing.  It is used to detect  errors  where  unknown  recurses  on
	      itself   infinitely.   The  variable  is	unset  before  unknown
	      returns.


SEE ALSO
       info(n), re_syntax(n)


KEYWORDS
       auto-exec, auto-load, library, unknown, word, whitespace



Tcl				      8.0			    library(n)
=29224
+91
(4)