Tcl_CommandComplete(3tcl) Tcl Library Procedures Tcl_CommandComplete(3tcl)__________________________________________________________________________________________________________________________________________________NAME
Tcl_CommandComplete - Check for unmatched braces in a Tcl command
SYNOPSIS
#include <tcl.h>
int
Tcl_CommandComplete(cmd)
ARGUMENTS
const char *cmd (in) Command string to test for completeness.
_________________________________________________________________DESCRIPTION
Tcl_CommandComplete takes a Tcl command string as argument and determines whether it contains one or more complete commands (i.e. there are
no unclosed quotes, braces, brackets, or variable references). If the command string is complete then it returns 1; otherwise it returns
0.
KEYWORDS
complete command, partial command
TclTcl_CommandComplete(3tcl)
Check Out this Related Man Page
while(3tcl) Tcl Built-In Commands while(3tcl)__________________________________________________________________________________________________________________________________________________NAME
while - Execute script repeatedly as long as a condition is met
SYNOPSIS
while test body
_________________________________________________________________DESCRIPTION
The while command evaluates test as an expression (in the same way that expr evaluates its argument). The value of the expression must a
proper boolean value; if it is a true value then body is executed by passing it to the Tcl interpreter. Once body has been executed then
test is evaluated again, and the process repeats until eventually test evaluates to a false boolean value. Continue commands may be exe-
cuted inside body to terminate the current iteration of the loop, and break commands may be executed inside body to cause immediate termi-
nation of the while command. The while command always returns an empty string.
Note: test should almost always be enclosed in braces. If not, variable substitutions will be made before the while command starts execut-
ing, which means that variable changes made by the loop body will not be considered in the expression. This is likely to result in an
infinite loop. If test is enclosed in braces, variable substitutions are delayed until the expression is evaluated (before each loop iter-
ation), so changes in the variables will be visible. For an example, try the following script with and without the braces around $x<10:
set x 0
while {$x<10} {
puts "x is $x"
incr x
}
EXAMPLE
Read lines from a channel until we get to the end of the stream, and print them out with a line-number prepended:
set lineCount 0
while {[gets $chan line] >= 0} {
puts "[incr lineCount]: $line"
}
SEE ALSO break(3tcl), continue(3tcl), for(3tcl), foreach(3tcl)KEYWORDS
boolean value, loop, test, while
Tclwhile(3tcl)
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