ckint(1) USER COMMANDS ckint(1)
NAME
ckint - display a prompt; verify and return an integer value
SYNOPSIS
ckint [-Q] [-W width] [-b base] [-d default] [-h help] [-e
error] [-p prompt]
[-k pid [-s signal]]
errint [-W] [-b base] [-e error]
helpint [-W] [-b base] [-h help]
valint [-b base] input
DESCRIPTION
ckint prompts a user, then validates the response. It
defines, among other things, a prompt message whose response
should be an integer, text for help and error messages, and
a default value (which will be returned if the user responds
with a carriage return). All messages are limited in length
to 70 characters and are formatted automatically. Any white
space used in the definition (including newline) is
stripped. The -W option cancels the automatic formatting.
When a tilde is placed at the beginning or end of a message
definition, the default text will be inserted at that point,
allowing both custom text and the default text to be
displayed. If the prompt, help or error message is not
defined, the default message (as defined under NOTES) will
be displayed. Three visual tool modules are linked to the
ckint command. They are errint (which formats and displays
an error message), helpint (which formats and displays a
help message), and valint (which validates a response).
These modules should be used in conjunction with FML
objects. In this instance, the FML object defines the
prompt. When base is defined in the errint and helpint
modules, the messages will include the expected base of the
input. The options and arguments for this command are:
-Q Specifies that quit will not be allowed as a valid
response.
-W Specifies that prompt, help and error messages will be
formatted to a line length of width.
-b Defines the base for input. Must be 2 to 36, default
is 10.
-d Defines the default value as default. The default is
not validated and so does not have to meet any cri-
teria.
-h Defines the help messages as help.
-e Defines the error message as error.
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ckint(1) USER COMMANDS ckint(1)
-p Defines the prompt message as prompt.
-k Specifies that process ID pid is to be sent a signal if
the user chooses to abort.
-s Specifies that the process ID pid defined with the -k
option is to be sent signal signal when quit is chosen.
If no signal is specified, SIGTERM is used.
input
Input to be verified against base criterion.
EXIT CODES
0 = Successful execution
1 = EOF on input
2 = Usage error
3 = User termination (quit)
NOTES
The default base 10 prompt for ckint is:
Enter an integer [?,q]:
The default base 10 error message is:
ERROR - Please enter an integer.
The default base 10 help message is:
Please enter an integer.
The messages are changed from "integer" to "base base integer"
if the base is set to a number other than 10.
When the quit option is chosen (and allowed), q is returned
along with the return code 3. The valint module will not pro-
duce any output. It returns zero for success and non-zero for
failure.
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