09-26-2002
How to pad spaces
Hello,
I have to write a function to input a Label and a number, and output a line as the following format:
Column 1 to 30: field label, left justified.
Column 31 to 45: A number, right justified.
The middle is padded with space. May I know how can I achieve this? (I don't know how to count the length of the label/number, and how to pad the spaces in between.)
Please help.
Many thanks.
Sarah
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LEARN ABOUT NETBSD
form_field_just
FORMS(3) BSD Library Functions Manual FORMS(3)
NAME
field_just, set_field_just -- form library
LIBRARY
Curses Form Library (libform, -lform)
SYNOPSIS
#include <form.h>
int
field_just(FIELD *field);
int
set_field_just(FIELD *field, int justification);
DESCRIPTION
Field justification is only applied to static fields, a dynamic field will not be justified. The default justification for a field is
NO_JUSTIFICATION. The field_just() will return the current justification value of the given field and the justification may be set by call-
ing the set_field_just() function.
PARAMETERS
The following are the valid justifications for a field:
NO_JUSTIFICATION No justification is to be applied to the field. In practice, this is the same as JUSTIFY_LEFT.
JUSTIFY_RIGHT The field will be right justified. That is, the end of each line will be butted up against the right hand side of the
field.
JUSTIFY_LEFT The field will be left justified. That is, the start of each line will be butted up against the left hand side of the
field.
JUSTIFY_CENTER The field will be centre justified, padding will be applied to either end of the line to make the line centred in the
field.
RETURN VALUES
The functions will return one of the following error values:
E_OK The function was successful.
E_CURRENT The field specified is the currently active one on the form.
E_BAD_ARGUMENT A bad argument was passed to the function.
SEE ALSO
curses(3), forms(3)
NOTES
The header <form.h> automatically includes both <curses.h> and <eti.h>.
BSD
January 1, 2001 BSD