ncurses 6.1 - patch 20180714

[ncurses.git] / man / form_field_validation.3x

diff --git a/man/form_field_validation.3x b/man/form_field_validation.3x
index c82abf3c1071538449e17329b859e5e91d46d64c..5950ecf96b36b3addddde0983105667956051869 100644 (file)
--- a/man/form_field_validation.3x
+++ b/man/form_field_validation.3x
@@ -1,5 +1,5 @@
 .\"***************************************************************************
 .\"***************************************************************************

-.\" Copyright (c) 1998-2002,2003 Free Software Foundation, Inc.              *
+.\" Copyright (c) 1998-2017,2018 Free Software Foundation, Inc.              *

 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *


@@ -26,10 +26,14 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"

-.\" $Id: form_field_validation.3x,v 1.14 2003/05/10 20:33:49 jmc Exp $
+.\" $Id: form_field_validation.3x,v 1.22 2018/07/14 22:39:06 tom Exp $

 .TH form_field_validation 3X ""
 .TH form_field_validation 3X ""

+.de bP
+.ie n  .IP \(bu 4
+.el    .IP \(bu 2
+..

 .SH NAME
 .SH NAME

-\fBform_field_validation\fR - data type validation for fields
+\fBform_field_validation\fR \- data type validation for fields

 .SH SYNOPSIS
 \fB#include <form.h>\fR
 .br
 .SH SYNOPSIS
 \fB#include <form.h>\fR
 .br


@@ -65,54 +69,92 @@ TYPE_ALPHA
 Character data.  Requires a third \fBint\fR argument, a minimum field width.
 .TP 5
 TYPE_ENUM
 Character data.  Requires a third \fBint\fR argument, a minimum field width.
 .TP 5
 TYPE_ENUM

-Accept one of a specified set of strings.  Requires a third \fB(char **)\fR
-argument pointing to a string list; a fourth \fBint\fR flag argument to enable
-case-sensitivity; and a fifth \fBint\fR flag argument specifying whether a partial
-match must be a unique one (if this flag is off, a prefix matches the first
-of any set of more than one list elements with that prefix). Please notice
-that the string list is not copied, only a reference to it is stored in the
-field. So you should avoid using a list that lives in automatic variables
-on the stack.
+Accept one of a specified set of strings.  Requires additional
+parameters:
+.RS
+.bP
+a third \fB(char **)\fR argument pointing to a string list;
+.bP
+a fourth \fBint\fR flag argument to enable case-sensitivity;
+.bP
+and a fifth \fBint\fR flag argument specifying whether a partial
+match must be a unique one.
+If this flag is off, a prefix matches the first
+of any set of more than one list elements with that prefix.
+.IP
+The library copies the string list,
+so you may use a list that lives in automatic variables on the stack.
+.RE

 .TP 5
 TYPE_INTEGER
 .TP 5
 TYPE_INTEGER

-Integer data, parsable to an integer by \fBatoi(3)\fR.  Requires a third
-\fBint\fR argument controlling the precision, a fourth \fBlong\fR argument
-constraining minimum value, and a fifth \fBlong\fR constraining maximum value.
+Integer data, parsable to an integer by \fBatoi\fP(3).
+Requires additional parameters:
+.RS
+.bP
+a third \fBint\fR argument controlling the precision,
+.bP
+a fourth \fBlong\fR argument constraining minimum value,
+.bP
+and a fifth \fBlong\fR constraining maximum value.

 If the maximum value is less than or equal to the minimum value, the range is
 If the maximum value is less than or equal to the minimum value, the range is

-simply ignored. On return the field buffer is formatted according to the
+simply ignored.
+On return, the field buffer is formatted according to the

 \fBprintf\fR format specification ".*ld", where the '*' is replaced by the
 precision argument.
 \fBprintf\fR format specification ".*ld", where the '*' is replaced by the
 precision argument.

+.IP

 For details of the precision handling see \fBprintf's\fR man-page.
 For details of the precision handling see \fBprintf's\fR man-page.

+.RE

 .TP 5
 TYPE_NUMERIC
 .TP 5
 TYPE_NUMERIC

-Numeric data (may have a decimal-point part). Requires a third
-\fBint\fR argument controlling the precision, a fourth \fBdouble\fR
-argument constraining minimum value, and a fifth \fBdouble\fR constraining
-maximum value. If your system supports locales, the decimal point character
-to be used must be the one specified by your locale.
-If the maximum value is less than or equal to the minimum value, the range is
-simply ignored. On return the field buffer is formatted according to the
+Numeric data (may have a decimal-point part).
+This requires additional parameters:
+.RS
+.bP
+a third \fBint\fR argument controlling the precision,
+.bP
+a fourth \fBdouble\fR argument constraining minimum value,
+.bP
+and a fifth \fBdouble\fR constraining maximum value.
+If your system supports locales,
+the decimal point character must be the one specified by your locale.
+If the maximum value is less than or equal to the minimum value,
+the range is simply ignored.
+.IP
+On return, the field buffer is formatted according to the

 \fBprintf\fR format specification ".*f", where the '*' is replaced by the
 precision argument.
 \fBprintf\fR format specification ".*f", where the '*' is replaced by the
 precision argument.

+.IP

 For details of the precision handling see \fBprintf's\fR man-page.
 For details of the precision handling see \fBprintf's\fR man-page.

+.RE

 .TP 5
 TYPE_REGEXP
 .TP 5
 TYPE_REGEXP

-Regular expression data.  Requires a regular expression \fB(char *)\fR third argument;
-the data is valid if the regular expression matches it.  Regular expressions
-are in the format of \fBregcomp\fR(3X) and \fBregexec\fR(3X). Please notice
-that the regular expression must match the whole field. If you have for
-example an eight character wide field, a regular expression "^[0-9]*$" always
-means that you have to fill all eight positions with digits. If you want to
-allow fewer digits, you may use for example "^[0-9]* *$" which is good for
-trailing spaces (up to an empty field), or "^ *[0-9]* *$" which is good for
+Regular expression data.
+Requires a regular expression \fB(char *)\fR third argument.
+The data is valid if the regular expression matches it.
+.IP
+Regular expressions
+are in the format of \fBregcomp\fR and \fBregexec\fR.
+.IP
+The regular expression must match the whole field.
+If you have for example, an eight character wide field,
+a regular expression "^[0\-9]*$" always
+means that you have to fill all eight positions with digits.
+If you want to allow fewer digits,
+you may use for example "^[0\-9]* *$" which is good for
+trailing spaces (up to an empty field),
+or "^ *[0\-9]* *$" which is good for

 leading and trailing spaces around the digits.
 .TP 5
 TYPE_IPV4
 leading and trailing spaces around the digits.
 .TP 5
 TYPE_IPV4

-An Internet Protocol Version 4 address. This requires no additional argument. It
-is checked whether or not the buffer has the form a.b.c.d, where a,b,c and d are
-numbers between 0 and 255. Trailing blanks in the buffer are ignored. The address
-itself is not validated. Please note that this is an ncurses extension. This
-field type may not be available in other curses implementations.
+An Internet Protocol Version 4 address.
+This requires no additional argument.
+The library checks whether or not the buffer has the form a.b.c.d,
+where a,b,c and d are numbers between 0 and 255.
+Trailing blanks in the buffer are ignored.
+The address itself is not validated.
+.IP
+This is an ncurses extension;
+this field type may not be available in other curses implementations.

 .PP
 It is possible to set up new programmer-defined field types.  See the
 \fBform_fieldtype\fR(3X) manual page.
 .PP
 It is possible to set up new programmer-defined field types.  See the
 \fBform_fieldtype\fR(3X) manual page.


@@ -120,13 +162,15 @@ It is possible to set up new programmer-defined field types.  See the
 The functions \fBfield_type\fR and \fBfield_arg\fR return \fBNULL\fR on
 error. The function \fBset_field_type\fR returns one of the following:
 .TP 5
 The functions \fBfield_type\fR and \fBfield_arg\fR return \fBNULL\fR on
 error. The function \fBset_field_type\fR returns one of the following:
 .TP 5

-\fBE_OK\fR
+.B E_OK

 The routine succeeded.
 .TP 5
 The routine succeeded.
 .TP 5

-\fBE_SYSTEM_ERROR\fR
+.B E_SYSTEM_ERROR

 System error occurred (see \fBerrno\fR).
 .SH SEE ALSO
 System error occurred (see \fBerrno\fR).
 .SH SEE ALSO

-\fBcurses\fR(3X), \fBform\fR(3X).
+\fBcurses\fR(3X),
+\fBform\fR(3X),
+\fBform_variables\fR(3X).

 .SH NOTES
 The header file \fB<form.h>\fR automatically includes the header file
 \fB<curses.h>\fR.
 .SH NOTES
 The header file \fB<form.h>\fR automatically includes the header file
 \fB<curses.h>\fR.


@@ -136,9 +180,3 @@ Version 7 or BSD versions.
 .SH AUTHORS
 Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric
 S. Raymond.
 .SH AUTHORS
 Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric
 S. Raymond.

-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End: