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- * @Id: form_field_validation.3x,v 1.16 2006/12/24 16:08:08 tom Exp @
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-<H1>form_field_validation 3x</H1>
-<HR>
+<H1 class="no-header">form_field_validation 3x</H1>
<PRE>
-<!-- Manpage converted by man2html 3.0.1 -->
<STRONG><A HREF="form_field_validation.3x.html">form_field_validation(3x)</A></STRONG> <STRONG><A HREF="form_field_validation.3x.html">form_field_validation(3x)</A></STRONG>
-</PRE>
-<H2>NAME</H2><PRE>
+</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
<STRONG>form_field_validation</STRONG> - data type validation for fields
-</PRE>
-<H2>SYNOPSIS</H2><PRE>
+</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>#include</STRONG> <STRONG><form.h></STRONG>
int set_field_type(FIELD *field, FIELDTYPE *type, ...);
FIELDTYPE *field_type(const FIELD *field);
FIELDTYPE *TYPE_IPV4;
-</PRE>
-<H2>DESCRIPTION</H2><PRE>
+</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
The function <STRONG>set_field_type</STRONG> declares a data type for a
given form field. This is the type checked by validation
functions. The predefined types are as follows:
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.
+ notice that the string list is copied. So you may use
+ a list that lives in automatic variables on the
+ stack.
TYPE_INTEGER
- Integer data, parsable to an integer by <STRONG>atoi(3)</STRONG>.
- Requires a third <STRONG>int</STRONG> argument controlling the preci-
- sion, a fourth <STRONG>long</STRONG> argument constraining minimum
- value, and a fifth <STRONG>long</STRONG> constraining maximum value.
- If the maximum value is less than or equal to the
+ Integer data, parsable to an integer by <STRONG>atoi(3)</STRONG>.
+ Requires a third <STRONG>int</STRONG> argument controlling the preci-
+ sion, a fourth <STRONG>long</STRONG> argument constraining minimum
+ value, and a fifth <STRONG>long</STRONG> constraining maximum value.
+ 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 <STRONG>printf</STRONG>
- format specification ".*ld", where the '*' is
- replaced by the precision argument. For details of
+ format specification ".*ld", where the '*' is
+ replaced by the precision argument. For details of
the precision handling see <STRONG>printf's</STRONG> man-page.
TYPE_NUMERIC
- Numeric data (may have a decimal-point part).
- Requires a third <STRONG>int</STRONG> argument controlling the preci-
- sion, a fourth <STRONG>double</STRONG> argument constraining minimum
+ Numeric data (may have a decimal-point part).
+ Requires a third <STRONG>int</STRONG> argument controlling the preci-
+ sion, a fourth <STRONG>double</STRONG> argument constraining minimum
value, and a fifth <STRONG>double</STRONG> 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 <STRONG>printf</STRONG> format specification ".*f",
- where the '*' is replaced by the precision argument.
- For details of the precision handling see <STRONG>printf's</STRONG>
+ 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 <STRONG>printf</STRONG> format specification ".*f",
+ where the '*' is replaced by the precision argument.
+ For details of the precision handling see <STRONG>printf's</STRONG>
man-page.
TYPE_REGEXP
- Regular expression data. Requires a regular expres-
- sion <STRONG>(char</STRONG> <STRONG>*)</STRONG> third argument; the data is valid if
- the regular expression matches it. Regular expres-
- sions are in the format of <STRONG>regcomp</STRONG> and <STRONG>regexec</STRONG>.
- Please notice that the regular expression must match
- the whole field. If you have for example an eight
+ Regular expression data. Requires a regular expres-
+ sion <STRONG>(char</STRONG> <STRONG>*)</STRONG> third argument; the data is valid if
+ the regular expression matches it. Regular expres-
+ sions are in the format of <STRONG>regcomp</STRONG> and <STRONG>regexec</STRONG>.
+ 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]*$"
- always means that you have to fill all eight posi-
+ always means that you have to fill all eight posi-
tions with digits. If you want to allow fewer digits,
- you may use for example "^[0-9]* *$" which is good
- for trailing spaces (up to an empty field), or "^
- *[0-9]* *$" which is good for leading and trailing
+ you may use for example "^[0-9]* *$" 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.
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
+ 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 vali-
+ buffer are ignored. The address itself is not vali-
dated. Please note that this is an ncurses extension.
- This field type may not be available in other curses
+ This field type may not be available in other curses
implementations.
- It is possible to set up new programmer-defined field
+ It is possible to set up new programmer-defined field
types. See the <STRONG><A HREF="form_fieldtype.3x.html">form_fieldtype(3x)</A></STRONG> manual page.
-</PRE>
-<H2>RETURN VALUE</H2><PRE>
- The functions <STRONG>field_type</STRONG> and <STRONG>field_arg</STRONG> return <STRONG>NULL</STRONG> on
+</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
+ The functions <STRONG>field_type</STRONG> and <STRONG>field_arg</STRONG> return <STRONG>NULL</STRONG> on
error. The function <STRONG>set_field_type</STRONG> returns one of the fol-
lowing:
System error occurred (see <STRONG>errno</STRONG>).
-</PRE>
-<H2>SEE ALSO</H2><PRE>
- <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG>.
+</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
+ <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG>, <STRONG><A HREF="form_variables.3x.html">form_variables(3x)</A></STRONG>.
-</PRE>
-<H2>NOTES</H2><PRE>
+</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
The header file <STRONG><form.h></STRONG> automatically includes the header
file <STRONG><curses.h></STRONG>.
-</PRE>
-<H2>PORTABILITY</H2><PRE>
- These routines emulate the System V forms library. They
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+ These routines emulate the System V forms library. They
were not supported on Version 7 or BSD versions.
-</PRE>
-<H2>AUTHORS</H2><PRE>
- Juergen Pfeifer. Manual pages and adaptation for new
+</PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
+ Juergen Pfeifer. Manual pages and adaptation for new
curses by Eric S. Raymond.
<STRONG><A HREF="form_field_validation.3x.html">form_field_validation(3x)</A></STRONG>
</PRE>
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-Man(1) output converted with
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+<ul>
+<li><a href="#h2-NAME">NAME</a></li>
+<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
+<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
+<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
+<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
+<li><a href="#h2-NOTES">NOTES</a></li>
+<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
+<li><a href="#h2-AUTHORS">AUTHORS</a></li>
+</ul>
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