doc/html/ada/terminal_interface-curses-forms-field_types__adb.htm

   1 <HTML><HEAD><TITLE>terminal_interface-curses-forms-field_types.adb</TITLE></HEAD>
   2 <BODY>
   3 <HR><DIV ALIGN="center"><H1> File : terminal_interface-curses-forms-field_types.adb </H1></DIV><HR>
   4 <PRE>
   5 <FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT>
   6 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
   7 <FONT COLOR=green><EM>--                           <A HREF="http://www.gnat.com">GNAT</A> ncurses Binding                           --</EM></FONT>
   8 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
   9 <FONT COLOR=green><EM>--                 Terminal_Interface.Curses.Forms.Field_Types              --</EM></FONT>
  10 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
  11 <FONT COLOR=green><EM>--                                 B O D Y                                  --</EM></FONT>
  12 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
  13 <FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT>
  14 <FONT COLOR=green><EM>-- Copyright (c) 1998 Free Software Foundation, Inc.                        --</EM></FONT>
  15 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
  16 <FONT COLOR=green><EM>-- Permission is hereby granted, free of charge, to any person obtaining a  --</EM></FONT>
  17 <FONT COLOR=green><EM>-- copy of this software and associated documentation files (the            --</EM></FONT>
  18 <FONT COLOR=green><EM>-- "Software"), to deal in the Software without restriction, including      --</EM></FONT>
  19 <FONT COLOR=green><EM>-- without limitation the rights to use, copy, modify, merge, publish,      --</EM></FONT>
  20 <FONT COLOR=green><EM>-- distribute, distribute with modifications, sublicense, and/or sell       --</EM></FONT>
  21 <FONT COLOR=green><EM>-- copies of the Software, and to permit persons to whom the Software is    --</EM></FONT>
  22 <FONT COLOR=green><EM>-- furnished to do so, subject to the following conditions:                 --</EM></FONT>
  23 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
  24 <FONT COLOR=green><EM>-- The above copyright notice and this permission notice shall be included  --</EM></FONT>
  25 <FONT COLOR=green><EM>-- in all copies or substantial portions of the Software.                   --</EM></FONT>
  26 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
  27 <FONT COLOR=green><EM>-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  --</EM></FONT>
  28 <FONT COLOR=green><EM>-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               --</EM></FONT>
  29 <FONT COLOR=green><EM>-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   --</EM></FONT>
  30 <FONT COLOR=green><EM>-- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   --</EM></FONT>
  31 <FONT COLOR=green><EM>-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    --</EM></FONT>
  32 <FONT COLOR=green><EM>-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    --</EM></FONT>
  33 <FONT COLOR=green><EM>-- THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               --</EM></FONT>
  34 <FONT COLOR=green><EM>--                                                                          --</EM></FONT>
  35 <FONT COLOR=green><EM>-- Except as contained in this notice, the name(s) of the above copyright   --</EM></FONT>
  36 <FONT COLOR=green><EM>-- holders shall not be used in advertising or otherwise to promote the     --</EM></FONT>
  37 <FONT COLOR=green><EM>-- sale, use or other dealings in this Software without prior written       --</EM></FONT>
  38 <FONT COLOR=green><EM>-- authorization.                                                           --</EM></FONT>
  39 <FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT>
  40 <FONT COLOR=green><EM>--  Author:  <A HREF="http://www.familiepfeifer.de/juergen">J&uuml;rgen Pfeifer</A>, 1996</EM></FONT>
  41 <FONT COLOR=green><EM>--  Contact: <A HREF="http://www.familiepfeifer.de/Contact.aspx?Lang=en">www.familiepfeifer.de/Contact.aspx?Lang=en</A></EM></FONT>
  42 <FONT COLOR=green><EM>--  Version Control:</EM></FONT>
  43 <FONT COLOR=green><EM>--  @Revision: 1.13 @</EM></FONT>
  44 <FONT COLOR=green><EM>--  Binding Version 01.00</EM></FONT>
  45 <FONT COLOR=green><EM>------------------------------------------------------------------------------</EM></FONT>
  46 <b>with</b> <A HREF="interfac__ads.htm#23_9">Interfaces</A>.C;
  47 <b>with</b> <A HREF="terminal_interface__ads.htm#42_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#49_28">Curses</A>.<A HREF="terminal_interface-curses-aux__ads.htm#51_35">Aux</A>; <b>use</b> <A HREF="terminal_interface__ads.htm#42_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#49_28">Curses</A>.<A HREF="terminal_interface-curses-aux__ads.htm#51_35">Aux</A>;
  48 <b>with</b> Ada.Unchecked_Deallocation;
  49 <b>with</b> Ada.Unchecked_Conversion;
  50 <FONT COLOR=green><EM>--  |</EM></FONT>
  51 <FONT COLOR=green><EM>--  |=====================================================================</EM></FONT>
  52 <FONT COLOR=green><EM>--  | man page form_fieldtype.3x</EM></FONT>
  53 <FONT COLOR=green><EM>--  |=====================================================================</EM></FONT>
  54 <FONT COLOR=green><EM>--  |</EM></FONT>
  55 <b>package</b> <b>body</b> <A HREF="terminal_interface__ads.htm#42_9">Terminal_Interface</A>.<A HREF="terminal_interface-curses__ads.htm#49_28">Curses</A>.<A HREF="terminal_interface-curses-forms__ads.htm#49_35">Forms</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#44_41">Field_Types</A><FONT COLOR=red><A NAME="51_46"></A></FONT> <b>is</b>
  56
  57    <b>use</b> <b>type</b> <A HREF="interfac__ads.htm#23_9">Interfaces</A>.C.int;
  58    <b>use</b> <b>type</b> System.Address;
  59
  60    <b>function</b> <FONT COLOR=red><A NAME="56_13">To_Argument_Access</A></FONT> <b>is</b> <b>new</b> Ada.Unchecked_Conversion
  61      (System.Address, <A HREF="terminal_interface-curses-forms-field_types__ads.htm#217_9">Argument_Access</A>);
  62
  63    <b>function</b> <FONT COLOR=red><A NAME="59_13">Get_Fieldtype</A></FONT> (<FONT COLOR=red><A NAME="59_28">F</A></FONT> : <A HREF="terminal_interface-curses-forms__ads.htm#56_9">Field</A>) <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A>;
  64    <b>pragma</b> Import (C, <A HREF="terminal_interface-curses-forms-field_types__adb.htm#59_13">Get_Fieldtype</A>, "field_type");
  65
  66    <b>function</b> <FONT COLOR=red><A NAME="62_13">Get_Arg</A></FONT> (<FONT COLOR=red><A NAME="62_22">F</A></FONT> : <A HREF="terminal_interface-curses-forms__ads.htm#56_9">Field</A>) <b>return</b> System.Address;
  67    <b>pragma</b> Import (C, <A HREF="terminal_interface-curses-forms-field_types__adb.htm#62_13">Get_Arg</A>, "field_arg");
  68    <FONT COLOR=green><EM>--  |</EM></FONT>
  69    <FONT COLOR=green><EM>--  |=====================================================================</EM></FONT>
  70    <FONT COLOR=green><EM>--  | man page form_field_validation.3x</EM></FONT>
  71    <FONT COLOR=green><EM>--  |=====================================================================</EM></FONT>
  72    <FONT COLOR=green><EM>--  |</EM></FONT>
  73    <FONT COLOR=green><EM>--  |</EM></FONT>
  74    <FONT COLOR=green><EM>--  |</EM></FONT>
  75    <b>function</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#80_13">Get_Type</A><FONT COLOR=red><A NAME="71_13"></A></FONT> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#80_23">Fld</A> : <b>in</b> <A HREF="terminal_interface-curses-forms__ads.htm#56_9">Field</A>) <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#64_9">Field_Type_Access</A>
  76    <b>is</b>
  77       <FONT COLOR=red><A NAME="73_7">Low_Level</A></FONT> : <b>constant</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#59_13">Get_Fieldtype</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#80_23">Fld</A>);
  78       <FONT COLOR=red><A NAME="74_7">Arg</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#217_9">Argument_Access</A>;
  79    <b>begin</b>
  80       <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#73_7">Low_Level</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A> <b>then</b>
  81          <b>return</b> <b>null</b>;
  82       <b>else</b>
  83          <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#73_7">Low_Level</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#144_4">M_Builtin_Router</A> <b>or</b> <b>else</b>
  84            <A HREF="terminal_interface-curses-forms-field_types__adb.htm#73_7">Low_Level</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#142_4">M_Generic_Type</A> <b>or</b> <b>else</b>
  85            <A HREF="terminal_interface-curses-forms-field_types__adb.htm#73_7">Low_Level</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#145_4">M_Choice_Router</A> <b>or</b> <b>else</b>
  86            <A HREF="terminal_interface-curses-forms-field_types__adb.htm#73_7">Low_Level</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#143_4">M_Generic_Choice</A> <b>then</b>
  87             <A HREF="terminal_interface-curses-forms-field_types__adb.htm#74_7">Arg</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#56_13">To_Argument_Access</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#62_13">Get_Arg</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#80_23">Fld</A>));
  88             <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#74_7">Arg</A> = <b>null</b> <b>then</b>
  89                <b>raise</b> <A HREF="terminal_interface-curses-forms__ads.htm#289_4">Form_Exception</A>;
  90             <b>else</b>
  91                <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#74_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#213_7">Typ</A>;
  92             <b>end</b> <b>if</b>;
  93          <b>else</b>
  94             <b>raise</b> <A HREF="terminal_interface-curses-forms__ads.htm#289_4">Form_Exception</A>;
  95          <b>end</b> <b>if</b>;
  96       <b>end</b> <b>if</b>;
  97    <b>end</b> Get_Type;
  98
  99    <b>function</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#163_13">Make_Arg</A><FONT COLOR=red><A NAME="95_13"></A></FONT> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#163_23">Args</A> : System.Address) <b>return</b> System.Address
 100    <b>is</b>
 101       <FONT COLOR=green><EM>--  Actually args is a double indirected pointer to the arguments</EM></FONT>
 102       <FONT COLOR=green><EM>--  of a C variable argument list. In theory it is now quite</EM></FONT>
 103       <FONT COLOR=green><EM>--  complicated to write portable routine that reads the arguments,</EM></FONT>
 104       <FONT COLOR=green><EM>--  because one has to know the growth direction of the stack and</EM></FONT>
 105       <FONT COLOR=green><EM>--  the sizes of the individual arguments.</EM></FONT>
 106       <FONT COLOR=green><EM>--  Fortunately we are only interested in the first argument (#0),</EM></FONT>
 107       <FONT COLOR=green><EM>--  we know its size and for the first arg we don't care about</EM></FONT>
 108       <FONT COLOR=green><EM>--  into which stack direction we have to proceed. We simply</EM></FONT>
 109       <FONT COLOR=green><EM>--  resolve the double indirection and thats it.</EM></FONT>
 110       <b>type</b> <FONT COLOR=red><A NAME="106_12">V</A></FONT> <b>is</b> <b>access</b> <b>all</b> System.Address;
 111       <b>function</b> <FONT COLOR=red><A NAME="107_16">To_Access</A></FONT> <b>is</b> <b>new</b> Ada.Unchecked_Conversion (System.Address,
 112                                                           <A HREF="terminal_interface-curses-forms-field_types__adb.htm#106_12">V</A>);
 113    <b>begin</b>
 114       <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#107_16">To_Access</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#107_16">To_Access</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#163_23">Args</A>).<b>all</b>).<b>all</b>;
 115    <b>end</b> Make_Arg;
 116
 117    <b>function</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#168_13">Copy_Arg</A><FONT COLOR=red><A NAME="113_13"></A></FONT> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#168_23">Usr</A> : System.Address) <b>return</b> System.Address
 118    <b>is</b>
 119    <b>begin</b>
 120       <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#168_23">Usr</A>;
 121    <b>end</b> Copy_Arg;
 122
 123    <b>procedure</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#173_14">Free_Arg</A><FONT COLOR=red><A NAME="119_14"></A></FONT> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#173_24">Usr</A> : <b>in</b> System.Address)
 124    <b>is</b>
 125       <b>procedure</b> <FONT COLOR=red><A NAME="121_17">Free_Type</A></FONT> <b>is</b> <b>new</b> Ada.Unchecked_Deallocation
 126         (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#53_9">Field_Type</A>'Class, <A HREF="terminal_interface-curses-forms-field_types__ads.htm#64_9">Field_Type_Access</A>);
 127       <b>procedure</b> <FONT COLOR=red><A NAME="123_17">Freeargs</A></FONT> <b>is</b> <b>new</b> Ada.Unchecked_Deallocation
 128         (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#212_9">Argument</A>, <A HREF="terminal_interface-curses-forms-field_types__ads.htm#217_9">Argument_Access</A>);
 129
 130       <FONT COLOR=red><A NAME="126_7">To_Be_Free</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#217_9">Argument_Access</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#56_13">To_Argument_Access</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#173_24">Usr</A>);
 131       <FONT COLOR=red><A NAME="127_7">Low_Level</A></FONT>  : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A>;
 132    <b>begin</b>
 133       <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#126_7">To_Be_Free</A> /= <b>null</b> <b>then</b>
 134          <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#126_7">To_Be_Free</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#214_7">Usr</A> /= System.Null_Address <b>then</b>
 135             <A HREF="terminal_interface-curses-forms-field_types__adb.htm#127_7">Low_Level</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#126_7">To_Be_Free</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#215_7">Cft</A>;
 136             <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#127_7">Low_Level</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#127_10">Freearg</A> /= <b>null</b> <b>then</b>
 137                <A HREF="terminal_interface-curses-forms-field_types__adb.htm#127_7">Low_Level</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#127_10">Freearg</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#126_7">To_Be_Free</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#214_7">Usr</A>);
 138             <b>end</b> <b>if</b>;
 139          <b>end</b> <b>if</b>;
 140          <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#126_7">To_Be_Free</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#213_7">Typ</A> /= <b>null</b> <b>then</b>
 141             <A HREF="terminal_interface-curses-forms-field_types__adb.htm#121_17">Free_Type</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#126_7">To_Be_Free</A>.<A HREF="terminal_interface-curses-forms-field_types__adb.htm#126_7">Typ</A>);
 142          <b>end</b> <b>if</b>;
 143          <A HREF="terminal_interface-curses-forms-field_types__adb.htm#123_17">Freeargs</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#126_7">To_Be_Free</A>);
 144       <b>end</b> <b>if</b>;
 145    <b>end</b> Free_Arg;
 146
 147
 148    <b>procedure</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#152_14">Wrap_Builtin</A><FONT COLOR=red><A NAME="144_14"></A></FONT> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#152_28">Fld</A> : <A HREF="terminal_interface-curses-forms__ads.htm#56_9">Field</A>;
 149                            <A HREF="terminal_interface-curses-forms-field_types__ads.htm#153_28">Typ</A> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#53_9">Field_Type</A>'Class;
 150                            <A HREF="terminal_interface-curses-forms-field_types__ads.htm#154_28">Cft</A> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#149_13">C_Builtin_Router</A>)
 151    <b>is</b>
 152       <FONT COLOR=red><A NAME="148_7">Usr_Arg</A></FONT>   : System.Address := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#62_13">Get_Arg</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#152_28">Fld</A>);
 153       <FONT COLOR=red><A NAME="149_7">Low_Level</A></FONT> : <b>constant</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#59_13">Get_Fieldtype</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#152_28">Fld</A>);
 154       <FONT COLOR=red><A NAME="150_7">Arg</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#217_9">Argument_Access</A>;
 155       <FONT COLOR=red><A NAME="151_7">Res</A></FONT> : <A HREF="terminal_interface-curses-aux__ads.htm#79_12">Eti_Error</A>;
 156       <b>function</b> <FONT COLOR=red><A NAME="152_16">Set_Fld_Type</A></FONT> (<FONT COLOR=red><A NAME="152_30">F</A></FONT>    : <A HREF="terminal_interface-curses-forms__ads.htm#56_9">Field</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#152_28">Fld</A>;
 157                              <FONT COLOR=red><A NAME="153_30">Cf</A></FONT>   : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#154_28">Cft</A>;
 158                              <FONT COLOR=red><A NAME="154_30">Arg1</A></FONT> : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#217_9">Argument_Access</A>) <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#47_12">C_Int</A>;
 159       <b>pragma</b> Import (C, <A HREF="terminal_interface-curses-forms-field_types__adb.htm#152_16">Set_Fld_Type</A>, "set_field_type");
 160
 161    <b>begin</b>
 162       <b>pragma</b> Assert (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#149_7">Low_Level</A> /= <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A>);
 163       <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#154_28">Cft</A> /= <A HREF="terminal_interface-curses-forms-field_types__ads.htm#149_13">C_Builtin_Router</A> <b>and</b> <b>then</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#154_28">Cft</A> /= <A HREF="terminal_interface-curses-forms-field_types__ads.htm#150_13">C_Choice_Router</A> <b>then</b>
 164          <b>raise</b> <A HREF="terminal_interface-curses-forms__ads.htm#289_4">Form_Exception</A>;
 165       <b>else</b>
 166          <A HREF="terminal_interface-curses-forms-field_types__adb.htm#150_7">Arg</A> := <b>new</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#212_9">Argument</A>'(Usr =&gt; System.Null_Address,
 167                               Typ =&gt; <b>new</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#53_9">Field_Type</A>'Class'(<A HREF="terminal_interface-curses-forms-field_types__ads.htm#153_28">Typ</A>),
 168                               Cft =&gt; <A HREF="terminal_interface-curses-forms-field_types__adb.htm#59_13">Get_Fieldtype</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#152_28">Fld</A>));
 169          <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#148_7">Usr_Arg</A> /= System.Null_Address <b>then</b>
 170             <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#149_7">Low_Level</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#126_10">Copyarg</A> /= <b>null</b> <b>then</b>
 171                <A HREF="terminal_interface-curses-forms-field_types__adb.htm#150_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__adb.htm#150_7">Usr</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#149_7">Low_Level</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#126_10">Copyarg</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#148_7">Usr_Arg</A>);
 172             <b>else</b>
 173                <A HREF="terminal_interface-curses-forms-field_types__adb.htm#150_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__adb.htm#150_7">Usr</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#148_7">Usr_Arg</A>;
 174             <b>end</b> <b>if</b>;
 175          <b>end</b> <b>if</b>;
 176
 177          <A HREF="terminal_interface-curses-forms-field_types__adb.htm#151_7">Res</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#152_16">Set_Fld_Type</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#154_30">Arg1</A> =&gt; <A HREF="terminal_interface-curses-forms-field_types__adb.htm#150_7">Arg</A>);
 178          <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#151_7">Res</A> /= <A HREF="terminal_interface-curses-aux__ads.htm#81_4">E_Ok</A> <b>then</b>
 179             <A HREF="terminal_interface-curses-aux__ads.htm#97_14">Eti_Exception</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#151_7">Res</A>);
 180          <b>end</b> <b>if</b>;
 181       <b>end</b> <b>if</b>;
 182    <b>end</b> Wrap_Builtin;
 183
 184    <b>function</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#178_13">Field_Check_Router</A><FONT COLOR=red><A NAME="180_13"></A></FONT> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#178_33">Fld</A> : <A HREF="terminal_interface-curses-forms__ads.htm#56_9">Field</A>;
 185                                 <A HREF="terminal_interface-curses-forms-field_types__ads.htm#179_33">Usr</A> : System.Address) <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#47_12">C_Int</A>
 186    <b>is</b>
 187       <FONT COLOR=red><A NAME="183_7">Arg</A></FONT>  : <b>constant</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#217_9">Argument_Access</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#56_13">To_Argument_Access</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#179_33">Usr</A>);
 188    <b>begin</b>
 189       <b>pragma</b> Assert (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#183_7">Arg</A> /= <b>null</b> <b>and</b> <b>then</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#183_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#215_7">Cft</A> /= <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A>
 190                      <b>and</b> <b>then</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#183_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#213_7">Typ</A> /= <b>null</b>);
 191       <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#183_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#215_7">Cft</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#128_10">Fcheck</A> /= <b>null</b> <b>then</b>
 192          <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#183_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#215_7">Cft</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#128_10">Fcheck</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#178_33">Fld</A>, <A HREF="terminal_interface-curses-forms-field_types__adb.htm#183_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#214_7">Usr</A>);
 193       <b>else</b>
 194          <b>return</b> 1;
 195       <b>end</b> <b>if</b>;
 196    <b>end</b> Field_Check_Router;
 197
 198    <b>function</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#186_13">Char_Check_Router</A><FONT COLOR=red><A NAME="194_13"></A></FONT> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#186_32">Ch</A>  : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#47_12">C_Int</A>;
 199                                <A HREF="terminal_interface-curses-forms-field_types__ads.htm#187_32">Usr</A> : System.Address) <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#47_12">C_Int</A>
 200    <b>is</b>
 201       <FONT COLOR=red><A NAME="197_7">Arg</A></FONT>  : <b>constant</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#217_9">Argument_Access</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#56_13">To_Argument_Access</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#187_32">Usr</A>);
 202    <b>begin</b>
 203       <b>pragma</b> Assert (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#197_7">Arg</A> /= <b>null</b> <b>and</b> <b>then</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#197_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#215_7">Cft</A> /= <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A>
 204                      <b>and</b> <b>then</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#197_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#213_7">Typ</A> /= <b>null</b>);
 205       <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#197_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#215_7">Cft</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#129_10">Ccheck</A> /= <b>null</b> <b>then</b>
 206          <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#197_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#215_7">Cft</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#129_10">Ccheck</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#186_32">Ch</A>, <A HREF="terminal_interface-curses-forms-field_types__adb.htm#197_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#214_7">Usr</A>);
 207       <b>else</b>
 208          <b>return</b> 1;
 209       <b>end</b> <b>if</b>;
 210    <b>end</b> Char_Check_Router;
 211
 212    <b>function</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#194_13">Next_Router</A><FONT COLOR=red><A NAME="208_13"></A></FONT> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#194_26">Fld</A> : <A HREF="terminal_interface-curses-forms__ads.htm#56_9">Field</A>;
 213                          <A HREF="terminal_interface-curses-forms-field_types__ads.htm#195_26">Usr</A> : System.Address) <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#47_12">C_Int</A>
 214    <b>is</b>
 215       <FONT COLOR=red><A NAME="211_7">Arg</A></FONT>  : <b>constant</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#217_9">Argument_Access</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#56_13">To_Argument_Access</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#195_26">Usr</A>);
 216    <b>begin</b>
 217       <b>pragma</b> Assert (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#211_7">Arg</A> /= <b>null</b> <b>and</b> <b>then</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#211_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#215_7">Cft</A> /= <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A>
 218                      <b>and</b> <b>then</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#211_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#213_7">Typ</A> /= <b>null</b>);
 219       <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#211_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#215_7">Cft</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#130_10">Next</A> /= <b>null</b> <b>then</b>
 220          <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#211_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#215_7">Cft</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#130_10">Next</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#194_26">Fld</A>, <A HREF="terminal_interface-curses-forms-field_types__adb.htm#211_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#214_7">Usr</A>);
 221       <b>else</b>
 222          <b>return</b> 1;
 223       <b>end</b> <b>if</b>;
 224    <b>end</b> Next_Router;
 225
 226    <b>function</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#202_13">Prev_Router</A><FONT COLOR=red><A NAME="222_13"></A></FONT> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#202_26">Fld</A> : <A HREF="terminal_interface-curses-forms__ads.htm#56_9">Field</A>;
 227                          <A HREF="terminal_interface-curses-forms-field_types__ads.htm#203_26">Usr</A> : System.Address) <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#47_12">C_Int</A>
 228    <b>is</b>
 229       <FONT COLOR=red><A NAME="225_7">Arg</A></FONT>  : <b>constant</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#217_9">Argument_Access</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#56_13">To_Argument_Access</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#203_26">Usr</A>);
 230    <b>begin</b>
 231       <b>pragma</b> Assert (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#225_7">Arg</A> /= <b>null</b> <b>and</b> <b>then</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#225_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#215_7">Cft</A> /= <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A>
 232                      <b>and</b> <b>then</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#225_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#213_7">Typ</A> /= <b>null</b>);
 233       <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#225_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#215_7">Cft</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#130_16">Prev</A> /= <b>null</b> <b>then</b>
 234          <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#225_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#215_7">Cft</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#130_16">Prev</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#202_26">Fld</A>, <A HREF="terminal_interface-curses-forms-field_types__adb.htm#225_7">Arg</A>.<A HREF="terminal_interface-curses-forms-field_types__ads.htm#214_7">Usr</A>);
 235       <b>else</b>
 236          <b>return</b> 1;
 237       <b>end</b> <b>if</b>;
 238    <b>end</b> Prev_Router;
 239
 240    <FONT COLOR=green><EM>--  -----------------------------------------------------------------------</EM></FONT>
 241    <FONT COLOR=green><EM>--</EM></FONT>
 242    <b>function</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#149_13">C_Builtin_Router</A><FONT COLOR=red><A NAME="238_13"></A></FONT> <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A>
 243    <b>is</b>
 244       <FONT COLOR=red><A NAME="240_7">Res</A></FONT> : <A HREF="terminal_interface-curses-aux__ads.htm#79_12">Eti_Error</A>;
 245       <FONT COLOR=red><A NAME="241_7">T</A></FONT>   : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A>;
 246    <b>begin</b>
 247       <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#144_4">M_Builtin_Router</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A> <b>then</b>
 248          <A HREF="terminal_interface-curses-forms-field_types__adb.htm#241_7">T</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#223_13">New_Fieldtype</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#178_13">Field_Check_Router</A>'<b>Access</b>,
 249                              <A HREF="terminal_interface-curses-forms-field_types__ads.htm#186_13">Char_Check_Router</A>'<b>Access</b>);
 250          <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#241_7">T</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A> <b>then</b>
 251             <b>raise</b> <A HREF="terminal_interface-curses-forms__ads.htm#289_4">Form_Exception</A>;
 252          <b>else</b>
 253             <A HREF="terminal_interface-curses-forms-field_types__adb.htm#240_7">Res</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#228_13">Set_Fieldtype_Arg</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#241_7">T</A>,
 254                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#163_13">Make_Arg</A>'<b>Access</b>,
 255                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#168_13">Copy_Arg</A>'<b>Access</b>,
 256                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#173_14">Free_Arg</A>'<b>Access</b>);
 257             <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#240_7">Res</A> /= <A HREF="terminal_interface-curses-aux__ads.htm#81_4">E_Ok</A> <b>then</b>
 258                <A HREF="terminal_interface-curses-aux__ads.htm#97_14">Eti_Exception</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#240_7">Res</A>);
 259             <b>end</b> <b>if</b>;
 260          <b>end</b> <b>if</b>;
 261          <A HREF="terminal_interface-curses-forms-field_types__ads.htm#144_4">M_Builtin_Router</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#241_7">T</A>;
 262       <b>end</b> <b>if</b>;
 263       <b>pragma</b> Assert (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#144_4">M_Builtin_Router</A> /= <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A>);
 264       <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#144_4">M_Builtin_Router</A>;
 265    <b>end</b> C_Builtin_Router;
 266
 267    <FONT COLOR=green><EM>--  -----------------------------------------------------------------------</EM></FONT>
 268    <FONT COLOR=green><EM>--</EM></FONT>
 269    <b>function</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#150_13">C_Choice_Router</A><FONT COLOR=red><A NAME="265_13"></A></FONT> <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A>
 270    <b>is</b>
 271       <FONT COLOR=red><A NAME="267_7">Res</A></FONT> : <A HREF="terminal_interface-curses-aux__ads.htm#79_12">Eti_Error</A>;
 272       <FONT COLOR=red><A NAME="268_7">T</A></FONT>   : <A HREF="terminal_interface-curses-forms-field_types__ads.htm#133_9">C_Field_Type</A>;
 273    <b>begin</b>
 274       <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#145_4">M_Choice_Router</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A> <b>then</b>
 275          <A HREF="terminal_interface-curses-forms-field_types__adb.htm#268_7">T</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#223_13">New_Fieldtype</A> (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#178_13">Field_Check_Router</A>'<b>Access</b>,
 276                              <A HREF="terminal_interface-curses-forms-field_types__ads.htm#186_13">Char_Check_Router</A>'<b>Access</b>);
 277          <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#268_7">T</A> = <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A> <b>then</b>
 278             <b>raise</b> <A HREF="terminal_interface-curses-forms__ads.htm#289_4">Form_Exception</A>;
 279          <b>else</b>
 280             <A HREF="terminal_interface-curses-forms-field_types__adb.htm#267_7">Res</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#228_13">Set_Fieldtype_Arg</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#268_7">T</A>,
 281                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#163_13">Make_Arg</A>'<b>Access</b>,
 282                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#168_13">Copy_Arg</A>'<b>Access</b>,
 283                                       <A HREF="terminal_interface-curses-forms-field_types__ads.htm#173_14">Free_Arg</A>'<b>Access</b>);
 284             <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#267_7">Res</A> /= <A HREF="terminal_interface-curses-aux__ads.htm#81_4">E_Ok</A> <b>then</b>
 285                <A HREF="terminal_interface-curses-aux__ads.htm#97_14">Eti_Exception</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#267_7">Res</A>);
 286             <b>end</b> <b>if</b>;
 287
 288             <A HREF="terminal_interface-curses-forms-field_types__adb.htm#267_7">Res</A> := <A HREF="terminal_interface-curses-forms-field_types__ads.htm#235_13">Set_Fieldtype_Choice</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#268_7">T</A>,
 289                                          <A HREF="terminal_interface-curses-forms-field_types__ads.htm#194_13">Next_Router</A>'<b>Access</b>,
 290                                          <A HREF="terminal_interface-curses-forms-field_types__ads.htm#202_13">Prev_Router</A>'<b>Access</b>);
 291             <b>if</b> <A HREF="terminal_interface-curses-forms-field_types__adb.htm#267_7">Res</A> /= <A HREF="terminal_interface-curses-aux__ads.htm#81_4">E_Ok</A> <b>then</b>
 292                <A HREF="terminal_interface-curses-aux__ads.htm#97_14">Eti_Exception</A> (<A HREF="terminal_interface-curses-forms-field_types__adb.htm#267_7">Res</A>);
 293             <b>end</b> <b>if</b>;
 294          <b>end</b> <b>if</b>;
 295          <A HREF="terminal_interface-curses-forms-field_types__ads.htm#145_4">M_Choice_Router</A> := <A HREF="terminal_interface-curses-forms-field_types__adb.htm#268_7">T</A>;
 296       <b>end</b> <b>if</b>;
 297       <b>pragma</b> Assert (<A HREF="terminal_interface-curses-forms-field_types__ads.htm#145_4">M_Choice_Router</A> /= <A HREF="terminal_interface-curses-forms-field_types__ads.htm#135_4">Null_Field_Type</A>);
 298       <b>return</b> <A HREF="terminal_interface-curses-forms-field_types__ads.htm#145_4">M_Choice_Router</A>;
 299    <b>end</b> C_Choice_Router;
 300
 301 <b>end</b> Terminal_Interface.Curses.Forms.Field_Types;
 302 </PRE></BODY></HTML>