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------------------------------------------------------------------------------
-- --
-- ASIS Tester And iNTerpreter (ASIStant) COMPONENTS --
-- --
-- A S I S T A N T . H E L P --
-- --
-- B o d y --
-- --
-- Copyright (c) 1997-2000, Free Software Foundation, Inc. --
-- --
-- ASIStant is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the Free --
-- Software Foundation; either version 2, or (at your option) any later --
-- version. ASIStant is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of MER- --
-- CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General --
-- Public License for more details. You should have received a copy of the --
-- GNU General Public License distributed with GNAT; see file COPYING. If --
-- not, write to the Free Software Foundation, 59 Temple Place Suite 330, --
-- Boston, MA 02111-1307, USA. --
-- --
-- ASIStant is an evolution of ASIStint tool that was created by --
-- Vasiliy Fofanov as part of a collaboration between Software Engineering --
-- Laboratory of the Swiss Federal Institute of Technology in Lausanne, --
-- Switzerland, and the Scientific Research Computer Center of the Moscow --
-- University, Russia, supported by the Swiss National Science Foundation --
-- grant #7SUPJ048247, "Development of ASIS for GNAT with industry quality" --
-- --
-- ASIStant is distributed as a part of the ASIS implementation for GNAT --
-- (ASIS-for-GNAT) and is maintained by Ada Core Technologies Inc --
-- (http ://www.gnat.com). --
------------------------------------------------------------------------------
with Asis; use Asis;
with Asis.Implementation;
with Asis.Extensions.Flat_Kinds; use Asis.Extensions.Flat_Kinds;
with ASIStant.Ambiguous_Mapping; use ASIStant.Ambiguous_Mapping;
with ASIStant.Call; use ASIStant.Call;
with ASIStant.Common; use ASIStant.Common;
with ASIStant.S_Parser; use ASIStant.S_Parser;
with ASIStant.Table; use ASIStant.Table;
with ASIStant.String_Handling; use ASIStant.String_Handling;
with ASIStant.Text_IO; use ASIStant.Text_IO;
with ASIStant.Help.Queries;
with ASIStant.FuncEnum; use ASIStant.FuncEnum;
package body ASIStant.Help is
-----------------------
-- Local subprograms --
-----------------------
procedure Display_Query_Help (SW : Switch_Index);
-- Displays help for a given ASIStant or ASIS query
procedure Display_Syntax (SW : Switch_Index; SYNT : Func_Syntax);
-- Displays the text representation of a given syntax structure
-----------------------
-- Display_Kind_Help --
-----------------------
procedure Display_Kind_Help (K : Flat_Element_Kinds) is
use ASIStant.Help.Queries;
Q : constant Query_List := Appropriate_Queries (K);
begin
ATIPut_Line (
"Appropriate ASIS structural queries for " &
To_Proper (Flat_Element_Kinds'Wide_Image (K)) & ":");
if Q (1) = Invalid_Index then
ATIPut_Line (" None.");
else
for I in Q'Range loop
exit when Q (I) = Invalid_Index;
ATIPut_Line (" " & To_Proper (Switch_Index'Wide_Image (Q (I))));
end loop;
end if;
end Display_Kind_Help;
-----------------------
-- Display_Query_Help --
-----------------------
procedure Display_Query_Help (SW : Switch_Index) is
T : Func_Syntax;
Amb : Amb_Index;
begin
ATIPut_Line (To_Proper (Switch_Index'Wide_Image (SW)) & " syntax:");
for I in Switch_Info'Range loop
if SW in Switch_Info (I).From .. Switch_Info (I).To then
T := Switch_Info (I).Synt;
exit;
end if;
end loop;
begin
Amb := Amb_Index'Value (Switch_Index'Image (SW));
for i in 1 .. AI_LENGTH loop
exit when Amb_Info (Amb, i).New_Index = Invalid_Index;
Display_Syntax (SW, Amb_Info (Amb, i).Synt);
end loop;
exception
when Constraint_Error => Display_Syntax (SW, T);
end;
end Display_Query_Help;
--------------------
-- Display_Syntax --
--------------------
procedure Display_Syntax (SW : Switch_Index; SYNT : Func_Syntax) is
begin
ATIPut (" ");
ATIPut (To_Proper (Switch_Index'Wide_Image (SW)));
if SYNT (1) /= Par_Absent then
ATIPut (" (");
end if;
for i in Parameter_Range loop
exit when SYNT (i) = Par_Absent;
if i /= 1 then
ATIPut (", ");
end if;
ATIPut (Skip_Prefix (Func_Param'Wide_Image (SYNT (i))));
end loop;
if SYNT (1) /= Par_Absent then
ATIPut (")");
end if;
if SYNT (0) /= Par_Absent then
ATIPut (" return ");
ATIPut (Skip_Prefix (Func_Param'Wide_Image (SYNT (0))));
end if;
ATINew_Line;
end Display_Syntax;
--------------
-- ASISHelp --
--------------
procedure ASISHelp is
begin
Print_ASIStant_Header;
ATINew_Line;
ATIPut_Line ("ASIS and ASIStant Technical and Copyright Information :");
ATINew_Line;
ATIPut (" Asis Version : ");
ATIPut_Line (Asis.Implementation.ASIS_Version);
ATIPut (" Asis Implementor Version : ");
ATIPut_Line (Asis.Implementation.ASIS_Implementor_Version);
ATIPut (" Asis Implementor : ");
ATIPut_Line (Asis.Implementation.ASIS_Implementor);
ATIPut (" Asis Implementor Info : ");
ATIPut_Line (Asis.Implementation.ASIS_Implementor_Information);
ATINew_Line;
ATIPut_Line (" ASIStant author Info : "
& "Vasiliy Fofanov, ASIS-for-GNAT team at ACT Inc.");
ATIPut_Line (
" Email : fofanov@act-europe.fr");
ATIPut_Line (" ASIStant status :");
if Log then
ATIPut_Line (" Log enabled. Output Level : "
& Integer'Wide_Image (OutputLevel));
else
ATIPut_Line (" Log disabled.");
end if;
if Script > 0 then
ATIPut_Line (" Script enabled (level " &
Integer'Wide_Image (Script) & ") and is in " &
Script_Mode'Wide_Image (ScriptMode) & " mode.");
else
ATIPut_Line (" Script disabled.");
end if;
end ASISHelp;
----------
-- Help --
----------
procedure Help (NP : Node_Position) is
N : Node := CurStat.Tree (NP);
begin
if N.NValue = 0 then -- general help
Print_ASIStant_Header;
ATINew_Line;
ATIPut_Line ("List of ASIStant utilities :");
ATINew_Line;
ATIPut_Line (" HELP (<topic-name>) "
& " Displays help for a specific <topic-name>");
ATIPut_Line (" IF (<bool-expr>,<expr1>[,<expr2>]) Executes <expr1> "
& "if <bool-expr> is true,");
ATIPut_Line (" otherwise, "
& "executes <expr2> if present");
ATIPut_Line (" INFO Displays ASIS and ASIStant "
& "technical info");
ATIPut_Line (" LOG [(""<filename>"")] Opens file as a current "
& "log/closes current log");
ATIPut_Line (" LOGLEVEL (<level>) Sets a logging level to "
& "integer <level>, 0..5");
ATIPut_Line (" PAUSE Pauses current script");
ATIPut_Line (" PRINT (<variable>) Prints a value "
& "of a variable");
ATIPut_Line (" PRINTDETAIL (""{D|d}{T|t}"") Changes PRINT settings");
ATIPut_Line (" QUIT [(<exit-status>)] Exits program returning "
& "<exit-status> or 0");
ATIPut_Line (" RUN [(""<filename>"")] Launches script "
& "<filename>/resumes paused script");
ATIPut_Line (" (IRUN = interactively)");
ATIPut_Line (" SET ( <ID>, <expr> ) Declares or changes "
& "variable <ID>");
ATINew_Line;
ATIPut_Line ("Please refer to ASIStant User's Guide for more "
& "information.");
else -- specific help
N := CurStat.Tree (N.NValue); -- receive parameter list
N := CurStat.Tree (N.NValue); -- receive first element
-- Determine type of requested help
-- Is query help requested?
declare
sw : Switch_Index;
begin
sw := Switch_Index'Wide_Value (N.SValue.all);
Display_Query_Help (sw);
return;
exception
when others =>
null; -- trap exception if query unknown
end;
-- Is Flat_Element_Kind help requested?
declare
K : Flat_Element_Kinds;
begin
K := Flat_Element_Kinds'Wide_Value (N.SValue.all);
Display_Kind_Help (K);
return;
exception
when others =>
null; -- trap exception if Flat_Element_Kind unknown
end;
-- If we are here, the topic wasn't recognized
Error (ERR_UNKNOWNQUERY, N.SValue.all);
end if;
end Help;
end ASIStant.Help;
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