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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- X R E F _ L I B --
-- --
-- S p e c --
-- --
-- $Revision$
-- --
-- Copyright (C) 1998-2001 Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- 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. --
-- --
-- GNAT is maintained by Ada Core Technologies Inc (http://www.gnat.com). --
-- --
------------------------------------------------------------------------------
with Hostparm;
with GNAT.Directory_Operations; use GNAT.Directory_Operations;
with GNAT.OS_Lib; use GNAT.OS_Lib;
with GNAT.Dynamic_Tables;
with Xr_Tabls; use Xr_Tabls;
with GNAT.Regexp; use GNAT.Regexp;
-- Misc. utilities for the cross-referencing tool
package Xref_Lib is
subtype File_Name_String is String (1 .. Hostparm.Max_Name_Length);
subtype Line_String is String (1 .. Hostparm.Max_Line_Length);
type ALI_File is limited private;
---------------------
-- Directory Input --
---------------------
type Rec_DIR is limited private;
-- This one is used for recursive search of .ali files
procedure Find_ALI_Files;
-- Find all the ali files that we will have to parse, and have them to
-- the file list
---------------------
-- Search patterns --
---------------------
type Search_Pattern is private;
type Search_Pattern_Ptr is access all Search_Pattern;
procedure Add_Entity
(Pattern : in out Search_Pattern;
Entity : String;
Glob : Boolean := False);
-- Add a new entity to the search pattern (the entity should have the
-- form pattern[:file[:line[:column]]], and it is parsed entirely in
-- this procedure. Glob indicates if we should use the 'globbing
-- patterns' (True) or the full regular expressions (False)
procedure Add_Xref_File (File : String);
-- Add a new file in the list of files to search for references. File
-- is interpreted as a globbing regular expression, which is expanded.
Invalid_Argument : exception;
-- Exception raised when there is a syntax error in the command line
function Match
(Pattern : Search_Pattern;
Symbol : String)
return Boolean;
-- Returns true if Symbol matches one of the entities in the command line
-----------------------
-- Output Algorithms --
-----------------------
procedure Print_Gnatfind
(References : in Boolean;
Full_Path_Name : in Boolean);
procedure Print_Unused (Full_Path_Name : in Boolean);
procedure Print_Vi (Full_Path_Name : in Boolean);
procedure Print_Xref (Full_Path_Name : in Boolean);
-- The actual print procedures. These functions step through the symbol
-- table and print all the symbols if they match the files given on the
-- command line (they already match the entities if they are in the
-- symbol table)
------------------------
-- General Algorithms --
------------------------
function Default_Project_File (Dir_Name : in String) return String;
-- Returns the default Project file name
procedure Search
(Pattern : Search_Pattern;
Local_Symbols : Boolean;
Wide_Search : Boolean;
Read_Only : Boolean;
Der_Info : Boolean;
Type_Tree : Boolean);
-- Search every ali file (following the Readdir rule above), for
-- each line matching Pattern, and executes Process on these
-- lines. If World is True, Search will look into every .ali file
-- in the object search path. If Read_Only is True, we parse the
-- read-only ali files too. If Der_Mode is true then the derived type
-- information will be processed. If Type_Tree is true then the type
-- hierarchy will be search going from pattern to the parent type
procedure Search_Xref
(Local_Symbols : Boolean;
Read_Only : Boolean;
Der_Info : Boolean);
-- Search every ali file given in the command line and all their
-- dependencies. If Read_Only is True, we parse the read-only ali
-- files too. If Der_Mode is true then the derived type information will
-- be processed
---------------
-- ALI files --
---------------
function Current_Xref_File
(File : ALI_File)
return Xr_Tabls.File_Reference;
-- Returns the name of the file in which the last identifier
-- is declared
function File_Name
(File : ALI_File;
Num : Positive)
return Xr_Tabls.File_Reference;
-- Returns the dependency file name number Num
function Get_Full_Type (Abbrev : Character) return String;
-- Returns the full type corresponding to a type letter as found in
-- the .ali files.
procedure Open
(Name : in String;
File : out ALI_File;
Dependencies : in Boolean := False);
-- Open a new ALI file
-- if Dependencies is True, the insert every library file 'with'ed in
-- the files database (used for gnatxref)
private
type Rec_DIR is limited record
Dir : GNAT.Directory_Operations.Dir_Type;
end record;
package Dependencies_Tables is new GNAT.Dynamic_Tables
(Table_Component_Type => Xr_Tabls.File_Reference,
Table_Index_Type => Positive,
Table_Low_Bound => 1,
Table_Initial => 400,
Table_Increment => 100);
use Dependencies_Tables;
type Dependencies is new Dependencies_Tables.Instance;
type ALI_File is limited record
Buffer : String_Access := null;
-- Buffer used to read the whole file at once
Current_Line : Positive;
-- Start of the current line in Buffer
Xref_Line : Positive;
-- Start of the xref lines in Buffer
X_File : Xr_Tabls.File_Reference;
-- Stores the cross-referencing file-name ("X..." lines), as an
-- index into the dependencies table
Dep : Dependencies;
-- Store file name associated with each number ("D..." lines)
end record;
-- The following record type stores all the patterns that are searched for
type Search_Pattern is record
Entity : GNAT.Regexp.Regexp;
-- A regular expression matching the entities we are looking for.
-- File is a list of the places where the declaration of the entities
-- has to be. When the user enters a file:line:column on the command
-- line, it is stored as "Entity_Name Declaration_File:line:column"
Initialized : Boolean := False;
-- Set to True when Entity has been initialized.
end record;
-- Stores all the pattern that are search for.
end Xref_Lib;
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