gcc/ada/prj-pp.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                               P R J . P P                                --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 2001-2010, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 3,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT; see file COPYING3.  If not, go to --
  19 -- http://www.gnu.org/licenses for a complete copy of the license.          --
  20 --                                                                          --
  21 -- GNAT was originally developed  by the GNAT team at  New York University. --
  22 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  23 --                                                                          --
  24 ------------------------------------------------------------------------------
  25
  26 --  This package is the Project File Pretty Printer
  27
  28 --    Used to output a project file from a project file tree.
  29 --    Used by gnatname to update or create project files.
  30 --    Also used GPS to display project file trees.
  31 --    Also be used for debugging tools that create project file trees.
  32
  33 with Prj.Tree;
  34
  35 package Prj.PP is
  36
  37    --  The following access to procedure types are used to redirect output when
  38    --  calling Pretty_Print.
  39
  40    type Write_Char_Ap is access procedure (C : Character);
  41
  42    type Write_Eol_Ap  is access procedure;
  43
  44    type Write_Str_Ap is access procedure (S : String);
  45
  46    subtype Max_Length_Of_Line is Positive range 50 .. 255;
  47
  48    procedure Pretty_Print
  49      (Project                            : Prj.Tree.Project_Node_Id;
  50       In_Tree                            : Prj.Tree.Project_Node_Tree_Ref;
  51       Increment                          : Positive       := 3;
  52       Eliminate_Empty_Case_Constructions : Boolean        := False;
  53       Minimize_Empty_Lines               : Boolean        := False;
  54       W_Char                             : Write_Char_Ap  := null;
  55       W_Eol                              : Write_Eol_Ap   := null;
  56       W_Str                              : Write_Str_Ap   := null;
  57       Backward_Compatibility             : Boolean;
  58       Id                                 : Prj.Project_Id := Prj.No_Project;
  59       Max_Line_Length                    : Max_Length_Of_Line :=
  60                                              Max_Length_Of_Line'Last);
  61    --  Output a project file, using either the default output routines, or the
  62    --  ones specified by W_Char, W_Eol and W_Str.
  63    --
  64    --  Increment is the number of spaces for each indentation level
  65    --
  66    --  W_Char, W_Eol and W_Str can be used to change the default output
  67    --  procedures. The default values force the output to Standard_Output.
  68    --
  69    --  If Eliminate_Empty_Case_Constructions is True, then case constructions
  70    --  and case items that do not include any declarations will not be output.
  71    --
  72    --  If Minimize_Empty_Lines is True, empty lines will be output only after
  73    --  the last with clause, after the line declaring the project name, after
  74    --  the last declarative item of the project and before each package
  75    --  declaration. Otherwise, more empty lines are output.
  76    --
  77    --  If Backward_Compatibility is True, then new attributes (Spec,
  78    --  Spec_Suffix, Body, Body_Suffix) will be replaced by obsolete ones
  79    --  (Specification, Specification_Suffix, Implementation,
  80    --  Implementation_Suffix).
  81    --
  82    --  Id is used to compute the display name of the project including its
  83    --  proper casing.
  84    --
  85    --  Max_Line_Length is the maximum line length in the project file
  86
  87 private
  88
  89    procedure Output_Statistics;
  90    --  This procedure can be used after one or more calls to Pretty_Print to
  91    --  display what Project_Node_Kinds have not been exercised by the call(s)
  92    --  to Pretty_Print. It is used only for testing purposes.
  93
  94 end Prj.PP;