4f73f89c47
2006-02-13 Robert Dewar <dewar@adacore.com> * par-ch6.adb, style.ads, styleg.adb, styleg.ads, stylesw.adb, stylesw.ads, usage.adb, vms_data.ads: Implement -gnatyI switch (MODE_IN) From-SVN: r111081
370 lines
12 KiB
Ada
370 lines
12 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT COMPILER COMPONENTS --
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-- --
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-- S T Y L E S W --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 1992-2006, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 2, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNAT; see file COPYING. If not, write --
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-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
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-- Boston, MA 02110-1301, USA. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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with Hostparm; use Hostparm;
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with Opt; use Opt;
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package body Stylesw is
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-------------------------------
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-- Reset_Style_Check_Options --
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-------------------------------
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procedure Reset_Style_Check_Options is
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begin
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Style_Check_Indentation := 0;
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Style_Check_Attribute_Casing := False;
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Style_Check_Blanks_At_End := False;
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Style_Check_Blank_Lines := False;
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Style_Check_Comments := False;
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Style_Check_DOS_Line_Terminator := False;
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Style_Check_End_Labels := False;
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Style_Check_Form_Feeds := False;
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Style_Check_Horizontal_Tabs := False;
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Style_Check_If_Then_Layout := False;
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Style_Check_Keyword_Casing := False;
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Style_Check_Layout := False;
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Style_Check_Max_Line_Length := False;
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Style_Check_Max_Nesting_Level := False;
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Style_Check_Mode_In := False;
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Style_Check_Order_Subprograms := False;
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Style_Check_Pragma_Casing := False;
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Style_Check_References := False;
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Style_Check_Specs := False;
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Style_Check_Standard := False;
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Style_Check_Tokens := False;
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Style_Check_Xtra_Parens := False;
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end Reset_Style_Check_Options;
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------------------------------
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-- Save_Style_Check_Options --
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------------------------------
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procedure Save_Style_Check_Options (Options : out Style_Check_Options) is
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P : Natural := 0;
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procedure Add (C : Character; S : Boolean);
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-- Add given character C to string if switch S is true
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procedure Add_Nat (N : Nat);
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-- Add given natural number to string
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---------
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-- Add --
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---------
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procedure Add (C : Character; S : Boolean) is
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begin
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if S then
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P := P + 1;
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Options (P) := C;
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end if;
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end Add;
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-------------
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-- Add_Nat --
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-------------
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procedure Add_Nat (N : Nat) is
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begin
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if N > 9 then
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Add_Nat (N / 10);
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end if;
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P := P + 1;
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Options (P) := Character'Val (Character'Pos ('0') + N mod 10);
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end Add_Nat;
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-- Start of processing for Save_Style_Check_Options
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begin
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for K in Options'Range loop
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Options (K) := ' ';
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end loop;
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Add (Character'Val (Style_Check_Indentation + Character'Pos ('0')),
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Style_Check_Indentation /= 0);
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Add ('a', Style_Check_Attribute_Casing);
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Add ('b', Style_Check_Blanks_At_End);
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Add ('c', Style_Check_Comments);
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Add ('d', Style_Check_DOS_Line_Terminator);
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Add ('e', Style_Check_End_Labels);
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Add ('f', Style_Check_Form_Feeds);
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Add ('h', Style_Check_Horizontal_Tabs);
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Add ('i', Style_Check_If_Then_Layout);
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Add ('I', Style_Check_Mode_In);
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Add ('k', Style_Check_Keyword_Casing);
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Add ('l', Style_Check_Layout);
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Add ('n', Style_Check_Standard);
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Add ('o', Style_Check_Order_Subprograms);
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Add ('p', Style_Check_Pragma_Casing);
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Add ('r', Style_Check_References);
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Add ('s', Style_Check_Specs);
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Add ('t', Style_Check_Tokens);
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Add ('u', Style_Check_Blank_Lines);
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Add ('x', Style_Check_Xtra_Parens);
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if Style_Check_Max_Line_Length then
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P := P + 1;
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Options (P) := 'M';
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Add_Nat (Style_Max_Line_Length);
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end if;
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if Style_Check_Max_Nesting_Level then
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P := P + 1;
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Options (P) := 'L';
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Add_Nat (Style_Max_Nesting_Level);
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end if;
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pragma Assert (P <= Options'Last);
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while P < Options'Last loop
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P := P + 1;
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Options (P) := ' ';
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end loop;
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end Save_Style_Check_Options;
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-------------------------------------
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-- Set_Default_Style_Check_Options --
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-------------------------------------
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procedure Set_Default_Style_Check_Options is
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begin
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Reset_Style_Check_Options;
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Set_Style_Check_Options ("3abcefhiklmnprst");
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end Set_Default_Style_Check_Options;
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-----------------------------
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-- Set_Style_Check_Options --
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-----------------------------
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-- Version used when no error checking is required
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procedure Set_Style_Check_Options (Options : String) is
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OK : Boolean;
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EC : Natural;
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begin
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Set_Style_Check_Options (Options, OK, EC);
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pragma Assert (OK);
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end Set_Style_Check_Options;
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-- Normal version with error checking
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procedure Set_Style_Check_Options
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(Options : String;
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OK : out Boolean;
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Err_Col : out Natural)
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is
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C : Character;
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procedure Add_Img (N : Natural);
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-- Concatenates image of N at end of Style_Msg_Buf
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procedure Bad_Style_Switch (Msg : String);
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-- Called if bad style switch found. Msg is mset in Style_Msg_Buf and
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-- Style_Msg_Len. OK is set False.
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-------------
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-- Add_Img --
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-------------
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procedure Add_Img (N : Natural) is
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begin
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if N >= 10 then
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Add_Img (N / 10);
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end if;
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Style_Msg_Len := Style_Msg_Len + 1;
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Style_Msg_Buf (Style_Msg_Len) :=
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Character'Val (N mod 10 + Character'Pos ('0'));
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end Add_Img;
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----------------------
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-- Bad_Style_Switch --
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----------------------
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procedure Bad_Style_Switch (Msg : String) is
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begin
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OK := False;
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Style_Msg_Len := Msg'Length;
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Style_Msg_Buf (1 .. Style_Msg_Len) := Msg;
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end Bad_Style_Switch;
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-- Start of processing for Set_Style_Check_Options
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begin
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Err_Col := Options'First;
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while Err_Col <= Options'Last loop
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C := Options (Err_Col);
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Err_Col := Err_Col + 1;
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case C is
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when '1' .. '9' =>
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Style_Check_Indentation :=
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Character'Pos (C) - Character'Pos ('0');
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when 'a' =>
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Style_Check_Attribute_Casing := True;
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when 'b' =>
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Style_Check_Blanks_At_End := True;
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when 'c' =>
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Style_Check_Comments := True;
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when 'd' =>
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Style_Check_DOS_Line_Terminator := True;
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when 'e' =>
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Style_Check_End_Labels := True;
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when 'f' =>
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Style_Check_Form_Feeds := True;
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when 'h' =>
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Style_Check_Horizontal_Tabs := True;
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when 'i' =>
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Style_Check_If_Then_Layout := True;
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when 'I' =>
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Style_Check_Mode_In := True;
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when 'k' =>
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Style_Check_Keyword_Casing := True;
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when 'l' =>
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Style_Check_Layout := True;
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when 'L' =>
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Style_Max_Nesting_Level := 0;
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if Err_Col > Options'Last
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or else Options (Err_Col) not in '0' .. '9'
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then
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Bad_Style_Switch ("invalid nesting level");
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return;
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end if;
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loop
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Style_Max_Nesting_Level :=
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Style_Max_Nesting_Level * 10 +
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Character'Pos (Options (Err_Col)) - Character'Pos ('0');
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if Style_Max_Nesting_Level > 999 then
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Bad_Style_Switch
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("max nesting level (999) exceeded in style check");
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return;
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end if;
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Err_Col := Err_Col + 1;
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exit when Err_Col > Options'Last
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or else Options (Err_Col) not in '0' .. '9';
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end loop;
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Style_Check_Max_Nesting_Level := Style_Max_Nesting_Level /= 0;
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when 'm' =>
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Style_Check_Max_Line_Length := True;
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Style_Max_Line_Length := 79;
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when 'M' =>
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Style_Max_Line_Length := 0;
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if Err_Col > Options'Last
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or else Options (Err_Col) not in '0' .. '9'
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then
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Bad_Style_Switch
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("invalid line length in style check");
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return;
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end if;
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loop
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Style_Max_Line_Length :=
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Style_Max_Line_Length * 10 +
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Character'Pos (Options (Err_Col)) - Character'Pos ('0');
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if Style_Max_Line_Length > Int (Max_Line_Length) then
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OK := False;
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Style_Msg_Buf (1 .. 27) := "max line length allowed is ";
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Style_Msg_Len := 27;
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Add_Img (Natural (Max_Line_Length));
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return;
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end if;
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Err_Col := Err_Col + 1;
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exit when Err_Col > Options'Last
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or else Options (Err_Col) not in '0' .. '9';
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end loop;
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Style_Check_Max_Line_Length := Style_Max_Line_Length /= 0;
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when 'n' =>
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Style_Check_Standard := True;
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when 'N' =>
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Reset_Style_Check_Options;
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when 'o' =>
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Style_Check_Order_Subprograms := True;
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when 'p' =>
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Style_Check_Pragma_Casing := True;
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when 'r' =>
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Style_Check_References := True;
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when 's' =>
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Style_Check_Specs := True;
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when 't' =>
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Style_Check_Tokens := True;
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when 'u' =>
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Style_Check_Blank_Lines := True;
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when 'x' =>
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Style_Check_Xtra_Parens := True;
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when ' ' =>
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null;
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when others =>
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Err_Col := Err_Col - 1;
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Style_Msg_Buf (1 .. 21) := "invalid style switch:";
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Style_Msg_Len := 22;
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Style_Msg_Buf (Style_Msg_Len) := C;
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OK := False;
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return;
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end case;
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end loop;
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Style_Check := True;
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OK := True;
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end Set_Style_Check_Options;
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end Stylesw;
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