-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2005, Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2009, 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- --
+-- ware Foundation; either version 3, 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. --
+-- Public License distributed with GNAT; see file COPYING3. If not, go to --
+-- http://www.gnu.org/licenses for a complete copy of the license. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-with Opt; use Opt;
+with Hostparm; use Hostparm;
+with Opt; use Opt;
package body Stylesw is
+ -- The following constant defines the default style options for -gnaty
+
+ Default_Style : constant String :=
+ "3" & -- indentation level is 3
+ "a" & -- check attribute casing
+ "A" & -- check array attribute indexes
+ "b" & -- check no blanks at end of lines
+ "c" & -- check comment formats
+ "e" & -- check end/exit labels present
+ "f" & -- check no form/feeds vertical tabs in source
+ "h" & -- check no horizontal tabs in source
+ "i" & -- check if-then layout
+ "k" & -- check casing rules for keywords
+ "l" & -- check reference manual layout
+ "m" & -- check line length <= 79 characters
+ "n" & -- check casing of package Standard idents
+ "p" & -- check pragma casing
+ "r" & -- check casing for identifier references
+ "s" & -- check separate subprogram specs present
+ "t"; -- check token separation rules
+
+ -- The following constant defines the GNAT style options, showing them
+ -- as additions to the standard default style check options.
+
+ GNAT_Style : constant String := Default_Style &
+ "d" & -- check no DOS line terminators
+ "I" & -- check mode IN
+ "S" & -- check separate lines after THEN or ELSE
+ "u" & -- check no unnecessary blank lines
+ "x"; -- check extra parentheses around conditionals
+
-------------------------------
-- Reset_Style_Check_Options --
-------------------------------
procedure Reset_Style_Check_Options is
begin
- Style_Check_Indentation := 0;
- Style_Check_Attribute_Casing := False;
- Style_Check_Blanks_At_End := False;
- Style_Check_Blank_Lines := False;
- Style_Check_Comments := False;
- Style_Check_DOS_Line_Terminator := False;
- Style_Check_End_Labels := False;
- Style_Check_Form_Feeds := False;
- Style_Check_Horizontal_Tabs := False;
- Style_Check_If_Then_Layout := False;
- Style_Check_Keyword_Casing := False;
- Style_Check_Layout := False;
- Style_Check_Max_Line_Length := False;
- Style_Check_Max_Nesting_Level := False;
- Style_Check_Order_Subprograms := False;
- Style_Check_Pragma_Casing := False;
- Style_Check_References := False;
- Style_Check_Specs := False;
- Style_Check_Standard := False;
- Style_Check_Tokens := False;
- Style_Check_Xtra_Parens := False;
+ Style_Check_Indentation := 0;
+ Style_Check_Array_Attribute_Index := False;
+ Style_Check_Attribute_Casing := False;
+ Style_Check_Blanks_At_End := False;
+ Style_Check_Blank_Lines := False;
+ Style_Check_Boolean_And_Or := False;
+ Style_Check_Comments := False;
+ Style_Check_DOS_Line_Terminator := False;
+ Style_Check_End_Labels := False;
+ Style_Check_Form_Feeds := False;
+ Style_Check_Horizontal_Tabs := False;
+ Style_Check_If_Then_Layout := False;
+ Style_Check_Keyword_Casing := False;
+ Style_Check_Layout := False;
+ Style_Check_Max_Line_Length := False;
+ Style_Check_Max_Nesting_Level := False;
+ Style_Check_Missing_Overriding := False;
+ Style_Check_Mode_In := False;
+ Style_Check_Order_Subprograms := False;
+ Style_Check_Pragma_Casing := False;
+ Style_Check_References := False;
+ Style_Check_Separate_Stmt_Lines := False;
+ Style_Check_Specs := False;
+ Style_Check_Standard := False;
+ Style_Check_Tokens := False;
+ Style_Check_Xtra_Parens := False;
end Reset_Style_Check_Options;
+ ---------------------
+ -- RM_Column_Check --
+ ---------------------
+
+ function RM_Column_Check return Boolean is
+ begin
+ return Style_Check and Style_Check_Layout;
+ end RM_Column_Check;
+
------------------------------
-- Save_Style_Check_Options --
------------------------------
Style_Check_Indentation /= 0);
Add ('a', Style_Check_Attribute_Casing);
+ Add ('A', Style_Check_Array_Attribute_Index);
Add ('b', Style_Check_Blanks_At_End);
+ Add ('B', Style_Check_Boolean_And_Or);
Add ('c', Style_Check_Comments);
Add ('d', Style_Check_DOS_Line_Terminator);
Add ('e', Style_Check_End_Labels);
Add ('f', Style_Check_Form_Feeds);
Add ('h', Style_Check_Horizontal_Tabs);
Add ('i', Style_Check_If_Then_Layout);
+ Add ('I', Style_Check_Mode_In);
Add ('k', Style_Check_Keyword_Casing);
Add ('l', Style_Check_Layout);
Add ('n', Style_Check_Standard);
Add ('o', Style_Check_Order_Subprograms);
+ Add ('O', Style_Check_Missing_Overriding);
Add ('p', Style_Check_Pragma_Casing);
Add ('r', Style_Check_References);
Add ('s', Style_Check_Specs);
+ Add ('S', Style_Check_Separate_Stmt_Lines);
Add ('t', Style_Check_Tokens);
Add ('u', Style_Check_Blank_Lines);
Add ('x', Style_Check_Xtra_Parens);
procedure Set_Default_Style_Check_Options is
begin
Reset_Style_Check_Options;
- Set_Style_Check_Options ("3abcefhiklmnprst");
+ Set_Style_Check_Options (Default_Style);
end Set_Default_Style_Check_Options;
+ ----------------------------------
+ -- Set_GNAT_Style_Check_Options --
+ ----------------------------------
+
+ procedure Set_GNAT_Style_Check_Options is
+ begin
+ Reset_Style_Check_Options;
+ Set_Style_Check_Options (GNAT_Style);
+ end Set_GNAT_Style_Check_Options;
+
-----------------------------
-- Set_Style_Check_Options --
-----------------------------
procedure Set_Style_Check_Options (Options : String) is
OK : Boolean;
EC : Natural;
+ pragma Warnings (Off, EC);
begin
Set_Style_Check_Options (Options, OK, EC);
+ pragma Assert (OK);
end Set_Style_Check_Options;
-- Normal version with error checking
OK : out Boolean;
Err_Col : out Natural)
is
- J : Natural;
C : Character;
+ On : Boolean := True;
+ -- Set to False if minus encountered
+ -- Set to True if plus encountered
+
+ Last_Option : Character := ' ';
+ -- Set to last character encountered
+
+ procedure Add_Img (N : Natural);
+ -- Concatenates image of N at end of Style_Msg_Buf
+
+ procedure Bad_Style_Switch (Msg : String);
+ -- Called if bad style switch found. Msg is set in Style_Msg_Buf and
+ -- Style_Msg_Len. OK is set False.
+
+ -------------
+ -- Add_Img --
+ -------------
+
+ procedure Add_Img (N : Natural) is
+ begin
+ if N >= 10 then
+ Add_Img (N / 10);
+ end if;
+
+ Style_Msg_Len := Style_Msg_Len + 1;
+ Style_Msg_Buf (Style_Msg_Len) :=
+ Character'Val (N mod 10 + Character'Pos ('0'));
+ end Add_Img;
+
+ ----------------------
+ -- Bad_Style_Switch --
+ ----------------------
+
+ procedure Bad_Style_Switch (Msg : String) is
+ begin
+ OK := False;
+ Style_Msg_Len := Msg'Length;
+ Style_Msg_Buf (1 .. Style_Msg_Len) := Msg;
+ end Bad_Style_Switch;
+
+ -- Start of processing for Set_Style_Check_Options
+
begin
- J := Options'First;
- while J <= Options'Last loop
- C := Options (J);
- J := J + 1;
+ Err_Col := Options'First;
+ while Err_Col <= Options'Last loop
+ C := Options (Err_Col);
+ Last_Option := C;
+ Err_Col := Err_Col + 1;
+
+ -- Turning switches on
+
+ if On then
+ case C is
+
+ when '+' =>
+ null;
+
+ when '-' =>
+ On := False;
- case C is
- when '1' .. '9' =>
- Style_Check_Indentation
- := Character'Pos (C) - Character'Pos ('0');
+ when '0' .. '9' =>
+ Style_Check_Indentation :=
+ Character'Pos (C) - Character'Pos ('0');
when 'a' =>
- Style_Check_Attribute_Casing := True;
+ Style_Check_Attribute_Casing := True;
+
+ when 'A' =>
+ Style_Check_Array_Attribute_Index := True;
when 'b' =>
- Style_Check_Blanks_At_End := True;
+ Style_Check_Blanks_At_End := True;
+
+ when 'B' =>
+ Style_Check_Boolean_And_Or := True;
when 'c' =>
- Style_Check_Comments := True;
+ Style_Check_Comments := True;
when 'd' =>
- Style_Check_DOS_Line_Terminator := True;
+ Style_Check_DOS_Line_Terminator := True;
when 'e' =>
- Style_Check_End_Labels := True;
+ Style_Check_End_Labels := True;
when 'f' =>
- Style_Check_Form_Feeds := True;
+ Style_Check_Form_Feeds := True;
+
+ when 'g' =>
+ Set_GNAT_Style_Check_Options;
when 'h' =>
- Style_Check_Horizontal_Tabs := True;
+ Style_Check_Horizontal_Tabs := True;
when 'i' =>
- Style_Check_If_Then_Layout := True;
+ Style_Check_If_Then_Layout := True;
+
+ when 'I' =>
+ Style_Check_Mode_In := True;
when 'k' =>
- Style_Check_Keyword_Casing := True;
+ Style_Check_Keyword_Casing := True;
when 'l' =>
- Style_Check_Layout := True;
+ Style_Check_Layout := True;
when 'L' =>
Style_Max_Nesting_Level := 0;
- if J > Options'Last
- or else Options (J) not in '0' .. '9'
+ if Err_Col > Options'Last
+ or else Options (Err_Col) not in '0' .. '9'
then
- OK := False;
- Err_Col := J;
+ Bad_Style_Switch ("invalid nesting level");
return;
end if;
loop
Style_Max_Nesting_Level :=
Style_Max_Nesting_Level * 10 +
- Character'Pos (Options (J)) - Character'Pos ('0');
+ Character'Pos (Options (Err_Col)) - Character'Pos ('0');
if Style_Max_Nesting_Level > 999 then
- OK := False;
- Err_Col := J;
+ Bad_Style_Switch
+ ("max nesting level (999) exceeded in style check");
return;
end if;
- J := J + 1;
- exit when J > Options'Last
- or else Options (J) not in '0' .. '9';
+ Err_Col := Err_Col + 1;
+ exit when Err_Col > Options'Last
+ or else Options (Err_Col) not in '0' .. '9';
end loop;
Style_Check_Max_Nesting_Level := Style_Max_Nesting_Level /= 0;
when 'm' =>
- Style_Check_Max_Line_Length := True;
- Style_Max_Line_Length := 79;
-
- when 'n' =>
- Style_Check_Standard := True;
-
- when 'N' =>
- Reset_Style_Check_Options;
+ Style_Check_Max_Line_Length := True;
+ Style_Max_Line_Length := 79;
when 'M' =>
- Style_Max_Line_Length := 0;
+ Style_Max_Line_Length := 0;
- if J > Options'Last
- or else Options (J) not in '0' .. '9'
+ if Err_Col > Options'Last
+ or else Options (Err_Col) not in '0' .. '9'
then
- OK := False;
- Err_Col := J;
+ Bad_Style_Switch
+ ("invalid line length in style check");
return;
end if;
loop
Style_Max_Line_Length :=
Style_Max_Line_Length * 10 +
- Character'Pos (Options (J)) - Character'Pos ('0');
+ Character'Pos (Options (Err_Col)) - Character'Pos ('0');
- if Style_Max_Line_Length > Int (Column_Number'Last) then
+ if Style_Max_Line_Length > Int (Max_Line_Length) then
OK := False;
- Err_Col := J;
+ Style_Msg_Buf (1 .. 27) := "max line length allowed is ";
+ Style_Msg_Len := 27;
+ Add_Img (Natural (Max_Line_Length));
return;
end if;
- J := J + 1;
- exit when J > Options'Last
- or else Options (J) not in '0' .. '9';
+ Err_Col := Err_Col + 1;
+ exit when Err_Col > Options'Last
+ or else Options (Err_Col) not in '0' .. '9';
end loop;
- Style_Check_Max_Line_Length := Style_Max_Line_Length /= 0;
+ Style_Check_Max_Line_Length := Style_Max_Line_Length /= 0;
+
+ when 'n' =>
+ Style_Check_Standard := True;
+
+ when 'N' =>
+ Reset_Style_Check_Options;
+
+ when 'o' =>
+ Style_Check_Order_Subprograms := True;
+
+ when 'O' =>
+ Style_Check_Missing_Overriding := True;
+
+ when 'p' =>
+ Style_Check_Pragma_Casing := True;
+
+ when 'r' =>
+ Style_Check_References := True;
+
+ when 's' =>
+ Style_Check_Specs := True;
+
+ when 'S' =>
+ Style_Check_Separate_Stmt_Lines := True;
+
+ when 't' =>
+ Style_Check_Tokens := True;
+
+ when 'u' =>
+ Style_Check_Blank_Lines := True;
+
+ when 'x' =>
+ Style_Check_Xtra_Parens := True;
+
+ when 'y' =>
+ Set_Default_Style_Check_Options;
+
+ when ' ' =>
+ null;
+
+ when others =>
+ Err_Col := Err_Col - 1;
+ Bad_Style_Switch ("invalid style switch: " & C);
+ return;
+ end case;
+
+ -- Turning switches off
+
+ else
+ case C is
+
+ when '+' =>
+ On := True;
+
+ when '-' =>
+ null;
+
+ when '0' .. '9' =>
+ Style_Check_Indentation := 0;
+
+ when 'a' =>
+ Style_Check_Attribute_Casing := False;
+
+ when 'A' =>
+ Style_Check_Array_Attribute_Index := False;
+
+ when 'b' =>
+ Style_Check_Blanks_At_End := False;
+
+ when 'B' =>
+ Style_Check_Boolean_And_Or := False;
+
+ when 'c' =>
+ Style_Check_Comments := False;
+
+ when 'd' =>
+ Style_Check_DOS_Line_Terminator := False;
+
+ when 'e' =>
+ Style_Check_End_Labels := False;
+
+ when 'f' =>
+ Style_Check_Form_Feeds := False;
+
+ when 'g' =>
+ Reset_Style_Check_Options;
+
+ when 'h' =>
+ Style_Check_Horizontal_Tabs := False;
+
+ when 'i' =>
+ Style_Check_If_Then_Layout := False;
+
+ when 'I' =>
+ Style_Check_Mode_In := False;
+
+ when 'k' =>
+ Style_Check_Keyword_Casing := False;
+
+ when 'l' =>
+ Style_Check_Layout := False;
+
+ when 'L' =>
+ Style_Max_Nesting_Level := 0;
+
+ when 'm' =>
+ Style_Check_Max_Line_Length := False;
+
+ when 'M' =>
+ Style_Max_Line_Length := 0;
+ Style_Check_Max_Line_Length := False;
+
+ when 'n' =>
+ Style_Check_Standard := False;
when 'o' =>
- Style_Check_Order_Subprograms := True;
+ Style_Check_Order_Subprograms := False;
when 'p' =>
- Style_Check_Pragma_Casing := True;
+ Style_Check_Pragma_Casing := False;
when 'r' =>
- Style_Check_References := True;
+ Style_Check_References := False;
when 's' =>
- Style_Check_Specs := True;
+ Style_Check_Specs := False;
+
+ when 'S' =>
+ Style_Check_Separate_Stmt_Lines := False;
when 't' =>
- Style_Check_Tokens := True;
+ Style_Check_Tokens := False;
when 'u' =>
- Style_Check_Blank_Lines := True;
+ Style_Check_Blank_Lines := False;
when 'x' =>
- Style_Check_Xtra_Parens := True;
+ Style_Check_Xtra_Parens := False;
when ' ' =>
null;
when others =>
- OK := False;
- Err_Col := J - 1;
+ Err_Col := Err_Col - 1;
+ Bad_Style_Switch ("invalid style switch: " & C);
return;
- end case;
+ end case;
+ end if;
end loop;
- Style_Check := True;
+ -- Turn on style checking if other than N at end of string
+
+ Style_Check := (Last_Option /= 'N');
OK := True;
- Err_Col := Options'Last + 1;
end Set_Style_Check_Options;
-
end Stylesw;
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