| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- V M S _ C O N V -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 2003 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 was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- This package is part of the GNAT driver. It contains a procedure |
| -- VMS_Conversion to convert the command line in VMS form to the equivalent |
| -- command line with switches for the GNAT tools that the GNAT driver will |
| -- invoke. |
| -- |
| -- The qualifier declarations are contained in package VMS_Data. |
| |
| with Table; |
| with VMS_Data; use VMS_Data; |
| |
| with GNAT.OS_Lib; use GNAT.OS_Lib; |
| |
| package VMS_Conv is |
| |
| -- A table to keep the switches on the command line |
| |
| package Last_Switches is new Table.Table |
| (Table_Component_Type => String_Access, |
| Table_Index_Type => Integer, |
| Table_Low_Bound => 1, |
| Table_Initial => 20, |
| Table_Increment => 100, |
| Table_Name => "Gnatcmd.Last_Switches"); |
| |
| Normal_Exit : exception; |
| -- Raise this exception for normal program termination |
| |
| Error_Exit : exception; |
| -- Raise this exception if error detected |
| |
| Errors : Natural := 0; |
| -- Count errors detected |
| |
| Display_Command : Boolean := False; |
| -- Set true if /? switch causes display of generated command (on VMS) |
| |
| ------------------- |
| -- COMMAND TABLE -- |
| ------------------- |
| |
| -- The command table contains an entry for each command recognized by |
| -- GNATCmd. The entries are represented by an array of records. |
| |
| type Parameter_Type is |
| -- A parameter is defined as a whitespace bounded string, not begining |
| -- with a slash. (But see note under FILES_OR_WILDCARD). |
| (File, |
| -- A required file or directory parameter. |
| |
| Optional_File, |
| -- An optional file or directory parameter. |
| |
| Other_As_Is, |
| -- A parameter that's passed through as is (not canonicalized) |
| |
| Unlimited_Files, |
| -- An unlimited number of whitespace separate file or directory |
| -- parameters including wildcard specifications. |
| |
| Unlimited_As_Is, |
| -- Un unlimited number of whitespace separated paameters that are |
| -- passed through as is (not canonicalized). |
| |
| Files_Or_Wildcard); |
| -- A comma separated list of files and/or wildcard file specifications. |
| -- A comma preceded by or followed by whitespace is considered as a |
| -- single comma character w/o whitespace. |
| |
| type Parameter_Array is array (Natural range <>) of Parameter_Type; |
| type Parameter_Ref is access all Parameter_Array; |
| |
| type Command_Type is |
| (Bind, Chop, Clean, Compile, Elim, Find, Krunch, Library, Link, List, |
| Make, Name, Preprocess, Pretty, Shared, Stub, Xref, Undefined); |
| |
| type Alternate_Command is (Comp, Ls, Kr, Pp, Prep); |
| -- Alternate command libel for non VMS system |
| |
| Corresponding_To : constant array (Alternate_Command) of Command_Type := |
| (Comp => Compile, |
| Ls => List, |
| Kr => Krunch, |
| Prep => Preprocess, |
| Pp => Pretty); |
| -- Mapping of alternate commands to commands |
| |
| subtype Real_Command_Type is Command_Type range Bind .. Xref; |
| |
| type Command_Entry is record |
| Cname : String_Ptr; |
| -- Command name for GNAT xxx command |
| |
| Usage : String_Ptr; |
| -- A usage string, used for error messages |
| |
| Unixcmd : String_Ptr; |
| -- Corresponding Unix command |
| |
| Unixsws : Argument_List_Access; |
| -- Switches for the Unix command |
| |
| VMS_Only : Boolean; |
| -- When True, the command can only be used on VMS |
| |
| Switches : Switches_Ptr; |
| -- Pointer to array of switch strings |
| |
| Params : Parameter_Ref; |
| -- Describes the allowable types of parameters. |
| -- Params (1) is the type of the first parameter, etc. |
| -- An empty parameter array means this command takes no parameters. |
| |
| Defext : String (1 .. 3); |
| -- Default extension. If non-blank, then this extension is supplied by |
| -- default as the extension for any file parameter which does not have |
| -- an extension already. |
| end record; |
| |
| ------------------------- |
| -- INTERNAL STRUCTURES -- |
| ------------------------- |
| |
| -- The switches and commands are defined by strings in the previous |
| -- section so that they are easy to modify, but internally, they are |
| -- kept in a more conveniently accessible form described in this |
| -- section. |
| |
| -- Commands, command qualifers and options have a similar common format |
| -- so that searching for matching names can be done in a common manner. |
| |
| type Item_Id is (Id_Command, Id_Switch, Id_Option); |
| |
| type Translation_Type is |
| ( |
| T_Direct, |
| -- A qualifier with no options. |
| -- Example: GNAT MAKE /VERBOSE |
| |
| T_Directories, |
| -- A qualifier followed by a list of directories |
| -- Example: GNAT COMPILE /SEARCH=([], [.FOO], [.BAR]) |
| |
| T_Directory, |
| -- A qualifier followed by one directory |
| -- Example: GNAT LIBRARY /SET=[.VAXFLOATLIB] |
| |
| T_File, |
| -- A qualifier followed by a filename |
| -- Example: GNAT LINK /EXECUTABLE=FOO.EXE |
| |
| T_No_Space_File, |
| -- A qualifier followed by a filename |
| -- Example: GNAT MAKE /PROJECT_FILE=PRJ.GPR |
| |
| T_Numeric, |
| -- A qualifier followed by a numeric value. |
| -- Example: GNAT CHOP /FILE_NAME_MAX_LENGTH=39 |
| |
| T_String, |
| -- A qualifier followed by a quoted string. Only used by |
| -- /IDENTIFICATION qualifier. |
| -- Example: GNAT LINK /IDENTIFICATION="3.14a1 version" |
| |
| T_Options, |
| -- A qualifier followed by a list of options. |
| -- Example: GNAT COMPILE /REPRESENTATION_INFO=(ARRAYS,OBJECTS) |
| |
| T_Commands, |
| -- A qualifier followed by a list. Only used for |
| -- MAKE /COMPILER_QUALIFIERS /BINDER_QUALIFIERS /LINKER_QUALIFIERS |
| -- (gnatmake -cargs -bargs -largs ) |
| -- Example: GNAT MAKE ... /LINKER_QUALIFIERS /VERBOSE FOOBAR.OBJ |
| |
| T_Other, |
| -- A qualifier passed directly to the linker. Only used |
| -- for LINK and SHARED if no other match is found. |
| -- Example: GNAT LINK FOO.ALI /SYSSHR |
| |
| T_Alphanumplus |
| -- A qualifier followed by a legal linker symbol prefix. Only used |
| -- for BIND /BUILD_LIBRARY (gnatbind -Lxyz). |
| -- Example: GNAT BIND /BUILD_LIBRARY=foobar |
| ); |
| |
| type Item (Id : Item_Id); |
| type Item_Ptr is access all Item; |
| |
| type Item (Id : Item_Id) is record |
| Name : String_Ptr; |
| -- Name of the command, switch (with slash) or option |
| |
| Next : Item_Ptr; |
| -- Pointer to next item on list, always has the same Id value |
| |
| Command : Command_Type := Undefined; |
| |
| Unix_String : String_Ptr := null; |
| -- Corresponding Unix string. For a command, this is the unix command |
| -- name and possible default switches. For a switch or option it is |
| -- the unix switch string. |
| |
| case Id is |
| |
| when Id_Command => |
| |
| Switches : Item_Ptr; |
| -- Pointer to list of switch items for the command, linked |
| -- through the Next fields with null terminating the list. |
| |
| Usage : String_Ptr; |
| -- Usage information, used only for errors and the default |
| -- list of commands output. |
| |
| Params : Parameter_Ref; |
| -- Array of parameters |
| |
| Defext : String (1 .. 3); |
| -- Default extension. If non-blank, then this extension is |
| -- supplied by default as the extension for any file parameter |
| -- which does not have an extension already. |
| |
| when Id_Switch => |
| |
| Translation : Translation_Type; |
| -- Type of switch translation. For all cases, except Options, |
| -- this is the only field needed, since the Unix translation |
| -- is found in Unix_String. |
| |
| Options : Item_Ptr; |
| -- For the Options case, this field is set to point to a list |
| -- of options item (for this case Unix_String is null in the |
| -- main switch item). The end of the list is marked by null. |
| |
| when Id_Option => |
| |
| null; |
| -- No special fields needed, since Name and Unix_String are |
| -- sufficient to completely described an option. |
| |
| end case; |
| end record; |
| |
| subtype Command_Item is Item (Id_Command); |
| subtype Switch_Item is Item (Id_Switch); |
| subtype Option_Item is Item (Id_Option); |
| |
| ------------------ |
| -- SWITCH TABLE -- |
| ------------------ |
| |
| -- The switch tables contain an entry for each switch recognized by the |
| -- command processor. It is initialized by procedure Initialize. |
| |
| Command_List : array (Real_Command_Type) of Command_Entry; |
| |
| ---------------- |
| -- Procedures -- |
| ---------------- |
| |
| procedure Initialize; |
| -- Initialized the switch table Command_List |
| |
| procedure Output_Version; |
| -- Output the version of this program |
| |
| procedure VMS_Conversion (The_Command : out Command_Type); |
| -- Converts VMS command line to equivalent Unix command line |
| |
| end VMS_Conv; |
