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|
*-----------------------------------------------------------------------------
*- --
*- G N A T --
*- --
*- COMPILER UTILITIES --
*- --
*- X N M A K E --
*- --
*- $Revision: 1.22 $ --
*- --
*- Copyright (C) 1992,1993,1994,1995 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. --
*- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
*- --
*-----------------------------------------------------------------------------
* Program to construct the spec and body of the Nmake package
*
* Input files:
*
* sinfo.ads Spec of Sinfo package
* nmake.adt Template for Nmake package
*
* Output files:
*
* nmake.ads Spec of Nmake package
* nmake.adb Body of Nmake package
*
* Note: this program assumes that sinfo.ads has passed the error checks which
* are carried out by the csinfo utility, so it does not duplicate these checks
*
* In the absence of any switches, both the ads and adb files are constructed.
* The switch -s or /s indicates that only the ads file is to be constructed.
* The switch -b or /b indicates that only the adb file is to be constructed.
*
* If a file name argument is given, then the output is written to this file
* rather than to nmake.ads or nmake.adb. A file name can only be given if
* exactly one of the -s or -b options is present.
"$Revision: 1.22 $" "$Rev" "ision: " break(' ') $ xnmakerev
terminal =
lineno = 0
&stlimit = -1
nwidth = 28
&anchor = 1
files = 'nmake.ads'
fileb = 'nmake.adb'
args = trim(host(1))
args = ident(args, "0") trim(host(0))
args breakx('-/') $ a len(1) any('bB') (span(' ') | '') = a :f(o1)
files =
o1 args breakx('-/') $ a len(1) any('sS') (span(' ') | '') = a :f(o2)
fileb =
o2 args span(' ') =
args break(' ') $ a span(' ') rpos(0) = a
args break(' ') :f(o3)
bado terminal = "invalid arguments" :(end)
o3 ident(args) :s(o4)
ident(files) :s(o5)
ident(fileb) :s(o6)
terminal = "if file name given, must use -b or -s" :(end)
o5 fileb = args :(o4)
o6 files = args :(o4)
o4
input(.ins,1,'sinfo.ads')
input(.int,2,'nmake.adt')
(differ(files) output(.outs,3,files))
(differ(fileb) output(.outb,4,fileb))
&anchor = 1
wsp = span(' ' char(9))
digits = '0123456789'
digit = any(digits)
* Get sinfo rev
slp line = ins
line breakx('$') '$Rev' 'ision: ' break(' ') $ sinforev :f(slp)
* Copy initial part of template to spec and body
lp1 line = int :f(err)
line breakx('$') '$Rev' 'ision: ' break(' ') $ temprev :f(lp1a)
outb = outs =
. '-- Generated by xnmake revision '
. xnmakerev ' using'
. ' --'
outb = outs =
. '-- sinfo.ads revision ' sinforev
. ' --'
outb = outs =
. '-- nmake.adt revision ' temprev
. ' --' :(lp1)
* Skip lines describing the template
lp1a line '-- This file is a template' :f(lp1c)
lp1b line = trim(int) :f(err)
differ(line) :s(lp1b)
lp1c line 'package' :s(p1)
line breakx(' ') $ x span(' ') '-- body only' = x :s(lpbb)
line breakx(' ') $ x span(' ') '-- spec only' = x :s(lpss)
line breakx('T') $ a 'T e m p l a t e' =
. a ' S p e c '
outs = line
line breakx('S') $ a 'S p e c' = a 'B o d y'
outb = line :(lp1)
lpbb outb = line :(lp1)
lpss outs = line :(lp1)
* Package line reached
p1 outs = 'package Nmake is'
outb = 'package body Nmake is'
outb =
* Copy rest of lines up to template insert point to spec only
lp2 line = int :f(err)
line '!!TEMPLATE INSERTION POINT' :s(lp3)
outs = line :(lp2)
* Here we are doing the actual insertions
lp3 line = trim(ins) :f(err)
line wsp '-- N_' rem $ node :f(lp3)
node breakx(' .,') :s(lp3)
ident(node,'Unused') :s(lp3)
ident(node,'Empty') :s(done)
prevl = ' function Make_' node ' (Sloc : Source_Ptr'
arg_list =
lp4 line = trim(ins) :f(err)
ident(line) :s(ef)
line wsp '-- plus fields for binary operator' :s(cb)
line wsp '-- plus fields for unary operator' :s(cu)
line wsp '-- ' break(' ') $ synonym ' (' break(')') $ field
. rem $ comment :f(lp4)
ident(synonym, "Prev_Ids") :s(lp4)
ident(synonym, "More_Ids") :s(lp4)
ident(synonym, "Comes_From_Source") :s(lp4)
ident(synonym, "Paren_Count") :s(lp4)
field breakx('-') '-Sem' :s(lp4)
field breakx('-') '-Lib' :s(lp4)
type =
field breakx(digits) $ field
field = ident(field, 'Str') 'String_Id'
field = ident(field, 'Node') 'Node_Id'
field = ident(field, 'Name') 'Name_Id'
field = ident(field, 'List') 'List_Id'
field = ident(field, 'Elist') 'Elist_Id'
field = ident(field, 'Flag') 'Boolean'
default =
default = ident(field, 'Boolean') 'False'
comment breakx('(') '(set to ' break(' ') $ default ' if'
outb = outs = prevl ';'
arg_list = arg_list synonym ','
synonym = rpad(synonym,nwidth)
prevl = ident(default) " " synonym ' : ' field :s(lp4)
prevl = " " synonym ' : ' field ' := ' default :(lp4)
cu outb = outs = prevl ';'
arg_list = arg_list 'Right_Opnd,'
prevl = " " rpad('Right_Opnd',nwidth) ' : Node_Id' :(lp4)
cb outb = outs = prevl ';'
arg_list = arg_list 'Left_Opnd,Right_Opnd,'
outb = outs = " " rpad('Left_Opnd',nwidth) ' : Node_Id;'
prevl = " " rpad('Right_Opnd',nwidth) ' : Node_Id' :(lp4)
ef outb = outs = prevl ')'
outs = ' return Node_Id;'
outs = ' pragma Inline (Make_' node ');'
outb = ' return Node_Id'
outb = ' is'
outb =
. ' N : constant Node_Id :='
node 'Defining_Identifier' :s(extend)
node 'Defining_Character' :s(extend)
node 'Defining_Operator' :s(extend)
outb =
. ' New_Node (N_' node ', Sloc);' :(merge)
extend outb =
. ' New_Entity (N_' node ', Sloc);'
merge outb = ' begin'
efl arg_list break(',') $ arg ',' = :f(efe)
outb = lt(size(arg),28) ' Set_' arg ' (N, ' arg ');' :s(efl)
outb = ' Set_' arg
outb = ' (N, ' arg ');' :(efl)
efe node 'Op_' rem $ Op_Name :f(efx)
outb = ident(node,'Op_Plus')
. ' Set_Chars (N, Name_Op_Add);' :s(eff1)
outb = ident(node,'Op_Minus')
. ' Set_Chars (N, Name_Op_Subtract);' :s(eff1)
Op_Name ('Shift_' | 'Rotate_') :f(eff)
outb = ' Set_Chars (N, Name_' Op_Name ');' :(eff2)
eff outb = ' Set_Chars (N, Name_' node ');'
eff1 Op_Name ('Or_Else' | 'And_Then' | 'In' | 'Not_In') :s(efx)
eff2 outb = ' Set_Entity (N, Standard_' node ');'
efx outb = ' return N;'
outb = ' end Make_' node ';'
outs =
outb = :(lp3)
done outs = outb = 'end Nmake;'
end
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