1/*
2 * $Id: chkdef.cmd,v 1.2 1998/08/29 21:45:58 tom Exp $
3 *
4 * Author:  Juan Jose Garcia Ripoll <worm@arrakis.es>.
5 * Webpage: http://www.arrakis.es/~worm/
6 *
7 * chkdef.cmd - checks that a .def file has no conflicts and is properly
8 *		formatted.
9 *
10 * returns nonzero if two symbols have the same code or a line has a wrong
11 * format.
12 *
13 * returns 0 otherwise
14 *
15 * the standard output shows conflicts.
16 */
17parse arg def_file
18
19def_file = translate(def_file,'\','/')
20
21call CleanQueue
22
23/*
24 * `cmp' is zero when the file is valid
25 * `codes' associates a name to a code
26 * `names' associates a code to a name
27 */
28cmp    = 0
29codes. = 0
30names. = ''
31
32/*
33 * This sed expression cleans empty lines, comments and special .DEF
34 * commands, such as LIBRARY..., EXPORTS..., etc
35 */
36tidy_up  = '"s/[ 	][ 	]*/ /g;s/;.*//g;/^[ ]*$/d;/^[a-zA-Z]/d;"'
37
38/*
39 * First we find all public symbols from the original DLL. All this
40 * information is pushed into a REXX private list with the RXQUEUE
41 * utility program.
42 */
43'@echo off'
44'type' def_file '| sed' tidy_up '| sort | rxqueue'
45
46do while queued() > 0
47   /*
48    * We retrieve the symbol name (NEW_NAME) and its code (NEW_CODE)
49    */
50   parse pull '"' new_name '"' '@'new_code rest
51   select
52      when (new_code = '') | (new_name = '') then
53         /* The input was not properly formatted */
54         do
55         say 'Error: symbol "'new_name'" has no export code or is empty'
56         cmp = 1
57         end
58      when codes.new_name \= 0 then
59         /* This symbol was already defined */
60         if codes.new_name \= new_code then
61            do
62	    cmp = 2
63 	    say 'Symbol "'new_name'" multiply defined'
64	    end
65      when names.new_code \= '' then
66         /* This code was already assigned to a symbol */
67         if names.new_code \= new_name then
68            do
69            cmp = 3
70	    say 'Conflict with "'names.new_code'" & "'new_name'" being @'new_code
71            end
72      otherwise
73         do
74         codes.new_name = new_code
75         names.new_code = new_name
76         end
77   end  /* select */
78end
79
80exit cmp
81
82CleanQueue: procedure
83	do while queued() > 0
84	   parse pull foo
85	end
86return
87