xref: /freebsd/contrib/ncurses/misc/chkdef.cmd (revision 123af6ec70016f5556da5972d4d63c7d175c06d3)
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28
29/*
30 * $Id: chkdef.cmd,v 1.3 2006/04/22 23:14:50 tom Exp $
31 *
32 * Author:  Juan Jose Garcia Ripoll <worm@arrakis.es>.
33 * Webpage: http://www.arrakis.es/~worm/
34 *
35 * chkdef.cmd - checks that a .def file has no conflicts and is properly
36 *		formatted.
37 *
38 * returns nonzero if two symbols have the same code or a line has a wrong
39 * format.
40 *
41 * returns 0 otherwise
42 *
43 * the standard output shows conflicts.
44 */
45parse arg def_file
46
47def_file = translate(def_file,'\','/')
48
49call CleanQueue
50
51/*
52 * `cmp' is zero when the file is valid
53 * `codes' associates a name to a code
54 * `names' associates a code to a name
55 */
56cmp    = 0
57codes. = 0
58names. = ''
59
60/*
61 * This sed expression cleans empty lines, comments and special .DEF
62 * commands, such as LIBRARY..., EXPORTS..., etc
63 */
64tidy_up  = '"s/[ 	][ 	]*/ /g;s/;.*//g;/^[ ]*$/d;/^[a-zA-Z]/d;"'
65
66/*
67 * First we find all public symbols from the original DLL. All this
68 * information is pushed into a REXX private list with the RXQUEUE
69 * utility program.
70 */
71'@echo off'
72'type' def_file '| sed' tidy_up '| sort | rxqueue'
73
74do while queued() > 0
75   /*
76    * We retrieve the symbol name (NEW_NAME) and its code (NEW_CODE)
77    */
78   parse pull '"' new_name '"' '@'new_code rest
79   select
80      when (new_code = '') | (new_name = '') then
81         /* The input was not properly formatted */
82         do
83         say 'Error: symbol "'new_name'" has no export code or is empty'
84         cmp = 1
85         end
86      when codes.new_name \= 0 then
87         /* This symbol was already defined */
88         if codes.new_name \= new_code then
89            do
90	    cmp = 2
91 	    say 'Symbol "'new_name'" multiply defined'
92	    end
93      when names.new_code \= '' then
94         /* This code was already assigned to a symbol */
95         if names.new_code \= new_name then
96            do
97            cmp = 3
98	    say 'Conflict with "'names.new_code'" & "'new_name'" being @'new_code
99            end
100      otherwise
101         do
102         codes.new_name = new_code
103         names.new_code = new_name
104         end
105   end  /* select */
106end
107
108exit cmp
109
110CleanQueue: procedure
111	do while queued() > 0
112	   parse pull foo
113	end
114return
115