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- /*
- * $Id: cmpdef.cmd,v 1.2 1998/08/29 21:44:47 tom Exp $
- *
- * Author: Juan Jose Garcia Ripoll <worm@arrakis.es>.
- * Webpage: http://www.arrakis.es/~worm/
- *
- * cmpdef.cmd - compares two .def files, checking whether they have
- * the same entries with the same export codes.
- *
- * returns 0 if there are no conflicts between the files -- that is,
- * the newer one can replace the older one.
- *
- * returns 1 when either of the files is not properly formatted and
- * when there are conflicts: two symbols having the same export code.
- *
- * the standard output shows a list with newly added symbols, plus
- * replaced symbols and conflicts.
- */
- parse arg def_file1 def_file2
-
- def_file1 = translate(def_file1,'\','/')
- def_file2 = translate(def_file2,'\','/')
-
- call CleanQueue
-
- /*
- * `cmp' is zero when the last file is valid and upward compatible
- * `numbers' is the stem where symbols are stored
- */
- cmp = 0
- names. = ''
- numbers. = 0
-
- /*
- * This sed expression cleans empty lines, comments and special .DEF
- * commands, such as LIBRARY..., EXPORTS..., etc
- */
- tidy_up = '"s/[ ][ ]*/ /g;s/;.*//g;/^[ ]*$/d;/^[a-zA-Z]/d;"'
-
- /*
- * First we find all public symbols from the original DLL. All this
- * information is pushed into a REXX private list with the RXQUEUE
- * utility program.
- */
- '@echo off'
- 'type' def_file1 '| sed' tidy_up '| sort | rxqueue'
-
- do while queued() > 0
- /*
- * We retrieve the symbol name (NAME) and its number (NUMBER)
- */
- parse pull '"' name '"' '@'number rest
- if number = '' || name = '' then
- do
- say 'Corrupted file' def_file1
- say 'Symbol' name 'has no number'
- exit 1
- end
- else
- do
- numbers.name = number
- names.number = name
- end
- end
-
- /*
- * Now we find all public symbols from the new DLL, and compare.
- */
- 'type' def_file2 '| sed' tidy_up '| sort | rxqueue'
-
- do while queued() > 0
- parse pull '"' name '"' '@'number rest
- if name = '' | number = '' then
- do
- say 'Corrupted file' def_file2
- say 'Symbol' name 'has no number'
- exit 1
- end
- if numbers.name = 0 then
- do
- cmp = 1
- if names.number = '' then
- say 'New symbol' name 'with code @'number
- else
- say 'Conflict old =' names.number ', new =' name 'at @'number
- end
- else if numbers.name \= number then
- do
- cmp = 1
- say name 'Symbol' name 'changed from @'numbers.name 'to @'number
- end
- end /* do */
-
- exit cmp
-
- /*
- * Cleans the REXX queue by pulling and forgetting every line.
- * This is needed, at least, when `cmpdef.cmd' starts, because an aborted
- * REXX program might have left some rubbish in.
- */
- CleanQueue: procedure
- do while queued() > 0
- parse pull foo
- end
- return
-
-