For example, I abuse R5 to convert filenames to lower case which is important when transferring files that have been created with Windows 16-bit applications to UNIX based operating systems. Windows 16-bit applications, e.g. Lotus Ami Pro 3.1, create files with upper case filenames, so if a file called MPLBATCH.HTM is uploaded to a UNIX webserver and if it is being linked in an HTML file with the tag <A HREF="mplbatch.htm"> (a lower case filename), it cannot be found. Likewise Maple library files created with the DOS march utility have upper case filenames so they cannot (should not) be found by Maple V running on a case-sensitive platform.
The first five lines in the batch file switch off printing and cause the batch to jump to the section containing information on the usage of tolower.bat if one of the following help argument has been passed to it: /?, /h, or --help:
@echo=off if "%1"=="/?" goto help if "%1"=="--help" goto help if "%1"=="/h" goto helpThe following line calls the DOS command line version of Release 5 withthe -q switch which suppresses printing, and the -b option which indicates the path to the R5 main Maple Library. (I have to pass the -b switch for otherwise, the command line version of R5 does not initialize on my PC.)
The first -c option is used to pass (read) the Maple text file c:/tools/batch/tolower.mv5 containing the Maple code to convert filenames (see below).
In order to execute the statements in the file, a second -c switch has to be passed to R5 which calls the function tolower with the first argument (%1) passed to the NT batch file. This first batch file argument indicates the directory including the files to be renamed. tolower expects an argument of type string or name, so backquotes enclose the %1 tag. If no argument is passed to the batch file, the filenames in the current working directory are renamed.
Finally the third -c switch tells R5 to quit after the call to tolower has been executed. The quit command must not be included in tolower.mv5 because this would terminate R5 before a call to tolower (second -c switch) can be executed. (The calling statement to R5 should be in one line, it is split here for proper display.)
e:\maplev5\bin.wnt\cmaple -q -b e:\maplev5\lib -cread(`c:/tools/batch/tolower.mv5`) -ctolower(`%1`) -cquitThe following goto statement tells NT to jump to the end of the file, thus terminating the batch. The :help label is a mark for displaying some text on screen if no argument has been passed to tolower.bat
goto :EOF :help echo function: converts all filenames in a directory to lower-case filenames echo usage: tolower _path_, where _path_ is input with slashes; if no path echo is given, the files in the current directory are renamed echo Examples: tolower c:/maplev3 echo tolower
tolower := proc() local dir, i, command; # if no argument has been given, determine the current working directory # in the DOS shell if args = `` then dir := currentdir() else dir := args fi; # utils/replace slashes in the path to the directory with backslashes: dir := readlib(`utils/replace`)(args, `/`=`\\`): # utils/dir returns the files in direcory dir for i in readlib(`utils/dir`)(dir) do # create the DOS rename command for each file in dir command := cat(`rename `, dir, `\\`, i, ` `, readlib(`utils/toLower`)(i)); # print the file currently being renamed on screen, use slashes # instead of backslashes lprint(readlib(`utils/replace`)(command, `\\`=`/`)); # execute the DOS rename command system(command) od end:
E:\copy3>ls -l total 6 -rw-r--r-- 1 544 everyone 4080 Oct 24 19:07 MPLBATCH.HTM -rw-r--r-- 1 544 everyone 7155 Oct 24 13:23 MPLJSR.HTMIn a DOS shell the tolower batch file is executed with the following command:
E:\copy3>tolower e:/copy3 rename e:/copy3/MPLBATCH.HTM mplbatch.htm rename e:/copy3/MPLJSR.HTM mpljsr.htm E:\copy3>ls -l total 6 -rw-r--r-- 1 544 everyone 4080 Oct 24 19:07 mplbatch.htm -rw-r--r-- 1 544 everyone 7155 Oct 24 13:23 mpljsr.htm
MPL BATCH 1.1 as of January 02, 2000
Author: Alexander F. Walz, firstname.lastname@example.org
Original file location: http://www.math.utsa.edu/mirrors/maple/mplbatch.htm