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|    BATPOWER    |    Batch Language Programming    |    216 messages    |
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|    Message 59 of 216    |
|    Richard Webb to all    |
|    another convoluted brainteaser for the g    |
|    12 Jan 12 21:46:00    |
      HI Folks,              following up a message from Richard Webb to all:              RW> One thing I've always wanted to implement was a bit of a       RW> history section, keyed by date. These go out on Sunday       RW> mornings, of course.              RW> This batch would run at midnight utc on Sunday of course adn prepare       RW> the history information, compiling into it a file       RW> that the weekly email generator code would find.              A couple of changes since that post ...              First, I came to the brilliant realization that when HOrst's count increments       or decrements a numeric environment       variable it's going to nuke the leading 0 if it exists.              So, we rename all the files for months under 10 such as       315.* 518.* etc. etc.              This means we set the %NEWS% environment variable a little       bit differently as well, by playing with HOrst's count then       moving it to where we want it, to lose any leading 0 that       would have been generated.              AS for what happens with the month turnover, we could lose       the prepend leading 0 to single digit months code of course, and then use       ifnumber to see if %NEWS% and %TURNOVER% are       equal. IF so, we reset %NEWS% to the date found in       %TURNOVER%       and call another batch. Because of this, we also create       semaphores for each day in the original batch.              An example, since we'll always have the proper date for       Sundays we don't need to test for turnover, but on mondays ...        :chkmon       count NEWS +1       ifnumber %NEWS% biggerequivalthan %TURNOVER%       if errorlevel 255 goto conmon       if errorlevel 1 goto turnover       goto conmon       :conmon       echo %NEWS% >> c:\hold\work\mon.sem       call mmsnhist.bat %NEWS%       if exist c:\hold\work\history.dat goto monhist       goto chktue              So, if turnover is reached, we branch to that label, reset       the env var %NEWS% and call rollhist.bat which checks for       the flag files, branches, and moves on.              Still open to suggestions if anybody sees an easier way to       roll this.                     Regards,        Richard       ---        * Origin: (1:116/901)    |
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