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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for July 18th, 2017

Anyone knows if Raize subscription before the Raize acquisition is still valid?

Posted by jpluimers on 2017/07/18

It’s from a while ago, so I wonder if this is still true:

  I just got my Embarcadero update to RC6 that includes #10Seattle support.


Source: Can I say that I’m a bit disappointed by the way the Raize acquisition has been…

Posted in Delphi, Development, Software Development | 1 Comment »

Mikrotik RouterOS scripting: for loops are a bit of getting used to

Posted by jpluimers on 2017/07/18

Earlier, I wrote “:for loops are a strange beast so I will elaborate on those in a separate post.” so now is the time to do that.

The :for loop documentation is very dense:

Command Syntax Description
for :for <var> from=<int> to=<int> step=<int> do={ <commands> } execute commands over a given number of iterations

So a for loop has these elements:

  • from=
  • to=
  • step=
  • do=

Luckily, the old RouterOS 2.7 documentation on loops (which they’ve revamped after Router OS 2.7 removing many useful examples) has this:

:for – It has one unnamed argument, the name of the loop variable. from argument is the starting value for the loop counter, tovalue is the final value. This command counts loop variable up or down starting at from and ending with to, inclusive, and for each value it executes the do statement. It is possible to change the increment from the default 1 (or -1), by specifying the stepargument.

[admin@MikroTik] > :for i from=1 to=100 step=37  do={:put ($i . " - " . 1000/$i)}
1 - 1000
38 - 26
75 - 13
[admin@MikroTik] >

You might think that from= the start value, to= the finish value and the loop won’t execute when step= a positive value and from= larger than to=. Or that without a step= the loop will always iterate in ascending order.

Wrong! And wrong!

So it’s time for some…

:for loop examples

Read the rest of this entry »

Posted in Development, Internet, MikroTik, Power User, RouterOS, routers, Scripting, Software Development | Leave a Comment »

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