SMAT Reader

[garry r fisher]

Hi,

I won’t bother you with the details but I needed to edit every transaction matching a pattern in a SMAT file before I could resend.

This little utility uses the .idx to parse the .msg file and write the data to a simple text file. Its liberally commented so hopefully you should be able to make sense of it.

Any suggestions email me on garry.fisher/at/isoftplc/dot/com

regards

Garry

Topic

[David Harrison]

Garry,

That’s handy. I’ve modified it to extract the timestamp to append to each message. Is there a neat way in tcl to convert epoch time (unix) to standard date and time also allowing for daylight saving?

Dave

[Charlie Bursell]

clock format

[Charlie Bursell]

Just a tip.  There are many unique and useful utilities that you can write that use the SMAT files.  You just need to be aware of the format of the files.

The .idx file contains lists of keyed lists.  Therefore it can best be read using the lgets command.  The lgets command will read a whole list at a time.  Since the list is just one element, to access it as a keyed list, simply remove it from the list context.  For example, consider a SMAT file with name of foo.idx:

set fd [open foo.idx]     ;# Default mode is read only

while {[lgets $fd klist] >= 0}  {

     set klist [lindex $klist 0]    ;# Remove from list format

     echo [keylkeys klist]

     # Add you own code here

}

The echo would yield:

MID SRCMID TYPE SOURCECONN ORIGSOURCECONN DESTCONN ORIGDESTCONN TIME PRIORITY DATAFMT SAVECONTEXT OFFSET LENGTH

For example to read the associated .msg file, just move to [keylget klist OFFSET] and read [keylget klist LENGTH] bytes.

You can get any other data you want from the .idx file by using keyed list commands.  You could also set up searches, etc.  Its left to your own needs and imagination.  After all that’s why you get paid the big bucks  😛

Hope this helps

Charlie

[garry r fisher]

Hi Charlie,

Thanks for this. I knew it was a keyed list but I only wanted a specific field so I simply did a search.

I’ll modify my script to use an lget as another example for the hordes to use:-)

Garry

[garry r fisher]

Hi,

As promised a version of my SMAT reader that uses the keyed list commands.

I’ve also used the .htc extension so that it runs in the hci environment.

Regards

Garry

[Author]

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