Resource Reference

Resource: message

Resource message
Overview Specifies level of messages to be displayed
Command Line -me=level
Environment Variable wxpmess
Possible Values
Default Value out2

Each WXP program will produce various types of textual output.  The bulk of this is informative in terms of menus, prompts and messages describing the processing of data and what is going on behind the scenes.  The output is then prioritized by message level.  The major levels are as follows:

There are sublevels which allow the user to be even more selective.  They are as follows in the order list:

Each program will list what is printed under each level in the Program Reference.

Setting the message resource

By using the message resource, you can selectively turn on and off various types of output.  The first form just specifies a message level:


This will enable the level out1 (and all of its sublevels) plus all levels of higher priority (including print, error, warn, mess).

WXP also allows you to selectively turn levels on and off:


This will still default to out2 so all higher priority levels will be included but you will also print out all messages with either out3a or out4 priorities.  To print just those levels, you need to turn off all printing first:


This way you can be highly selective.

Paging options

In some WXP programs, the amount of text output requires an automatic pause.  This is set so that one page of text (22 lines) is shown at any one time.  You will see the following:

   Press return to continue

You must hit the return key to see the next screenfull of output.  

In some cases like printing the output, you may want to turn this feature off:


In some cases, you may want to pause program output (especially in debug model) on programs that don't have automatic pauses.  To do this, you specify:


If the 22 line limit is a bit too small (since Xterms can have 50 or more lines in them), you can change the number of lines:


File output options

Since all output from WXP goes through the message facility, it is easy to turn messages on and off by setting the message level.  The other capability would be to output the text to a file.  WXP offers several possibilities. The first is to output the text directly to a file with no output to the screen.


This will direct all output to filename.  If you want to echo the output to the screen as well, add a plus "+":


The final option is to prepend a date/time string to the beginning of each line in the data file:


The output will look like:

   96 DEC 7 22:13:15 UTC -- Searching for ILX...

There is one more possibility and that is to pipe the output to another program.  For example, we want to print the sounding data directly from WXP without saving the output to a file first:

   uacalplt -cu -id=ILX -me="+fi=|print"

All the output that goes to the screen will also be piped to the printer (the print command in this case).  You will notice the quotes around the specification.  This is to make sure the "|print" is not interpreted by the shell.  If you leave the quotes off, the output will only go to the printer and nothing will show up on the screen.  This setup insures the user will see the output on the screen and also get a hardcopy of the output.

Last updated July 30, 1998