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eupher
Apprentice
Joined: 18 Jan 2001
Posts: 116
Location: USA
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 Posted: Fri Apr 29, 2011 11:12 am
Enabling a trigger inside the execution of another trigger...
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I've encountered a behavior in trigger processing that seems counter-intuitive, and just wanted to make sure it was intended.
If you have a trigger fire and enable another trigger, the trigger pattern that just got enabled gets tested against the output that already fired the first trigger. I was assuming (and this was causing problems) that if you enable a trigger *after* a line of input has already been received, then it wouldn't get tested against that line. I can sort of see what's happening, because if I change the priority of the first trigger to be a higher number than the one it enables then the newly enabled trigger does not get applied to the last line.
Here's a sample of the behavior I'm talking about. Again, it may be intended. I just found it surprising and it took me a while to figure out what was going wrong in my script. 
| Code: |
<class name="Trigger_Test" id="41">
<trigger name="FIRSTTRIGGER" priority="420" case="true" regex="true" id="42">
<pattern>^First Trigger$</pattern>
<value>#TEMP {$} {#T- SECONDTRIGGER}
#T+ SECONDTRIGGER</value>
</trigger>
<trigger name="SECONDTRIGGER" priority="430" case="true" regex="true" enabled="false" id="43">
<pattern>^\w+ Trigger$</pattern>
<value>#MESSAGE %line</value>
</trigger>
<alias name="test_trigger" id="44">
<value>#ECHO First Trigger
#ECHO Second Trigger
#ECHO ""</value>
</alias>
</class> |
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eupher
Apprentice
Joined: 18 Jan 2001
Posts: 116
Location: USA
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Posted: Fri Apr 29, 2011 11:13 am
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Oh, sorry... running CMUD 3.34
Thanks |
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Rahab
Wizard
Joined: 22 Mar 2007
Posts: 2320
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Posted: Fri Apr 29, 2011 1:24 pm
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Yes, that is intentional. In addition to controling this through the priority, there is a trigger option which can prevent further triggers from firing.
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