BIND 10 #1892: Check mode of logger

[BIND 10 Development]

#1892: Check mode of logger
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                   Reporter:         |                 Owner:  muks
  vorner                             |                Status:  assigned
                       Type:  task   |             Milestone:
                   Priority:         |  Sprint-20120501
  medium                             |            Resolution:
                  Component:         |             Sensitive:  0
  logging                            |           Sub-Project:  Core
                   Keywords:         |  Estimated Difficulty:  5
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Changes (by muks):

 * owner:   => muks
 * status:  new => assigned


Comment:

 Currently the placeholders are replaced in this manner:

 LOG_DEBUG(...,"$1 $2").arg("foo").arg("bar")

 Will:

 1. call arg() with "$1 $2", returning "foo $2"
 2. call arg() with "foo $2" which returns "foo bar"

 We can check if there are fewer $ placeholders than the number of arg()
 [there is already such a check], but we can't check if there are more $
 placeholders as arg() only knows about replacing one argument and returns
 a Formatter on which arg() can be called again.

 Comments?

-- 
Ticket URL: <http://bind10.isc.org/ticket/1892#comment:3>
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