[log4perl-devel] variable substitution

[Kevin G. <ke...@go...>]

Mike, looking at the variable substitution stuff, when the 
PropertyConfigurator is reading the config file it decides if it's 
looking at a variable definition if the string on the left of the equals 
sign doesn't contain a dot:

	if($key !~ /\./) {

But looking at the java stuff, it looks like the java people are rather 
used to putting dots into their variable names, for instance from their 
docs:

	if java.home system property is set to /home/xyz, then
	every occurrence of the sequence ${java.home} will be
	interpreted as /home/xyz

I gather from the source of OptionConverter.java, (see findAndSubst()) 
that they treat the *entire* config file as a source of possible 
substitutions and don't distinguish between substitution-variable 
definitions and loggers and appenders and stuff.

I don't know how useful that would be, but I have the feeling we'd be 
more compatible if we didn't screen on dots.  What do you think?


--
Happy Trails. . .

Kevin M. Goess
(and Anne and Frank)
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