and how it differs from just a colon?
Example
<property name="CONSOLE_LOG_PATTERN" value="${CONSOLE_LOG_PATTERN:-%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>
Citing references would be much appreciated. Thank you.
As mentioned in the documentation
Under certain circumstances, it may be desirable for a variable to
have a default value if it is not declared or its value is null. As in
the Bash shell, default values can be specified using the ":-"
operator. For example, assuming the variable named aName is not
defined, "${aName:-golden}" will be interpreted as "golden".
Related
Is it possible to configure a non-static value for the metadata field in the wildly json-formatter?
I didn't find anything about it in the wildfly documentation- it only has a simple static field example (meta-data=[#version=1])
For example, I would like to have a field "simpleClassName" - The class of the code calling the log method.
I also tried to use a similar syntax to pattern-formatter(example below) but it doesn't work
<formatter name="JSON">
<json-formatter>
<meta-data>
<property name="simpleClassName" value="%c{1}"/>
</meta-data>
</json-formatter>
</formatter>
No the meta-data is only static information. However what you're looking for seems to be the details of the caller. Note that this is an expensive operation should you should use it with caution. What you'd want to do is change the print-details to true. In CLI it would be something like:
/subsystem=logging/json-formatter=JSON:write-attribute(name=print-details, value=true)
When I run the following regression,
reg subject inSchool#treatment#male
I get comparisons in reference to inSchool=0, treatment=0, and male=0, but I would like to be able to change the reference variables.
For example I would like to have all the comparisons done in reference to inSchool=1,treatment=0, and male=1.
I have used the following characteristic command but it doesn't seem to have an effect.
char inSchool[omit] 1 male[omit] 1
Am I having a syntax issue or is there no way to choose which variable to omit using #
Thanks in advance!
From help fvvarlist:
You can specify the base level of a factor variable by using the ib. operator.
To try to understand, I looked for some code on the internet and found the following declaration of what I suppose to be functions, and that I don't understand at all.
sext #(.inwidth(1), .outwidth(32)) scc_sext_i0(
.i0(paw_0_i0_outport0[32]),
.o0(scc_sext_i0_o0));
combine2_wn #(.inwidth0(32), .inwidth1(32)) scc_combine2_wn_i0(
.i0(paw_0_i0_outport0[31 : 0]),
.i1(scc_sext_i0_o0),
.o0(scc_combine2_wn_i0_o0));
combine2_wn #(.inwidth0(32), .inwidth1(32)) scc_combine2_wn_i1(
.i0(scc_combine2_wn_i2_o0[31 : 0]),
.i1(scc_combine2_wn_i2_o0[63 : 32]),
.o0(scc_combine2_wn_i1_o0));
My questions are the following:
Are these really functions mapping?
If yes, they are not defined in any other lower level .v file (and no library is included either in the top-level file). So what is their use?
What does # symbol mean?
What does .inwidth(32) mean? input of 32 bits? (impossible to find on the internet...)
If yes, the combine2_wn blocks should have only 2 inputs, why is there an output mapped each time?
More generally, are these any kind of concatenation functions?
These are most likely module instantiations, not function calls.
You should have a module named sext and another named combine2_wn declared in files somewhere in your Verilog search path.
#() means you are assigning values to parameters inside the named modules.
There is a parameter named inwidth in the sext module. You are assigning it a value of 1.
There are plenty of references on the web. Look at the verilog wiki site.
Why does this issue a badmatch error? I can't figure out why this would fail:
<<IpAddr, ":*:*">> = <<"2a01:e34:ee8b:c080:a542:ffaf:*:*">>.
You need to specify the size of IpAddr so that it can be pattern-matched:
1> <<IpAddr:28/binary, ":*:*">> = <<"2a01:e34:ee8b:c080:a542:ffaf:*:*">>.
<<"2a01:e34:ee8b:c080:a542:ffaf:*:*">>
2> IpAddr.
<<"2a01:e34:ee8b:c080:a542:ffaf">>
Pattern matching of a binary proceeds left-to-right so it will match IpAddr first before it tries the following segment. There is no back-tracking until there is a match. A default typed variable like IpAddr matches one byte. See Bit Syntax Expressions and Bit Syntax for a proper description and more examples.
As alternative to using pattern matching here you might consider using the binary module. There are two functions which could be useful to you: binary:match/2/3 and binary:split/2/3. These search which may better fit your problem.
As a last alternative you could try using regular expressions and the re module.
What is the meaning of I $E(R%%,I%%)>1 ? and why using %%?
Actually, if you are talking about Standard MUMPS (not any particular implementation)
the R%% is illegal syntax. I have seen the non-standard use of % in extensions to MUMPS, such as EsiObjects or InterSystems Cache Object Script, but the use in the question above is actually nonsense in standard MUMPS.
There is no particular significance to %%. Its just part of the variable name and I still don't understand MUMPS community obsession with using % in variable names and making them more obscure.
so the statement means IF $EXTRACT(R%%,I%%)>1 i.e if the extracted value from the string R%% at position I%% is greater than 1, do some more obscure stuff.
$EXTRACT(string,from) extracts a
single character in the position
specified by from. The from value can
be an integer count from the beginning
of the string, an asterisk specifying
the last character of the string, or
an asterisk with a negative integer
specifying a count backwards from the
end of the string.
Link to documentation: http://docs.intersystems.com/cache20102/csp/docbook/DocBook.UI.Page.cls?KEY=RCOS_fextract