Is there any way to generate as a preprocessor macro and the use of the concatenate directive the cases for a switch-case statement. Im using C and I would like to create several cases for a switch.case statement as.
#define select_case(value) \
switch (values) \ Assume an enum with the values
case prefix_##value: \
break;\
default:\
break;\
That is a general idea. did you get me? Is it possible?
Related
I try to convert a filename such as foo/bar/baz.proto into something like foo/bar/Baz.java in my Makefile. For this purpose, I thought I could use sed. However, it seems that the command does not work as expected:
uppercase_file = $(shell echo "$(1)" | sed 's/\(.*\/\)\(.*\)/\1\u\2/')
# generated Java sources
PROTO_JAVA_TARGETS := ${PROTO_SPECS:$(SRCDIR)/%.proto=$(JAVAGEN)/$(call uppercase_file,%).java}
When I try to run the sed command on the command line it seems to work:
~$ echo "foo/bar/baz" | sed 's/\(.*\/\)\(.*\)/\1\u\2/'
foo/bar/Baz
Any ideas why this does not work inside the Makefile?
UPDATE:
The java files are generated with the following target:
$(JAVAGEN)/%.java: $(SRCDIR)/%.proto
How can I apply the substitution also for targets?
GNU Make does not replace % character in the replacement part of a substitution reference (which is basically a syntactic sugar for patsubst) if it is part of a variable reference. I have not found this behavior described in the documentation, but you can look it implemented in the source code (the relevant function I believe is find_char_unquote).
I suggest moving the call out of the substitution reference, since uppercase_file obviously works properly on any file path:
PROTO_JAVA_TARGETS := $(call uppercase_file,${PROTO_SPECS:$(SRCDIR)/%.proto=$(JAVAGEN)/%.java})
If $(PROTO_SPECS) resolves not to a single element, but rather to a list of elements, you can use foreach to call the function on every elements of a processed list:
PROTO_JAVA_TARGETS := $(foreach JAVA,${PROTO_SPECS:$(SRCDIR)/%.proto=$(JAVAGEN)/%.java},$(call uppercase_file,$(JAVA)))
The java files are generated with the following target: $(JAVAGEN)/%.java: $(SRCDIR)/%.proto
How can I apply the substitution also for targets?
Since Make matches targets first, and there is no way to run sed backwards, what you need here is either define an inverse function, or generate multiple explicit rules. I will show the latter approach.
define java_from_proto
$(call uppercase_file,$(1:$(SRCDIR)/%.proto=$(JAVAGEN)/%.java)): $1
# Whatever recipe you use.
# Use `$$#`, `$$<` and so on instead of `$#` or `$<`.
endef
$(foreach PROTO,$(PROTO_SPECS),$(eval $(call java_from_proto,$(PROTO))))
We basically generate one rule per file in $(PROTO_SPEC) using a multiline variable syntax, and then use eval to install that rule. There is also a very similar example on this documentation page that can be helpful.
I need to make a Tcl program that logs into a web page and i need to fill up some information and get some information.
The page has lots of forms with diferent types of input, radio/check buttons, entry strings etc the usual.
i can log into the page no problem and fill up the forms without a problem but i have to fill EVERY input for that particular form or else it will be save as empty (the things i didnt specify)
Heres an example:
this is the form:
--- FORM report. Uses POST to URL "/goform/FormUpdateBridgeConfiguration"
Input: NAME="management_ipaddr" (TEXT)
Input: NAME="management_mask" (TEXT)
Input: NAME="upstr_addr_type" VALUE="DHCP" (RADIO)
Input: NAME="upstr_addr_type" VALUE="STATIC" (RADIO)
--- end of FORM
and this is the command i use to fill it up
eval exec curl $params -d upstr_addr_type=STATIC https://$MIP/goform/FormUpdateBridgeConfiguration -o /dev/null 2> /dev/null
where params is:
"\--noproxy $MIP \--connect-timeout 5 \-m 5 \-k \-S \-s \-d \-L \-b Data/curl_cookie_file "
yes i know is horrible but it is what it is .
In this case i want to change the value of upstr_addr_type to STATIC but when i sumit it i lose the info from management_ipaddr and management_mask.
This is a small example, i have to do this for every form and a gizillion more variables so its a real problem for me.
i figure its concept problem or something like that, i look and look and look some more, try -F -X GET -GET -almost every thing on cURL manual, can someone guide me here
If you know what the values of management_ipaddr and management_mask should be, you can just supply them as extra -d arguments. It probably makes sense to wrap this in a procedure
proc UpdateBridgeConfiguration {management_ipaddr management_mask upstr_addr_type} {
global MIP params
eval exec curl $params \
-d management_ipaddr=$management_ipaddr \
-d management_mask=$management_mask \
-d upstr_addr_type=$upstr_addr_type \
"https://$MIP/goform/FormUpdateBridgeConfiguration" \
-o /dev/null 2> /dev/null
# You ought to replace the first line of the above call with:
# exec curl {*}$params \
# Provided you're not on Tcl 8.4 or before...
}
Like that, you'll find it much easier to get the call correct. (You shouldn't need to specify -X POST for this; it's default behaviour when -d is provided.)
To get the existing values, you'll need to GET them from the right URL (which I can't guess for you) and extract them from the resulting HTML. Which might involve using a regular expression against the retrieved document. This is pretty awful, but it's what you're stuck with sometimes. (You can use tDOM to parse HTML properly — provided it isn't too ill-formed — and then use its XPath support to query for the values correctly, but that's rather more complex and introduces a dependency on an external package.) Knowing what the right RE to use is can be tricky, but it is likely to involve grabbing a copy of the form and doing something vaguely like this:
regexp -nocase {<input type="text" name="management_ipaddr" value="([^<"">]*)"} $formSource -> management_ipaddr
regexp -nocase {<input type="text" name="management_mask" value="([^<"">]*)"} $formSource -> management_mask
While in general it could be encoded all sorts of ways, that's very unlikely for IP addresses or masks! On the other hand, the order of the attributes can vary; you have to customize your RE to what you're really dealing with, not merely what it might be…
The curl invokation will be something like
set formSource [exec curl "http://$MIP/the/right/url/here" {*}$params 2>/dev/null]
It's much simpler when you're not having to send data up and you want to consume the result.
How to extract a Query Param with $ symbol in apigee using extract variable eg $filter The URL and query param is like this http://example.api.net/extract_dollar?$filter=abc&$format=json
Here i have to extract the Query Param variable $filter
The $ character isn't URI compliant and will be escaped (or not work at all) so it should come in as %24filter rather than $filter.
That said, I was able to use the AssignMessage Policy to set a variable accessing the queryparam $hello (sent in either as a $ or a %24 from my console).
<AssignVariable>
<Name>name</Name>
<Value/>
<Ref>request.queryparam.$hello</Ref>
</AssignVariable>
Really, it shouldn't work so keep in mind that when you use non-standard naming practices like dollar signs in your query params it may stop working sometime in the future, but this will get you there for now.
I have a preprocessor macro that represents a hierarchical path into my design.
Example:
`define HPATH top.chip.block
I need to construct a string which holds the value of `HPATH, so in my example the string should equal top.chip.block.
Is there a way to construct such a string?
None of the following attempts worked:
string hpath;
hpath = "`HPATH"; // Results in hpath = "`HPATH"
hpath = \"``HPATH\"; // Doesn't compile
hpath = `HPATH; // Doesn't compile
I want hpath to be equivalent to doing this assignment hpath = "top.chip.block", but by using `HPATH instead of specifying the path again.
I cannot use %m because I need the string within my top-level UVM environment, not within a module.
A little more background: the reason I want to do this is because I am using backdoor register access in the UVM class library. The backdoor API requires setting the hdl_path to the blocks within the design, as a string. I already have `defines for the hierarchical paths and am trying to reuse those when specifying the hdl_paths so I don't have the same path defined twice. My testbench will use both the hierarchical path and the string path.
It's not possible to use a `define macro within a string literal. According to the SystemVerilog LRM:
Macro substitution and argument substitution shall not occur within string literals.
However a string literal can be constructed by using a macro that takes an argument and including the quotes in the macro by using ``"`.
Again, from the LRM:
An `" overrides the usual lexical meaning of " and indicates that the expansion shall include the quotation
mark, substitution of actual arguments, and expansions of embedded macros. This allows string literals to be
constructed from macro arguments.
So this works:
`define STRINGIFY(x) `"x`"
`define HPATH top.chip.block
string hpath = `STRINGIFY(`HPATH);
$display(hpath); // Output: "top.chip.block"
The example code can be run here: http://www.edaplayground.com/s/4/879
I know this is an old thread, but I thought I'd share our solution. The use of the $sformatf allows additional information to be added if needed.
`define STRINGIFY(DEFINE) $sformatf("%0s", `"DEFINE`")
I think this is what you're looking for.
`define HPATH `"top.chip.block`"
string hpath = `HPATH;
As toolic pointed out, the escape sequence %m will give you the current hierarchy when used in a $display statement so that may be a better option.
In Sas9, how can I replace all the , \ / or spaces, and other special characters of my choosing with underscores? A solution either in a datastep or in macro functions would do the trick, I'm just looking for a method to do it.
Thanks
You can use the Perl regular expression functionality built into SAS.
data tmp;
set tmp;
var1 = prxchange('s/[,\/\\]/_/', -1, var);
run;
or something similar.
The translate function might be what you're looking for
field2 = translate(trim(field_name),'_______',' ,.\/()')
Make sure to have as many underscores as you have special characters. Also, because you're translating spaces, you have to use the trim function or else you'll get a bunch of underscores after the name.