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XPath to select multiple tags
...cal-name()='c' or local-name()='d' or local-name()='e']
is both too-long and incorrect. This XPath expression will select nodes like:
OhMy:c
NotWanted:d
QuiteDifferent:e
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“Debug only” code that should run only when “turned on”
...e here gets executed only when compiled with the DEBUG constant,
// and when the person debugging manually sets the bool above to true.
// It then stays for the rest of the session until they set it to false.
}
#endif
// ...
}
Just to be complete, pragmas (preprocessor directives...
How to un-escape a backslash-escaped string?
...on literal structures: strings, numbers, tuples, lists,
dicts, booleans, and None. (END)
Like this:
>>> import ast
>>> escaped_str = '"Hello,\\nworld!"'
>>> print ast.literal_eval(escaped_str)
Hello,
world!
...
Give all the permissions to a user on a DB
...ng it an admin.
The reason why I want to do that is that at the moment DEV and PROD are different DBs on the same cluster so I don't want a user to be able to change production objects but it must be able to change objects on DEV.
...
Django Cookies, how can I set them?
...he visitor chooses. e.g: User enters in 55812 as the zip. I know what
city and area lat/long. that is and give them their content pertinent
to that area. My question is how can I store this in a cookie so that
when they return they are not required to always enter their zip code?
...
What is the difference between __dirname and ./ in node.js?
When programming in Node.js and referencing files that are located somewhere in relation to your current directory, is there any reason to use the __dirname variable instead of just a regular ./ ? I've been using ./ thus far in my code and just discovered the existence of __dirname , and essenti...
Default value of function parameter
...
If you put the declaration in a header file, and the definition in a separate .cpp file, and #include the header from a different .cpp file, you will be able to see the difference.
Specifically, suppose:
lib.h
int Add(int a, int b);
lib.cpp
int Add(int a, int b = ...
How to make the 'cut' command treat same sequental delimiters as one?
...olumn-based, 'space'-adjusted text stream. I'm trying to use the cut command in the following manner:
5 Answers
...
Determine which JAR file a class is from
... answered Dec 31 '09 at 4:04
Chandra PatniChandra Patni
16.1k1010 gold badges4747 silver badges6161 bronze badges
...
Are empty HTML5 data attributes valid?
... attributes specification doesn't mention any changes to empty attributes handling, so the general rules about empty attributes apply here:
Certain attributes may be specified by providing just the attribute name, with no value.
In the following example, the disabled attribute is given with the emp...