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How do I match any character across multiple lines in a regular expression?
...lt; "$str" (-0 slurps the whole file into memory, -p prints the file after applying the script given by -e). Note that using -000pe will slurp the file and activate 'paragraph mode' where Perl uses consecutive newlines (\n\n) as the record separator.
gnu-grep - grep -Poz '(?si)abc\K.*?(?=<Foobar&...
Most used parts of Boost [closed]
...smart ptrs
Boost was a massive help when I wrote my first cross-platform app - without it I really would have struggled.
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Transaction isolation levels relation with locks on table
...(yes, two tables can be logically but not physically related in real-world apps =\).
READ COMMITTED - lock on committed data. You can read the data that was only committed. This means A writes data and B can't read the data saved by A until A executes a commit. The problem here is that C can update ...
Simple argparse example wanted: 1 argument, 3 results
... argument like this: parser.add_argument('install', help='Install the app') (Notice you can't define a positional argument with required=True)
– Diego Navarro
Sep 20 '11 at 6:54
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Removing duplicates from a list of lists
...omment, normal optimization efforts are focused on large inputs (the big-O approach) because it's so much easier that it offers good returns on efforts. But sometimes (essentially for "tragically crucial bottlenecks" in deep inner loops of code that's pushing the boundaries of performance limits) on...
Unescape HTML entities in Javascript?
...n jsFiddle (view in IE). The version above works with all inputs.
UPDATE: appears this doesn't work with large string, and it also introduces a security vulnerability, see comments.
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Invalidating JSON Web Tokens
... working on, I'm thinking about switching over from a cookie based session approach (by this, I mean, storing an id to a key-value store containing user sessions in a user's browser) to a token-based session approach (no key-value store) using JSON Web Tokens (jwt).
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Using GPU from a docker container?
...ve built a container FROM nvidia/cuda and the container runs fine, but the app (Wowza) isn't recognizing the GPUs while it does just fine when run directly on the host (this host, so I know drivers are fine). I'm running 361.28. The host is EC2 using the NVidia AMI on g2.8xlarge.
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Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
... WOW!!! This resulted in an order of magnitude improvement in my app for this specific line of code. By precomputing upper-lower my profiling went from 25% time of this function to less than 2%! Bottleneck is now addition and subtraction operations, but I think it might be good enough now ...
Benefits of header-only libraries
...ep for the user - compiling your library before using it.
Of course, this applies on a case-by-case basis. For example, header-only libraries sometimes increase code size & compilation times.
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