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How do HTML parses work if they're not using regexp?
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Regular expressions are just one form of parser. An honest-to-goodness HTML parser will be significantly more complicated than can be expressed in regexes, using recursive descent, prediction, and several other techniques to properly interpret the text. If y...
What Does 'Then' Really Mean in CasperJS
I'm using CasperJS to automate a series of clicks, completed forms, parsing data, etc through a website.
3 Answers
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Why is lock(this) {…} bad?
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It is bad form to use this in lock statements because it is generally out of your control who else might be locking on that object.
In order to properly plan parallel operations, special care should be taken to consider possible deadl...
Can I have an IF block in DOS batch file?
... his problem. I was simply posting an example of the proper syntax. Either form is acceptable in this case, just as would be if 0 == 0 or any other trivial expression. But indeed, make sure that you understand the difference between the environment variable %ERRORLEVEL% and the internal ERRORLEVEL o...
The Definitive C++ Book Guide and List
...C++ that covers just about everything in the language in a very accessible format and in great detail. The fifth edition (released August 16, 2012) covers C++11. [Review]
* Not to be confused with C++ Primer Plus (Stephen Prata), with a significantly less favorable review.
Programming: Principles a...
Difference between Node object and Element object?
...list of child nodes and a nextSibling and previousSibling. That structure forms a tree-like hierarchy. The document node would have its list of child nodes (the head node and the body node). The body node would have its list of child nodes (the top level elements in your HTML page) and so on.
So...
What is the difference between Digest and Basic Authentication?
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Digest Authentication communicates credentials in an encrypted form by applying a hash function to: the username, the password, a server supplied nonce value, the HTTP method and the requested URI.
Whereas Basic Authentication uses non-encrypted base64 encoding.
Therefore, Basic Auth...
Best practice for Django project working directory structure
...y prepared to publish as open-source. I've taken example
below from django-forme
~/projects/django-app/
docs/
app/
tests/
example_project/
LICENCE
MANIFEST.in
README.md
setup.py
pytest.ini
tox.ini
.travis.yml
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Name of directories is clear (I hope). I put test files outside app directory,
but it...
What is the difference between YAML and JSON?
... items within a YAML file using "anchors." Thus it can handle relational information as one might find in a MySQL database.
YAML is more robust about embedding other serialization formats such as JSON or XML within a YAML file.
In practice neither of these last two points will likely matter for ...
Functional programming - is immutability expensive? [closed]
...sort is not by definition in-place). It requires additional storage in the form of stack space for the recursive step, which is in the order of O(log n) in the best case, but O(n) in the worst case.
Implementing a functional variant of quicksort that operates on arrays defeats the purpose. Arrays ar...