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lexers vs parsers
...structure is essential.
The fact that tokens are identified with a regular set based lexer
does not change the situation, because CF composed with regular still
gives CF (I am speaking very loosely about regular transducers, that
transform a stream of characters into a stream of token).
However, CF...
List vs tuple, when to use each? [duplicate]
...he tuple.
Tuples are faster than lists. If you're defining a constant set of values and all you're ever going to do with it is iterate through it, use a tuple instead of a list.
It makes your code safer if you “write-protect” data that does not need to be changed. Using a tuple instead of a...
RegEx for matching UK Postcodes
... ^^
Problem 3 - Improper Character Set
See regex in use here.
^([Gg][Ii][Rr] 0[Aa]{2})|((([A-Za-z][0-9]{1,2})|(([A-Za-z][A-Ha-hJ-Yj-y][0-9]{1,2})|(([AZa-z][0-9][A-Za-z])|([A-Za-z][A-Ha-hJ-Yj-y][0-9]?[A-Za-z])))) [0-9][A-Za-z]{2})$
...
Create a custom callback in JavaScript
... requires arguments into a callback that doesn't pass any arguments. Think setTimeout(). The answer is to wrap the callback in a closure: doSomething(function(){foo('this','should','work')})
– slebetman
Feb 3 '10 at 10:12
...
How to add ASP.NET 4.0 as Application Pool on IIS 7, Windows 7
...e the site you want to modify (select it)
To the right you'll notice Basic Settings... just below the Edit Site text. Click this, and a new window should appear
Select the .NET 4 AppPool using the Select... button and click ok.
Restart the site, and you should be good-to-go.
(You can repeat steps 7...
py2exe - generate single executable file
... never figured it out. Has anyone successfully done this? Can I see your setup.py file, and what command line options you used?
...
How do I reset a sequence in Oracle?
...
Here is a good procedure for resetting any sequence to 0 from Oracle guru Tom Kyte. Great discussion on the pros and cons in the links below too.
tkyte@TKYTE901.US.ORACLE.COM>
create or replace
procedure reset_seq( p_seq_name in varchar2 )
is
l_v...
Why is vertical-align: middle not working on my span or div?
...
Setting the line-height to the same height as it's containing div will also work
DEMO http://jsfiddle.net/kevinPHPkevin/gZXWC/7/
.inner {
line-height:72px;
border: 1px solid #000000;
}
...
Post-increment and pre-increment within a 'for' loop produce same output [duplicate]
...ion ++i doesn't create a temporary variable. Sure, any decent optimization setting should be able to optimize this away when the object is something simple like an int, but remember that the ++-operators are overloaded in more complicated classes like iterators. Since the two overloaded methods migh...
What is the difference between parseInt(string) and Number(string) in JavaScript? [duplicate]
... one extra thing I used in parseInt() function. parseInt("string",10) will set the number to decimal format. If you would parse string like "08" you would get 0 because 8 is not a octal number.Explanation is here
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