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Can you add new statements to Python's syntax?
...to simplify programming. Also note that since Parser/asdl_c.py is a Python script, this is a kind of bootstrapping - to build Python from scratch, Python already has to be available.
While Parser/asdl_c.py generated the code to manage our newly defined AST node (into the files Include/Python-ast.h ...
Lock Escalation - What's happening here?
...able (removing a column) in SQL Server 2008, I clicked the Generate Change Script button and I noticed that the change script it generated drops the column, says "go" and then runs an additional ALTER TABLE statement that appears to set the lock escalation for the table to "TABLE". Example:
...
How to check if a Unix .tar.gz file is a valid file without uncompressing?
...gzip.htm
from: http://unix.ittoolbox.com/groups/technical-functional/shellscript-l/how-to-test-file-integrity-of-targz-1138880
To test the gzip file is not corrupt:
gunzip -t file.tar.gz
To test the tar file inside is not corrupt:
gunzip -c file.tar.gz | tar -t > /dev/null
As part of the ...
Shell script - remove first and last quote (") from a variable
Below is the snippet of a shell script from a larger script. It removes the quotes from the string that is held by a variable. I am doing it using sed, but is it efficient? If not, then what is the efficient way?
...
How to output something in PowerShell
I am running a PowerShell script from within a batch file. The script fetches a web page and checks whether the page's content is the string "OK".
...
Best practice for embedding arbitrary JSON in the DOM?
...n addresses this use:
"When used to include data blocks (as opposed to scripts), the data
must be embedded inline, the format of the data must be given using
the type attribute, the src attribute must not be specified, and the
contents of the script element must conform to the requirements...
Draw on HTML5 Canvas using a mouse
...
Here is a working sample.
<html>
<script type="text/javascript">
var canvas, ctx, flag = false,
prevX = 0,
currX = 0,
prevY = 0,
currY = 0,
dot_flag = false;
var x = "black",
y = 2;
...
What is output buffering?
..., your HTML is sent to the browser in pieces as PHP processes through your script. With output buffering, your HTML is stored in a variable and sent to the browser as one piece at the end of your script.
Advantages of output buffering for Web developers
Turning on output buffering alone decreases t...
How do I pass variables and data from PHP to JavaScript?
I have a variable in PHP, and I need its value in my JavaScript code. How can I get my variable from PHP to JavaScript?
19 ...
How do I script a “yes” response for installing programs?
I work with Amazon Linux instances and I have a couple scripts to populate data and install all the programs I work with, but a couple of the programs ask:
...