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Why do Lua arrays(tables) start at 1 instead of 0?
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Lua is descended from Sol, a language designed for petroleum engineers with no formal training in computer programming. People not trained in computing think it is damned weird to start counting at zero. By adopting 1-based array and string...
What does “fragment” mean in ANTLR?
...tlr4 references book :
Rules prefixed with fragment can be called only from other lexer rules; they are not tokens in their own right.
actually they'll improve readability of your grammars.
look at this example :
STRING : '"' (ESC | ~["\\])* '"' ;
fragment ESC : '\\' (["\\/bfnrt] | UNICODE) ...
Git fast forward VS no fast forward merge
... of commits as a single unit, and merge them as a single unit. It is clear from your history when you do feature branch merging with --no-ff.
If you do not care about such thing - you could probably get away with FF whenever it is possible. Thus you will have more svn-like feeling of workflow.
For...
Formula to determine brightness of RGB color
...olor was used. Each color is represented by 2x2 pixels, colors are sorted from darkest to lightest (left to right, top to bottom).
1st picture - Luminance (relative)
0.2126 * R + 0.7152 * G + 0.0722 * B
2nd picture - http://www.w3.org/TR/AERT#color-contrast
0.299 * R + 0.587 * G + 0.114 * B
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Should I use the Reply-To header when sending emails as a service to others?
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You may want to consider placing the customer's name in the From header and your address in the Sender header:
From: Company A <joe.bloggs@a.com>
Sender: notifications@b.com
Most mailers will render this as "From notifications@b.com on behalf of Company A", which is accurate....
How to create the branch from specific commit in different branch
...added bb.txt) is for example not in the history of 07aeec98. If you branch from 07aeec98, you won't get the changes introduced by 8480e8ae.
In other words: if you merge branch A and branch B into branch C, then create a new branch on a commit of A, you won't get the changes introduced in B.
Same h...
How to deny access to a file in .htaccess
.../directives in the htaccess of subdirectories get applied superceding ones from the parent).
So you can have:
<Files "log.txt">
Order Allow,Deny
Deny from all
</Files>
For Apache 2.4+, you'd use:
<Files "log.txt">
Require all denied
</Files>
In an htaccess fi...
How can I convert tabs to spaces in every file of a directory?
... @DavidW. I would simply update this command to only replace tabs from the beginning of the line. find ./ -type f -exec sed -i 's/^\t/####/g' {} \;. But I wasn't aware of the expand command - very useful!
– Martin Konecny
May 7 '14 at 16:08
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Read input from console in Ruby?
...found in ARGV and only asks to console if not ARGV found. To force to read from console even if ARGV is not empty use STDIN.gets
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DateTime to javascript date
From another answer on Stackoverflow is a conversion from Javascript date to .net DateTime:
10 Answers
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