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Learning to write a compiler [closed]
... to post this reference here: tutorialspoint.com/compiler_design/index.htm What I liked about this site is that it doesn't get involved with actually writing any code to create a compiler, but it does break down the compiler into its parts: phases and stages. It does describe the logic and algorithm...
How to free memory in Java?
...rbage collector.
This memory management whitepaper (PDF) may help explain what's going on.
You can also call System.gc() to suggest that the garbage collector run immediately. However, the Java Runtime makes the final decision, not your code.
According to the Java documentation,
Calling the...
git produces Gtk-WARNING: cannot open display
...HEL 6.8 server and trying to clone a github.com repo from the RHEL box) so what I did was clone via an SSH key rather than HTTPS username/password. e.g. I used git@github.com:MyUsername/myproject.git rather than the https url. I also appropriately uploaded my public key into Github. This method work...
How can I replace a newline (\n) using sed?
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sed is intended to be used on line-based input. Although it can do what you need.
A better option here is to use the tr command as follows:
tr '\n' ' ' < input_filename
or remove the newline characters entirely:
tr -d '\n' < input.txt > output.txt
or if you have the GNU ver...
How to produce a range with step n in bash? (generate a sequence of numbers with increments)
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my understanding is that seq is a part of coreutils. what is non-standard about it? arguments? thanks for your help.
– SilentGhost
Jun 8 '09 at 18:14
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Detect URLs in text with JavaScript
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Here is what I ended up using as my regex:
var urlRegex =/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig;
This doesn't include trailing punctuation in the URL. Crescent's function works like a...
How to use Chrome's network debugger with redirects
... force Chrome to not clear the Network debugger, but this might accomplish what you're looking for:
Open the js console
window.addEventListener("beforeunload", function() { debugger; }, false)
This will pause chrome before loading the new page by hitting a breakpoint.
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Reading Properties file in Java
...rchy is: src -> myPackage -> myClass.java , myProp.properties. I did what you advised me but it still throws the same exception
– nikos
Nov 27 '11 at 13:03
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Can linux cat command be used for writing text to file?
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That's what echo does:
echo "Some text here." > myfile.txt
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Git and Mercurial - Compare and Contrast
...nches" should in my opinion be called commit labels instead, because it is what they are. There are situations where "named branch" can have multiple tips (multiple childless commits), and can also consist of several disjoint parts of graph of revisions.
There is no equivalent of those Mercurial "e...