How do I do mv original.filename new.original.filename without retyping the original filename? I would imagine being able to do something like mv -p=new. original.filename or perhaps mv original.filename new.~ or whatever - but I can't see anything like this after looking at man mv / info mv pages. Of course, I could write a shell scri...
In Javascript I have defined a regular expression and now a user is typing in a string. I want to tell him if his string still could match the RegExp if he continues typing or if he's already on the wrong way. For instance: var re = /a*b/; "a".isPrefixOf( re ); // true "x".isPrefixOf( re ); // false How could an implementation of isP...
I would like to split the example string -- ~Peter~Lois~Chris~Meg~Stewie on the character '~' and have the result be Peter Lois Chris Meg Stewie Using a standard string split function in javascript or C# the first result is of course an empty string. I'd like to avoid having to ignore the first result because the first result may act...
My MIPS Assembly class required me to read in an expression of unknown size into a Parse Tree. I've never had to deal with trees, so this is how I went around storing values: Lets say the user entered the expression 1 + 3 - 4 (each operand could only be a digit 1-9) My leftmost child node would be the starting point and contain 2 piec...
What conventions are people here following for naming of instance variables and method arguments - particularly when method arguments are used to set ivars (instance variables)? In C++ I used to use the m_ prefix for ivars a lot. In C# I followed the convention of disambiguating purely by use of this. for ivars. I've since adopted the e...
Hi, There is a data set of "file" - name of file, and 32bit number is following after it - something like hash for the file. "file1" 6a9bd9a6 1df3b24b 7ab054dc "file2" 6a9bd54e 1df3b24b 8cd054dc "file3" 6a9bd9a6 7ab054dc How am I going to get unique files so s2 is not a prefix of any other s2 - that means the number is unique. If the...
I'm currently implementing a radix tree/patricia trie (whatever you want to call it). I want to use it for prefix searches in a dictionary on a severely underpowered piece of hardware. It's supposed to work more or less like auto-completion, i. e. showing a list of words that the typed prefix matches. My implementation is based on this ...
When i'm starting the server with the path option script/server --path=/myapp while having a route map.route 'foo', :controller => 'bar', :action => 'buzz' then ActionController::Routing::Routes.recognize_path('/myapp/foo') raises an error "No route matched ..." Question: How can i make Rails built-in routing recognize with p...
Becuase I've overloaded the operator++ for an iterator class template typename list::iterator& list::iterator::operator++() { //stuff } But when I try to do list::iterator IT; IT++; I get a warning about there being no postifx ++, using prefix form. How can I specifically overload the prefix/postifx forms? ...
Hi, AS3 RegExp engine (and ECMAScript based JavaScript) do not support complex "lookbehind" expressions. (lookahead expressions are fully supported.) For example: (?<=<body>)(.*?)(?=<\/body>) will work but; (?<=<body\b[^>]*>)(.*?)(?=<\/body>) will not work in AS3. What I need is to match a complex prefix but exclude it in the ...
I’ve been developing solutions with databases for more than 11 years now, and it seems I’ve “developed” a rather controversial opinion about naming columns in my tables: I always give them a 3 or 4 character type prefix, i.e. intGroupID, nvcTitle, dtmCreated, bitPlayerHater, etc. I’ve worked with several other developers who all absolute...
Hi, imagine a situation where you have an application that needs to import data from different sources. For each of these sources exists a seperate model (often not related to the others). So let's say i have my software component X which does all the importing, the namespace is correspondingly X. In X i have all my different parsers a...
Hi there, I am using Eclipse to write some Java code and the naming convention that I am following uses an 'm' as a prefix to any member variables for a class. As soon as I write the member variables I like to go to Source -> Generate Getters and Setters. This generates the methods that I require. However, the method and parameter names...
I am trying to show by example that the prefix increment is more efficient than the postfix increment. In theory this makes sense: i++ needs to be able to return the unincremented original value and therefore store it, whereas ++i can return the incremented value without storing the previous value. But is there a good example to show t...
Hello, PHP's extract() function can take on one of several extract_types. But what's the difference between extr_prefix_same and extr_prefix_if_exists? The manual makes it sound like, in either case, new variables will be prefixed if the variable name already exists. Thanks! ...
I wanna create an element in my XSL 1.0 with some namespace Just like this: <element xmlns:a = '...' xmlns:b = '...' xmlns = '...' > For some reason I can't use XSL 2.0, with <xsl:namespace> extension, there is only one allowed namespace declared for each element in XSL 1.0,how should I do? Regards, ...
I have a mysql table with about 1000 rows in it. id column 1 apple 2 banana ... etc I need a mysql query (UPDATE) to wrap (prefix & suffix) all values in a column with a specific string, let's say "_", so I am expecting a result: id column 1 _apple_ 2 _banana_ ... etc How to do that? Please, advice. ...
Hi all, I have a lit of files (which I get from find bla -name "*.so") such as: /bla/a1.so /bla/a2.so /bla/blo/a3.so /bla/blo/a4.so /bla/blo/bli/a5.so and I want to rename them such as it becomes: /bla/liba1.so /bla/liba2.so /bla/blo/liba3.so /bla/blo/liba4.so /bla/blo/bli/liba5.so ... i.e. add the prefix 'lib' to the basename any ...
Hi all, I have a list of file path like that: FILE_PATH := a1.so a2.so bla/a3.so bla/a3.so bla/blo/a4.so.... I need to add a prefix to the basename in order to get: FILE_PATH_PREFIX := liba1.so liba2.so bla/liba3.so bla/liba3.so bla/blo/liba4.so.... any idea ? Cheers dave ...
I have a problem: I need space-efficient lookup of file-system data based of file path prefix. Prefix searching of sorted text, in other words. Use a trie, you say, and I thought the same thing. Trouble is, tries are not space-efficient enough, not without other tricks. I have a fair amount of data: about 450M in a plain-text Unix-for...