colon

I was recently modifying some code, and found a pre-existing bug on one line within a function: std:;string x = y; This code still compiles and has been working as expected. The string definition works because this file is using namespace std; , so the std:: was unnecessary in the first place. The question is, why is std:; compiling and what, if anything, is it doing? std: its a label, usable as a target for goto . As pointed by @Adam Rosenfield in a comment, it is a legal label name. C++03 §6.1/1: Labels have their own name space and do not interfere with other identifiers. It's a label,

I'm using DOMDocument to parse an XML (SVG). Some nodes have attributes with a colon in it, like : <svg id="svg2" width="1000" height="1000" sodipodi:version="0.32" inkscape:version="0.48.1 " ... > But when I do : $node= DOMDocument->documentElement; foreach($node->childNodes as $key=>$childnode) { foreach($childnode->attributes as $attribute) { echo $attribute->name."\n"; } } the attributes with a : are printed without the first part (namespace) How do I get the namespace for that attribute when iterating through the attributes like this? Answer from OP's comment, nodeName from DOMNode .

I thought using colons in URIs was "illegal". Then I saw that vimeo.com is using URIs like http://www.vimeo.com/tag:sample. What do you feel about the usage of colons in URIs? How do I make my Apache server work with the "colon" syntax because now it's throwing the "Access forbidden!" error when there is a colon in the first segment of the URI? Colons are allowed in the URI path. But you need to be careful when writing relative URI paths with a colon since it is not allowed when used like this: <a href="tag:sample"> In this case tag would be interpreted as the URI’s scheme. Instead you need to

According to the W3C XML Recommendation , start tag-names have the definition: STag ::= '<' Name (S Attribute)* S? '>' ..where Name is: Name ::= NameStartChar (NameChar)* NameStartChar ::= ":" | [A-Z] | ... ..(n.b., states that a colon can appear as the first character) suggesting the following is a valid XML document: <?xml version="1.0" ?><:doc></:doc> ..but any parser I try this in shows the colon as a formatting error. Also, under Appendices B (though now a depreciated part of the document) it explicitly states: Characters ':' and '_' are allowed as name-start characters. ..and: <?xml

What does this code refer too? queryString: function() { //some code } I tested it in the WebConsole (Firefox) but it wouldn't execute, so I'm thinking that it isn't equivalent to function queryString() {} . So what is it exactly? You are missing some code there, but I assume its part of an object declaration like this: var obj = { queryString: function() { //some code } }; obj.queryString(); It assigns a function as a property of an object literal. It would be equivalent to this: var obj = {}; obj.queryString = function() { ... }; obj.queryString(); In general, the object literal syntax looks

As noted in this answer by Sam Roberts and this other answer by gnovice , MATLAB's colon operator ( start:step:stop ) creates a vector of values in a different way that linspace does. In particular, Sam Roberts states: The colon operator adds increments to the starting point, and subtracts decrements from the end point to reach a middle point. In this way, it ensures that the output vector is as symmetric as possible. However, offical documentation about this from The MathWorks has been deleted from their site. If Sam's description is correct, wouldn't the errors in the step sizes be symmetric