line-numbers

问题 I would want to get the line number of node which is changed/manipulated in XML using powershell. $($node.LineNumber) doesn't seem to be working. For example: $node.ParentNode.InsertBefore($nodeToInsert, $node) //which inserts a node I want to get the line number of this node. 回答1: Lines and line numbers exist in the lexical XML that you supply as input to the XML parser. They don't exist (usually) in the tree of in-memory nodes that is output by the XML parser, and which your program is

问题 I would want to get the line number of node which is changed/manipulated in XML using powershell. $($node.LineNumber) doesn't seem to be working. For example: $node.ParentNode.InsertBefore($nodeToInsert, $node) //which inserts a node I want to get the line number of this node. 回答1: Lines and line numbers exist in the lexical XML that you supply as input to the XML parser. They don't exist (usually) in the tree of in-memory nodes that is output by the XML parser, and which your program is

问题 In order to add 'todo' items into my code, I want to put a message in the compiler output. I would like it to look like this: c:/temp/main.cpp(104): TODO - add code to implement this in order to make use of the Visual Studio build output functionality to navigate to the respective line by double-clicking it. But the __LINE__ macro seems to expand to an int , which disallows writing #pragma message( __FILE__ "("__LINE__"): ..." ) Would there be another way? 回答1: Here is one that allows you to

问题 I am trying to do what should be a simple task: I need to convert a text file to upper case using Hadoop streaming with Python. I want to do it by using the TextInputFormat which passes file position keys and text values to the mappers. The problem is that Hadoop streaming automatically discards the file position keys, which are needed to preserve the ordering of the document. How can I retain the file position information of the input to the mappers? Or is there a better way to convert a

问题 I am trying to do what should be a simple task: I need to convert a text file to upper case using Hadoop streaming with Python. I want to do it by using the TextInputFormat which passes file position keys and text values to the mappers. The problem is that Hadoop streaming automatically discards the file position keys, which are needed to preserve the ordering of the document. How can I retain the file position information of the input to the mappers? Or is there a better way to convert a

问题 From the Rails Guide on debugging, I found that I can customize output to my log files using this simple method: logger.debug "Person attributes hash: #{@person.attributes.inspect}" I decided use this to track how a variable changes and goes through flow control. I would like to be able to see the line number of my code where logger#debug method was called. Something like this: logger.debug "Person attributes hash: #{@person.attributes.inspect} from line #{LINE_NUMBER_VAR}" 回答1: logger.debug

问题 I got some problems with my Code window.videoInfo.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { URL url = new URL(window.videoInput.getText()); URLConnection con = url.openConnection(); LineNumberReader in = new LineNumberReader(new InputStreamReader(con.getInputStream())); in.setLineNumber(1523); in.getLineNumber(); System.out.print(in.readLine()); } catch (IOException ex) { ex.printStackTrace(); } I am trying to display a specific Line from a

问题 I'm trying to add line numbers to a JTextArea and am having some difficulties. The line numbers appear, but they do not scroll properly. I have a linked-list of a custom class that stores a line of data (log message) and a line number associated with it as well as visibility on whether it should be shown in the text area or not. So what I did was create two JTextAreas... one to store the logs, and the other to store the line numbers. The layout works and the line numbers populate correctly

问题 Understanding the difference between throw ex and throw , why is the original StackTrace preserved in this example: static void Main(string[] args) { try { LongFaultyMethod(); } catch (System.Exception ex) { Console.WriteLine(ex.StackTrace); } } static void LongFaultyMethod() { try { int x = 20; SomethingThatThrowsException(x); } catch (Exception) { throw; } } static void SomethingThatThrowsException(int x) { int y = x / (x - x); } But not in this one: static void Main(string[] args) { try {

问题 In C#, I have a RichTextBox, and I want to get the current line of the cursor. Every answer I've found says to use: int currentLine = richTextBox1.GetLineFromCharIndex(richTextBox1.SelectionStart); However, richTextBox1.SelectionStart only updates when you make changes to the text. If you move the cursor with the arrow keys, it does not update (I've verified this by printing SelectionStart as I move around). How do I get the current line of the cursor, in a way that tracks it even if you use