newline

问题 I have a computationally expensive task in perl, and would like to inform the user that computation is ongoing by printing out a period after each portion of the computation is completed. Unfortunately, until I print a "\n", none of my periods are printed. How can I address this? 回答1: You need to set autoflush for STDOUT. Example: use IO::Handle; STDOUT->autoflush(1); foreach (1..20) { print '.'; sleep(1); } 回答2: set $|=1 before you start printing. Eg. perl -e ' $|=1; foreach (1..10) { print

问题 This is a common issue I have and my solution is a bit brash. So I'm looking for a quick fix and explanation of the problem. The problem is that when I decide to save a spreadsheet in excel (mac 2011) as a tab delimited file it seems to do it perfectly fine. Until I try to parse the file line by line using Perl. For some reason it slurps the whole document in one line. My brutish solution is to open the file in a web browser and copy and paste the information into the tab delimited file in

问题 I would like to use eol=LF in my .gitattributes file, but I would like it to apply only to the files Git automatically determines to be text files. The best I could find is to define specific file extensions / globs as text or binary. This is not ideal as the list could be huge. I've tried * text=auto eol=LF , but the eol=LF part appears to override the auto part. Can I force LF line endings without requiring specific git config settings, and without losing the automatic text/binary inference

问题 I have a div with the attribute contentEditable set. This allows me to have a free-form editable textarea, without the need for any form input fields: http://jsfiddle.net/M8wx9/8/ However, when I create a couple of new lines and click save button, I grab the content with the .text() method which goes on to remove the line feeds I just entered. I need to maintain the newline characters if at all possible and store the content as plain text in the database. I could store the HTML directly to

问题 Lets say i have a text: "this\n is >\n<" and i want to replace the newline with none which will result in: "this\n is ><" How to achieve this ? i tried using the following: echo "this\n is >\n<" | sed -e 's/>\n<//g' But it didn't work out. Any help would be appreciated. 回答1: Escape \ with \ : echo "this\n is >\n<" | sed -e 's/>\\n</></g' Output: this\n is >< 来源： https://stackoverflow.com/questions/38422453/how-to-replace-just-one-newline-between-and-in-unix

问题 Reference Why is the Console Closing after I've included cin.get()? I was utilizing std::cin.get() #include<iostream> char decision = ' '; bool wrong = true; while (wrong) { std::cout << "\n(I)nteractive or (B)atch Session?: "; if(std::cin) { decision = std::cin.get(); if(std::cin.eof()) throw CustomException("Error occurred while reading input\n"); } else { throw CustomException("Error occurred while reading input\n"); } decision = std::tolower(decision); if (decision != 'i' && decision !=

问题 I have a system set up for users to submit their articles into my database. Since it will just be HTML, I don't want to expect them to know to type <br /> every time there's a newline, so I am using the PHP function nl2br() on the input. I'm also providing an article modification tool, which will bring their articles back into the form (this is a different page, however) and allow them to edit it. In doing this, the <br /> elements were appearing also (with newlines still). To remedy the

问题 I was trying some stuff in Swing (Java), but getting very strange results. I am getting a String from JTextArea.getText() method and adding "\n" to it. This resultant string I am writing into a file, using BufferedWriter which is chaining through FileOutputStream to a file. But the new line character "\n" is not creating new line in the .txt file. How can I fix this issue? My Code is here: package quizCardGame; import java.awt.*; import java.awt.event.*; import java.io.*; import java.util

问题 I am writing a application in c#.For the localization purpose, I am moving all of my strings to resources. Some example of strings: "First sentence.\n Second sentence." "wait..." In first string there is newline character "\n" .Should I move the newline character to resources too. In second string, should I move the three dots to resources or should I split string in to two parts like "wait" + "..." and move only "wait" to resources. I am using Google-translate to translate strings to other

问题 Executing the following SQL: drop function f go in MS Sql Server Management Studio give me this parse error: Msg 102, Level 15, State 1, Line 1 Incorrect syntax near 'go'. Why? If I open a new tab and copy/paste the SQL into it, it also fails. But If I open a new tab and retype the SQL entirely, it works fine. 回答1: SQL Server Management Studio can't handle some non printable characters. Check the newline characters, probably you have Linux (LF) or Mac style (CR) instead of Windows style (CR