newline

问题 I would like to count the number of shift+enters in a text file using PHP. Please help me with this. Thanks 回答1: Assuming you just mean "\r\n" (carriage-return + line feed) by this, the function substr_count in conjunction with file_get_contents should do the trick. For example: $count = substr_count(file_get_contents($filename), "\r\n"); 回答2: You can perform this task by key-events. I think php don't have any key event, so you can use any scripting language like java-script that have key

问题 When I search using keywords of 'fgets' and 'newline', there are many posts regarding how to remove the trailing newline character (and such removal appears to be a burden). Yet it seems there is few explaination on how that newline is necessary for fgets to include. Also in C++, the 'std::getline' and 'std::istream:getline' methods will not keep the newline character. So is there a reason for it? 回答1: Here is satisfying (IMHO) explanation: http://www.cplusplus.com/reference/cstdio/fgets/

问题 After doing git difftool --dir-diff , my workspace files are modified for some reason. I've been guessing that it's converting the line endings between crlf and lf etc... However, doing "git config core.autocrlf false " or " git config --global core.autocrlf false " don't make any difference. I have tried using both windiff and beyond compare as the custom diff tool but it doesn't help. This is bad since every time I view some changes in my .csproj file, the project is reloaded since it said

问题 Another noob regex problem/question. I'm probably doing something silly so I thought I'd exploit the general ingenuity of the SO regulars ;) Trying to match newlines but only if they occur within either double quotes or single quotes. I also want to catch strings that are between quotes but contain no newlines. Okay so there's what i got, with output. Below that, will be the output I would like to get. Any help would be greatly appreciated! :) I use Regex Coach to help me create my patterns,

问题 I want to create a text file, than load it up without any newlines or spaces (This is for a simple RPG). So I want to test for all 3 major OS line separators, and than the current OS'(s?) one. I know I can get the current one using System.getProperty("line.separator"), but how can I get Linux, Mac, and Windows line separators and turn them into a string for Java? Edit: I need a single character representation of these, because for some reason "\n" doesn't work (Yes I'm on windows). 回答1: They

问题 I have a Linux system and Windows system send text to each other and each one of them update a text file with the received text, now i have a problem when the text contain LF/CR char, i need to unify the newline char sent by both of them, i tried to use only \n (replacing \r by empty string before sending the string) but it doesn't work , is there a known solution for this issue ? 回答1: Don't unifying, just accommodate for it in every environment, like Git does. When sending from Windows to

问题 i have a file which contains several instances of \n . i would like to replace them with actual newlines, but sed doesn't recognize the \n . i tried sed -r -e 's/\n/\n/' sed -r -e 's/\\n/\n/' sed -r -e 's/[\n]/\n/' and many other ways of escaping it. is sed able to recognize a literal \n ? if so, how? is there another program that can read the file interpreting the \n 's as real newlines? 回答1: Can you please try this sed -i 's/\\n/\n/g' input_filename 回答2: $ echo "\n" | sed -e 's/[\\][n]

问题 For a user input I do this: $var=str_replace(array('\r','\n'),'',$var); Works well on Windows, removing any new lines. However, on the Mac (+Firefox) it somehow replaces the new lines with a \ character. Any clues as to why that happens? 回答1: I'm surprised it works on Windows. Usually, for PHP to interpret control characters, they need to be in double-quoted strings, eg array("\r", "\n") 回答2: set the value auto_detect_line_endings to on in php.ini file or ini_set("auto_detect_line_endings",

问题 I have a multidimensional array $BlockData[] which has 13 dimensions in it and 'n' number of array elements. I need to implode this array back to a single long string where the elements are separated by "\n" line feeds and the dimensions are separated by "\t" tabs. I've tried using the array_map() function with no success and need help accomplishing this. Please help! 回答1: Here's an option that I suggested yesterday in chat: $callback = function($value) { return implode("\t", $value); }; echo

问题 i'm working on a file i have scraped from a website, the file is saved as a semicolon csv with quoted fields. The last field contains embedded newlines. I've been working on a script to proces the file. I'm fairly new to perl and at first is was trying it with a normal perl script but quickly found out that wasn't working. I did my research and found out I should use the Text::CSV module instead. I came across these sites which explained how to use the module: http://perlmaven.com/how-to-read