quotes

问题 i have vlc (program to reproduce videos) if i type in a shell: /home/vlc "/home/my movies/the movie i want to see.mkv" it opens up an reproduces the movie. however, when I run the following program: #include <unistd.h> int main(void) { execl("/home/vlc", "/home/my movies/the movie i want to see.mkv",NULL); return 0; } vlc opens up but doesn't reproduce anything. How can I solve this? Things I tried: I guessed execl("/home/vlc", "/home/my movies/the movie i want to see.mkv",NULL); was

问题 I've got a PHP script that is reading in some JSON data provided by a client. The JSON data provided had a single 'smart quote' in it. Example: { "title" : "Lorem Ipsum’s Dolar" } In my script I'm using a small function to get the json data: public function getJson($url) { $filePath = $url; $fh = fopen($filePath, 'r') or die(); $temp = fread($fh, filesize($filePath)); $temp = utf8_encode($temp); echo $temp . "<br />"; $json = json_decode($temp); fclose($fh); return $json; } If I utf8 encode

问题 I just faced this question in interview. Is it possible to escape character within single quotes in ruby? The confusion is in following code puts '\\' # Output: \ puts '\n' # Output: \n It seems that backword slash is escaped but the newline character isn't. I am aware of this question but I am not asking about difference between single and double quote. I am asking about whether it's possible to escape characters in single quotes or not? And why only backslash is allowed to escape? 回答1: The

问题 I have a bash scripts which an argument enclosed with double quotes, which creates a shape-file of map within the given boundries, e.g. $ export_map "0 0 100 100" Within the script, there are two select statements: select ENCODING in UTF8 WIN1252 WIN1255 ISO-8859-8; ... select NAV_SELECT in Included Excluded; Naturally, these two statements require the input to enter a number as an input. This can by bypassed by piping the numbers, followed by a newline, to the script. In order to save time,

问题 I want to write a string with quotes in a jsp page which is using jstl tag c:out for its value that means I want to write: c:out value = '"4"' Please suggest asap.. 回答1: Did you try to use escapeXml attribute? <c:out value='"4"' escapeXml="false"></c:out> 回答2: Try this. <c:out value='\\"4\\"'/> 来源： https://stackoverflow.com/questions/20425246/write-string-with-quotes-in-cout-vaue

问题 Note: all the quotation marks in this question are actually part of the code. I'm learning regex, and i'm trying to scrape a site with music on it. I put the source of the site into a text file called 'ytcmusic.txt'. Here's a sample of the html: <li><a href="angelpool%20-%20know.mp3"> angelpool - know.mp3</a></li> <li><a href="angelpool%20-%20sellout.mp3"> angelpool - sellout.mp3</a></li> <li><a href="angelpool%20-%20time.mp3"> angelpool - time.mp3</a></li> <li><a href="bella%20-%20gibsons

问题 I have a function that has an insert inside within loop. See the function below. create temp table temp2 (id serial, other_value uuid); CREATE OR REPLACE function verify_uuid() returns varchar AS $$ declare uu RECORD; BEGIN FOR uu IN select * from temp1 loop execute 'INSERT INTO temp2 values ''' || uu ||''':uuid'; END LOOP; END $$ LANGUAGE 'plpgsql' ; select verify_uuid(); The problem that I am having is the values part. With its present setup, I am getting the error: QUERY: INSERT INTO temp2

问题 Alt A below is a statement from a php-mysql tutorial. It works as it should. I found the id-value rather obfuscated and tested alt B. This also worked! What is the point with the id-value of alt A? MySQL 5.0.51, PHP 5.2.6 // Alt A : $sql = "SELECT * FROM example WHERE id = '".$q."'"; // Alt B : $sql = "SELECT * FROM example WHERE id = $q"; 回答1: This are just two different approaches to building a string from static and variable data. Alternative A uses concatenation, or the joining of string

问题 i am using a 3rd party library to show tooltips, like so: string tooltip = "test"; output.Write("onmouseover='Tip(\"" + test + "\");'"); // work fine :) i'm having problem with situations like the following where i need quotes for formatting: string tooltip = "<span style='color:red;'>test</span>"; output.Write("onmouseover='Tip(\"" + test + "\");'"); // no working :( how can i escape the quotes needed for the html in the tooltip so it doesn't break the function call? 回答1: Replace any

问题 Scripting is made for CLI and, in the Microsoft world, script arguments referring to files may often have spaces requiring them to be quoted. This turns out to be problematic for me. Consider this script: #testarg.ps1 for($i=0; $i -lt $args.length; $i++) { write-host "Arg$i = $($args[$i])" } If I run it inside the PowerShell interactive environment, like this: PS C:\script> .\testarg.ps1 "first arg" "second arg" I get, as expected, Arg0 = first arg Arg1 = second arg But the ordinary use of a