escaping

问题 I am trying to set up an alias in my .bashrc file like the below: clear && printf '\033[3J' But the following does not work alias clall= "clear && printf \'\033[3J\'" alias clall= "clear \&\& printf \'\\033\[3J\'" 回答1: The general rule about aliases is that if you have a question about how to use them (or whether they're capable enough for your purpose), you should be using a function instead. A function gives you all the capability (considerably more, for that matter), and doesn't require

问题 I'm trying to use the following snippet: $('#thirdPartyCheckoutButtons').prepend('<a href="https://www.resellerratings.com" onclick="window.open("https://seals.resellerratings.com/landing.php?seller=myID","name","height=760,width=780,scrollbars=1"); return false;"><img style="border:none;" src="//seals.resellerratings.com/seal.php?seller=myID" oncontextmenu="alert("Copying Prohibited by Law - ResellerRatings seal is a Trademark of All Enthusiast, Inc."); return false;" /></a><img src="https:/

问题 I understand these are escape characters but how do I read from a XML document and ignore them? I'm using XmlDocument , by the way. 回答1: The string you read from the file does not literally contain "\r\n" . Those are escape sequences. '\r' and '\n' represent a carriage-return and new-line character, respectively, which form together a line break. If you're looking with the VS debugger at the string, however, you may see the escape sequences instead of actual line breaks. From MSDN: Note At

问题 I want to print escaped or raw version of a string. For example: given this string: "a, b, c, d" I want to get "a,\nb,\nc,\nd". Is it possible? 回答1: string = 'a, b, c, d' > p string.inspect #=> "\"a,\\nb,\\nc,\\nd\"" # "*** expected output ***" > p string.inspect.delete('\"') #=> "a,\\nb,\\nc,\\nd" Demo 回答2: s = "a, b, c, d" s.dump # => "\"a,\\nb,\\nc,\\nd\"" s.dump[1...-1] # => "a,\\nb,\\nc,\\nd" 来源： https://stackoverflow.com/questions/34148616/how-to-print-raw-string-in-ruby

问题 I'm using servicestack to build a web api serving some old data over the web. Unfortunately the data schema does not lend itself particularly well to the standard use of ServiceStack.Ormlite. For example there are no primary keys and on one table the (non-unique) key actually can contain any characters. In my sample database there are '/' characters inside the key. Therefore when requesting a resource from the web api using this route "/api/objects/{objectCode}" if the required objectCode is

问题 I'm trying to use escape characters to print a double quote. However, my program is throwing an error so I'm trying to debug it. When I add a watch to a string using an escape character it shows that the backslash is being included in the string literal. How do I use escape characters so that the \ doesn't become part of the literal? 回答1: You are confused by the debugger's behavior. VS debugger will show the value with the escape character (Ex: 4\" ) in the Watch section and on hovering but

问题 in Javascript, I am having some trouble replacing '/' with '/' in a string. I tried this string.replaceAll("\\/","/")); What's wrong with this ? I am escaping the escape character i.e. the backslash. Please advise. Thanks Edit: I have an escaped URL such as http://www.gogobeans.com. I need to change this to http://www.gogobeans.com 回答1: I've never heard of replaceAll method in pure javascript, try replace with a regex: string.replace(/\\\//g, "/"); I've escaped the escape character with \\

问题 I am executing bash command using python's subprocess.call(). I am taking user input as an argument to my command like below. my_command = 'command -option1 {0} -option2 {1}'.format(arg1, arg2) Here arg1 and arg2 are user inputs but the problem is user input can have quotes and spaces so I want to surround arguments by double quotes like this. my_command = 'command -option1 "{0}" -option2 "{1}"'.format(arg1, arg2) Since I have no control over user input, input can contains double quotes or

问题 In the code HTML+Script below, an event handler is attached after page load using setAttribute(...) . The event hander is passed an argument which is read dynamically too. the event hander is attached successfully ( verified by a getAttribute(...) However, the handler does not fire. What is wrong with the snippet below? <HTML> <BODY onload="loader();"> <table> <tbody> <tr> <td id="myId">FirstColumn</td> <td id="otherId">SecondColumn</td> <td id="lastId">Balderdash</td> </tr> </tbody> </table>

问题 I have a file on my server that i want to access. The filename is ken\'s book.doc But in my db, it was stored as ken's book.doc (I have fixed the backslash issue, but still have problems accessing the previously uploaded files on server. I used addslashes to add the back slash but it displays it as: ken/'s book.doc (that is a forward slash instead of a backslash. I have used: str_replace("'", "\'", $filename); yet it displays as a forward slash. How can i fix this? Thanks EDIT Extra