quotes

问题 I am trying to write a YAML dictionary for internationalization of a Rails project. I am a little confused though, as in some files I see strings in double quotes and in some without. A few points to consider: example 1 - all strings use double quotes; example 2 - no strings (except the last two) use quotes; the YAML cookbook says: Enclosing strings in double quotes allows you to use escapings to represent ASCII and Unicode characters. Does this mean I need to use double quotes only when I

问题 I'm curious about this code: cout << 'test'; // Note the single quotes. gives me an output of 1952805748 . My question: Is the output an address in memory or something? 回答1: It's a multi-character literal. 1952805748 is 0x74657374 , which decomposes as 0x74 -> 't' 0x65 -> 'e' 0x73 -> 's' 0x74 -> 't' Edit: C++ standard, §2.14.3/1 - Character literals (...) An ordinary character literal that contains more than one c-char is a multicharacter literal . A multicharacter literal has type int and

问题 I'm curious about this code: cout << 'test'; // Note the single quotes. gives me an output of 1952805748 . My question: Is the output an address in memory or something? 回答1: It's a multi-character literal. 1952805748 is 0x74657374 , which decomposes as 0x74 -> 't' 0x65 -> 'e' 0x73 -> 's' 0x74 -> 't' Edit: C++ standard, §2.14.3/1 - Character literals (...) An ordinary character literal that contains more than one c-char is a multicharacter literal . A multicharacter literal has type int and

问题 I'm creating a CGI form to update a Sybase stored procedure. qq {execute procedure test(123,45,date,'$note');}; the $note variable is information obtained from a textbox that contains trouble ticket log information. As such people who enter such information can, and most likely will use special characters such as '|"{} etc. Im curious to know if there is a way to get this information into the database via the variable $note . Most of my research has produced DBI->quote() functions, but they

问题 This is partially related to reading in files in so-called European way, more in How to read in numbers with a comma as decimal separator?. I have data with a row such as "Invoice","1324","Name","John","Age","10","Height","143,5","Products","1;2;3;4","ProductIDs","01;02;03;04" where a comma acts as a separator of field values and inside the field values, delimited with double-quotes, comma acts as a decimal separator. Inside field values, the semicolon also acts as other separator but we can

问题 I have the following cycle in a jspx: <c:forEach var="var" items="${dataFile.list.rows}"> <li> <div> <a href="#" onClick="myFunct('${var.url}','escape(${var.title}),'escape(${var.descr})');"> <img width="108" height="66" alt="" src="${var.img}" /> </a> </div> </li> </c:forEach> Where function myFunct does some stuff on its own. My problems arise when either ${var.title} or ${var.descr} contain quotes or double quotes. I can't know in advance whether there's going to be some or which. I tried

问题 I'm trying to find an employee in Active Directory using the following c# code: "Select userPrincipalName, ADsPath, Department, Mail, HomeMDB, cn, ssn FROM 'LDAP://" + DomainName + "' WHERE objectCategory = 'person' and sAMAccountName = '" + UserName.Replace("'", "''") + "'"; When I run this for an employee with a single quote in the last name (such as "O'Connor") I get the following error: AdsDsoObject' failed with no error message available, result code: DB_E_NOTABLE(0x80040E37). I also

问题 I need to check type to display correct message like: ${row.type} <c:if test="${row.stype ==\"Note\" }">Important Note</c:if> But the problem that escaping produce strange error: Unable to analyze EL expression due to lexical analysis error How it can be fixed? Thanks. 回答1: Double quotes must not be escaped in EL. Use single quotes if the tag attribute is in double quotes, and vice-versa: <c:if test="${row.stype == 'Note'}">Important Note</c:if> or <c:if test='${row.stype == "Note"}'

问题 What is the usual way of tokenizing quoted strings that can contain an escape character? Here are some examples: 1) "this is good" 2) "this is\"good\"" 3) "this \is good" 4) "this is bad\" 5) "this is \\"bad" 6) "this is bad 7) this is bad" 8) this is bad Below is a sample parser that doesn't work quite right; it has expected results for all except examples 4 and 5, which parse successfully. options { LOOKAHEAD = 3; CHOICE_AMBIGUITY_CHECK = 2; OTHER_AMBIGUITY_CHECK = 1; STATIC = false; DEBUG

问题 I have a list of quotes. I want to have a label that changes every 24H to a new Quote. How can I do this? Like how can I manage a day? I know I could just use an API but I want to use my own quotes and I am not able to create an API on my own yet. 回答1: Supposing you have an array of quotes: let numberOfQuotes = 3 let quotes = ["quote a", "quote b", "quote c"] override func viewDidLoad() { _ = Timer.scheduledTimer(timeInterval: TimeInterval(60), target: self, selector: #selector(self