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Writing a compiler in its own language

... assembler. Eventually, you will come to the place where you have to parse strings, specifically escape sequences. You will write code to convert \n to the character with the decimal code 10 (and \r to 13, etc). After that compiler is ready, you will start to reimplement it in C. This process is ca...
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No visible cause for “Unexpected token ILLEGAL”

...rs. It seems the tool uses that character to control word-wrapping on long strings. UPDATE 2013-01-07 After the latest jsfiddle update, it's now showing the character as a red dot like codepen does. Apparently, it's also not inserting U+200B characters on its own anymore, so this problem should be ...
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Why does HTML5 form-validation allow emails without a dot?

...ould have a ^, denoting it should start matching from the beginning of the string and also accept upper case: ^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+$ – Kohjah Breese Dec 6 '18 at 14:18 ...
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Set custom HTML5 required field validation message

...for example when it's not a valid email address) You can either assign a string or a function to each of the three properties. If you assign a function, it can accept a reference to the input element (DOM node) and it must return a string which is then displayed as the error message. Compatibili...
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C# Sanitize File Name

... To clean up a file name you could do this private static string MakeValidFileName( string name ) { string invalidChars = System.Text.RegularExpressions.Regex.Escape( new string( System.IO.Path.GetInvalidFileNameChars() ) ); string invalidRegStr = string.Format( @"([{0}]*\.+$)...
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C++使用OLE/COM高速读写EXCEL的源码 - C/C++ - 清泛网 - 专注C/C++及内核技术

...l(BOOL bShow); ///检查一个CELL是否是字符串 //BOOL IsCellString(long iRow, long iColumn); ///检查一个CELL是否是数值 //BOOL IsCellInt(long iRow, long iColumn); void SetCell(long irow, long icolumn,CString new_string); ///得到一个CELL的String CString GetC...
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Build an ASCII chart of the most commonly used words in a given text [closed]

...in its hardware control and measurement niche, but really pretty awful for string manipulation. – Joe Z Jul 4 '10 at 6:23 ...
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static constructors in C++? I need to initialize private static objects

... a class with a private static data member (a vector that contains all the characters a-z). In java or C#, I can just make a "static constructor" that will run before I make any instances of the class, and sets up the static data members of the class. It only gets run once (as the variables are read...
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How to construct a std::string from a std::vector?

Short of (the obvious) building a C style string first then using that to create a std::string, is there a quicker/alternative/"better" way to initialize a string from a vector of chars? ...
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Should I use encodeURI or encodeURIComponent for encoding URLs?

...cial meaning, so you use it for components of URIs such as var world = "A string with symbols & characters that have special meaning?"; var uri = 'http://example.com/foo?hello=' + encodeURIComponent(world); share ...