curly-braces

问题 I'm programming in java and I happened to find myself with this: if(nodo == null) return null; else if(nodo.izquierda!=null && nodo.derecha==null) return nodo.izquierda; else if(nodo.izquierda==null && nodo.derecha!=null) return nodo.derecha; else return null; // si ambos hijos son nulos o no nulos My question is: Is it the same to write that as: if(nodo == null) return null; else { if(nodo.izquierda!=null && nodo.derecha==null) return nodo.izquierda; else { if(nodo.izquierda==null && nodo

问题 I just found this: sed '/label/{n;n;s/{}/{some comment}/;}' The intended effect is to seek label , proceed 2 lines down ( n;n; ) then substitute in ( s ) some comment . This is an amazing capability I never knew sed had. Would someone be kind enough to specify the name of this curly brace notation, and the name of the class of operators inside the braces? 回答1: Curly brackets allow to group several commands so that they are executed for the same address range (reference). The thing here is

问题 I just found this: sed '/label/{n;n;s/{}/{some comment}/;}' The intended effect is to seek label , proceed 2 lines down ( n;n; ) then substitute in ( s ) some comment . This is an amazing capability I never knew sed had. Would someone be kind enough to specify the name of this curly brace notation, and the name of the class of operators inside the braces? 回答1: Curly brackets allow to group several commands so that they are executed for the same address range (reference). The thing here is

问题 IE, this: if (x > 5) return test; Would always become: if (x > 5) { return test; } I'm not talking about the brace style (Allman, GNU, Whiteman, etc) I just mean having the braces there at all. There is something to prevent/enable single-line control statements like: if (x > 5) return test; which is AllowShortBlocksOnASingleLine , but that's not what I'm looking for here. If it works on clang 7 that's ideal, but if not let me know. 回答1: It's understandable you would want to stick with clang

问题 IE, this: if (x > 5) return test; Would always become: if (x > 5) { return test; } I'm not talking about the brace style (Allman, GNU, Whiteman, etc) I just mean having the braces there at all. There is something to prevent/enable single-line control statements like: if (x > 5) return test; which is AllowShortBlocksOnASingleLine , but that's not what I'm looking for here. If it works on clang 7 that's ideal, but if not let me know. 回答1: It's understandable you would want to stick with clang

问题 When using the Format Document command I'd like to change how the code formats. I'm completely new to VSCode and I'm still having trouble navigating the settings, so easy to understand replies would be very helpful. Currently the code is formatting like this: void start () { //Do stuff here } I want it to look like: void start () { //Do stuff here } 回答1: I have found this simple solution for VScode ! Just create a file called omnisharp.json at the root of your project and paste the following

问题 When using the Format Document command I'd like to change how the code formats. I'm completely new to VSCode and I'm still having trouble navigating the settings, so easy to understand replies would be very helpful. Currently the code is formatting like this: void start () { //Do stuff here } I want it to look like: void start () { //Do stuff here } 回答1: I have found this simple solution for VScode ! Just create a file called omnisharp.json at the root of your project and paste the following

问题 I just downloaded complete source code of PHP from php.net (PHP 5.4.0 [tar.bz2]). They are often using three curly brackets together as given below (The following code snippet extracted form ext/ctype/ctype.c.) /* {{{ proto bool ctype_digit(mixed c) Checks for numeric character(s) */ static PHP_FUNCTION(ctype_digit) { CTYPE(isdigit); } /* }}} */ Does anyone have the idea why they are using these three curly brackets together? 回答1: They are vim fold markers, they make it easy to collapse and

问题 I have some text string in the following pattern. x = "sdfwervd \calculus{fff}{\trt{sdfsdf} & \trt{sdfsdf} & \trt{sdfsdf} \\{} sdfsdf & sdfsdf & sefgse3 } aserdd wersdf sewtgdf" I want to use regex to capture the text "fff" in the string \calculus{fff} and replace it with something else. Further I want to capture the string between the first { after \calculus{.+} and it's corresponding closing curly brace } . How to do this with regex in R ? The following captures everything till last curly

问题 In the following example,I've illustrated this using two structures test1 and test2 .The first has two elements-an integer array sized two,and a float element.The second structure has 3 elements,2 integers and one float. I initialize two structure variables s1 and s2 for test1 as: s1={{23,52},2.5},s2={21,19,3.6}; Both work fine even though for s2 I have taken out the braces that enclose the array elements.It works fine without warning and output is correct.But when I initialize 2 variables