delimiter

问题 I've got a string that I'm supposed to use StringTokenizer on for a course. I've got my plan on how to implement the project, but I cannot find any reference as to how I will make the delimiter each character. Basically, a String such as "Hippo Campus is a party place" I need to divide into tokens for each character and then compare them to a set of values and swap out a particular one with another. I know how to do everything else, but what the delimiter would be for separating each

问题 I have mydf data frame below. I want to split any cell that contains comma separated data and put it into rows. I am looking for a data frame similar to y below. How could i do it efficiently in few steps? Currently i am using cSplit function on one column at a time. I tried cSplit(mydf, c("name","new"), ",", direction = "long") , but that didn`t work library(splitstackshape) mydf=data.frame(name = c("AB,BW","x,y,z"), AB = c('A','B'), new=c("1,2,3","4,5,6,7")) mydf x=cSplit(mydf, c("name"), "

问题 I have a regex which will split my string into arrays. Everyything works fine except that I would like to keep a part of the delimiter. Here is my regex: (&#?[a-zA-Z0-9]+;)[\s] in Javascript, I am doing: var test = paragraph.split(/(&#?[a-zA-Z0-9]+;)[\s]/g); My paragraph is as followed: Current addresses: † Biopharmaceutical Research and Development<br /> ‡ Clovis Oncology<br /> § Pisces Molecular <br /> || School of Biological Sciences ¶ Department of Chemistry<br /> The problem is that I am

问题 I'm trying to use Java's Scanner class to scan in double and int values delimited by commas. The following Scanner input = new Scanner(System.in).useDelimiter("\\D"); can only scan int values separated by , . e.g. input = 1000,2,3 How do I scan in double and int values separated by , e.g. input = 1000.00,3.25,5 or 100.00,2,3.5 ? I tried the following but they don't seem to work: Scanner input = new Scanner(System.in).useDelimiter(","); Scanner input = new Scanner(System.in).useDelimiter("\\,"

问题 So someone gave me a spreadsheet of orders, the unique value of each order is the PO, the person that gave me the spreadsheet is lazy and decided for orders with multiple PO's but the same information they'd just separate them by a "/". So for instance my table looks like this PO Vendor State 123456/234567 Bob KY 345678 Joe GA 123432/123456 Sue CA 234234 Mike CA What I hoped to do as separate the PO using the "/" symbol as a delimiter so it looks like this. PO Vendor State 123456 Bob KY

问题 So someone gave me a spreadsheet of orders, the unique value of each order is the PO, the person that gave me the spreadsheet is lazy and decided for orders with multiple PO's but the same information they'd just separate them by a "/". So for instance my table looks like this PO Vendor State 123456/234567 Bob KY 345678 Joe GA 123432/123456 Sue CA 234234 Mike CA What I hoped to do as separate the PO using the "/" symbol as a delimiter so it looks like this. PO Vendor State 123456 Bob KY

问题 I'd like to escape ":" and/or "=" as the name in a configuration file. Does anyone know how to achieve this? I try backslash "\", it does not work. 回答1: If you're using Python 3, you don't need to. Look at the Python docs section on Customizing Parser Behavior. By default, configparser uses ":" and "=" as delimiters, but you can specify different delimiters when you create the configparser object: import configparser parser = configparser.ConfigParser(delimiters=('?', '*')) In this example,

问题 Assuming I have a file BookDB.txt which stores data in the following format : Harry Potter - The Half Blood Prince:J.K Rowling:40.30:10:50 The little Red Riding Hood:Dan Lin:40.80:20:10 Harry Potter - The Phoniex:J.K Rowling:50.00:30:20 Harry Potter - The Deathly Hollow:Dan Lin:55.00:33:790 Little Prince:The Prince:15.00:188:9 Lord of The Ring:Johnny Dept:56.80:100:38 Three Little Pig:Andrew Lim:89.10:290:189 All About Linux:Ubuntu Team:76.00:44:144 Catch Me If You Can:Mary Ann:23.60:6:2

问题 import java.io.*; import java.util.*; class usingDelimiters { public static void main(String args[]) { Scanner dis=new Scanner(System.in); int a,b,c; a=dis.nextInt(); b=dis.nextInt(); c=dis.nextInt(); System.out.println("a="+a); System.out.println("b="+b); System.out.println("c="+c); } } This program is working fine when my input is 1 2 3 (separated by space) But, how to modify my program when my input is 1,2,3 (separated by commas) 回答1: you can use the nextLine method to read a String and

问题 I've had a look for answers, but have only found things referring to C or C#. I realise that much of R is written in C but my knowledge of it is non-existent. I am also relatively new to R. I am using the current Rstudio. This is similar to what I want, I think. Read the data efficiently with multiple separating lines in R I have a csv file but one variable is a string with values separated by _ and - And I would like to know if there is a package or extra code which does the following on the