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How to select/read/copy values after specific character in a string


How to select/read/copy values after specific character in a string

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How to select/read/copy values after specific character in a string
Tag : c , By : Tink
Date : November 29 2020, 01:01 AM


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I am trying to read a file and copy every character read into a character array and print it in JAVA


Tag : java , By : Chris Woods
Date : March 29 2020, 07:55 AM
like below fixes the issue I am trying to read a file and copy every character as it is read into a character array and then print it. The output is just displaying the last character read from the file. , int ind = 0; should be before the loop.
int ind = 0;
while((s = f.read()) != -1 )
{    
    pt[ind] = (char) s ;
    ind ++ ;

}

extracting values starting at a specific character string and up until a certain character string


Tag : .net , By : jamerson
Date : March 29 2020, 07:55 AM
To fix this issue to the fact that .NET regex supports repeated groups, you can use
\.\[MY_ID]\s*IN\s*\(((?:,?(\d+))+)
var s = "WHERE ([EXTENT1].[MY_ID] IN (151,152,214,218,931,932,933,1067,1412,1414,13807,14347,14349,14446)) AND ([EXTENT1].[MY_OTHER_ID] IN (14264, 14335, 14385, 14398, 14603, 14650, 15164, 15374)) AND ([EXTENT2].[PERSON_ID] IN (28,933,14446,179,152,14349,14347,933,130,218,933,1067,931,151,214,152,933,145,931,145,5809,14347,14349,14349,1414,142,1412,179,152,14347,152,90,13807,932,931))\n    )  AS [FILTER1]\n    GROUP BY [K1], [K2]\n)  AS [GROUPBY1]"; 
var pattern = @"\.\[MY_ID]\s*IN\s*\(((?:,?(\d+))+)";
var matches = Regex.Matches(s, pattern);
var res1 = matches
                .Cast<Match>().Select(p => p.Groups[2].Captures) // Get a list of ind. numbers
                .ToList();
var res2 = matches
                .Cast<Match>().Select(p => p.Groups[1].Value) // Get the whole substring
                .ToList();
 foreach (var coll in res1)
    foreach (var v in coll)
        Console.WriteLine(v);
 Console.WriteLine("Ex. 2");
    foreach (var v2 in res2)
        Console.WriteLine(v2);

SQL select first character following each occurrence of a specific character in string


Tag : sql-server , By : user113409
Date : March 29 2020, 07:55 AM
will help you If you want to use SQL for this, create a function with the following logic
DECLARE @value VARCHAR(255)
SET @value = 'Hello.Bye.Today.Yesterday'

DECLARE @result VARCHAR(255)
DECLARE @curChar CHAR(1)

DECLARE @start INT, @end INT
SET @start = 2
SET @end = LEN(@value)

SET @result = SUBSTRING(@value, 1,1)

WHILE @start < @end
BEGIN
    SET @curChar = SUBSTRING(@value, @start, 1)
    IF @curChar = '.'
    BEGIN
        SET @result = @result + SUBSTRING(@value, @start + 1, 1)
        SET @start = @start + 1
    END
    SET @start = @start + 1
END
HBTY

How to read a file character by character until a specific string is complete?


Tag : java , By : user152319
Date : March 29 2020, 07:55 AM
seems to work fine Here's a sample complete program that I have that illustrates how you can potentially do a match. NOTE: Using an array to store associations is a BAD IDEA if you have lookup performance. However, if you have to use an array, you simply need to iterate over the array, looking for the first lookup association that matches your search criteria.
Source
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class OpCodeLookupService {

Pair[] opCodes;

public static final class Pair {
    String first;
    String second;

    public Pair(String first, String second) {
        this.first = first;
        this.second = second;
    }
}

public OpCodeLookupService(Pair[] opCodes) {
    this.opCodes = opCodes;
}

public Pair pairLookup(String toLookup) {
    for(Pair p : this.opCodes) {
        if (p.first.equals(toLookup)) {
            return p;
        }
    }
    return null;
}

public String lookup(String filePath) {
    try {
        // In the comments, you mentioned you cannot use BufferedReader to ingest the file. In this example, I'm showing another way via Scanner which is a very easy to use class for ingesting input streams.
        Scanner s = new Scanner(new FileInputStream(filePath));
        StringBuilder stringToExamine = new StringBuilder();
        while (s.hasNext()) {
            String nextString = s.next();
            for (char c : nextString.toCharArray()) {
                stringToExamine.append(c);
                Pair pair = pairLookup(stringToExamine.toString());
                if (pair != null) {
                    return pair.second;
                }
            }
        }
        return null; //Indicates string is not found.
    } catch (FileNotFoundException e) {
        e.printStackTrace();
        throw new RuntimeException("Cannot load file");
    }
}


public static void main(String...args) {
    final Pair p = new Pair("thisisopcode", "12345");
    Pair[] pairs = new Pair[1];
    pairs[0] = p;
    OpCodeLookupService opService = new OpCodeLookupService(pairs);
    System.out.println(opService.lookup("/Users/liuben10/foo.txt"));
  }
}

JavaScript - Select string between specific word and next specific character on custom condition


Tag : javascript , By : Jay Crockett
Date : March 29 2020, 07:55 AM
around this issue I have a very long CSS code in a variable and I want to find the last matching condition in that. My code is: , Try this :)
var str = 'body { background: #fff; } .customClass{ font-size: 12px; } .anotherClass { color: #292929 } body { color : #fff } body{cool}';
var regex = /body\s+\{([^}]+)/g;
var temp;
var resultArray = [];
while ((temp = regex.exec(str)) != null)  
{  
resultArray.push(temp[1]);
} 
console.log(resultArray);
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