logo
down
shadow

how to search for multiple newline characters followed by specific string


how to search for multiple newline characters followed by specific string

By : Rodrick Chimanga
Date : November 29 2020, 09:01 AM
This might help you You'll want to concatenate the newline character when building your search string like this using the CHR() function:
code :


Share : facebook icon twitter icon
String continuation across multiple lines, no newline characters

String continuation across multiple lines, no newline characters


By : Said Laabadli
Date : March 29 2020, 07:55 AM
To fix this issue Am using the RODBC library to bring data into R. I have a long query that I want to pass a variable to, much like this SO user.
code :
query <- gsub(pattern='\\s',replacement="",x=query)
Find specific text in string delimited by newline characters

Find specific text in string delimited by newline characters


By : Rui Menino
Date : March 29 2020, 07:55 AM
should help you out First of all I wouldn't keep the list of files in a single string, but I would use any sort of list or vector. Then if keeping the list in a string is a necessity of yours (for some kind of reason in your application logic) I would separate the string in a vector, then cycle through the elements of the vector checking if the element is exactly the one searched. To split the elements I would do:
code :
std::vector<std::string> split_string(const std::string& str,
                                  const std::string& delimiter)
{
    std::vector<std::string> strings;

    std::string::size_type pos = 0;
    std::string::size_type prev = 0;
    while ((pos = str.find(delimiter, prev)) != std::string::npos)
    {
        strings.push_back(str.substr(prev, pos - prev));
        prev = pos + 1;
    }

    // To get the last substring (or only, if delimiter is not found)
    strings.push_back(str.substr(prev));

    return strings;
}
#include <iostream>
#include <string.h>
#include <vector>
using namespace std;
int main(){
string filename;
string list = "hello.txt\n abc.txt\n check.txt\n"
cin >> filename;

vector<string> fileList = split_string(list, "\n");
bool found = false;
for(int i = 0; i<fileList.size(); i++){
    if(fileList.at(i) == file){
        found = true;
    }
}
if(found){
    cout << file << "exist in list";
} else {
    cout << "file does not exist in list";
}
return 0;
}
Using RegEx to Extract Multiple Lines Using Alternate End of Line Characters (newline, return, end of string)

Using RegEx to Extract Multiple Lines Using Alternate End of Line Characters (newline, return, end of string)


By : FrankieB
Date : March 29 2020, 07:55 AM
will be helpful for those in need I am presenting both the problem and the solution here. I developed this after extensive research in SO, found numerous related examples, but none that matched my exact use case. , I've found this to be a better solution.
(?m)(?:^.*\R?){1,20}
code :
 (?m)            # Inline modifier: Multi-line mode
 (?:             # Cluster
      ^               # BOL
      .*              # optional not newlines
      \R?             # optional line terminator
 ){1,20}         # End Cluster, 1-20 times
 (?m)                          # Inline modifier: Multi-line mode
 (?:                           # Cluster
      ^                             # BOL
      .*                            # optional not newlines
      (?: \r? \n | \r )?            # optional line terminator
 ){1,20}                       # End Cluster, 1-20 times
Build string with OS-specific newline characters (CRLF, LF, CR) to write it into a database table column

Build string with OS-specific newline characters (CRLF, LF, CR) to write it into a database table column


By : Naveen
Date : March 29 2020, 07:55 AM
I hope this helps you . One way to correctly set the new line code in R is to query the operating system. Since both OS X and Linux behave the same way, it's a question of determining whether the operating system is Windows. One way to do this is to interrogate the OS environment variable as follows.
code :
if(substr(Sys.getenv("OS"),1,7) == "Windows") {
    # set Windows newline
  newLine <- "\r\n"
}
else {
    # set non-Windows newline
    newLine <- "\n"
}
paste("my text string on a line",newline,sep="")
Find substrings with multiple newline characters in string using Regex

Find substrings with multiple newline characters in string using Regex


By : Morten Fynbo
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further For Starting with \r\n+CMGL: and ending with \r\n you can use below regular expression :
Related Posts Related Posts :
  • Regular expression returns true on value that does not occur in list of options
  • Regex replace period with dash for URL formatting
  • Using regex in htaccess to 410 status spammy URLs
  • Space separated text to vector in R
  • Capture multiple groups in the same line
  • Use regex with sed to replace spaces by underscore
  • Dynamically-created 'zip' command not excluding directories properly
  • Groovy regexes and wildcard permissions
  • Find exact match string that contains a + character
  • filter dplyr sqlite3 connection using regex
  • Regex to check for repetition
  • How can I tell if my perl process has used the regex $PREMATCH/$MATCH/$POSTMATCH vars (or the short equivilents $`/$'/$&
  • Regex to handle leading spaces (notepad++)
  • Regex pattern to start with first digit and end at last hyphen (if it exists)
  • Apache's SetEnvIf to another variable in .htaccess
  • string -- x y in REGEX
  • Find a word preceding a symbol set
  • Hubot Not Responding to regex
  • DataAnnotations validation adding `@` to RegularExpression
  • yytext contains characters not in match
  • Using ampersand in sed
  • Regex to find all spaces in lines beginning with a specific string
  • nim re, regex modul is not filling match group
  • Get repeating regex groups in scala
  • Extract string matching regex from string
  • Matlab: how to optimize a code to find postfix in a sting
  • Redirect Match with excluding URLs doesnt work
  • How to replace paired tokens with possible newlines inside?
  • How to use regex in grep shell command
  • How to use lookahead in regex to match a word that only appear in certain context?
  • Awk to extract and format a highly variable text file
  • Algorithm complexity of combined regular expressions
  • Using sed to replace string matching regex with wildcards
  • HTML pattern attribute for space and list of words
  • removing strings from a vector
  • How to select number that follow any symbol except whitespace
  • how to make vim syn regex to capture word with trailing space?
  • Include the splitting pattern/token from scala regex.split()
  • How to replace text wrapped by tabs using regular expression and Sublime Text?
  • Python regex split before regular expression
  • slug url won't display url's that don't have hyphens
  • Tcl: Regsub does not substitute a string while parsing HTML snipet
  • REGEX in R: extracting words from a string
  • Unable to define regular expression for re.compile and pass it to Beautifulsoup
  • How to remove extra spaces from a specific string?
  • Splitting a string with a number in the end in R
  • Why doesn't this regex work with grep?
  • Using grep and wc with wildcards on a file
  • Regular expression to avoid duplicate numbers separated by comma
  • Get superscript numbers followed one by other as one string
  • MongoDB regex reverse
  • compare dot(.) on specific position using regex
  • R - raw text to a data.frame
  • Regular expression for parsing name and email from text
  • regex in command line
  • Receiving some inaccurate (or no) grep matches for numbers in garbled text
  • Regular expression to replace part of the expression in a json object
  • R: How to group and aggregate list elements using regex?
  • Sed: Matching words with any permutation of two characters
  • Regular expression matching
  • shadow
    Privacy Policy - Terms - Contact Us © animezone.co