text-files

I found some good results on reading e.g.: Read txt with iterators and preallocation , or read into containers . So I wondered how would I write most elegant a std::string into a file? Edit: When reading I can preallocate space for the string via seek and tellg, since I know the size of the string, how could I tell the filesystem how much I want to write? Here's a tiny example on how to output a std::string , but you should really read up on fstream #include <iostream> #include <fstream> #include <string> int main(int argc, char *argv[]) { std::string s("writemeout"); std::ofstream outfile(

This is my first time doing these things. Basically I am creating a batch file html maker for church songs. This is what I am stuck with: echo <br> %var17% >>Runfiles\temporary2.txt Basically var 17 is a line of lyric and I want to add a line break in front of it. I have seperated the template maker into three parts: first half lyrics second half Here is the code: @echo off copy "I:\Build\Files\*.txt" ren *.txt temp.txt setlocal ENABLEDELAYEDEXPANSION set vidx=0 for /F "tokens=*" %%A in (temp.txt) do ( SET /A vidx=!vidx! + 1 set var!vidx!=%%A ) set var echo <br> %var17% >>Runfiles\temporary2

I´m having trouble exploding contents of a .txt file (structure below): 01Name 1 02whatever contents 03whatever contents ------------------- 01Name 2 02whatever contents 03whatever contents As you can see, the "delimiter" is "-------------------". Now, the question is: how to explode this file into an array, so I can search for a specific name and display that block´s contents? I´ve tried to explode like this: header("Content-type:text/plain"); $file = fopen("cc/cc.txt", "r"); while (!feof($file)) { $lot = fgets($file); $chunk = explode("-------------------",$lot); print_r($chunk); } fclose(

I want to search and match a particular word in a text file. with open('wordlist.txt', 'r') as searchfile: for line in searchfile: if word in line: print line This code returns even the words that contain substrings of the target word. For example if the word is "there" then the search returns "there", "therefore", "thereby", etc. I want the code to return only the lines which contain "there". Period. split the line into tokens: if word in line.split(): import re file = open('wordlist.txt', 'r') for line in file.readlines(): if re.search('^there$', line, re.I): print line The re.search

I have a group of very large (a couple of GB's each) text files. I need to add two lines at the beginning of each of these files. I tried using sed with the following command sed -i '1iFirstLine' sed -i '2iSecondLine' The problem with sed is that it loops through the entire file, even if had to add only two lines at the beginning and therefore it takes lot of time. Is there an alternate way to do this more efficiently, without reading the entire file? You should try echo "1iFirstLine" > newfile.txt echo "2iSecondLine" >> newfile.txt cat oldfile.txt >> newfile.txt mv newfile.txt oldfile.txt

This question already has answers here : Closed 9 years ago . Possible Duplicate: Convert array into csv Hi, How to convert array into .txt file? This is my array: Array ( [OrderList_RetrieveByContactResult] => Array ( [OrderDetails] => Array ( [0] => Array ( [entityId] => 156456 [orderId] => 110631 [orderName] => testing2 [statusTypeId] => 15656 [countryCode] => AU [orderType] => 2 [invoiceNumber] => 1001 [invoiceDate] => 2010-10-19T00:00:00 [userID_AssignedTo] => 245454 [shippingAmount] => 8.95 [shippingTaxRate] => 0 [shippingAttention] => tttesst [shippingInstructions] => this a test

I'd like to keep a "compile-counter" for one of my projects. I figured a quick and dirty way to do this would be to keep a text file with a plain number in it, and then simply call upon a small script to increment this each time I compile. How would I go about doing this using the regular Windows command line? I don't really feel like installing some extra shell to do this but if you have any other super simple suggestions that would accomplish just this, they're naturally appreciated as well. You can try a plain old batchfile. @echo off for /f " delims==" %%i in (counter.txt) do set /A temp

I know more about bicycle repair, chainsaw use and trench safety than I do Python or text encoding; with that in mind... Python text encoding seems to be a perennial issue (my own question: Searching text files' contents with various encodings with Python? , and others I've read: 1 , 2 . I've taken a crack at writing some code to guess the encoding below. In limited testing this code seems to work for my purposes* without me having to know an excess about the first three bytes of text encoding and the situations where those data aren't informative. *My purposes are: Have a dependency-free