I am new to C, but I recently completed an exercise from a book that finds a string in another string, removes the string, and replaces it with another string.
Code:
// Replace String
#include <stdio.h>
#include <stdbool.h>
bool replaceString (char source[], char s1[], char s2[])
}
[code]....
I have a problem i have a textbox filled with info when the button is click but what i need to do now is when new info is place in the textbox i need the results textbox's to clear and the new info put in the textbox.
i know how to clear the textbox
txtVolume.Text = string.Empty;
But it just keeps the textbox empty.
Is there a way to replace 3 char's in a string. For example i have a string containing
s = "The school is called 7x8"
I want to replace the "7x8" with "LSU". But the "x" can be any letter or number.
Is there a way to do that ?
I have an open file dialog that opend the xml file and store the path to the textbox, it returns the path correctly but when i need to store that xml file into the database it tells me that there is an error next to '' because when i try to debug it it gives me "C:\Student Results\FC2015.xml" this results then it breaks. here is my code:
This code returns xml path to textbox
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = "XML Files (*.xml)|*.xml";
ofd.FilterIndex = 0;
[Code]....
I have a challenge to replace all the words "you" in a sentence that is entered by a user to "u". I have got this working but my code is also changing yourself to urself which it should not be doing.
#include <iostream>
#include <string>
using namespace std;
string shortenMsg (string smsP) {
string sentence = smsP;
string word1 = "you";
string word2 = "u";
[Code] .....
I'm having a bit of problem. I've set the string 'Absent' to all student in a file. However, I want to replace 'Absent' with 'present' when the correct ID assigned to a student is entered. In other words, 'Absent' will only change to 'Present' for a specific person at a time. I'm not sure how to implement this
View 4 Replies View RelatedI adapted the code from the following: [URL]
To replace a string in my file with another. The file contents look like the following:
abc 123 0
"abc"= The username
"123"= Their password
"0"= The amount in their bank
I want to change their bank amount.
But, it isn't working, nor is it even giving me an error code.
// When the user logs out, make changes to their bank
string strNew = std::to_string(player.bank); // String representation of the revised player bank
ifstream filein("user_accounts.txt"); // Old repository of player data
ofstream fileout("user_accounts_new"); // New repository of player data
[Code].....
I am a beginner of c#.. i have try to made a windows notepad and face some issues. I want to add find string from open file... and also want to replace it with a new string... Is there any simple and easy solution to this problem??
View 7 Replies View Relatedi have a text file... with example following content:
Pizza 23232
Car 44,495
Drink 3493,90494
....
..
.
and so on..
no i want to find the 44,495 in this textfile.. calculate a new value like 44,495 x 2 + 5
and write the same file as
Pizza 23232
Car 93,99
Drink 3493,90494
....
..
.
back..
"C++ is a general-purpose programming language." I have to find the word "C++" and replace it with "Java" and then capitalize all letters.
#include <iostream>
#include <string>
using namespace std;
int main( ) {
string origin; //contains input string
string replace; //the string obtained by replacing "C++" with "Java"
[Code] ....
I'm building a find and replace function for my text editor I'm building the function without support from the algorithm header.
The function is written like: doc.find_replace("Word_to_be_replaced", "The_word_that_is_replacing"); I find this very easy to understand replace this, with this.
find_replace will both have char * as their arguments.
The problem I'm having right now if I replace a bigger word for a smaller word how do I delete the extra characters from memory.
So if I replace "Goodbye" with "Hello" how do I delete the last two characters? So I don't print garbage code.
I have a question about one function in my program. Write a function that will replace players in a team. New player gets in the game, and takes the place of one that leaves. Prototype of function is:
void replace(TEAM *p,PLAYER newplayer,int num)
where second parameter is new player, and the third is a jersey number of player who leaves the game.
Two structures are defined as:
typedef struct {
char name[25],surname[25];int number;
}PLAYER;
typedef struct {
char nameofteam[25];int numberofplayers;PLAYER *players;
}TEAM;
First I tried to read which player should get out, but that didnt work:
printf("which player should get out?");
do {
scanf("%s",p->players.number)
} while(p->players.number);//Choose one of previously read players
Second thing is to read a new player and replace him with the chosen who leaves.
I have function which will replace (or create) an file with the contents of another stream. The stream could be anything. The replacement is done safely.
Code:
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <unistd.h>
int do_replace(const char *file, int stream, int cnt) {
[Code] .....
I'm creating simple console application using Code::Blocks to allow me to pass parameters from other application to replace string within text/registry file before execute the registry merge. Passing parameters to console already success. Now I only have problem with reading file. Example of first line in the registry file is as below.
Windows Registry Editor Version 5.00
However when read into string and output to console using 'cout', it will be show as below with spaces in between.
W i n d o w s R e g i s t r y E d i t o r V e r s i o n 5 . 0 0
Below is my code.
ifstream f("install.reg");
string s((istreambuf_iterator<char>(f)), istreambuf_iterator<char>());
cout << s;
Basically, the task is to replace tabs with spaces, ensuring that the number of spaces is appropriate to get you to the next tab stop (i.e. if you were only 4 spaces away from a tab stop, don't replace the tab with 8 spaces).i've seen have included character arrays, and many have included multiple functions. I realize the text says "these exercises suggest programs of somewhat greater complexity than the ones earlie in this chapter," but it seemed like a very straightfortward task.Have i oversimplified or something?
Code:
#include <stdio.h>
#define TAB_STOP 8
int main()
{
int c, i;
}
[code]....
i want to replace tabs with spaces but i didn't get it. I also tried to count all the chars that i read from a file but that does also not work.
Here's what i have so far (fP is just a file)
Code:
void ReplaceTab(FILE *fP) {
int char_ = 0;
if (fP != NULL)
[Code]....
i`m currently racking my brains out over this issue. How do i go about the x as the first occurrence of the letter?
lets say helxo , x is the 2nd occurrence of l. I will want to change back x into l
i have replaced it with x in the earlier step with this code...
string everySecondChar(const string &s,char source,char distance)
{
string t(s);
for(std::string::size_type even =0,pos=t.find(source,0);pos!=std::string::npos;pos=t.find(source,++pos))
{
[Code]....
i would like to reverse the process now, letting x becoming l again!
Supposed i have a word hammer.
how am i suppose to search for the 2nd occurrence of the letter and then replace it with x?
example hammer will become hamxer
I thought about using replace for it, however i`m lost on how to find 2 occurrences of the same letter in the word.
string formatEncrypt(string message) {
int msgLength=message.length();
for(int i=0;i<msgLength;i++) {
if(message[i] == 'j' {
message[i]='i';
[Code] .....
at line 31 i tried to put a z into the alphabet that occurs twice.
this is what i have done so far
example: hello world
It will turn out as helzlo world
However i want to make the output appear as helzo world
#include <iostream>
using namespace std;
int replace(char *ptr, char c1, char c2);
int replace(char *ptr, char c1, char c2){
int count = 0;
int i = 0;
[Code] ......
Segmentation fault (core dumped)
How to design Find and Replace Box for notepad using Windows Forms
View 3 Replies View Relatedi would like to know how to replace a value with the variable that ii is equal, i mean like a=5 i want to be able to replace the number 5 by the letter a when needed in printf. ofc i want to use this for an actual purpuse and meaning what i gave was a mere example and thxx. BTW DONT jUst DROP a few lines of code that would make it work
View 5 Replies View RelatedI have a datagridview (dgv) that is bound to database:
QtyOnHand QtyOnHold QtySold QtyAvailable
10 2 1 null
12 null null null
null null null null
7 5 null null
25 null 5 null
I want to iterate through the datagridview and calculate the last column with this formula:
QtyAvailable = QtyOnHand - QtyOnHold - QtySold
so the datagridview should become:
QtyOnHand QtyOnHold QtySold QtyAvailable
10 2 1 7
12 null null 12
null null null null
7 5 null 2
25 null 5 20
I use this code:
foreach (DataGridViewRow row in dgv.Rows){
if (string.IsNullOrEmpty(row.Cells["QtyOnHand"].Value.ToString())){
row.Cells["QtyAvailable"].Value =
Convert.ToInt32(row.Cells["QtyOnHand"].Value) -
Convert.ToInt32(row.Cells["QtyOnHold"].Value) -
Convert.ToInt32(row.Cells["QtySold"].Value) -
Convert.ToInt32(row.Cells["QtyAvailable"].Value);
}
}
The problem is when any of the value on the right side of the equation is null, the whole equation is invalid. I need to replace the null values by 0 on the fly so that it can be calculated. Note that I do not want to actually replace the null values in the second and third columns of the table, just replace it in the equation whenever it applies to make the calculation work.
I'm learning internet sockets right now and to that end I've made a simple client/server chat program centered around select(). I've got it to where multiple messages can be sent and received on either side and the "prompt" will move down 1 line each time accordingly.
My only sticking point is when someone is in the middle of typing a message and a new message is received. The message they are currently typing is going to be deleted, so they'll have to start over again. What I want to do is grab the current contents of the stdin buffer (meaning, there's no ), save it, print the received message and move the prompt downward as usual, and then put that saved message back into the buffer, meaning not only is it back on the screen now, it's erasable too as if nothing ever happened.
I know that this will definitely be some very very non-standard C, and that's fine. To that end, I've read that curses, GNU readline, and termios are possibilities for this. I've tried those, but am having trouble making it work.
This will be a moot point when I put a GUI on it soon (probably wx, but maybe Qt) since it won't even be an issue, but I'm determined to make this work. Both systems (the "client" and the "server") are Linux, one being Ubuntu and one being Debian.
I have a text file, like that:
(A1*
*
*
*A1)
*
(AM-MNR*AM-MNR)
(V*V)
(C-A1*
*
*
*
C-A1)
Now, I would like to replace some elements, follow the rule:
-(A1* ---> B- A1
- characters "*" following is replace by I-A1
- *A1) ---> I- A1
The output like that:
B- A1
I- A1
I- A1
I- A1
*
B-AM-MNR
(V*V)
B-C-A1
I-C-A1
I-C-A1
I-C-A1
I-C-A1
How can I do now?
My text file have 220 663 lines and 858 995 characters (I used Linux commands : wc to count them. If I use array to store data, I think it's too large array. But if use fstream, I dont know to access each element in stream to compare and replace. I dont know How many labels such as: A1, C- A1, AM- MNR... which I have to replace.
Method which i use to Webrequest requests doing the job well but very slow i need to wait on every foreach item finish a lot of time. I run Execute method inside foreach statement unfortunately it takes a lot of time. I would like to convert it to asynchronous.
//this is in foreach statment and call for every request
public static void Execute(string xmlFileRequest, string xmlFileResult, string InventoryElement, string TimeOutFile, Server server)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(server.ServerIP);
request.Headers.Add(@"SOAP:Action");
request.ContentType = "text/xml;charset="utf-8"";
[Code] ....
Unfortunately i got error (Webrequest timed out)on that line:
using (Stream stream = request.GetRequestStream()) {
soapEnvelopeXml.Save(stream);
}
This is strange because i know for some elements i am expecting timeouts and i am getting them - but if they are then the line which is occuring should be: (this is without my tries) and that should be :
using (WebResponse response = request.GetResponse())
Then I am saving that element to
`sw.WriteLine(InventoryElement);` inside catch.
So the code is working ok in case my code before tries.
I want to remove some character in my file. too i want to replace some char to another. I know the easiest way for this job is we write final text in file. i mean we first produce sightly text then write it in file . I don't want use of temporary string.
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