C++ :: Read String Of Characters And Write With Punctuation Removed
Oct 13, 2014
Write a program that reads a string of characters including punctuation and writes what was read but with the punctuation removed.
This is how i did it:
string x("#punctuation!?=");
cout << x << endl;
for(unsigned i = 0; i < x.size(); ++i) {
if(ispunct(x[i]))
x[i] = ' ';
cout << x << endl;
I am just not sure if thats how they want you to do it because it doesn't remove the punctuations it just replaces them with a space.
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Oct 12, 2014
How to read some characters from file, I know we can move a pointer to some position using seekg() & seekp() function, get current position of the pointer through tellg() & tellp() functions. By moving the pointer to appropriate position using seekg(), we can read the whole line using getline() function. But is there any function which read certain characters from the current position of the pointer and write certain characters from current position of the pointer.
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Oct 12, 2014
How to read some characters from file, I know we can move a pointer to some position using seekg() & seekp() function, get current position of the pointer through tellg() & tellp() functions. By moving the pointer to appropriate position using seekg(), we can read the whole line using getline() function. But is there any function which read certain characters from the current position of the pointer and write certain characters from current position of the pointer.
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Dec 11, 2014
I have it searching through the entire string letter by letter, looking for spaces, punctuation, etc... yet it still is continuing on with the space.
#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>
#include <stdio.h>
#include <cctype>
#include <algorithm>
[Code] ....
Output:
if(str_word == " ")
//or
if(str_word == ' ')
It does nothing to change it. I am completely baffled.
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Mar 13, 2013
how to read characters from user and construct a sting and then extract part of it using substring?
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Mar 20, 2014
so my question is i want to print characters,no string just an array of characters,i do this but it s not working,maybe i have to put the '' at the end?
Code:
int main() {
int i;
char ch[5];
for(i = 0; i < 5; i++) {
scanf("%c",&ch[i]);
[Code]...
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Jul 6, 2014
Im supposed to find the common characters between two string characters, assuming that the user wont input duplicate letters like ddog. When I run my code I get an output of a question mark upside down. Here is my code with comments on what each part is supposed to do
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main(){
char str1[20], str2[20],remp = ' ';
int size1,i,j,temp;
printf ("Input the first string");
[Code]...
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Jun 20, 2013
I'm challenged to write a code for the following:
write a text up to 1000 characters, and get it back. the end of the text is detected though EOF on a new line or reaching 1000 characters.(EOF=ctr-Z on a new line)
I mainly have problem how to bring the EOF work probably. it doesn't react when I press ctrl-z directly?
Code:
int i;
char Text[1000];
printf("write the text:
");
gets(Text);
for(i=0;i<=1000;i++){
[Code] .....
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Jun 3, 2013
I need to write a program that outputs the number of characters, words, and lines in the files that are supplied as command-line arguments.
#include <iostream>
#include <string>
#include <iomanip>
[Code]....
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Mar 7, 2013
My program is a dictionary vector with a cin at the end that will read your input and check if it's in the dictionary.
#include "std_lib_facilities_3.h"
#include <algorithm>
#include <string>
#include <iostream>
string translate_to_lower(string s){
transform(s.begi[/code]n(), s[/code].end(), s.begin(), (int (*)(int)) tolower);
[Code] ...
How do I make the program accept inputs such as "hello?", "hello!", and "hello,"?
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Jul 29, 2014
Now, I have an assignment in which I am to accept arguments from the command line and copy them into a cstring and display said cstring unmolested. Then I should store it into another cstring but ignore all punctuation, spaces and capital letters. Like this:
./a5 Marge lets Norah see Sharon's telegram
As is: Marge lets Norah see Sharon's telegram
---->: margeletsnorahseesharonstelegram
<----: margeletsnorahseesharonstelegram
Sequence entered is a palindrome
=======================================================
Finally I am to chaeck to see if it is a palindrome. Most of it works and if no spaces are entered nor punctuation it works. However, punctuation causes it to malfunction.
char *FormSeqProc (int argc, char *argv[], char seqAsIs[]) {
int len = 0,
n = 0;
for (int p = 1; p < argc; ++p) {
len += strlen(argv[p]);
[Code] ....
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Jan 27, 2014
I have written this program to copy all the characters input from the keyboard into the array till a "?" mark is entered. what is the error i am doing. I am getting a run time error in this case.
Code:
void word_reversal(void) {
char array[100];
int index=0;
printf("Enter the number of characters less than 100
");
do {
scanf("%c",&array[index++]);
}while(array[index] != '?');
}
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Dec 29, 2014
I'm new with C language. I got task to do . Actually there are 2 points. Both should be done with reading text from file. write down all letters from text in reverse alphabetic order (each letter 1 time).write down all words in random order.
I'm stuck with first point. Below code gives me entire text, but i need unique characters only. Text file contains few sentences.
Code:
#include<stdio.h>
void main( ) {
FILE *in;
int ch;
if ( (in = fopen("test.txt", "r") ) != NULL ) {
[Code] ....
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Nov 27, 2012
how to read UTF-8 characters from a xml file in c++, not using XMLCh type?
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Jan 31, 2014
I am writing a code to read a file and break it into lines and characters but I am getting an error do not know the reason for it though.
here is my code
#include<fstream>
#include<string>
#include<iostream>
[Code].....
The first line is executing properly but when it goes to the second line I get an error "the program has stopped working"
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Feb 7, 2013
I am stuck in this program, Be given a string of chars, where each single char belongs to the following alphabet: a..zA..Z0..9 (So, in the string there are only lowercases, uppercases and digits. No blank, no comma, ...). For every char of the given alphabet, count how many times in the string
1-- the char belong to a sequence of identical chars whose length is at least three (i.e.: in the string cc74uyrpfccc348fhsjcccc3848djccccc484jd for three times the character 'c' satisfies this condition)
Code:
#include<stdio.h>
#include<conio.h>
#include<string.h>
[Code]...
2-what is the longest substring of characters strictly rising interm of ASCII code(the following is greater (>) of the previous)
3- what is the longest substring of successive characters interm of given string rannge (i.e.: fhkjshdfruytyzABCDEfglsj => 7)
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Feb 12, 2014
I'm writing a program that reads and counts all the printable characters (ASCII 32-126)found in a text file.
For example if the text file read: Why so serious?
The output to the screen would display(in order of ascii value however):
Character-----Total
W--------------1
h--------------1
y--------------1
s--------------3
o--------------2
etc...
However, I don't think it's reading any of the characters.
#include <iostream>
#include <iomanip>
#include <fstream>
#include <cmath>
#include <string>
using namespace std;
int main() {
int i, count[127];
[Code] .....
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Mar 3, 2013
How can I erase the data stored in /tmp/a.txt after every run of this code?
Code:
#include <stdio.h> // IO operations
#include <unistd.h> //for pid, ppid, fork functions
#include <sys/types.h> //for pid_t type, kill function
#include <stdlib.h> //for exit function
#include <signal.h> //for kill function
#include <sys/types.h>
#include <sys/stat.h>
[Code]...
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Dec 22, 2013
My program needs to receive data continuously from one process and the received data is read continuously by another process.But when I am trying to create a pipe using mknod on fat32 file system in linux , it throws an error saying "mknod: operation not permitted".
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Sep 8, 2013
I receive a telegram in XML format and I need to parse it and send my data in the same format back. My main problem is that I'm not allowed to use any open source software or other 3rd party software except VS2010. I have to write it in C++.
Now my question: is there any good tutorial for such a parser? I was hoping that I could write something which can be used similar to the GEtPrivateProfil-functions which are handy for ini-files.
My XML telegram looks like hat:
Code:
<Tag0 cmdId=“254“ version=“1“ ID=“87951“ action=“doing1“>
<!—comment1 -->
<Tag1 lId=“31“ type=“12“ index=“100“ state=“open“ />
<Tag1 lId=“31“ type=“12“ index=“135“ state=“open" />
<!—comment2 -->
<Tag2 lId=“42“ type=“32“ index=“2“ state=“open" >
<param key=“pos“ value=“center“ />
<param key=“car“ />
</epr>
</Tag0>
I was hoping to find a way to get to know how many tag1 and tag2 are in tag0 and then get for each tag the attributes and sub-tags like param in tag2
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Aug 5, 2013
this is my read/write functions based the read from the last post! then went nuts with it! used the %19s%*s on the write to the file, solved all the probs on the read side! but any refining on this would be great. This is another program that i started with the forums, and started going my own direction!
Code:
void WriteAccount(int account,char *a[])
{
FILE *fptr;
char Memo[20];
char buff[20];
double Amount;
struct tm *sTm;
}
[code]....
the a[] is a string array with bank account names, and Account is the number on the menu based list.
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Jan 6, 2014
I have two designs for reading/writing my classes to XML. Which do you think is better:
This is my structure (Attributes are single class members, Elements are std::vector< T > members
Structure:
+ Calibrator
+ Attrib: readLabel (string)
+ Attrib: saveLabel (string)
+ Element: Device
+ Attrib: sourceLabel (string)
+ Attrib: destLabel (string)
+ Element: CalPoint
+ Attrib: sourceVal (double)
+ Attrib: destVal (double)
1. Design 1: Have an independent class to handle everything and "friend" it with the users.
Pro: Only 1 interface needed and we can switch interface easily.
Con: There is a lot of inter-class data which destroys encapsulation
class CalibratorXML;
class Device{
string sourceLabel;
string destLabel;
vector<CalPoint> calPoints;
friend class CalibratorXML;
[Code] .....
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Feb 4, 2013
I am planning to use this mostly to copy binary files, but why won't this work with text???
input.txt
int main(int argc, char* argv[]) {
// open file
std::ifstream ifs;
ifs.open("./input.txt", std::ios::binary);
[Code] ....
output.txt
310^?z^@^@^@^@^@300367346^A^@
Will this method always work to copy a file?
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Dec 10, 2014
I'm looking to write a program in C/C++ to traverse a Fasta file formatted like:
>ID and header information
SEQUENCE1
>ID and header information
SEQUENCE2
and so on
in order to find all unique sequences (check if subset of any other sequence) and write unique sequences (and all headers) to an output file.
My approach was:
Prep: Copy all sequences to an array/list at the beginning (more efficient way to do this?)
Grab header, append it to output file, compare sequence for that header to everything in the list/array. If unique, write it under the header, if not, go on.
However, I'm a little unsure as to how to approach reading the lines in properly. I need to read the top line for the header, and then "return?" to the next line to read the sequence. Sometimes the sequence spans more then two lines, so would I use > (from the example above) as a delimiter? If I use C++, I imagine I'd use iostreams to do the reading.
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Feb 19, 2014
#include <stdio.h>
#include <stdlib.h>
int main () {
FILE * pFile;
long lSize;
char * buffer;
size_t result;
pFile = fopen ( "myfile.bin" , "rb" );
[Code] .....
How to open binary for read and write? Why the buffer is char * buffer? i mean in binary u cant read chars . How can it be? how the data is represented? just like txt file? What the buffer will contain how to print this buffer???
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Nov 17, 2014
reading and writing 2D arrays I've been trying out a few tutorials using FileStream but I couldn't get any of them to work.
Anyway what I'm trying to do is save the playerArray to a .txt file and then read from that .txt into the fields within the GUI. This is supposed to act as a database.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
[Code]....
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