My program is supposed to align inputted text based on what the user specifies, so far I've gotten it to change the width but not align the text (Left, Right, Center). I've seen <iomanip> but it doesn't help in my case. The code I've gotten so far is
#include <iostream>
#include <sstream>
#include <vector>
#include <iterator>
using namespace std;
string repeatChar(char c, int n) {
string out;
for (; n > 0; n--) {
out.push_back(c);
}
return out;
}
vector<string> getInput() {
vector<string> output;
string line;
cout << "Enter text, empty return will quit the input" << endl;
do {
cout << "> ";
getline(cin, line);
if (line.empty())
continue;
istringstream in(line);
string word;
while (in.good()) {
in >> word;
if (!word.empty())
output.push_back(word);
}
} while (!line.empty());
return output;
}
void printLine(vector<string>::iterator start, vector<string>::iterator end,
int width) {
if(start == end)
return;
int chars = 0;
int spaces = -1;
vector<string> currentLine;
for (; start != end; start++) {
string &word = *start;
int newchars = chars + word.length();
int newspaces = spaces + 1;
if (newchars + newspaces <= width) {
currentLine.push_back(word);
chars = newchars;
spaces = newspaces;
} else
break;
}
cout << '|';
if (spaces <= 0) {
cout << currentLine[0] << repeatChar(' ', (width - chars));
} else {
int spaceWidth = (width - chars) / spaces;
int extraWidth = (width - chars) % spaces;
int i;
for (i = 0; i < currentLine.size() - 1; i++) {
cout << currentLine[i];
cout << repeatChar(' ', spaceWidth);
if (extraWidth > 0) {
cout << ' ';
extraWidth--;
}
}
cout << currentLine[i];
}
cout << '|' << endl;
printLine(start, end, width);
return;
}
void printJustify(vector<string> words, int width) {
cout << '+' << repeatChar('-', width) << '+' << endl;
printLine(words.begin(), words.end(), width);
cout << '+' << repeatChar('-', width) << '+' << endl;
}
int main() {
vector<string> input = getInput();
int maxWidth = 0;
for (int i = 0; i < input.size(); i++) {
maxWidth = (input[i].length() > maxWidth) ? input[i].length() : maxWidth;
}
int width;
do {
cout << "> Enter width of text and align(Left, Right, Center) ";
cin >> width;
if (width == 0)
continue;
width = (width < maxWidth) ? maxWidth : width;
printJustify(input, width);
} while (width > 0);
return 0;
}
but this only adjusts the width so my output is
Enter text, empty return will quit the input
> There are many types of Parrots in the world,
> for example, African Greys, Macaws,
> Amazons. And much much more.
>
> Enter width of text and align(Left, Right, Center) 30
+------------------------------+
|There are many types of|
|Parrots in the world, for|
|example, African Greys,|
|Macaws, Macaws, Amazons. And|
|much much more. more.|
+------------------------------+
> Enter width of text and align(Left, Right, Center)
This is great but I also need to align Left, Right, Center, depending on what the user inputs. I've used <iomanip> but that hasn't been useful. How can I get the output to align left, right, or center?
