Re: [boost] [explore] Library Proposal: Container Streaming

Subject: Re: [boost] [explore] Library Proposal: Container Streaming
From: Jeffrey Faust (jeff_at_[hidden])
Date: 2009-12-01 19:47:05

Another thing that explore provides beyond the basic 'cout << c'
is a set of extendable manipulators.  These behave like existing
std manipulators to modify the formatting of the output.  Love
them or hate them, they are familiar to a large base of developers.

In particular, the cols and item_width manipulators together
provide a simple but powerful way to stream numeric data.

Can either serialization or karma handle this as easily?

-- Jeff Faust

#include <boost/explore/map.hpp>
#include <boost/explore/vector.hpp>
#include <iostream>
#include <string>

using namespace std;
using namespace boost::explore;

int main()
{
    map<int, string> mis;
    cout << mis << endl;
    // []

    mis[1] = "Hello";
    cout << mis << endl;
    // [1:Hello]

    cout << quote_strings << mis << endl;
    // [1:"Hello"]

    vector<int> vi;
    for( int i = 1; i <= 9; ++i )
        vi.push_back(i*2);

    cout << vi << endl;
    // [2, 4, 6, 8, 10, 12, 14, 16, 18]

    cout << delimiters("", " ", "");
    cout << vi << endl;
    // 2 4 6 8 10 12 14 16 18

    cout << cols(3) << vi << endl;
    // 2 4 6
    // 8 10 12
    // 14 16 18

    cout << item_width(3) << vi << endl;
    //  2   4   6
    //  8  10  12
    // 14  16  18
}