1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768 |
- // ----------------------------------------------------------------------------
- // sample_new_features.cpp : demonstrate features added to printf's syntax
- // ----------------------------------------------------------------------------
- // Copyright Samuel Krempp 2003. Use, modification, and distribution are
- // subject to the Boost Software License, Version 1.0. (See accompanying
- // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- // See http://www.boost.org/libs/format for library home page
- // ----------------------------------------------------------------------------
- #include <iostream>
- #include <iomanip>
- #include "boost/format.hpp"
- int main(){
- using namespace std;
- using boost::format;
- using boost::io::group;
- // ------------------------------------------------------------------------
- // Simple style of reordering :
- cout << format("%1% %2% %3% %2% %1% \n") % "o" % "oo" % "O";
- // prints "o oo O oo o \n"
- // ------------------------------------------------------------------------
- // Centered alignment : flag '='
- cout << format("_%|=6|_") % 1 << endl;
- // prints "_ 1 _" : 3 spaces are padded before, and 2 after.
- // ------------------------------------------------------------------------
- // Tabulations : "%|Nt|" => tabulation of N spaces.
- // "%|NTf|" => tabulation of N times the character <f>.
- // are useful when printing lines with several fields whose width can vary a lot
- // but we'd like to print some fields at the same place when possible :
- vector<string> names(1, "Marc-François Michel"),
- surname(1,"Durand"),
- tel(1, "+33 (0) 123 456 789");
- names.push_back("Jean");
- surname.push_back("de Lattre de Tassigny");
- tel.push_back("+33 (0) 987 654 321");
- for(unsigned int i=0; i<names.size(); ++i)
- cout << format("%1%, %2%, %|40t|%3%\n") % names[i] % surname[i] % tel[i];
- /* prints :
-
- Marc-François Michel, Durand, +33 (0) 123 456 789
- Jean, de Lattre de Tassigny, +33 (0) 987 654 321
-
-
- the same using width on each field lead to unnecessary too long lines,
- while 'Tabulations' insure a lower bound on the *sum* of widths,
- and that's often what we really want.
- */
- cerr << "\n\nEverything went OK, exiting. \n";
- return 0;
- }
|