| 495 | typename alloc |
| 496 | > |
| 497 | const std::basic_string<charT,traits,alloc> wrap_string ( |
| 498 | const std::basic_string<charT,traits,alloc>& str, |
| 499 | const unsigned long first_pad = 0, |
| 500 | const unsigned long rest_pad = 0, |
| 501 | const unsigned long max_per_line = 79 |
| 502 | ) |
| 503 | { |
| 504 | DLIB_ASSERT ( first_pad < max_per_line && rest_pad < max_per_line && |
| 505 | rest_pad >= first_pad, |
| 506 | "\tconst std::basic_string<charT,traits,alloc> wrap_string()" |
| 507 | << "\n\tfirst_pad: " << first_pad |
| 508 | << "\n\trest_pad: " << rest_pad |
| 509 | << "\n\tmax_per_line: " << max_per_line ); |
| 510 | |
| 511 | using namespace std; |
| 512 | |
| 513 | basic_ostringstream<charT,traits,alloc> sout; |
| 514 | basic_istringstream<charT,traits,alloc> sin(str); |
| 515 | |
| 516 | for (unsigned long i = 0; i < rest_pad; ++i) |
| 517 | sout << _dT(charT," "); |
| 518 | const basic_string<charT,traits,alloc> pad(sout.str()); |
| 519 | sout.str(_dT(charT,"")); |
| 520 | |
| 521 | for (unsigned long i = 0; i < first_pad; ++i) |
| 522 | sout << _dT(charT," "); |
| 523 | |
| 524 | |
| 525 | typename basic_string<charT,traits,alloc>::size_type remaining = max_per_line - rest_pad; |
| 526 | |
| 527 | basic_string<charT,traits,alloc> temp; |
| 528 | |
| 529 | sin >> temp; |
| 530 | while (sin) |
| 531 | { |
| 532 | if (temp.size() > remaining) |
| 533 | { |
| 534 | if (temp.size() + rest_pad >= max_per_line) |
| 535 | { |
| 536 | string::size_type i = 0; |
| 537 | for (; i < temp.size(); ++i) |
| 538 | { |
| 539 | sout << temp[i]; |
| 540 | --remaining; |
| 541 | if (remaining == 0) |
| 542 | { |
| 543 | sout << _dT(charT,"\n") << pad; |
| 544 | remaining = max_per_line - rest_pad; |
| 545 | } |
| 546 | } |
| 547 | } |
| 548 | else |
| 549 | { |
| 550 | sout << _dT(charT,"\n") << pad << temp; |
| 551 | remaining = max_per_line - rest_pad - temp.size(); |
| 552 | } |
| 553 | } |
| 554 | else if (temp.size() == remaining) |
no test coverage detected