| 525 | |
| 526 | template<class BufferT, class SourceT> |
| 527 | int tss_ConvertOneCharacter(iconv_t convForward, |
| 528 | iconv_t convReverse, |
| 529 | const char** ppSource, |
| 530 | size_t* pnSourceLeft, |
| 531 | char** ppBuffer, |
| 532 | size_t* pnBufferLeft |
| 533 | # if (!SUPPORTS_EXPLICIT_TEMPLATE_FUNC_INST) |
| 534 | , |
| 535 | BufferT /*dummy*/, |
| 536 | SourceT /*dummy*/ |
| 537 | # endif |
| 538 | ) |
| 539 | { |
| 540 | cDebug d("tss_ConvertOneCharacter< B, S, C >()"); |
| 541 | |
| 542 | const char* pSrc = *ppSource; |
| 543 | char* pBuf = *ppBuffer; |
| 544 | |
| 545 | //-- HACK!!!! BAM -- see if it is one of our reserved UCS2 characters |
| 546 | // TODO:BAM -- how does this affect our converters that don't use the UTF-8 step? |
| 547 | if (tss_IsFlaggedCharacter(**((SourceT**)ppSource))) |
| 548 | { |
| 549 | d.TraceDebug("Found one of our unconvertable characters in the reserved range!\n"); |
| 550 | return -1; |
| 551 | } |
| 552 | |
| 553 | //-- Try to find the number of items needed to get a complete character |
| 554 | size_t nSrcTry; |
| 555 | for (nSrcTry = sizeof(SourceT); nSrcTry <= *pnBufferLeft && nSrcTry <= MB_LEN_MAX; nSrcTry += sizeof(SourceT)) |
| 556 | { |
| 557 | size_t nSrcLeft = nSrcTry; |
| 558 | size_t nBufLeft = *pnBufferLeft; // Try to find a character in 'n' items |
| 559 | |
| 560 | // NOTE: On solaris sparc, iconv will attempt to NULL terminate the output, |
| 561 | // so make sure that the buffer has space for a terminating NULL |
| 562 | d.TraceDebug("attempting to convert with %u items\n", nSrcTry); |
| 563 | size_t nConv = // NOTE: |
| 564 | iconv(convForward, // On return, these addresses |
| 565 | (ICONV_SOURCE_TYPE**)&pSrc, // are set for one past the last |
| 566 | &nSrcLeft, // "item" converted successfully |
| 567 | &pBuf, |
| 568 | &nBufLeft); |
| 569 | |
| 570 | if (nConv == (size_t)-1) |
| 571 | { |
| 572 | if (errno == EINVAL) |
| 573 | { |
| 574 | d.TraceDebug("more items needed\n"); |
| 575 | continue; |
| 576 | } |
| 577 | else |
| 578 | { |
| 579 | d.TraceDebug("iconv failed with %d (not EINVAL)\n", errno); |
| 580 | return -1; |
| 581 | } |
| 582 | } |
| 583 | else |
| 584 | { |
no test coverage detected