| 411 | } |
| 412 | |
| 413 | void fx_unescape(txMachine* the) |
| 414 | { |
| 415 | txString src; |
| 416 | txInteger length; |
| 417 | char c; |
| 418 | txInteger d; |
| 419 | txString dst; |
| 420 | |
| 421 | if (mxArgc < 1) { |
| 422 | mxResult->value.string = mxUndefinedString.value.string; |
| 423 | mxResult->kind = mxUndefinedString.kind; |
| 424 | return; |
| 425 | } |
| 426 | src = fxToString(the, mxArgv(0)); |
| 427 | length = 0; |
| 428 | while ((c = c_read8(src++))) { |
| 429 | if (c == '%') { |
| 430 | c = c_read8(src++); |
| 431 | if (c == 'u') { |
| 432 | if (fxParseUnicodeEscape(&src, &d, 0, '%')) |
| 433 | length += mxStringByteLength(d); |
| 434 | else |
| 435 | length += 2; |
| 436 | } |
| 437 | else { |
| 438 | src--; |
| 439 | if (fxParseHexEscape(&src, &d)) |
| 440 | length += mxStringByteLength(d); |
| 441 | else |
| 442 | length += 1; |
| 443 | } |
| 444 | } |
| 445 | else |
| 446 | length += 1; |
| 447 | } |
| 448 | length += 1; |
| 449 | if (length == (src - mxArgv(0)->value.string)) { |
| 450 | mxResult->value.string = mxArgv(0)->value.string; |
| 451 | mxResult->kind = mxArgv(0)->kind; |
| 452 | return; |
| 453 | } |
| 454 | mxResult->value.string = fxNewChunk(the, length); |
| 455 | mxResult->kind = XS_STRING_KIND; |
| 456 | src = mxArgv(0)->value.string; |
| 457 | dst = mxResult->value.string; |
| 458 | while ((c = c_read8(src++))) { |
| 459 | if (c == '%') { |
| 460 | c = c_read8(src++); |
| 461 | d = 0; |
| 462 | if (c == 'u') { |
| 463 | if (fxParseUnicodeEscape(&src, &d, 0, '%')) |
| 464 | dst = mxStringByteEncode(dst, d); |
| 465 | else { |
| 466 | *dst++ = '%'; |
| 467 | *dst++ = 'u'; |
| 468 | } |
| 469 | } |
| 470 | else { |
nothing calls this directly
no test coverage detected