| 358 | | num = readObject(stream, self) |
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| 359 | | readNonWhitespace(stream) |
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| 360 | | stream.seek(-1, 1) |
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| 361 | | size = readObject(stream, self) |
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| 362 | | readNonWhitespace(stream) |
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| 363 | | stream.seek(-1, 1) |
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| 364 | | cnt = 0 |
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| 365 | | while cnt < size: |
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| 366 | | line = stream.read(20) |
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| 367 | | offset, generation = line[:16].split(" ") |
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| 368 | | offset, generation = int(offset), int(generation) |
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| 369 | | if not self.xref.has_key(generation): |
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| 370 | | self.xref[generation] = {} |
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| 371 | | self.xref[generation][num] = offset |
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| 372 | | cnt += 1 |
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| 373 | | num += 1 |
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| 374 | | readNonWhitespace(stream) |
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| 375 | | stream.seek(-1, 1) |
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| 376 | | assert stream.read(7) == "trailer" |
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| | 358 | while 1: |
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| | 359 | num = readObject(stream, self) |
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| | 360 | readNonWhitespace(stream) |
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| | 361 | stream.seek(-1, 1) |
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| | 362 | size = readObject(stream, self) |
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| | 363 | readNonWhitespace(stream) |
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| | 364 | stream.seek(-1, 1) |
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| | 365 | cnt = 0 |
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| | 366 | while cnt < size: |
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| | 367 | line = stream.read(20) |
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| | 368 | offset, generation = line[:16].split(" ") |
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| | 369 | offset, generation = int(offset), int(generation) |
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| | 370 | if not self.xref.has_key(generation): |
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| | 371 | self.xref[generation] = {} |
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| | 372 | if self.xref[generation].has_key(num): |
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| | 373 | "It really seems like we should allow the last" |
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| | 374 | "xref table in the file to override previous" |
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| | 375 | "ones. Since we read the file backwards, assume" |
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| | 376 | "any existing key is already set correctly." |
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| | 377 | pass |
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| | 378 | else: |
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| | 379 | self.xref[generation][num] = offset |
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| | 380 | cnt += 1 |
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| | 381 | num += 1 |
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| | 382 | readNonWhitespace(stream) |
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| | 383 | stream.seek(-1, 1) |
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| | 384 | trailertag = stream.read(7) |
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| | 385 | if trailertag != "trailer": |
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| | 386 | "more xrefs!" |
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| | 387 | stream.seek(-7, 1) |
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| | 388 | else: |
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| | 389 | break |
|---|
