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main() had gotten absurdly long. Split it into reasonable chunks. This refactoring is in preparation for handling splitting output into single pages.
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This is added to contrib rather than examples because it requires c++-11 and lacks a test suite, but it is still useful enough to include with the distribution.
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Required for strtol()
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When parsing content streams, allow content to be split arbitrarily across stream boundaries.
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Be explicit about the need to keep the source QPDF object around.
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The code was using 1.0, but we use /FlateDecode, which didn't appear until 1.2.
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Very badly corrupted files may not have a retrievable root dictionary. Handle that as a special case so that a more helpful error message can be provided.
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When requested, QPDFWriter will do more aggress prechecking of streams to make sure it can actually succeed in decoding them before attempting to do so. This will allow preservation of raw data even when the raw data is corrupted relative to the specified filters.
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QPDFObjectHandle::parseInternal now issues warnings instead of throwing exceptions for all error conditions that it finds (except internal logic errors) and has stronger recovery for things like invalid tokens and malformed dictionaries. This should improve qpdf's ability to recover from a wide range of broken files that currently cause it to fail.
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For cross compiling.
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fixes #117 fixes #118 fixes #119 fixes #120 Several other infinite loop bugs were fixed by previous changes. Include their test files in the test suite.
