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37 lines
1.7 KiB
Markdown
37 lines
1.7 KiB
Markdown
# Hyperscan Change Log
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This is a list of notable changes to Hyperscan, in reverse chronological order.
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## [4.1.0] 2015-12-18
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- Update version of PCRE used by testing tools as a syntax and semantic
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reference to PCRE 8.38.
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- Small updates to fix warnings identified by Coverity.
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- Clean up and unify exception handling behaviour across GPR and SIMD NFA
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models.
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- Fix bug in handling of bounded repeat triggers with large gaps between them
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for sparse repeat model.
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- Correctly reject POSIX collating elements (`[.ch.]`, `[=ch=]`) in the parser.
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These are not supported by Hyperscan.
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- Add support for quoted sequences (`\Q...\E`) inside character classes.
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- Simplify FDR literal matcher runtime by removing some static specialization.
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- Fix handling of the POSIX `[:graph:]`, `[:print:]` and `[:punct:]` character
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classes to match the behaviour of PCRE 8.38 in both standard operation and
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with the UCP flag set. (Note: some bugs were fixed in this area in PCRE
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8.38.) Previously Hyperscan's behaviour was the same as versions of PCRE
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before 8.34.
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- Improve performance when compiling pattern sets that include a large number
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of similar bounded repeat constructs. (github issue #9)
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## [4.0.1] 2015-10-30
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- Minor cleanups to test code.
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- CMake and other build system improvements.
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- API update: allow `hs_reset_stream()` and `hs_reset_and_copy_stream()` to be
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supplied with a NULL scratch pointer if no matches are required. This is in
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line with the behaviour of `hs_close_stream()`.
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- Disallow bounded repeats with a very large minimum repeat but no maximum,
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i.e. {N,} for very large N.
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- Reduce compile memory usage in literal set explansion for some large cases.
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## [4.0.0] 2015-10-20
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- Original release of Hyperscan as open-source software.
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