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Author SHA1 Message Date
Maxime Coste
db06acdfab Regex: Fix computation of potential starts for lookaheads 2017-11-01 14:05:14 +08:00
Maxime Coste
34b1f1ccb6 Regex: detect when all characters can start and avoid allocating 2017-11-01 14:05:14 +08:00
Maxime Coste
ea85f79384 Regex: add elided braces to fix compilation on older gcc 2017-11-01 14:05:14 +08:00
Maxime Coste
bf3b50a543 Regex: Fix wrong size of character_class_escapes array 2017-11-01 14:05:14 +08:00
Maxime Coste
08ea68dc1f Regex: Fix handling of match_prev_avail for boost regex 
We were passing around iterators that were not allowed to
go before the begin iterator.
 2017-11-01 14:05:14 +08:00
Maxime Coste
9ec376135b Regex: Introduce RegexExecFlags::PrevAvailable 
Rework assertion code as well.
 2017-11-01 14:05:14 +08:00
Maxime Coste
73e177ec59 Regex: Do not use sized deallocation to support more compilers 2017-11-01 14:05:14 +08:00
Maxime Coste
30dacdade2 Regex: deallocate Saves memory on ThreadedRegexVM destruction 2017-11-01 14:05:14 +08:00
Maxime Coste
578640c8a4 Regex: Fix handling of control escapes inside character classes 2017-11-01 14:05:14 +08:00
Maxime Coste
f3736a4b48 Regex: tag instructions as scheduled as well instead of searching 
And a few more code cleanup in the ThreadedRegexVM
 2017-11-01 14:05:14 +08:00
Maxime Coste
6bc5823745 Regex: refactor ThreadedRegexVM::exec_from code 2017-11-01 14:05:14 +08:00
Maxime Coste
4ff655cc09 Regex: store the processed flag directly in CompiledRegex instructions 2017-11-01 14:05:14 +08:00
Maxime Coste
732b8bc2a4 Regex: abandon bytecode and just use a simple list of instructions 
Makes the code simpler.
 2017-11-01 14:05:14 +08:00
Maxime Coste
6434bca325 Regex: Add some comments, remove supurious semicolons 2017-11-01 14:05:14 +08:00
Maxime Coste
911a893225 Regex: fix get_base(std::reverse_iterator<...>) returning a ref to temporary 2017-11-01 14:05:14 +08:00
Maxime Coste
11abd544c6 Regex: avoid infinite loops 2017-11-01 14:05:14 +08:00
Maxime Coste
c47cdc06a7 Regex: Add support for backward matching 
Regex can be compiled for backward matching instead of forward matching
and the ThreadedRegexVM is able to iterate in reverse on the subject
string to find the last match instead of the first.
 2017-11-01 14:05:14 +08:00
Maxime Coste
071b897e00 Regex: Remove static RegexCompiler::compile 2017-11-01 14:05:14 +08:00
Maxime Coste
52ee62172a Regex: remove use of buffer_utils.hh from regex_impl.cc 2017-11-01 14:05:14 +08:00
Maxime Coste
c375268c2d Regex: Use memcpy to write/read offsets from bytecode 
reinterpret_cast was undefined behaviour as we do not guarantee
that offsets are going to be stored properly aligned.
 2017-11-01 14:05:14 +08:00
Maxime Coste
b53227d62c Regex: slight cleanup of the unit tests 2017-11-01 14:05:14 +08:00
Maxime Coste
337e58d4f9 Regex: Cleanup character class parsing a bit 2017-11-01 14:05:14 +08:00
Maxime Coste
236751cb84 Regex: Make ThreadedRegexVM a proper class, define a proper interface 2017-11-01 14:05:14 +08:00
Maxime Coste
3b69dda04e Regex: Find potential start position using a map of valid start chars 
With this optimization we get close to performance parity with boost
regex on the common use cases in Kakoune.
 2017-11-01 14:05:14 +08:00
Maxime Coste
741772aef9 Regex: Optimize single char character classes as literals 2017-11-01 14:05:14 +08:00
Maxime Coste
fabeab1ee1 Regex: reorder lookaround ops, group by direction 2017-11-01 14:05:14 +08:00
Maxime Coste
854144c535 Regex: Fix handling of Save instruction in ThreadedRegexVM 
When not saving, we were not fully reading the instruction stream,
leading to an out of sync instruction pointer.
 2017-11-01 14:05:14 +08:00
Maxime Coste
f1b4931824 Regex: Fix handling of non capturing groups (?:...) 
We were wrongly keeping the `:` as a literal content of the group
 2017-11-01 14:05:14 +08:00
Maxime Coste
5f6e71c4dc Regex: More code tweaks and cleanups in ThreadedRegexVM 2017-11-01 14:05:14 +08:00
Maxime Coste
5f54e0de0e Regex: Code cleanup and refactor for Saves handling 2017-11-01 14:05:14 +08:00
Maxime Coste
dbb175841b Regex: do not write the search prefix inside the program bytecode 
Its faster to have specialized code in the VM directly
 2017-11-01 14:05:14 +08:00
Maxime Coste
cf5055f68b Regex: small code tweak 2017-11-01 14:05:14 +08:00
Maxime Coste
e0fac20f6c Regex: Use a custom allocated buffer for Saves instead of a Vector 2017-11-01 14:05:14 +08:00
Maxime Coste
1399563e40 Regex: make m_current_threads and m_next_threads local variable of exec 2017-11-01 14:05:14 +08:00
Maxime Coste
54da8098ae Regex: Add a NoSaves RegexExecFlags to disable saving positions 2017-11-01 14:05:14 +08:00
Maxime Coste
119bc38254 Regex: small refactor of ThreadedRegexVM::clone_saves 2017-11-01 14:05:14 +08:00
Maxime Coste
9fbafba4cb Regex: Refactor thread handling in ThreadedRegexVM 2017-11-01 14:05:14 +08:00
Maxime Coste
589cde67f0 Regex: store saves in a copy on write structure 2017-11-01 14:05:14 +08:00
Maxime Coste
11b9c996ea Regex: small code style tweak 2017-11-01 14:05:14 +08:00
Maxime Coste
51ad8b4c85 Regex: fix handling of negative escaped character classes 2017-11-01 14:05:14 +08:00
Maxime Coste
adcd02b7d2 Regex: Replace boost regex_iterator impl with our own 
Ensure we check the results from our own regex impl in all uses of
regexs in Kakoune.
 2017-11-01 14:05:14 +08:00
Maxime Coste
f007794d9c Regex: introduce RegexExecFlags to control various behaviours 2017-11-01 14:05:14 +08:00
Maxime Coste
73b14b11be Regex: small code tweak in ThreadedRegexVM 2017-11-01 14:05:14 +08:00
Maxime Coste
630d078b6d Regex: Fix use of not-yet-constructed CompiledRegex in TestVM impl 2017-11-01 14:05:14 +08:00
Maxime Coste
5b0c2cbdc2 Regex: Ensure we dont have a thread explosion in ThreadedRegexVM 
Always remove threads with lower priority that end up on the same
instruction as a higher priority thread (as we know they will behave
the same from now on)
 2017-11-01 14:05:14 +08:00
Maxime Coste
b4f923b7fc Regex: min/max quantifiers can be non greedy as well 2017-11-01 14:05:14 +08:00
Maxime Coste
f02b2645da Regex: validate that our custom impl gets the same results as boost regex 
In addition to running boost regex, run our custom regex and compare
the results to ensure the two regex engine agree.
 2017-11-01 14:05:14 +08:00
Maxime Coste
76dcfd5c52 Regex: support escaping characters in character classes 2017-11-01 14:05:14 +08:00
Maxime Coste
3d2262bebf Regex: add support for case insensitive matching, controlled by (?i) 2017-11-01 14:05:14 +08:00
Maxime Coste
7673781751 Regex: use \A \z for subject start/end 
This is the most common syntax in various regex variants.
 2017-11-01 14:05:14 +08:00