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Author SHA1 Message Date
Maxime Coste
d44e160aa7 Regex: add a unit test for why lookaheads dont count for start chars anymore 2017-11-01 14:05:15 +08:00
Maxime Coste
87eec79d07 Regex: comment the mutables in CompiledRegex::Instruction and fix their init 2017-11-01 14:05:14 +08:00
Maxime Coste
8b2297f5ca Regex: Introduce a Regex memory domain to track usage separately 2017-11-01 14:05:14 +08:00
Maxime Coste
9ec175f2f8 Regex: use binary search to for character class ranges check 2017-11-01 14:05:14 +08:00
Maxime Coste
6e65589a34 Regex: compute start chars from matchers, do not compute it from lookarounds 
Computing potential start characters from lookarounds is more complex
than expected, and not worth the complexity.
 2017-11-01 14:05:14 +08:00
Maxime Coste
621b0d3ab8 Regex: remove the need to a processed inst vector 
Identify each step with a counter, and check if the instruction
was already processed this step. This makes the matching faster,
by removing the need to maintain a vector of instructions executed
this step.
 2017-11-01 14:05:14 +08:00
Maxime Coste
cfc52d7e6a Regex: use intrusive linked list for the free saves instead of a Vector 2017-11-01 14:05:14 +08:00
Frank LENORMAND
3acb75c5c2 Regex: Fix a few mistakes in the documentation 2017-11-01 14:05:14 +08:00
Maxime Coste
8c529d3cff Regex: add a regex.asciidoc documentation page describing the syntax 2017-11-01 14:05:14 +08:00
Maxime Coste
df16fea82d Regex: rename "flags" with the more common "modifiers" 2017-11-01 14:05:14 +08:00
Maxime Coste
52d443f764 Regex: Correctly handle ignore case mode for start chars computation 2017-11-01 14:05:14 +08:00
Maxime Coste
b8495f0953 Regex: Rework parsing, treat lookarounds as assertions, and flags separately 2017-11-01 14:05:14 +08:00
Maxime Coste
b0233262b8 Regex: Limit programs to std::numeric_limits<uint16_t>::max() instructions 2017-11-01 14:05:14 +08:00
Maxime Coste
8c8dcb3a84 Regex: Fix reverse searching behaviour, again 2017-11-01 14:05:14 +08:00
Maxime Coste
9753bcd0ad Regex: limit explicit quantifiers value (too 1000 for now) 
Fixes #1628
 2017-11-01 14:05:14 +08:00
Maxime Coste
2b97e4e124 Regex: Fix handling of ^ and $ in backward matching mode 2017-11-01 14:05:14 +08:00
Maxime Coste
3c999aba37 Regex: Only reset processed and scheduled flags on relevant instructions 
On big regex, reseting all those flags on all instructions for each
character can become the dominant operation. Track that actual
instructions index processed (the scheduled are already tracked in
the next_threads vector), and only reset these.
 2017-11-01 14:05:14 +08:00
Maxime Coste
5bf4be645a Regex: Fix support for ignore case in lookarounds 2017-11-01 14:05:14 +08:00
Maxime Coste
80f6caee81 Regex: move try/catch blocks inside boost specific code 2017-11-01 14:05:14 +08:00
Maxime Coste
dd9e43e6f9 Regex: small code cleanup 2017-11-01 14:05:14 +08:00
Maxime Coste
23b3a221eb Regex: support more than two children in alternations 
Avoid deep nested alternations, parse them flattened.
 2017-11-01 14:05:14 +08:00
Maxime Coste
fb5243f710 Regex: print instruction index in dump_regex 2017-11-01 14:05:14 +08:00
Maxime Coste
c8966ca701 Regex: Assert that the regex direction matches the vm direction 2017-11-01 14:05:14 +08:00
Maxime Coste
74ed102cab Regex: Tweak definition of character class and control escape tables 2017-11-01 14:05:14 +08:00
Maxime Coste
df73b71dfc Regex: fix lookarounds handling when computing starting chars 2017-11-01 14:05:14 +08:00
Maxime Coste
1c95074657 Make use of custom regex backward searching support for reverse search 2017-11-01 14:05:14 +08:00
Maxime Coste
785cd34b4b Regex: Make boost checking disableable at compile time 2017-11-01 14:05:14 +08:00
Maxime Coste
065bbc8f59 Regex: switch to custom impl, use boost for checking 2017-11-01 14:05:14 +08:00
Maxime Coste
9305fa1369 Regex: Fix lookaround use in moon.kak 
(?=[A-Z]\w*) is strictly the same as (?=[A-Z]) as \w* will always
at least match an empty string.
 2017-11-01 14:05:14 +08:00
Maxime Coste
cca730193c Regex: Support any char and character classes in lookarounds 
Lookarounds still need to be fixed size, but accept character classes
as well as plain literals.
 2017-11-01 14:05:14 +08:00
Maxime Coste
b8cb65160a Regex: use std::conditional instead of custom template class to choose Utf8It 2017-11-01 14:05:14 +08:00
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