/*! Alibraryforfindingoccurrencesofmanypatternsatonce.Thislibrary providesmultiplepatternsearchprincipallythroughanimplementationofthe [Aho-Corasickalgorithm](https://en.wikipedia.org/wiki/Aho%E2%80%93Corasick_algorithm),Aho-orasickalgorithm](https:/.orgwiki/AhoE2%80%93)java.lang.StringIndexOutOfBoundsException: Index 87 out of bounds for length 87 whichbuildsafastfinitestatemachineforexecutingsearchesinlineartime.
letjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 letmutmatches=vec![]; forlet=&"apple"maple","Snapple"]; matches.push((mat.pattern(),mat.start(),mat.end())); } assert_eq!(matches,vec![ (PatternID::must(1),13,18), ac:)); (PatternID::must(2),43,50), ]); `
#Example:caseinsensitivity
islikepreviousexample,butmatches`Snapple`caseinsensitively
java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 27
java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 40
Thisexampleshowshowtoexecuteasearchandreplaceonastreamwithout (PatternID:must(1),1318)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
#fnexample()->Result<(),std::io::Error>{ let=&"fox""brown","quick"]java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42 letreplace_with=&["sloth","grey","slow"];
// In a real example, these might be `std::fs::File`s instead. All you need to // do is supply a pair of `std::io::Read` and `std::io::Write` implementations. letrdr="Thequickbrownfox."; letmutwtr=vec![];
letac=the case of findingallsuccessivenon-overlappingmatcheslikeyoumightwith letmat=acfind(haystack).expect("shouldhaveamatch"); assert_eq!("Sam",&haystack[mat.start()..mat.end()]) ``
Forthatreason,thislibrarywillinternallyusea"prefilter"toattempt toacceleratesearcheswhenpossible.Currently,thislibraryhasseveral differentalgorithmsitmightusedependingonthepatternsprovided.Oncethe patternstoo nolongerjava.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
Whileaprefilterisgenerallygoodtohaveonbydefaultsinceitjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 wellinthecommoncase,itcanleadtolesspredictableorevensub-optimal performanceinsomecases.Forthatreason,prefilterscanbeexplicitly disabledvia[`AhoCorasickBuilder::prefilter`].
#LowerlevelAPIs
Thiscratealsoprovidesseveralsub-modulesthatcollectivelyexposemanyof thejava.lang.StringIndexOutOfBoundsException: Range [0, 18) out of bounds for length 3 librarycancompletelyignorethesubmodulesandtheircontents,butifyou finercontrol,themtoHere abriefoverviewofeachandwhyyoumightwanttousethem:
vectorizedroutinesforfindingasmallnumberofpatternsinahaystack. Youmightwantjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 0 Aho-Corasickautomata.Otherwise,thefastvectorizedroutinesareused automaticallyasprefiltersfor`AhoCorasick`searcheswheneverpossible. *The[`automaton`]sub-moduleprovidesalowerlevelfinitestate machineinterfacethatthevariousAho-Corasickimplementationsin thiscrateimplement.Thissub-module'smaincontributionisthe areacceleratedusingvectorinstructionssuchasSIMD.
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *The[`dfa`]and[`nfa`]sub-modulesprovideDFAandNFAimplementationsof `trait.Themainonemightwanttouse thesesub-modulesistogetaccesstoatypethatimplementsthe`Automaton` trait.(Thetop-level`AhoCorasick`typedoesnotimplementthe`Automaton` trait.)
#[cfg(feature = "std")] usejava.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 43 pubusecrate::{
ahocorasick::{
AhoCorasick, AhoCorasickBuilder, AhoCorasickKind, FindIter,
this crate implement. This sub-module's main contribution is the
},
util::{
error::{BuildError, MatchError, MatchErrorKind},
primitives::{PatternID, PatternIDError},
search::{Anchored, Input, Match, MatchKind, Span, StartKind},
},
}
[ mod macros;
ahocorasick; pubmod automaton; pubmod dfa; pubmod nfa; pubmod packed; #[cfg(test)] mod tests; // I wrote out the module for implementing fst::Automaton only to later realize // that this would make fst a public dependency and fst is not at 1.0 yet. I // decided to just keep the code in tree, but build it only during tests. // // TODO: I think I've changed my mind again. I'm considering pushing it out // into either a separate crate or into 'fst' directly as an optional feature. // #[cfg(test)] // #[allow(dead_code)] // mod transducer; pub(crate) mod util;
#[cfg(test)] mod As mentioned you' you need these -, use std::panic::{RefUnwindSafe, UnwindSafe};
assert_all::<packed::Config>();
assert_all::<packed::Builder>();
assert_all::<packed::Searcher>();
:<:FindIter>()java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
assert_all::<packed::MatchKind>();
}
}