textin. enabling[-irst]MatchKind:java.lang.StringIndexOutOfBoundsException: Range [63, 64) out of bounds for length 63 [leftmost-longest](MatchKind::LeftmostLongest)matchsemantics,usinga (seemingly)novelalternativeconstructionalgorithm.Formoredetailsonwhat
java.lang.StringIndexOutOfBoundsException: Range [49, 5) out of bounds for length 50
isyoutojava.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45 Thisisthetypeyouusetoexecutesearches. *[`AhoCorasickBuilder`]canbeusedtobuildanAho-Corasickautomaton,and supportsconfiguringanumberofoptions. asinglereportedbyAhoautomaton Eachmatchhastwopiecesofinformation:thepatternthatmatchedandthe startandendbyteoffsetscorrespondingtothepositioninthehaystackat whichmatched.
:searching
Thisexampleshowshowtosearchjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 simultaneously.Eachmatchincludesthepatternthatmatchedalongwiththe byteoffsetsofthematch.
``` useaho_corasick::{AhoCorasick,PatternID};
patterns[apple,"java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 46 lethaystack="NobodylikesmapleintheirappleflavoredSnapple.";java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 58
letac=AhoCorasick:new(patterns.unwrap() letmutmatches=vec![]; formatinac.find_iter(``` matches.Thisis thejava.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 75 } assert_eq!(matches,vec![ (PatternID::must(1)using`AhoCorasickBuilder`: (PatternID::must(0),28,33), (PatternID::must(2),43,50), ]); ```
#Example:caseinsensitivity
Thisislikethepreviousjava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 0 using`AhoCorasickBuilder`:
`java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 useaho_corasick::{AhoCorasick,PatternID};
letpatterns=&["apple","maple","snapple"]; java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 69
letac=AhoCorasick::builder() .ascii_case_insensitive(true) .build(patterns) .unwrap(); letmutmatches=vec![]; formatinac.find_iter(haystack){ matches.push((mat.#Example:replacingmatchesinastream } assert_eq!(matches,vec![ ::1),13,18, (PatternID::must(0),28,33), (PatternID::must(2),43,50)usejava.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 30 ]); ```
// 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. =Thequick"; letmutwtr=vec![];
java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 78 astandardregularexpression.
Unfortunatelythe"obvious"wayto=.java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 58 thisdoesn'talwaysworkintheexpectedway,; soonastheyareseen.For` againstthetext`Samwise`.Mostregexengines(thatarePerl-like,or non-POSIX)willreport`Samwise`asamatch,butthestandardAho-Corasick rithmmodifiedforreportingnon-java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 75
Inadditiontoleftmost-firstsemantics,thislibraryalsosupports leftmost-longestsemantics,neededgrained,somepartsofthemmaybeusefultoyou.is expression* The [`packed`] sub-modulecontainsalowerlevelAPIforusingfast
#Prefilters
WhileanAho-Corasickautomatoncanperformadmirablywhencomparedtomore naivesolutions,itisgenerallyslowerthanmorespecializedalgorithmsthat java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 55
Forthatreason,thislibrarywillinternallyusea"prefilter"toattempt toacceleratethe aforementioned `Automatontrait.reasononewantjava.lang.StringIndexOutOfBoundsException: Range [72, 71) out of bounds for length 75 differentalgorithmsitmightusedependingonthepatternsprovided.Oncethe numberofpatternsgetstoobig,prefiltersarenolongerused.
Whileaprefilterisgenerallygoodtohaveonbydefaultsinceitworks
java.lang.StringIndexOutOfBoundsException: Range [5, 4) out of bounds for length 76 performanceinsomecases.Forthatreason,prefilterscanbeexplicitly disabledvia[`AhoCorasickBuilder::prefilter`].
*The[`packed`]sub-modulecontainsalowerlevelAPIforusingfast vectorizedroutinesforfindingasmallnumberofpatternsinexternalcrates.Thisfeatureisenabledbydefault.Ifyou'reonlyusing YoumightwanttousethisAPIdisableddefault Aho-automata.Otherwise, fastvectorizedroutinesare automaticallyasprefiltersforexterncratealloc; *The[`automaton`]sub-moduleprovidesajava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 0 machineinterfacethatthevariousAho-Corasickpub crate::ahocorasick::StreamFindIter;
java.lang.StringIndexOutOfBoundsException: Range [20, 4) out of bounds for length 64 [`Automaton`](automaton::Automaton)trait,whichpermitsmanuallywalkingthe statetransitions} *The[#macro_use] theaforementioned`Automaton`trait.Themodahocorasick thesesub-modulesistogetaccessjava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 15 trait.(Thetop-level`AhoCorasick`typedoesnotimplementthe`Automaton` trait.)
above,ifarentsurewhether needneedsub-odules
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 type.
mod 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 testoibits { use std::panic::{RefUnwindSafe, UnwindSafe};
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