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path: root/src/pattern.go
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2022-08-03Fix incorrect ordering of `--tiebreak=chunk`Junegunn Choi
2021-02-28Check gofmt in `make test`Junegunn Choi
2020-07-28Smart match of accented charactersJunegunn Choi
Fix #1618
2018-12-19Inverse-only matches should not reorder the remaining resultsJunegunn Choi
Fix #1458
2018-03-13Make fzf pass go vetRyan Boehning
Add String() methods to types, so they can be printed with %s. Change some %s format specifiers to %v, when the default string representation is good enough. In Go 1.10, `go test` triggers a parallel `go vet`. So this also makes fzf pass `go test`. Close #1236 Close #1219
2017-08-20Pass util.Chars by pointerJunegunn Choi
2017-08-15Remove special nilItemJunegunn Choi
2017-08-11Disallow escaping of meta characters except for spacesJunegunn Choi
https://github.com/junegunn/fzf/issues/444#issuecomment-321719604
2017-08-11Treat | as proper query when it can't be an OR operatorJunegunn Choi
2017-08-10Treat $ as proper search queryJunegunn Choi
When $ is the leading character in a query, it's probably not meant to be an anchor.
2017-08-10Build cache key for a pattern only onceJunegunn Choi
2017-08-10Fix escaping of meta characters after ' or ! prefixJunegunn Choi
https://github.com/junegunn/fzf/issues/444#issuecomment-321432803
2017-08-09Allow escaping term starting with |Junegunn Choi
Close #444
2017-08-09Allow escaping meta characters with backslashesJunegunn Choi
One can escape meta characters in extended-search mode with backslashes. Prefixes: \' \! \^ Suffix: \$ Term separator: \<SPACE> To keep things simple, we are not going to support escaping of escaped sequences (e.g. \\') for matching them literally. Since this is a breaking change, we will bump the minor version. Close #444
2017-08-08Fix invalid cache lookupsJunegunn Choi
2017-08-01Inline function calls in a tight loopJunegunn Choi
Manually inline function calls in a tight loop as Go compiler does not inline non-leaf functions. It is observed that this unpleasant code change resulted up to 10% performance improvement.
2017-07-20Avoid unconditionally storsing input as runesJunegunn Choi
When --with-nth is used, fzf used to preprocess each line and store the result as rune array, which was wasteful if the line only contains ascii characters.
2017-07-18Consolidate Result and rank structsJunegunn Choi
By not storing item index twice, we can cut down the size of Result struct and now it makes more sense to store and pass Results by values. Benchmarks show no degradation of performance by additional pointer indirection for looking up index.
2017-07-16Reduce memory footprint of Item structJunegunn Choi
2017-07-16Refactor cache lookupJunegunn Choi
- Remove multiple mutex locks in partial cache lookup - Simplify return values
2017-07-16Remove pointer indirection by changing Chunk definitionJunegunn Choi
2017-06-02Fix inconsistent tiebreak scores when --nth is usedJunegunn Choi
Make sure to consistently calculate tiebreak scores based on the original line. This change may not be preferable if you filter aligned tabular input on a subset of columns using --nth. However, if we calculate length tiebreak only on the matched components instead of the entire line, the result can be very confusing when multiple --nth components are specified, so let's keep it simple and consistent. Close #926
2017-02-01Fix caching scheme when --exact is set and '-prefix is usedJunegunn Choi
2017-01-09Normalize pattern string before passing it to Algo functionJunegunn Choi
2017-01-09Add --normalize option to normalize latin script charactersJunegunn Choi
Close #790
2016-10-04Use exact match by default for inverse search termJunegunn Choi
This is a breaking change, but I believe it makes much more sense. It is almost impossible to predict which entries will be filtered out due to a fuzzy inverse term. You can still perform inverse-fuzzy-match by prepending `!'` to the term. | Token | Match type | Description | | -------- | -------------------------- | --------------------------------- | | `sbtrkt` | fuzzy-match | Items that match `sbtrkt` | | `^music` | prefix-exact-match | Items that start with `music` | | `.mp3$` | suffix-exact-match | Items that end with `.mp3` | | `'wild` | exact-match (quoted) | Items that include `wild` | | `!fire` | inverse-exact-match | Items that do not include `fire` | | `!.mp3$` | inverse-suffix-exact-match | Items that do not end with `.mp3` |
2016-09-18Revise ranking algorithmJunegunn Choi
2016-08-20No need to cache the result in filtering mode (--filter)Junegunn Choi
2016-08-20Remove Offset slice from Result structJunegunn Choi
2016-08-19Micro-optimizationsJunegunn Choi
- Make structs smaller - Introduce Result struct and use it to represent matched items instead of reusing Item struct for that purpose - Avoid unnecessary memory allocation - Avoid growing slice from the initial capacity - Code cleanup
2016-08-14LintJunegunn Choi
2016-08-14[perf] Avoid allocating rune array for ascii stringJunegunn Choi
In the best case (all ascii), this reduces the memory footprint by 60% and the response time by 15% to 20%. In the worst case (every line has non-ascii characters), 3 to 4% overhead is observed.
2016-04-24Fix incorrect cache reference in --exact mode (#547)Junegunn Choi
When we prepend a single quote to our query in --exact mode, we are not supposed to limit the scope of the new search to the previous exact-match result.
2016-04-16Enhanced ranking algorithmJunegunn Choi
Based on the patch by Matt Westcott (@mjwestcott). But with a more conservative approach: - Does not use linearly increasing penalties; It is agreed upon that we should prefer matching characters at the beginnings of the words, but it's not always clear that the relevance is inversely proportional to the distance from the beginning. - The approach here is more conservative in that the bonus is never large enough to override the matchlen, so it can be thought of as the first implicit tiebreak criterion. - One may argue the change breaks the contract of --tiebreak, but the judgement depends on the definition of "tie".
2016-01-14Simplify Item structureJunegunn Choi
This commit compensates for the performance overhead from the extended tiebreak option.
2016-01-13Accept comma-separated list of sort criteriaJunegunn Choi
2015-11-10Fix compatibility issues with OR operator and inverse termsJunegunn Choi
2015-11-09Add OR operatorJunegunn Choi
Close #412
2015-11-03Make --extended defaultJunegunn Choi
Close #400
2015-10-02Use trimmed length when --nth is used with --tiebreak=lengthJunegunn Choi
This change improves sort ordering for aligned tabular input. Given the following input: apple juice 100 apple pie 200 fzf --nth=2 will now prefer the one with pie. Before this change fzf compared "juice " and "pie ", both of which have the same length.
2015-09-12Fix #344 - Backward scan when `--tiebreak=end`Junegunn Choi
2015-09-12Make it possible to unquote the term in extended-exact modeJunegunn Choi
Close #338
2015-08-10Fix --with-nth performance; avoid regex if possibleJunegunn Choi
Close #317
2015-08-02Performance tuning - eager rune array conversionJunegunn Choi
> wc -l /tmp/list2 2594098 /tmp/list2 > time cat /tmp/list2 | fzf-0.10.1-darwin_amd64 -fqwerty > /dev/null real 0m5.418s user 0m10.990s sys 0m1.302s > time cat /tmp/list2 | fzf-head -fqwerty > /dev/null real 0m4.862s user 0m6.619s sys 0m0.982s
2015-06-08Allow ^EqualMatch$Junegunn Choi
2015-04-21Smart-case for each term in extended-search modeJunegunn Choi
Close #208
2015-04-17Improvements in performance and memory usageJunegunn Choi
I profiled fzf and it turned out that it was spending significant amount of time repeatedly converting character arrays into Unicode codepoints. This commit greatly improves search performance after the initial scan by memoizing the converted results. This commit also addresses the problem of unbounded memory usage of fzf. fzf is a short-lived process that usually processes small input, so it was implemented to cache the intermediate results very aggressively with no notion of cache expiration/eviction. I still think a proper implementation of caching scheme is definitely an overkill. Instead this commit introduces limits to the maximum size (or minimum selectivity) of the intermediate results that can be cached.
2015-04-14Fix Unicode case handling (#186)Junegunn Choi
2015-03-31Implement --toggle-sort option (#173)Junegunn Choi
2015-03-19Add support for ANSI color codesJunegunn Choi