Commit Graph

28 Commits

Author SHA1 Message Date
Junegunn Choi
d4b6338102
Lint 2016-08-14 17:51:34 +09:00
Junegunn Choi
1d4057c209
[perf] Avoid allocating rune array for ascii string
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.
2016-08-14 00:41:30 +09:00
Junegunn Choi
24e1fabf2e
Do not process ANSI codes in --preview output at once
Close #598
2016-06-14 21:52:47 +09:00
Junegunn Choi
2f6d23b91e Enhanced ranking algorithm
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".
2016-04-16 14:33:38 +09:00
Junegunn Choi
45143f9541 Ignore leading whitespaces when calculating 'begin' index 2016-01-14 01:32:03 +09:00
Junegunn Choi
8d3a302a17 Simplify Item structure
This commit compensates for the performance overhead from the
extended tiebreak option.
2016-01-14 01:12:49 +09:00
Junegunn Choi
1d2d32c847 Accept comma-separated list of sort criteria 2016-01-13 21:27:43 +09:00
Junegunn Choi
31278bcc68 Fix compatibility issues with OR operator and inverse terms 2015-11-10 01:54:37 +09:00
Junegunn Choi
92a75c9563 Use trimmed length when --nth is used with --tiebreak=length
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.
2015-10-02 18:40:20 +09:00
Junegunn Choi
90b0cd44ac Should not strip ANSI codes when --ansi is not set 2015-08-28 21:23:10 +09:00
Junegunn Choi
5a72dc6922 Fix #329 - Trim ANSI codes from output when --ansi & --with-nth are set 2015-08-26 23:58:18 +09:00
Junegunn Choi
ae87f6548a GoLint 2015-08-02 23:54:53 +09:00
Junegunn Choi
0ea66329b8 Performance tuning - eager rune array conversion
> 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
2015-08-02 14:00:18 +09:00
Junegunn Choi
dea60b11bc Only consider the lengths of the relevant parts when --nth is set 2015-08-01 23:13:24 +09:00
Junegunn Choi
6c99cc1700 Add bind action for executing arbitrary command (#265)
e.g. fzf --bind "ctrl-m:execute(less {})"
     fzf --bind "ctrl-t:execute[tmux new-window -d 'vim {}']"
2015-06-14 12:25:08 +09:00
Junegunn Choi
fdbfe36c0b Color customization (#245) 2015-06-03 01:46:03 +09:00
Junegunn Choi
2fe1e28220 Improvements in performance and memory usage
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.
2015-04-17 22:23:52 +09:00
Junegunn Choi
b8904a8c3e Add --tiebreak option for customizing sort criteria
Close #191
2015-04-16 14:19:28 +09:00
Junegunn Choi
d988f3fa50 Retain ANSI background color 2015-03-29 03:12:55 +09:00
Junegunn Choi
b431e227da Code cleanup 2015-03-22 16:05:54 +09:00
Junegunn Choi
e70a2a5817 Add support for ANSI color codes 2015-03-19 01:59:14 +09:00
Junegunn Choi
c1aa5c5f33 Add --tac option and reverse display order of --no-sort
DISCLAIMER: This is a backward incompatible change
2015-02-26 01:42:15 +09:00
Junegunn Choi
7a2bc2cada Lint 2015-01-12 03:18:40 +09:00
Junegunn Choi
9dbf6b02d2 Fix race conditions
- Wait for completions of goroutines when cancelling a search
- Remove shared access to rank field of Item
2015-01-11 23:49:12 +09:00
Junegunn Choi
ca4bdfb4bd Fix Transform result cache to speed up subsequent searches 2015-01-11 01:53:51 +09:00
Junegunn Choi
b7bb100810 Improve response time by only looking at top-N items 2015-01-10 01:06:18 +09:00
Junegunn Choi
aa05bf5206 Reduce memory footprint 2015-01-09 10:42:12 +09:00
Junegunn Choi
f3177305d5 Rewrite fzf in Go 2015-01-04 00:37:29 +09:00