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Add --scheme=[default|path|history] option to choose scoring scheme

Close #2909
Close #2930
This commit is contained in:
Junegunn Choi 2022-08-28 22:16:57 +09:00
parent 4bef330ce1
commit 6fb41a202a
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9 changed files with 106 additions and 36 deletions

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@ -1,8 +1,18 @@
CHANGELOG
=========
0.32.2
0.33.0
------
- Added `--scheme=[default|path|history]` option to choose scoring scheme
- (Experimental)
- We updated the scoring algorithm in 0.32.0, however we have learned that
this new scheme (`default`) is not always giving the optimal result
- `path`: Additional bonus point is only given the the characters after
path separator. You might want to choose this scheme if you have many
files with spaces in their paths.
- `history`: No additional bonus points are given so that we give more
weight to the chronological ordering. This is equivalent to the scoring
scheme before 0.32.0. This also sets `--tiebreak=index`.
- ANSI color sequences with colon delimiters are now supported.
```sh
printf "\e[38;5;208mOption 1\e[m\nOption 2" | fzf --ansi

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@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
..
.TH fzf-tmux 1 "Aug 2022" "fzf 0.32.1" "fzf-tmux - open fzf in tmux split pane"
.TH fzf-tmux 1 "Aug 2022" "fzf 0.33.0" "fzf-tmux - open fzf in tmux split pane"
.SH NAME
fzf-tmux - open fzf in tmux split pane

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@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
..
.TH fzf 1 "Aug 2022" "fzf 0.32.2" "fzf - a command-line fuzzy finder"
.TH fzf 1 "Aug 2022" "fzf 0.33.0" "fzf - a command-line fuzzy finder"
.SH NAME
fzf - a command-line fuzzy finder
@ -51,6 +51,18 @@ Case-sensitive match
.B "--literal"
Do not normalize latin script letters for matching.
.TP
.BI "--scheme=" SCHEME
Choose scoring scheme tailored for different types of input.
.br
.BR default " Generic scoring scheme designed to work well with any type of input"
.br
.BR path " Scoring scheme for paths (additional bonus point only after path separator)
.br
.BR history " Scoring scheme for command history (no additional bonus points).
Sets \fB--tiebreak=index\fR as well.
.br
.TP
.BI "--algo=" TYPE
Fuzzy matching algorithm (default: v2)

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@ -50,7 +50,7 @@ __fzf_cd__() {
__fzf_history__() {
local output opts script
opts="--height ${FZF_TMUX_HEIGHT:-40%} --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS +m --read0"
opts="--height ${FZF_TMUX_HEIGHT:-40%} --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS -n2..,.. --scheme=history --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS +m --read0"
script='BEGIN { getc; $/ = "\n\t"; $HISTCOUNT = $ENV{last_hist} + 1 } s/^[ *]//; print $HISTCOUNT - $. . "\t$_" if !$seen{$_}++'
output=$(
builtin fc -lnr -2147483648 |

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@ -53,7 +53,7 @@ function fzf_key_bindings
function fzf-history-widget -d "Show command history"
test -n "$FZF_TMUX_HEIGHT"; or set FZF_TMUX_HEIGHT 40%
begin
set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT $FZF_DEFAULT_OPTS --tiebreak=index --bind=ctrl-r:toggle-sort,ctrl-z:ignore $FZF_CTRL_R_OPTS +m"
set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT $FZF_DEFAULT_OPTS --scheme=history --bind=ctrl-r:toggle-sort,ctrl-z:ignore $FZF_CTRL_R_OPTS +m"
set -l FISH_MAJOR (echo $version | cut -f1 -d.)
set -l FISH_MINOR (echo $version | cut -f2 -d.)

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@ -98,7 +98,7 @@ fzf-history-widget() {
local selected num
setopt localoptions noglobsubst noposixbuiltins pipefail no_aliases 2> /dev/null
selected=( $(fc -rl 1 | awk '{ cmd=$0; sub(/^[ \t]*[0-9]+\**[ \t]+/, "", cmd); if (!seen[cmd]++) print $0 }' |
FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort,ctrl-z:ignore $FZF_CTRL_R_OPTS --query=${(qqq)LBUFFER} +m" $(__fzfcmd)) )
FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS -n2..,.. --scheme=history --bind=ctrl-r:toggle-sort,ctrl-z:ignore $FZF_CTRL_R_OPTS --query=${(qqq)LBUFFER} +m" $(__fzfcmd)) )
local ret=$?
if [ -n "$selected" ]; then
num=$selected[1]

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@ -80,6 +80,7 @@ Scoring criteria
import (
"bytes"
"fmt"
"os"
"strings"
"unicode"
"unicode/utf8"
@ -89,7 +90,8 @@ import (
var DEBUG bool
const delimiterChars = "/,:;|"
var delimiterChars = "/,:;|"
const whiteChars = " \t\n\v\f\r\x85\xA0"
func indexAt(index int, max int, forward bool) int {
@ -120,12 +122,6 @@ const (
// in web2 dictionary and my file system.
bonusBoundary = scoreMatch / 2
// Extra bonus for word boundary after whitespace character or beginning of the string
bonusBoundaryWhite = bonusBoundary + 2
// Extra bonus for word boundary after slash, colon, semi-colon, and comma
bonusBoundaryDelimiter = bonusBoundary + 1
// Although bonus point for non-word characters is non-contextual, we need it
// for computing bonus points for consecutive chunks starting with a non-word
// character.
@ -149,6 +145,16 @@ const (
bonusFirstCharMultiplier = 2
)
var (
// Extra bonus for word boundary after whitespace character or beginning of the string
bonusBoundaryWhite int16 = bonusBoundary + 2
// Extra bonus for word boundary after slash, colon, semi-colon, and comma
bonusBoundaryDelimiter int16 = bonusBoundary + 1
initialCharClass charClass = charWhite
)
type charClass int
const (
@ -161,6 +167,29 @@ const (
charNumber
)
func Init(scheme string) bool {
switch scheme {
case "default":
bonusBoundaryWhite = bonusBoundary + 2
bonusBoundaryDelimiter = bonusBoundary + 1
case "path":
bonusBoundaryWhite = bonusBoundary
bonusBoundaryDelimiter = bonusBoundary + 1
if os.PathSeparator == '/' {
delimiterChars = "/"
} else {
delimiterChars = string([]rune{os.PathSeparator, '/'})
}
initialCharClass = charDelimiter
case "history":
bonusBoundaryWhite = bonusBoundary
bonusBoundaryDelimiter = bonusBoundary
default:
return false
}
return true
}
func posArray(withPos bool, len int) *[]int {
if withPos {
pos := make([]int, 0, len)
@ -407,7 +436,7 @@ func FuzzyMatchV2(caseSensitive bool, normalize bool, forward bool, input *util.
// Phase 2. Calculate bonus for each point
maxScore, maxScorePos := int16(0), 0
pidx, lastIdx := 0, 0
pchar0, pchar, prevH0, prevClass, inGap := pattern[0], pattern[0], int16(0), charWhite, false
pchar0, pchar, prevH0, prevClass, inGap := pattern[0], pattern[0], int16(0), initialCharClass, false
Tsub := T[idx:]
H0sub, C0sub, Bsub := H0[idx:][:len(Tsub)], C0[idx:][:len(Tsub)], B[idx:][:len(Tsub)]
for off, char := range Tsub {
@ -910,8 +939,8 @@ func EqualMatch(caseSensitive bool, normalize bool, forward bool, text *util.Cha
match = runesStr == string(pattern)
}
if match {
return Result{trimmedLen, trimmedLen + lenPattern, (scoreMatch+bonusBoundaryWhite)*lenPattern +
(bonusFirstCharMultiplier-1)*bonusBoundaryWhite}, nil
return Result{trimmedLen, trimmedLen + lenPattern, (scoreMatch+int(bonusBoundaryWhite))*lenPattern +
(bonusFirstCharMultiplier-1)*int(bonusBoundaryWhite)}, nil
}
return Result{-1, -1, 0}, nil
}

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@ -45,29 +45,29 @@ func TestFuzzyMatch(t *testing.T) {
assertMatch(t, fn, false, forward, "fooBarbaz1", "oBZ", 2, 9,
scoreMatch*3+bonusCamel123+scoreGapStart+scoreGapExtension*3)
assertMatch(t, fn, false, forward, "foo bar baz", "fbb", 0, 9,
scoreMatch*3+bonusBoundaryWhite*bonusFirstCharMultiplier+
bonusBoundaryWhite*2+2*scoreGapStart+4*scoreGapExtension)
scoreMatch*3+int(bonusBoundaryWhite)*bonusFirstCharMultiplier+
int(bonusBoundaryWhite)*2+2*scoreGapStart+4*scoreGapExtension)
assertMatch(t, fn, false, forward, "/AutomatorDocument.icns", "rdoc", 9, 13,
scoreMatch*4+bonusCamel123+bonusConsecutive*2)
assertMatch(t, fn, false, forward, "/man1/zshcompctl.1", "zshc", 6, 10,
scoreMatch*4+bonusBoundaryDelimiter*bonusFirstCharMultiplier+bonusBoundaryDelimiter*3)
scoreMatch*4+int(bonusBoundaryDelimiter)*bonusFirstCharMultiplier+int(bonusBoundaryDelimiter)*3)
assertMatch(t, fn, false, forward, "/.oh-my-zsh/cache", "zshc", 8, 13,
scoreMatch*4+bonusBoundary*bonusFirstCharMultiplier+bonusBoundary*2+scoreGapStart+bonusBoundaryDelimiter)
scoreMatch*4+bonusBoundary*bonusFirstCharMultiplier+bonusBoundary*2+scoreGapStart+int(bonusBoundaryDelimiter))
assertMatch(t, fn, false, forward, "ab0123 456", "12356", 3, 10,
scoreMatch*5+bonusConsecutive*3+scoreGapStart+scoreGapExtension)
assertMatch(t, fn, false, forward, "abc123 456", "12356", 3, 10,
scoreMatch*5+bonusCamel123*bonusFirstCharMultiplier+bonusCamel123*2+bonusConsecutive+scoreGapStart+scoreGapExtension)
assertMatch(t, fn, false, forward, "foo/bar/baz", "fbb", 0, 9,
scoreMatch*3+bonusBoundaryWhite*bonusFirstCharMultiplier+
bonusBoundaryDelimiter*2+2*scoreGapStart+4*scoreGapExtension)
scoreMatch*3+int(bonusBoundaryWhite)*bonusFirstCharMultiplier+
int(bonusBoundaryDelimiter)*2+2*scoreGapStart+4*scoreGapExtension)
assertMatch(t, fn, false, forward, "fooBarBaz", "fbb", 0, 7,
scoreMatch*3+bonusBoundaryWhite*bonusFirstCharMultiplier+
scoreMatch*3+int(bonusBoundaryWhite)*bonusFirstCharMultiplier+
bonusCamel123*2+2*scoreGapStart+2*scoreGapExtension)
assertMatch(t, fn, false, forward, "foo barbaz", "fbb", 0, 8,
scoreMatch*3+bonusBoundaryWhite*bonusFirstCharMultiplier+bonusBoundaryWhite+
scoreMatch*3+int(bonusBoundaryWhite)*bonusFirstCharMultiplier+int(bonusBoundaryWhite)+
scoreGapStart*2+scoreGapExtension*3)
assertMatch(t, fn, false, forward, "fooBar Baz", "foob", 0, 4,
scoreMatch*4+bonusBoundaryWhite*bonusFirstCharMultiplier+bonusBoundaryWhite*3)
scoreMatch*4+int(bonusBoundaryWhite)*bonusFirstCharMultiplier+int(bonusBoundaryWhite)*3)
assertMatch(t, fn, false, forward, "xFoo-Bar Baz", "foo-b", 1, 6,
scoreMatch*5+bonusCamel123*bonusFirstCharMultiplier+bonusCamel123*2+
bonusNonWord+bonusBoundary)
@ -75,14 +75,14 @@ func TestFuzzyMatch(t *testing.T) {
assertMatch(t, fn, true, forward, "fooBarbaz", "oBz", 2, 9,
scoreMatch*3+bonusCamel123+scoreGapStart+scoreGapExtension*3)
assertMatch(t, fn, true, forward, "Foo/Bar/Baz", "FBB", 0, 9,
scoreMatch*3+bonusBoundaryWhite*bonusFirstCharMultiplier+bonusBoundaryDelimiter*2+
scoreMatch*3+int(bonusBoundaryWhite)*bonusFirstCharMultiplier+int(bonusBoundaryDelimiter)*2+
scoreGapStart*2+scoreGapExtension*4)
assertMatch(t, fn, true, forward, "FooBarBaz", "FBB", 0, 7,
scoreMatch*3+bonusBoundaryWhite*bonusFirstCharMultiplier+bonusCamel123*2+
scoreMatch*3+int(bonusBoundaryWhite)*bonusFirstCharMultiplier+bonusCamel123*2+
scoreGapStart*2+scoreGapExtension*2)
assertMatch(t, fn, true, forward, "FooBar Baz", "FooB", 0, 4,
scoreMatch*4+bonusBoundaryWhite*bonusFirstCharMultiplier+bonusBoundaryWhite*2+
util.Max(bonusCamel123, bonusBoundaryWhite))
scoreMatch*4+int(bonusBoundaryWhite)*bonusFirstCharMultiplier+int(bonusBoundaryWhite)*2+
util.Max(bonusCamel123, int(bonusBoundaryWhite)))
// Consecutive bonus updated
assertMatch(t, fn, true, forward, "foo-bar", "o-ba", 2, 6,
@ -98,10 +98,10 @@ func TestFuzzyMatch(t *testing.T) {
func TestFuzzyMatchBackward(t *testing.T) {
assertMatch(t, FuzzyMatchV1, false, true, "foobar fb", "fb", 0, 4,
scoreMatch*2+bonusBoundaryWhite*bonusFirstCharMultiplier+
scoreMatch*2+int(bonusBoundaryWhite)*bonusFirstCharMultiplier+
scoreGapStart+scoreGapExtension)
assertMatch(t, FuzzyMatchV1, false, false, "foobar fb", "fb", 7, 9,
scoreMatch*2+bonusBoundaryWhite*bonusFirstCharMultiplier+bonusBoundaryWhite)
scoreMatch*2+int(bonusBoundaryWhite)*bonusFirstCharMultiplier+int(bonusBoundaryWhite))
}
func TestExactMatchNaive(t *testing.T) {
@ -114,9 +114,9 @@ func TestExactMatchNaive(t *testing.T) {
assertMatch(t, ExactMatchNaive, false, dir, "/AutomatorDocument.icns", "rdoc", 9, 13,
scoreMatch*4+bonusCamel123+bonusConsecutive*2)
assertMatch(t, ExactMatchNaive, false, dir, "/man1/zshcompctl.1", "zshc", 6, 10,
scoreMatch*4+bonusBoundaryDelimiter*(bonusFirstCharMultiplier+3))
scoreMatch*4+int(bonusBoundaryDelimiter)*(bonusFirstCharMultiplier+3))
assertMatch(t, ExactMatchNaive, false, dir, "/.oh-my-zsh/cache", "zsh/c", 8, 13,
scoreMatch*5+bonusBoundary*(bonusFirstCharMultiplier+3)+bonusBoundaryDelimiter)
scoreMatch*5+bonusBoundary*(bonusFirstCharMultiplier+3)+int(bonusBoundaryDelimiter))
}
}
@ -128,7 +128,7 @@ func TestExactMatchNaiveBackward(t *testing.T) {
}
func TestPrefixMatch(t *testing.T) {
score := scoreMatch*3 + bonusBoundaryWhite*bonusFirstCharMultiplier + bonusBoundaryWhite*2
score := scoreMatch*3 + int(bonusBoundaryWhite)*bonusFirstCharMultiplier + int(bonusBoundaryWhite)*2
for _, dir := range []bool{true, false} {
assertMatch(t, PrefixMatch, true, dir, "fooBarbaz", "Foo", -1, -1, 0)
@ -159,7 +159,7 @@ func TestSuffixMatch(t *testing.T) {
// Only when the pattern doesn't end with a space
assertMatch(t, SuffixMatch, false, dir, "fooBarbaz ", "baz ", 6, 10,
scoreMatch*4+bonusConsecutive*2+bonusBoundaryWhite)
scoreMatch*4+bonusConsecutive*2+int(bonusBoundaryWhite))
}
}

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@ -21,9 +21,9 @@ const usage = `usage: fzf [options]
-x, --extended Extended-search mode
(enabled by default; +x or --no-extended to disable)
-e, --exact Enable Exact-match
--algo=TYPE Fuzzy matching algorithm: [v1|v2] (default: v2)
-i Case-insensitive match (default: smart-case match)
+i Case-sensitive match
--scheme=SCHEME Scoring scheme [default|path|history]
--literal Do not normalize latin script letters before matching
-n, --nth=N[,..] Comma-separated list of field index expressions
for limiting search scope. Each can be a non-zero
@ -194,6 +194,7 @@ func (a previewOpts) sameContentLayout(b previewOpts) bool {
type Options struct {
Fuzzy bool
FuzzyAlgo algo.Algo
Scheme string
Extended bool
Phony bool
Case Case
@ -259,6 +260,7 @@ func defaultOptions() *Options {
return &Options{
Fuzzy: true,
FuzzyAlgo: algo.FuzzyMatchV2,
Scheme: "default",
Extended: true,
Phony: false,
Case: CaseSmart,
@ -441,6 +443,15 @@ func parseAlgo(str string) algo.Algo {
return algo.FuzzyMatchV2
}
func processScheme(opts *Options) {
if !algo.Init(opts.Scheme) {
errorExit("invalid scoring scheme (expected: default|path|history)")
}
if opts.Scheme == "history" {
opts.Criteria = []criterion{byScore}
}
}
func parseBorder(str string, optional bool) tui.BorderShape {
switch str {
case "rounded":
@ -1345,6 +1356,8 @@ func parseOptions(opts *Options, allArgs []string) {
opts.Normalize = true
case "--algo":
opts.FuzzyAlgo = parseAlgo(nextString(allArgs, &i, "algorithm required (v1|v2)"))
case "--scheme":
opts.Scheme = strings.ToLower(nextString(allArgs, &i, "scoring scheme required (default|path|history)"))
case "--expect":
for k, v := range parseKeyChords(nextString(allArgs, &i, "key names required"), "key names required") {
opts.Expect[k] = v
@ -1551,6 +1564,8 @@ func parseOptions(opts *Options, allArgs []string) {
default:
if match, value := optString(arg, "--algo="); match {
opts.FuzzyAlgo = parseAlgo(value)
} else if match, value := optString(arg, "--scheme="); match {
opts.Scheme = strings.ToLower(value)
} else if match, value := optString(arg, "-q", "--query="); match {
opts.Query = value
} else if match, value := optString(arg, "-f", "--filter="); match {
@ -1752,6 +1767,10 @@ func postProcessOptions(opts *Options) {
theme.Cursor = boldify(theme.Cursor)
theme.Spinner = boldify(theme.Spinner)
}
if opts.Scheme != "default" {
processScheme(opts)
}
}
func expectsArbitraryString(opt string) bool {