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patch 9.1.1046: fuzzymatching doesn't prefer matching camelcase

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Problem:  fuzzymatching doesn't prefer matching camelcase
          (Tomasz N)
Solution: Add extra score when case matches (glepnir)

fixes: #16434
closes: #16439

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
glepnir
2025-01-21 22:33:13 +01:00
committed by Christian Brabandt
parent c04334c33f
commit 9dfc7e5e61
3 changed files with 102 additions and 30 deletions
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70
src/search.c
View File

@@ -42,7 +42,7 @@ static void find_mps_values(int *initc, int *findc, int *backwards, int switchit
static int is_zero_width(char_u *pattern, size_t patternlen, int move, pos_T *cur, int direction);
static void cmdline_search_stat(int dirc, pos_T *pos, pos_T *cursor_pos, int show_top_bot_msg, char_u *msgbuf, size_t msgbuflen, int recompute, int maxcount, long timeout);
static void update_search_stat(int dirc, pos_T *pos, pos_T *cursor_pos, searchstat_T *stat, int recompute, int maxcount, long timeout);
static int fuzzy_match_compute_score(char_u *str, int strSz, int_u *matches, int numMatches);
static int fuzzy_match_compute_score(char_u *fuzpat, char_u *str, int strSz, int_u *matches, int numMatches);
static int fuzzy_match_recursive(char_u *fuzpat, char_u *str, int_u strIdx, int *outScore, char_u *strBegin, int strLen, int_u *srcMatches, int_u *matches, int maxMatches, int nextMatch, int *recursionCount);
#if defined(FEAT_EVAL) || defined(FEAT_PROTO)
static int fuzzy_match_item_compare(const void *s1, const void *s2);
@@ -4355,6 +4355,10 @@ typedef struct
#define CAMEL_BONUS 30
// bonus if the first letter is matched
#define FIRST_LETTER_BONUS 15
// bonus if exact match
#define EXACT_MATCH_BONUS 100
// bonus if case match when no ignorecase
#define CASE_MATCH_BONUS 25
// penalty applied for every letter in str before the first match
#define LEADING_LETTER_PENALTY (-5)
// maximum penalty for leading letters
@@ -4374,6 +4378,7 @@ typedef struct
*/
static int
fuzzy_match_compute_score(
char_u *fuzpat,
char_u *str,
int strSz,
int_u *matches,
@@ -4386,6 +4391,11 @@ fuzzy_match_compute_score(
char_u *p = str;
int_u sidx = 0;
int is_exact_match = TRUE;
char_u *orig_fuzpat = fuzpat - numMatches;
char_u *curpat = orig_fuzpat;
int pat_idx = 0;
// Track consecutive camel case matches
int consecutive_camel = 0;
// Initialize score
score = 100;
@@ -4404,6 +4414,8 @@ fuzzy_match_compute_score(
for (i = 0; i < numMatches; ++i)
{
int_u currIdx = matches[i];
int curr;
int is_camel = FALSE;
if (i > 0)
{
@@ -4413,15 +4425,18 @@ fuzzy_match_compute_score(
if (currIdx == (prevIdx + 1))
score += SEQUENTIAL_BONUS;
else
{
score += GAP_PENALTY * (currIdx - prevIdx);
// Reset consecutive camel count on gap
consecutive_camel = 0;
}
}
// Check for bonuses based on neighbor character value
if (currIdx > 0)
{
// Camel case
int neighbor = ' ';
int curr;
int neighbor = ' ';
if (has_mbyte)
{
@@ -4439,8 +4454,18 @@ fuzzy_match_compute_score(
curr = str[currIdx];
}
// Enhanced camel case scoring
if (vim_islower(neighbor) && vim_isupper(curr))
score += CAMEL_BONUS;
{
score += CAMEL_BONUS * 2; // Double the camel case bonus
is_camel = TRUE;
consecutive_camel++;
// Additional bonus for consecutive camel
if (consecutive_camel > 1)
score += CAMEL_BONUS;
}
else
consecutive_camel = 0;
// Bonus if the match follows a separator character
if (neighbor == '/' || neighbor == '\\')
@@ -4452,14 +4477,47 @@ fuzzy_match_compute_score(
{
// First letter
score += FIRST_LETTER_BONUS;
curr = has_mbyte ? (*mb_ptr2char)(p) : str[currIdx];
}
// Case matching bonus
if (vim_isalpha(curr))
{
while (pat_idx < i && *curpat)
{
if (has_mbyte)
MB_PTR_ADV(curpat);
else
curpat++;
pat_idx++;
}
if (has_mbyte)
{
if (curr == (*mb_ptr2char)(curpat))
{
score += CASE_MATCH_BONUS;
// Extra bonus for exact case match in camel
if (is_camel)
score += CASE_MATCH_BONUS / 2;
}
}
else if (curr == *curpat)
{
score += CASE_MATCH_BONUS;
if (is_camel)
score += CASE_MATCH_BONUS / 2;
}
}
// Check exact match condition
if (currIdx != (int_u)i)
is_exact_match = FALSE;
}
// Boost score for exact matches
if (is_exact_match && numMatches == strSz)
score += 100;
score += EXACT_MATCH_BONUS;
return score;
}
@@ -4563,7 +4621,7 @@ fuzzy_match_recursive(
// Calculate score
if (matched)
*outScore = fuzzy_match_compute_score(strBegin, strLen, matches,
*outScore = fuzzy_match_compute_score(fuzpat, strBegin, strLen, matches,
nextMatch);
// Return best result

60
src/testdir/test_matchfuzzy.vim
View File

@@ -96,15 +96,15 @@ endfunc
" Test for the matchfuzzypos() function
func Test_matchfuzzypos()
call assert_equal([['curl', 'world'], [[2,3], [2,3]], [128, 127]], matchfuzzypos(['world', 'curl'], 'rl'))
call assert_equal([['curl', 'world'], [[2,3], [2,3]], [128, 127]], matchfuzzypos(['world', 'one', 'curl'], 'rl'))
call assert_equal([['curl', 'world'], [[2,3], [2,3]], [178, 177]], matchfuzzypos(['world', 'curl'], 'rl'))
call assert_equal([['curl', 'world'], [[2,3], [2,3]], [178, 177]], matchfuzzypos(['world', 'one', 'curl'], 'rl'))
call assert_equal([['hello', 'hello world hello world'],
\ [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [375, 257]],
\ [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [500, 382]],
\ matchfuzzypos(['hello world hello world', 'hello', 'world'], 'hello'))
call assert_equal([['aaaaaaa'], [[0, 1, 2]], [191]], matchfuzzypos(['aaaaaaa'], 'aaa'))
call assert_equal([['a b'], [[0, 3]], [219]], matchfuzzypos(['a b'], 'a b'))
call assert_equal([['a b'], [[0, 3]], [219]], matchfuzzypos(['a b'], 'a b'))
call assert_equal([['a b'], [[0]], [112]], matchfuzzypos(['a b'], ' a '))
call assert_equal([['aaaaaaa'], [[0, 1, 2]], [266]], matchfuzzypos(['aaaaaaa'], 'aaa'))
call assert_equal([['a b'], [[0, 3]], [269]], matchfuzzypos(['a b'], 'a b'))
call assert_equal([['a b'], [[0, 3]], [269]], matchfuzzypos(['a b'], 'a b'))
call assert_equal([['a b'], [[0]], [137]], matchfuzzypos(['a b'], ' a '))
call assert_equal([[], [], []], matchfuzzypos(['a b'], ' '))
call assert_equal([[], [], []], matchfuzzypos(['world', 'curl'], 'ab'))
let x = matchfuzzypos([repeat('a', 256)], repeat('a', 256))
@@ -113,33 +113,33 @@ func Test_matchfuzzypos()
call assert_equal([[], [], []], matchfuzzypos([], 'abc'))
" match in a long string
call assert_equal([[repeat('x', 300) .. 'abc'], [[300, 301, 302]], [-135]],
call assert_equal([[repeat('x', 300) .. 'abc'], [[300, 301, 302]], [-60]],
\ matchfuzzypos([repeat('x', 300) .. 'abc'], 'abc'))
" preference for camel case match
call assert_equal([['xabcxxaBc'], [[6, 7, 8]], [189]], matchfuzzypos(['xabcxxaBc'], 'abc'))
call assert_equal([['xabcxxaBc'], [[6, 7, 8]], [269]], matchfuzzypos(['xabcxxaBc'], 'abc'))
" preference for match after a separator (_ or space)
call assert_equal([['xabx_ab'], [[5, 6]], [145]], matchfuzzypos(['xabx_ab'], 'ab'))
call assert_equal([['xabx_ab'], [[5, 6]], [195]], matchfuzzypos(['xabx_ab'], 'ab'))
" preference for leading letter match
call assert_equal([['abcxabc'], [[0, 1]], [150]], matchfuzzypos(['abcxabc'], 'ab'))
call assert_equal([['abcxabc'], [[0, 1]], [200]], matchfuzzypos(['abcxabc'], 'ab'))
" preference for sequential match
call assert_equal([['aobncedone'], [[7, 8, 9]], [158]], matchfuzzypos(['aobncedone'], 'one'))
call assert_equal([['aobncedone'], [[7, 8, 9]], [233]], matchfuzzypos(['aobncedone'], 'one'))
" best recursive match
call assert_equal([['xoone'], [[2, 3, 4]], [168]], matchfuzzypos(['xoone'], 'one'))
call assert_equal([['xoone'], [[2, 3, 4]], [243]], matchfuzzypos(['xoone'], 'one'))
" match multiple words (separated by space)
call assert_equal([['foo bar baz'], [[8, 9, 10, 0, 1, 2]], [369]], ['foo bar baz', 'foo', 'foo bar', 'baz bar']->matchfuzzypos('baz foo'))
call assert_equal([['foo bar baz'], [[8, 9, 10, 0, 1, 2]], [519]], ['foo bar baz', 'foo', 'foo bar', 'baz bar']->matchfuzzypos('baz foo'))
call assert_equal([[], [], []], ['foo bar baz', 'foo', 'foo bar', 'baz bar']->matchfuzzypos('baz foo', {'matchseq': 1}))
call assert_equal([['foo bar baz'], [[0, 1, 2, 8, 9, 10]], [369]], ['foo bar baz', 'foo', 'foo bar', 'baz bar']->matchfuzzypos('foo baz'))
call assert_equal([['foo bar baz'], [[0, 1, 2, 3, 4, 5, 10]], [326]], ['foo bar baz', 'foo', 'foo bar', 'baz bar']->matchfuzzypos('foo baz', {'matchseq': 1}))
call assert_equal([['foo bar baz'], [[0, 1, 2, 8, 9, 10]], [519]], ['foo bar baz', 'foo', 'foo bar', 'baz bar']->matchfuzzypos('foo baz'))
call assert_equal([['foo bar baz'], [[0, 1, 2, 3, 4, 5, 10]], [476]], ['foo bar baz', 'foo', 'foo bar', 'baz bar']->matchfuzzypos('foo baz', {'matchseq': 1}))
call assert_equal([[], [], []], ['foo bar baz', 'foo', 'foo bar', 'baz bar']->matchfuzzypos('one two'))
call assert_equal([[], [], []], ['foo bar']->matchfuzzypos(" \t "))
call assert_equal([['grace'], [[1, 2, 3, 4, 2, 3, 4, 0, 1, 2, 3, 4]], [757]], ['grace']->matchfuzzypos('race ace grace'))
call assert_equal([['grace'], [[1, 2, 3, 4, 2, 3, 4, 0, 1, 2, 3, 4]], [1057]], ['grace']->matchfuzzypos('race ace grace'))
let l = [{'id' : 5, 'val' : 'crayon'}, {'id' : 6, 'val' : 'camera'}]
call assert_equal([[{'id' : 6, 'val' : 'camera'}], [[0, 1, 2]], [192]],
call assert_equal([[{'id' : 6, 'val' : 'camera'}], [[0, 1, 2]], [267]],
\ matchfuzzypos(l, 'cam', {'text_cb' : {v -> v.val}}))
call assert_equal([[{'id' : 6, 'val' : 'camera'}], [[0, 1, 2]], [192]],
call assert_equal([[{'id' : 6, 'val' : 'camera'}], [[0, 1, 2]], [267]],
\ matchfuzzypos(l, 'cam', {'key' : 'val'}))
call assert_equal([[], [], []], matchfuzzypos(l, 'day', {'text_cb' : {v -> v.val}}))
call assert_equal([[], [], []], matchfuzzypos(l, 'day', {'key' : 'val'}))
@@ -154,6 +154,18 @@ func Test_matchfuzzypos()
call assert_fails("let x = matchfuzzypos(l, 'foo', {'key' : test_null_string()})", 'E475:')
call assert_fails("let x = matchfuzzypos(l, 'foo', {'text_cb' : test_null_function()})", 'E475:')
" case match
call assert_equal([['Match', 'match'], [[0, 1], [0, 1]], [202, 177]], matchfuzzypos(['match', 'Match'], 'Ma'))
call assert_equal([['match', 'Match'], [[0, 1], [0, 1]], [202, 177]], matchfuzzypos(['Match', 'match'], 'ma'))
" CamelCase has high weight even case match
call assert_equal(['MyTestCase', 'mytestcase'], matchfuzzy(['mytestcase', 'MyTestCase'], 'mtc'))
call assert_equal(['MyTestCase', 'mytestcase'], matchfuzzy(['MyTestCase', 'mytestcase'], 'mtc'))
call assert_equal(['MyTest', 'Mytest', 'mytest', ],matchfuzzy(['Mytest', 'mytest', 'MyTest'], 'MyT'))
call assert_equal(['CamelCaseMatchIngAlg', 'camelCaseMatchingAlg', 'camelcasematchingalg'],
\ matchfuzzy(['CamelCaseMatchIngAlg', 'camelcasematchingalg', 'camelCaseMatchingAlg'], 'CamelCase'))
call assert_equal(['CamelCaseMatchIngAlg', 'camelCaseMatchingAlg', 'camelcasematchingalg'],
\ matchfuzzy(['CamelCaseMatchIngAlg', 'camelcasematchingalg', 'camelCaseMatchingAlg'], 'CamelcaseM'))
let l = [{'id' : 5, 'name' : 'foo'}, {'id' : 6, 'name' : []}, {'id' : 7}]
call assert_fails("let x = matchfuzzypos(l, 'foo', {'key' : 'name'})", 'E730:')
endfunc
@@ -204,12 +216,12 @@ func Test_matchfuzzypos_mbyte()
call assert_equal([['ンヹㄇヺヴ'], [[1, 3]], [88]], matchfuzzypos(['ンヹㄇヺヴ'], 'ヹヺ'))
" reverse the order of characters
call assert_equal([[], [], []], matchfuzzypos(['ンヹㄇヺヴ'], 'ヺヹ'))
call assert_equal([['αβΩxxx', 'xαxβxΩx'], [[0, 1, 2], [1, 3, 5]], [222, 113]],
call assert_equal([['αβΩxxx', 'xαxβxΩx'], [[0, 1, 2], [1, 3, 5]], [252, 143]],
\ matchfuzzypos(['αβΩxxx', 'xαxβxΩx'], 'αβΩ'))
call assert_equal([['ππbbππ', 'πππbbbπππ', 'ππππbbbbππππ', 'πbπ'],
\ [[0, 1], [0, 1], [0, 1], [0, 2]], [151, 148, 145, 110]],
\ [[0, 1], [0, 1], [0, 1], [0, 2]], [176, 173, 170, 135]],
\ matchfuzzypos(['πbπ', 'ππbbππ', 'πππbbbπππ', 'ππππbbbbππππ'], 'ππ'))
call assert_equal([['ααααααα'], [[0, 1, 2]], [191]],
call assert_equal([['ααααααα'], [[0, 1, 2]], [216]],
\ matchfuzzypos(['ααααααα'], 'ααα'))
call assert_equal([[], [], []], matchfuzzypos(['ンヹㄇ', 'ŗŝţ'], 'fffifl'))
@@ -222,10 +234,10 @@ func Test_matchfuzzypos_mbyte()
call assert_equal([[], [], []], ['세 마리의 작은 돼지', '마리의', '마리의 작은', '작은 돼지']->matchfuzzypos('파란 하늘'))
" match in a long string
call assert_equal([[repeat('ぶ', 300) .. 'ẼẼẼ'], [[300, 301, 302]], [-135]],
call assert_equal([[repeat('ぶ', 300) .. 'ẼẼẼ'], [[300, 301, 302]], [-110]],
\ matchfuzzypos([repeat('ぶ', 300) .. 'ẼẼẼ'], 'ẼẼẼ'))
" preference for camel case match
call assert_equal([['xѳѵҁxxѳѴҁ'], [[6, 7, 8]], [189]], matchfuzzypos(['xѳѵҁxxѳѴҁ'], 'ѳѵҁ'))
call assert_equal([['xѳѵҁxxѳѴҁ'], [[6, 7, 8]], [219]], matchfuzzypos(['xѳѵҁxxѳѴҁ'], 'ѳѵҁ'))
" preference for match after a separator (_ or space)
call assert_equal([['xちだx_ちだ'], [[5, 6]], [145]], matchfuzzypos(['xちだx_ちだ'], 'ちだ'))
" preference for leading letter match

2
src/version.c
View File

@@ -704,6 +704,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1046,
/**/
1045,
/**/