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patch 8.2.1665: cannot do fuzzy string matching

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Problem:    Cannot do fuzzy string matching.
Solution:   Add matchfuzzy(). (Yegappan Lakshmanan, closes #6932)
This commit is contained in:
Bram Moolenaar
2020-09-11 22:25:15 +02:00
parent c2c8205634
commit 635414dd2f
7 changed files with 393 additions and 0 deletions
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24
runtime/doc/eval.txt
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@@ -2641,6 +2641,7 @@ matcharg({nr}) List arguments of |:match|
matchdelete({id} [, {win}]) Number delete match identified by {id}
matchend({expr}, {pat} [, {start} [, {count}]])
Number position where {pat} ends in {expr}
matchfuzzy({list}, {str}) List fuzzy match {str} in {list}
matchlist({expr}, {pat} [, {start} [, {count}]])
List match and submatches of {pat} in {expr}
matchstr({expr}, {pat} [, {start} [, {count}]])
@@ -7307,6 +7308,29 @@ matchend({expr}, {pat} [, {start} [, {count}]]) *matchend()*
Can also be used as a |method|: >
GetText()->matchend('word')
matchfuzzy({list}, {str}) *matchfuzzy()*
Returns a list with all the strings in {list} that fuzzy
match {str}. The strings in the returned list are sorted
based on the matching score. {str} is treated as a literal
string and regular expression matching is NOT supported.
The maximum supported {str} length is 256.
If there are no matching strings or there is an error, then an
empty list is returned. If length of {str} is greater than
256, then returns an empty list.
Example: >
:echo matchfuzzy(["clay", "crow"], "cay")
< results in ["clay"]. >
:echo getbufinfo()->map({_, v -> v.name})->matchfuzzy("ndl")
< results in a list of buffer names fuzzy matching "ndl". >
:echo v:oldfiles->matchfuzzy("test")
< results in a list of file names fuzzy matching "test". >
:let l = readfile("buffer.c")->matchfuzzy("str")
< results in a list of lines in "buffer.c" fuzzy matching "str".
matchlist({expr}, {pat} [, {start} [, {count}]]) *matchlist()*
Same as |match()|, but return a |List|. The first item in the
list is the matched string, same as what matchstr() would

1
runtime/doc/usr_41.txt
View File

@@ -603,6 +603,7 @@ String manipulation: *string-functions*
charclass() class of a character
match() position where a pattern matches in a string
matchend() position where a pattern match ends in a string
matchfuzzy() fuzzy matches a string in a list of strings
matchstr() match of a pattern in a string
matchstrpos() match and positions of a pattern in a string
matchlist() like matchstr() and also return submatches