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Diffstat (limited to 'runtime/doc/pattern.txt')
| -rw-r--r-- | runtime/doc/pattern.txt | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/runtime/doc/pattern.txt b/runtime/doc/pattern.txt index 634145da3e..42005b0d78 100644 --- a/runtime/doc/pattern.txt +++ b/runtime/doc/pattern.txt @@ -1421,5 +1421,38 @@ Finally, these constructs are unique to Perl: are suggested to use ":match" for manual matching and ":2match" for another plugin. +============================================================================== +11. Fuzzy matching *fuzzy-match* + +Fuzzy matching refers to matching strings using a non-exact search string. +Fuzzy matching will match a string, if all the characters in the search string +are present anywhere in the string in the same order. Case is ignored. In a +matched string, other characters can be present between two consecutive +characters in the search string. If the search string has multiple words, then +each word is matched separately. So the words in the search string can be +present in any order in a string. + +Fuzzy matching assigns a score for each matched string based on the following +criteria: + - The number of sequentially matching characters. + - The number of characters (distance) between two consecutive matching + characters. + - Matches at the beginning of a word + - Matches at a camel case character (e.g. Case in CamelCase) + - Matches after a path separator or a hyphen. + - The number of unmatched characters in a string. +The matching string with the highest score is returned first. + +For example, when you search for the "get pat" string using fuzzy matching, it +will match the strings "GetPattern", "PatternGet", "getPattern", "patGetter", +"getSomePattern", "MatchpatternGet" etc. + +The functions |matchfuzzy()| and |matchfuzzypos()| can be used to fuzzy search +a string in a List of strings. The matchfuzzy() function returns a List of +matching strings. The matchfuzzypos() functions returns the List of matches, +the matching positions and the fuzzy match scores. + +The "f" flag of `:vimgrep` enables fuzzy matching. + vim:tw=78:ts=8:noet:ft=help:norl: |