diff options
Diffstat (limited to 'runtime/doc/pattern.txt')
| -rw-r--r-- | runtime/doc/pattern.txt | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/runtime/doc/pattern.txt b/runtime/doc/pattern.txt index cc485b655d..88b7f65209 100644 --- a/runtime/doc/pattern.txt +++ b/runtime/doc/pattern.txt @@ -282,6 +282,14 @@ the "#" is under your left hand middle finger (search to the left and up) and the "*" is under your right hand middle finger (search to the right and down). (this depends on your keyboard layout though). + *E956* +In very rare cases a regular expression is used recursively. This can happen +when executing a pattern takes a long time and when checkig for messages on +channels a callback is invoked that also uses a pattern or an autocommand is +triggered. In most cases this should be fine, but if a pattern is in use when +it's used again it fails. Usually this means there is something wrong with +the pattern. + ============================================================================== 2. The definition of a pattern *search-pattern* *pattern* *[pattern]* *regular-expression* *regexp* *Pattern* @@ -888,7 +896,7 @@ $ At end of pattern or in front of "\|", "\)" or "\n" ('magic' on): becomes invalid. Vim doesn't automatically update the matches. Similar to moving the cursor for "\%#" |/\%#|. - */\%l* */\%>l* */\%<l* + */\%l* */\%>l* */\%<l* *E951* \%23l Matches in a specific line. \%<23l Matches above a specific line (lower line number). \%>23l Matches below a specific line (higher line number). @@ -1148,7 +1156,8 @@ x A single character, with no special meaning, matches itself - Matching with a collection can be slow, because each character in the text has to be compared with each character in the collection. Use one of the other atoms above when possible. Example: "\d" is - much faster than "[0-9]" and matches the same characters. + much faster than "[0-9]" and matches the same characters. However, + the new |NFA| regexp engine deals with this better than the old one. */\%[]* *E69* *E70* *E369* \%[] A sequence of optionally matched atoms. This always matches. @@ -1390,4 +1399,4 @@ Finally, these constructs are unique to Perl: ":2match" for another plugin. - vim:tw=78:ts=8:ft=help:norl: + vim:tw=78:ts=8:noet:ft=help:norl: |