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updated for version 7.0216

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Bram Moolenaar
2006-03-06 23:29:24 +00:00
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runtime/doc/pattern.txt
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@ -1,4 +1,4 @@
*pattern.txt* For Vim version 7.0aa. Last change: 2006 Mar 01
*pattern.txt* For Vim version 7.0aa. Last change: 2006 Mar 06
VIM REFERENCE MANUAL by Bram Moolenaar
@ -16,8 +16,9 @@ explanations are in chapter 27 |usr_27.txt|.
5. Multi items |pattern-multi-items|
6. Ordinary atoms |pattern-atoms|
7. Ignoring case in a pattern |/ignorecase|
8. Compare with Perl patterns |perl-patterns|
9. Highlighting matches |match-highlight|
8. Composing characters |patterns-composing|
9. Compare with Perl patterns |perl-patterns|
10. Highlighting matches |match-highlight|
==============================================================================
1. Search commands *search-commands* *E486*
@ -1104,12 +1105,6 @@ Examples:
\cfoo - - foo Foo FOO
foo\C - - foo
*/\Z*
When "\Z" appears anywhere in the pattern, composing characters are ignored.
Thus only the base characters need to match, the composing characters may be
different and the number of composing characters may differ. Only relevant
when 'encoding' is "utf-8".
Technical detail: *NL-used-for-Nul*
<Nul> characters in the file are stored as <NL> in memory. In the display
they are shown as "^@". The translation is done when reading and writing
@ -1134,7 +1129,27 @@ expect. But invalid bytes may cause trouble, a pattern with an invalid byte
will probably never match.
==============================================================================
8. Compare with Perl patterns *perl-patterns*
8. Composing characters *patterns-composing*
*/\Z*
When "\Z" appears anywhere in the pattern, composing characters are ignored.
Thus only the base characters need to match, the composing characters may be
different and the number of composing characters may differ. Only relevant
when 'encoding' is "utf-8".
When a composing character appears at the start of the pattern of after an
item that doesn't include the composing character, a match is found at any
character that includes this composing character.
When using a dot and a composing character, this works the same as the
composing character by itself, except that it doesn't matter what comes before
this.
The order of composing characters matters, even though changing the order
doen't change what a character looks like. This may change in the future.
==============================================================================
9. Compare with Perl patterns *perl-patterns*
Vim's regexes are most similar to Perl's, in terms of what you can do. The
difference between them is mostly just notation; here's a summary of where
@ -1144,7 +1159,7 @@ Capability in Vimspeak in Perlspeak ~
----------------------------------------------------------------
force case insensitivity \c (?i)
force case sensitivity \C (?-i)
backref-less grouping \%(atom) (?:atom)
backref-less grouping \%(atom\) (?:atom)
conservative quantifiers \{-n,m} *?, +?, ??, {}?
0-width match atom\@= (?=atom)
0-width non-match atom\@! (?!atom)
@ -1177,10 +1192,10 @@ Finally, these constructs are unique to Perl:
- \& (which is to \| what "and" is to "or"; it forces several branches
to match at one spot)
- matching lines/columns by number: \%5l \%5c \%5v
- limiting the "return value" of a regex: \zs \ze
- setting the start and end of the match: \zs \ze
==============================================================================
9. Highlighting matches *match-highlight*
10. Highlighting matches *match-highlight*
*:mat* *:match*
:mat[ch] {group} /{pattern}/