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Corrected regexp syntax docs for COMPLEMENT

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Clinton Gormley 2016-03-14 10:46:31 +01:00
parent c90b4f3bae
commit c3cd8564df
1 changed files with 12 additions and 4 deletions
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16
docs/reference/query-dsl/regexp-syntax.asciidoc
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@ -220,12 +220,20 @@ Complement::
--
The complement is probably the most useful option. The shortest pattern that
follows a tilde `"~"` is negated. For the string `"abcdef"`:
follows a tilde `"~"` is negated. For instance, `"ab~cd" means:
* Starts with `a`
* Followed by `b`
* Followed by a string of any length that it anything but `c`
* Ends with `d`
For the string `"abcdef"`:
ab~df # match
ab~cf # no match
a~(cd)f # match
a~(bc)f # no match
ab~cf # match
ab~cdef # no match
a~(cb)def # match
a~(bc)def # no match
Enabled with the `COMPLEMENT` or `ALL` flags.