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author | Stefan Monnier <monnier@iro.umontreal.ca> | 2019-03-21 08:27:39 -0400 |
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committer | Stefan Monnier <monnier@iro.umontreal.ca> | 2019-03-21 08:27:39 -0400 |
commit | c569cceb2d334564d320d2b4098c855db7eb88a0 (patch) | |
tree | f69d3c89a4a426f0f92131739fab07b599dbfd2f /doc/lispref | |
parent | 1fc6afbdf1ce0f8b23780bd4d2630ed49f365013 (diff) | |
download | emacs-c569cceb2d334564d320d2b4098c855db7eb88a0.tar.gz |
* doc: Recommend putting '-' as last char in Emacs charset regexps
* doc/lispref/searching.texi (Regexp Special):
* doc/emacs/search.texi (Regexps): Recommend - as last char in [...].
Diffstat (limited to 'doc/lispref')
-rw-r--r-- | doc/lispref/searching.texi | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/doc/lispref/searching.texi b/doc/lispref/searching.texi index 740be2a31ff..0f312915f9e 100644 --- a/doc/lispref/searching.texi +++ b/doc/lispref/searching.texi @@ -406,13 +406,13 @@ Note also that the usual regexp special characters are not special inside a character alternative. A completely different set of characters is special inside character alternatives: @samp{]}, @samp{-} and @samp{^}. -To include a @samp{]} in a character alternative, you must make it the -first character. For example, @samp{[]a]} matches @samp{]} or @samp{a}. -To include a @samp{-}, write @samp{-} as the first or last character of -the character alternative, or put it after a range. Thus, @samp{[]-]} -matches both @samp{]} and @samp{-}. (As explained below, you cannot -use @samp{\]} to include a @samp{]} inside a character alternative, -since @samp{\} is not special there.) +To include a @samp{]} in a character alternative, you must make it the first +character. For example, @samp{[]a]} matches @samp{]} or @samp{a}. To include +a @samp{-}, write @samp{-} as the last character of the character alternative, +tho you can also put it first or after a range. Thus, @samp{[]-]} matches both +@samp{]} and @samp{-}. (As explained below, you cannot use @samp{\]} to +include a @samp{]} inside a character alternative, since @samp{\} is not +special there.) To include @samp{^} in a character alternative, put it anywhere but at the beginning. |