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-rw-r--r--Doc/Zsh/expn.yo1
1 files changed, 1 insertions, 0 deletions
diff --git a/Doc/Zsh/expn.yo b/Doc/Zsh/expn.yo
index d32ad5455..e49fa06cb 100644
--- a/Doc/Zsh/expn.yo
+++ b/Doc/Zsh/expn.yo
@@ -1122,6 +1122,7 @@ Matches any of the enclosed characters.  Ranges of characters
 can be specified by separating two characters by a `tt(-)'.
 A `tt(-)' or `tt(])' may be matched by including it as the
 first character in the list.
+cindex(character classes)
 There are also several named classes of characters, in the form
 `tt([:)var(name)tt(:])' with the following meanings:  `tt([:alnum:])'
 alphanumeric, `tt([:alpha:])' alphabetic,