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docs: fix upper ASCII limit for control characters

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Character 32 is space, which isn't a control character.
This commit is contained in:
Stefan Schwarzer 2020-12-22 21:57:01 +01:00 committed by Matthew Flatt
parent 6369646116
commit 4fa48182c0
1 changed files with 1 additions and 1 deletions
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pkgs/racket-doc/scribblings/guide/regexp.scrbl
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@ -386,7 +386,7 @@ supported are
@item{@litchar{[:blank:]} --- ASCII widthful whitespace: space and tab}
@item{@litchar{[:cntrl:]} --- ``control'' characters: ASCII 0 to 32}
@item{@litchar{[:cntrl:]} --- ``control'' characters: ASCII 0 to 31}
@item{@litchar{[:digit:]} --- ASCII digits, same as @litchar{\d}}