diff options
Diffstat (limited to 'doc/gawk.texi')
| -rw-r--r-- | doc/gawk.texi | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/doc/gawk.texi b/doc/gawk.texi index 8d5eb5b3..8484864b 100644 --- a/doc/gawk.texi +++ b/doc/gawk.texi @@ -64,7 +64,7 @@ @c applies to and all the info about who's publishing this edition @c These apply across the board. -@set UPDATE-MONTH March, 2018 +@set UPDATE-MONTH May, 2018 @set VERSION 4.2 @set PATCHLEVEL 1 @@ -5808,7 +5808,7 @@ POSIX standard. @item @code{[:print:]} @tab Printable characters (characters that are not control characters) @item @code{[:punct:]} @tab Punctuation characters (characters that are not letters, digits, control characters, or space characters) -@item @code{[:space:]} @tab Space characters (such as space, TAB, and formfeed, to name a few) +@item @code{[:space:]} @tab Space characters (these are: space, TAB, newline, carriage return, formfeed and vertical tab) @item @code{[:upper:]} @tab Uppercase alphabetic characters @item @code{[:xdigit:]} @tab Characters that are hexadecimal digits @end multitable @@ -5833,6 +5833,13 @@ range of the ASCII character set. Use a complemented character list (@samp{[^\x00-\x7F]}) to match any single-byte characters that are not in the ASCII range. +@quotation NOTE +As of this writing (May 2018), Brian Kernighan's @command{awk} treats +@code{[:blank:]} like @code{[:space:]}, incorrectly matching +more characters than it should. We have submitted a patch to him, +and hope that this will be fixed. +@end quotation + @cindex bracket expressions, collating elements @cindex bracket expressions, non-ASCII @cindex collating elements |