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https://issues.apache.org/jira/browse/MAPREDUCE-1400?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12804813#action_12804813
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Allen Wittenauer commented on MAPREDUCE-1400:
---------------------------------------------
FWIW, Single UNIX ® Specification, Version 2, defines these as:
space
Define characters to be classified as white-space characters. In the POSIX
locale, at a minimum, the characters space, form-feed, newline,
carriage-return, tab and vertical-tab are included. In a locale definition
file, no character specified for the keywords upper, lower, alpha, digit, graph
or xdigit can be specified. The characters space, form-feed, newline,
carriage-return, tab and vertical-tab of the portable character set, and any
characters included in the class blank are automatically included in this
class.
...
blank
Define characters to be classified as blank characters. In the POSIX
locale, only the space and tab characters are included. In a locale definition
file, the characters space and tab are automatically included in this class.
...
[ref: http://opengroup.org/onlinepubs/007908775/xbd/locale.html ]
Of course, if people aren't following POSIX (which /usr/bin/tr on Solaris
likely doesn't, but /usr/xpg4/bin/tr definitely does), then it is a bit of
gamble which way you go.
> sed in build.xml fails
> ----------------------
>
> Key: MAPREDUCE-1400
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1400
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Environment: ant 1.7.1, Solaris
> Reporter: Allen Wittenauer
> Assignee: Allen Wittenauer
> Priority: Minor
> Attachments: MAPRED-1400.txt
>
>
> MAPRED version of HADOOP-6505
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