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From Emmanuel Bourg <ebo...@apache.org>
Subject Re: [io] Unicode escape/unescape Writer/Reader
Date Wed, 07 Mar 2012 16:12:37 GMT
I now have an implementation ready for the reader in the [csv] source code:

https://svn.apache.org/repos/asf/commons/sandbox/csv/trunk/src/main/java/org/apache/commons/csv/UnicodeUnescapeReader.java

I think I'll also handle other escape sequences such as \n or \t.

Emmanuel Bourg


Le 12/11/2011 00:27, Emmanuel Bourg a écrit :
> Hi,
>
> It seem that unescaping unicode escape sequences (\u1234) in input
> stream is a common need. [configuration] does it for
> PropertiesConfiguration, and [csv] can also decode these sequences
> optionally.
>
> In the other direction, there is also a need to escape unicode
> characters not supported by a given encoding when writing (see
> CONFIGURATION-457).
>
> I think these features could be implemented as a UnicodeUnescapeReader
> and a UnicodeEscapeWriter that might fit into [io].
>
> For the reader, any unicode escape sequence would be transformed into
> the corresponding unicode character, or ignored if the sequence is not
> valid.
>
> For the writer, a target charset would be specified in the constructor,
> and any character not supported by this charset would be turned into
> \uxxxx.
>
> What do you think?
>
> Emmanuel Bourg


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