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https://issues.apache.org/jira/browse/IO-178?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keith D Gregory updated IO-178:
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Attachment: TestBOMExclusionInputStream.java
BOMExclusionInputStream.java
I apologize for attaching actual files, but I didn't find any way to get
Subversion diff to recognize new files (unlike CVS diff, which takes a "N"
argument).
> BOMExclusionInputStream - an InputStream for UTF-8 data that ignores an
> initial Byte Order mark
> -----------------------------------------------------------------------------------------------
>
> Key: IO-178
> URL: https://issues.apache.org/jira/browse/IO-178
> Project: Commons IO
> Issue Type: New Feature
> Components: Streams/Writers
> Affects Versions: 1.4
> Reporter: Keith D Gregory
> Priority: Minor
> Attachments: BOMExclusionInputStream.java,
> TestBOMExclusionInputStream.java
>
>
> Microsoft tools have the unpleasant habit of writing a byte order mark (the
> three-byte sequence 0xEF 0xBB 0xBF) at the start of a UTF-8 encoded file.
> The CharsetDecoder supplied with the JDK does not simply discard these bytes,
> but instead returns the BOM character (0xFEFF); see
> http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6378911 for discussion on
> this.
> This makes life unpleasant for anyone who is processing text data, as the
> program must look for this character and ignore it.
> The BOMExclusionInputStream class is a work-around: it recognizes the BOM at
> the start of the stream, and skips over it.
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