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Posted to dev@poi.apache.org by bu...@apache.org on 2017/02/01 21:11:01 UTC
[Bug 60677] New: Invalid substring range in WMF draw
https://bz.apache.org/bugzilla/show_bug.cgi?id=60677
Bug ID: 60677
Summary: Invalid substring range in WMF draw
Product: POI
Version: 3.16-dev
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: POI Overall
Assignee: dev@poi.apache.org
Reporter: tallison@mitre.org
Target Milestone: ---
Created attachment 34707
--> https://bz.apache.org/bugzilla/attachment.cgi?id=34707&action=edit
Triggering file
Dominik Stadler's recent regression tests identified an invalid substring range
exception triggered by WMF's drawString.
I extracted the triggering wmf from the file in Dominik's regression corpus,
and I'm attaching it here.
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[Bug 60677] Invalid substring range in WMF drawString
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=60677
Tim Allison <ta...@mitre.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Tim Allison <ta...@mitre.org> ---
Doh, forgot to close out this issue. Committed in r1781593.
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[Bug 60677] Invalid substring range in WMF drawString
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=60677
Tim Allison <ta...@mitre.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
OS| |All
Summary|Invalid substring range in |Invalid substring range in
|WMF draw |WMF drawString
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[Bug 60677] Invalid substring range in WMF drawString
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=60677
--- Comment #1 from Tim Allison <ta...@mitre.org> ---
This was caused by my change to byte[] from String.
For multibyte encodings (e.g. Shift_JIS), things get interesting.
The byte length might not equal the string length().
The x information is stored in dx[], an array parallel to the
byte array text[]. dx[] stores x position in the
first byte of a multibyte character, but 0 for the other bytes
in that character.
We need to map this information to the String offsets
dx[0] = 13 text[0] = -125
dx[1] = 0 text[1] = 118
dx[2] = 14 text[2] = -125
dx[3] = 0 text[3] = -115
needs to be remapped as:
dxNormed[0] = 13 textString.get(0) = U+30D7
dxNormed[1] = 14 textString.get(1) = U+30ED
I have a patch ready, and I'll apply it once 3.16-beta2 is released.
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[Bug 60677] Invalid substring range in WMF drawString
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=60677
Dominik Stadler <do...@gmx.at> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|PatchAvailable |
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[Bug 60677] Invalid substring range in WMF drawString
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=60677
Dominik Stadler <do...@gmx.at> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |PatchAvailable
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