Andreas Lehmkühler created PDFBOX-4810:
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Summary: Improve CodespaceRange to be in line with the spec
Key: PDFBOX-4810
URL: https://issues.apache.org/jira/browse/PDFBOX-4810
Project: PDFBox
Issue Type: Improvement
Components: FontBox
Affects Versions: 2.0.19, 3.0.0 PDFBox
Reporter: Andreas Lehmkühler
Assignee: Andreas Lehmkühler
Fix For: 2.0.20, 3.0.0 PDFBox
While working on PDFBOX-4749 I've realized that the implementation of a
CodespaceRange from a CMap isn't correct.
For one byte ranges startBytes and endBytes define a linear range of values.
Double byte values define a rectangular range +not+ a linear range.
Examples:
* <00> <20> defines a linear range from 0x00 up to 0x20
* <8140> to <9FFC> defines a rectangular range. The high byte has to be within
0x81 and 0x9F and the low byte has to be within 0x40 and 0xFC
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