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https://issues.apache.org/jira/browse/PDFBOX-4895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17160466#comment-17160466
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Andreas Lehmkühler commented on PDFBOX-4895:
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[~Faltiska] It looks like the whole point is more complicated than I thought.
I'm thinking about a suitable solution and will come back with a proposal
> Faster COSNumber
> ----------------
>
> Key: PDFBOX-4895
> URL: https://issues.apache.org/jira/browse/PDFBOX-4895
> Project: PDFBox
> Issue Type: Improvement
> Affects Versions: 2.0.20, 3.0.0 PDFBox
> Reporter: Alfred
> Assignee: Tilman Hausherr
> Priority: Trivial
> Labels: Optimization
> Fix For: 2.0.21, 3.0.0 PDFBox
>
> Attachments: PDFBOX-4895-b.patch, PDFBOX-4895.patch
>
>
> A small improvement can be made to COSNumber when checking if it's float.
> Current version uses indexOf twice, to check for '.' or 'e'.
> We can do that in one scan.
>
> Each call will scan through the entire string.
> We only have to scan until we find the chars, and stop if found.
>
> I found while profiling the code that the method gets called a lot, so the
> improvement makes a a bit of a difference.
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