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Posted to dev@pdfbox.apache.org by "Alfred (Jira)" <ji...@apache.org> on 2020/06/21 11:45:00 UTC

[jira] [Updated] (PDFBOX-4895) Faster COSNumber

     [ https://issues.apache.org/jira/browse/PDFBOX-4895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alfred updated PDFBOX-4895:
---------------------------
    Attachment: PDFBOX-4895.patch

> 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
>            Priority: Trivial
>         Attachments: 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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