PostScript Language Reference [pdf]

This page summarizes the projects mentioned and recommended in the original post on news.ycombinator.com

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  • forth

    Porting Richard Jones' FORTH to ARM

    You're very welcome.

    For later exploration, JonesForth <https://github.com/phf/forth/tree/master/x86> is excellent exploration of Forth's internals.

  • qpdf

    QPDF: A content-preserving PDF document transformer

    I think you're describing stream compression, which appears to be utterly ubiquitous to the point that the knobs to turn it off have either technically bitrotted or faded well below our collective awareness threshold.

    After poking around a bit I noticed ps2pdf supports a "CompressPages" option (https://web.mit.edu/ghostscript/www/Ps2pdf.htm), which might be what you're looking for.

    Alternatively you might use something like `qpdf --stream-data=uncompress input.pdf output.pdf`.

    qpdf (info: http://qpdf.sourceforge.net/, https://github.com/qpdf/qpdf) seems to be a good recommendation to add to the "mentally index the entire man page" list for anyone interested in PDF in general.

  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  • maths132-notes

    Notes I wrote for Lee White's Maths 132 Differential Equations course, University of Melbourne, 1995-96

    I used to love programming in PostScript.

    This post prompted me to put some of my old math notes up on GitHub [1]. The final chapter on coupled differential equations sends the DE's parameters to the PostScript printer, where my PS code would execute the different equations and draw the resulting phase portrait.

    My PS code is in that repo's README. The final results are in the notes.pdf file [2]. The best examples are in the last few pages.

    [1] https://github.com/stevesimmons/maths132-notes

    [2] https://github.com/stevesimmons/maths132-notes/blob/main/not...

  • openfirmware

    OpenFirmware as used on OLPC (and elsewhere)

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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