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Welcome to the xpost discussion group. There are no preconceived restrictions to the content of this group, but it should largely pertain to the xpost computer program, an interpreter for the PostScript Language published by Adobe Systems. It is cross-platform (Windows, Unix and friends including Solaris). It has a unit-tested modular framework which is factored to have no circular dependencies. xpost is written in C89/90 for compatibility with Visual C. xpost's graphics functionality is written in postscript, with output devices implemented in C. For performance, some postscript graphics functions are overrided by C functions.

The current code may be browsed at https://github.com/luser-dr00g/xpost

Details of the design and algorithms used are described in https://github.com/luser-dr00g/xpost/blob/master/doc/NEWINTERNALS

For deeper background. see the message 'c.l.ps ps interpreter design topics', below.

Current issues, including features that will comprise the first release: https://github.com/luser-dr00g/xpost/issues

Current Standard Conformance: nearly all of level 1 with level 2 extensions (expanding stacks and dictionaries, global and local memory, garbage collection),, DPS extensions (fork and join contexts), and NeWS extensions (magic dictionaries, getenv/putenv).

Motto: "... As described in the PLRM."

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luserdroog, … Ross Presser6

11/17/18

I'm kind of at a crossroads with the project. I think what needs to happen is a top-down redesign

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I'm kind of at a crossroads with the project. I think what needs to happen is a top-down redesign

11/17/18

12/10/16

I've just added the navigations with left and right keys Vincent Le samedi 10 décembre 2016 05:51

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I've just added the navigations with left and right keys Vincent Le samedi 10 décembre 2016 05:51

12/10/16

L Michaels, … vincent.torri9

12/9/16

Josh just fixed some bugs and xpost_view is displaying minimal PS file :) there are still some

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Josh just fixed some bugs and xpost_view is displaying minimal PS file :) there are still some

12/9/16

luserdroog, Vincent Torri3

11/28/16

The Memory File

That's interesting, but I'm a little afraid of IPC, especially cross-platform. And even this

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The Memory File

That's interesting, but I'm a little afraid of IPC, especially cross-platform. And even this

11/28/16

11/8/16

Basic DSC parsing

I have added %%+ management it remains trailer as big improvement Le dimanche 25 septembre 2016 20:53

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Basic DSC parsing

I have added %%+ management it remains trailer as big improvement Le dimanche 25 septembre 2016 20:53

11/8/16

11/8/16

designing an interface for FILE*

Here's half of it. Added the extensible interfaced file type and the implementation for regular

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designing an interface for FILE*

Here's half of it. Added the extensible interfaced file type and the implementation for regular

11/8/16

6/15/16

A web site, created with the github pages, is available here : http://luser-dr00g.github.io/xpost/.

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A web site, created with the github pages, is available here : http://luser-dr00g.github.io/xpost/.

6/15/16

vincent.torri, luserdroog2

6/15/16

JPEG device added

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JPEG device added

6/15/16

luserdroog, vincent.torri3

6/12/16

New Device: PNG output

I have added the compression level and interlaced features for the PNG device. Vincent Le mercredi 1

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New Device: PNG output

I have added the compression level and interlaced features for the PNG device. Vincent Le mercredi 1

6/12/16

luserdroog ., … Vincent Torri3

5/4/16

Re: Please could there be a web implementation of xpost

We are lacking of help, so if you want to contribute, we would be glad to receive some patches :-) On

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Re: Please could there be a web implementation of xpost

We are lacking of help, so if you want to contribute, we would be glad to receive some patches :-) On

5/4/16

4/29/16

Old downloads files via wayback

http://web.archive.org/web/20160404161504/https://code.google.com/p/xpost/downloads/list

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Old downloads files via wayback

http://web.archive.org/web/20160404161504/https://code.google.com/p/xpost/downloads/list

4/29/16

5/17/15

Moved to github

New project URL: https://github.com/luser-dr00g/xpost wiki pages are in the "wiki" branch.

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Moved to github

New project URL: https://github.com/luser-dr00g/xpost wiki pages are in the "wiki" branch.

5/17/15

luserdroog, … vincent.torri12

4/4/15

Is there a better name than 'xpost'?

I like those. Some others in a similar vein: coda, metalog or metalogos. Pedant would be an excellent

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Is there a better name than 'xpost'?

I like those. Some others in a similar vein: coda, metalog or metalogos. Pedant would be an excellent

4/4/15

malcolm...@btinternet.com, … vincent.torri35

1/29/15

Baby X postscript widget.

Ok, I think that I have succeeded with Visual Studio 2013 Community. I have create a simple C++

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Baby X postscript widget.

Ok, I think that I have succeeded with Visual Studio 2013 Community. I have create a simple C++

1/29/15

luserdroog, vincent.torri4

1/8/15

Recent milestones

I keep meaning to ask what is that gizmo in your message "Mark as complete"? What's

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Recent milestones

I keep meaning to ask what is that gizmo in your message "Mark as complete"? What's

1/8/15

12/25/14

c.l.c. interpreter design topics

advice/thoughts on garbage collection? 2/1309 https://groups.google.com/d/topic/comp.lang.c/vCwi93EGh

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c.l.c. interpreter design topics

advice/thoughts on garbage collection? 2/1309 https://groups.google.com/d/topic/comp.lang.c/vCwi93EGh

12/25/14

8/2/14

A Personal Note - CS50 Class

Ok. So, here's what happened. I did three weeks of homework the first night, and then I cleaned-

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A Personal Note - CS50 Class

Ok. So, here's what happened. I did three weeks of homework the first night, and then I cleaned-

8/2/14

7/27/14

Ok. I've got the basic dps context operators appearing to work acceptably. mark obj0..objn proc

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Ok. I've got the basic dps context operators appearing to work acceptably. mark obj0..objn proc

7/27/14

7/26/14

graphics code executes with ghostscript, exhibits same bugs.

There is some potential use of this "portable" graphics code, in a proposed code-golf

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graphics code executes with ghostscript, exhibits same bugs.

There is some potential use of this "portable" graphics code, in a proposed code-golf

7/26/14

2/17/14

Current work and challenges.

After some discussion with the LibreOffice guys, I think Vincent and I have planned our work in the

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Current work and challenges.

After some discussion with the LibreOffice guys, I think Vincent and I have planned our work in the

2/17/14

3/15/15

c.l.ps ps interpreter design topics.

how do save/restore really work? 2/28/09 https://groups.google.com/d/topic/comp.lang.postscript/

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c.l.ps ps interpreter design topics.

how do save/restore really work? 2/28/09 https://groups.google.com/d/topic/comp.lang.postscript/

3/15/15

12/18/13

executable program name is now "xpost"!

This revision (http://code.google.com/p/xpost/source/detail?r=

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executable program name is now "xpost"!

This revision (http://code.google.com/p/xpost/source/detail?r=

12/18/13

12/8/13

The problem of memory. And some solutions.

Another way to improve the memory behavior, I think, is to change the way the free list works. Right

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The problem of memory. And some solutions.

Another way to improve the memory behavior, I think, is to change the way the free list works. Right

12/8/13

12/2/13

union "upcasting"

Suffice to say: it's bad. We won't do it anymore. We won't tell any body. You don't

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union "upcasting"

Suffice to say: it's bad. We won't do it anymore. We won't tell any body. You don't

12/2/13

11/21/13

We've now got greyscale drawing with both Windows and X. To get the xcb stuff to compile, I had

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We've now got greyscale drawing with both Windows and X. To get the xcb stuff to compile, I had

11/21/13

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