Nicolas Seriot nst

## fibo_tiny.ps
% PostScript sample obfuscation / minimisation
% gs -dNODISPLAY fibo_tiny.ps
% Nicolas Seriot, 2025-09
% Based on an idea from Takashi Hayakawa
% see https://seriot.ch/projects/postscript_tiny_ray_tracer.html

/if   % a
/exch % b
/dup  % c
/gt   % d

## emp_viz_1142.ps
/!{def}def/?[(A0grBP)(B0pBPg)(C0bgBR)(D0pGRb)(E0RpgP)(F0brGP)(G0rGRb)(H0gbPR)(I0pgRP)]!/`{11}!/Helvetica findfont 16 scalefont setfont/O{( )}!/'{O " 0 4 3 d h}!/:<</R[1 0 0]/G[0 1 0]/B[0 0 1]/P[1 0 1]>>!/P{/D}!/Q{/C}!/R{/G}!/S{/B}!/T{/A}!/V{/F}!/X{/E}!/Z{aload z}!/@{repeat}!/&{dict begin}!/${count}!/+{add}!/-{sub}!/#{rectstroke}!/"{dup}!/;{div}!/*{mul}!/~{neg}!/^{gt}!/={eq}!/_{not}!/,{end}!/.{showpage stop}!/|{cvi xor}!/ifelse/moveto/lineto/roll/idiv/stroke/get/put/false/exp/for/if/translate/fill/mod/setgray/exch/rectfill/setrgbcolor/grestore/gsave/closepath/getinterval/show/rotate/pop ${O " 0 $ 93 + put exch cvx !}@/H{putinterval}!/W[128{{' cvn}}@]! W 48[10{{' cvi}}@]H W 123{z[}h W 125{z]}h/Y[9{0}@]!/U[9{i}@]!({0"`2*`2*~}{0"b``2*~c`2*0cv}{q"1g68*-32d+4o2+g}{25j|}{Pq!018{Qq!uC3o`8**C3e`8*~*mDCgRq!0"`8*`8*#`4*`-`4*6-bG02wx013{Sq!u`4*`4*mG1g68*-B-9""*+*yG2B+g":q"9""*+^{84*-}lO"043dhgZs`~`4*m9""*+^{Hr0pH#}{In0pIf}at}kt}k}{0&Pq!D9={YL.}{018{Sq!UBg_{013{Tq!X?Bg!E1A68*+hVi_!D3o0^{E3JKYD1-g1J=_{Vi!}l}lD2^{E0JKYD3-g2

## emp_viz_full.ps
% Edge-matching puzzle solver for 3x3 grid
% Usage: gs emp_viz_full.ps

% Define 9 puzzle pieces with their edge colors
% Format: ID + rotation + 4 edge colors (top, right, bottom, left)
% Colors: lowercase/uppercase pairs must match (g matches G, p matches P, etc.)

/pieces
[(A0-grBP)  % Piece A: green(top), red(right), Blue(bottom), Purple(left)
 (B0-pBPg)  % Piece B: purple, Blue, Purple, green

## emp_full.ps
% Edge-matching puzzle solver for 3x3 grid
% Usage: gs -q -dNODISPLAY emp.ps

% Define 9 puzzle pieces with their edge colors
% Format: ID + rotation + 4 edge colors (top, right, bottom, left)
% Colors: lowercase/uppercase pairs must match (g matches G, p matches P, etc.)
/pieces
[(A0-grBP)  % Piece A: green(top), red(right), Blue(bottom), Purple(left)
 (B0-pBPg)  % Piece B: purple, Blue, Purple, green
 (C0-bgBR)  % Piece C: blue, green, Blue, Red

## emp_mini.ps
% gs -q -dNODISPLAY emp_mini.ps

/d{def}def/t[(A0-grBP)(B0-pBPg)(C0-bgBR)(D0-pGRb)(E0-RpgP)(F0-brGP)(G0-rGRb)
(H0-gbPR)(I0-pgRP)]d/B[9{null}repeat]d/U[9{false}repeat]d/c{dup 97 ge{32 sub}{32
add}ifelse}bind d/gs{exch dup 1 get 48 sub 3 -1 roll add 4 mod 3 add get}d/s{0
dict begin/u exch d u 9 eq{B{0 2 getinterval print(,)print}forall stop}{0 1 8{
/i exch d U i get not{0 1 3{/r exch d/rp t i get d rp 1 r 48 add put/f true d u
3 mod 0 gt{rp 3 gs c B u 1 sub get 1 gs ne{/f false d}if}if u 3 ge{rp 0 gs c B u
3 sub get 2 gs ne{/f false d}if}if f{B u rp put U i true put u 1 add s B u null
put U i false put}if}for}if}for}ifelse end}def 0 s

## pk.php
<?php
session_start();

$users_file = 'users.json';
$pending_file = 'pending.json';

function loadData($file) {
    if (!file_exists($file)) {
        return [];
    }

## 2147_seriotch_ascii.pdf.txt
%PDF-1.4
%ASCII

1 0 obj
<<
  /Pages 2 0 R
  /Type /Catalog
  /Version /1.4
>>
endobj

## crystals.ps
% Nicolas Seriot, seriot.ch
% 2025-06-25
% inspired by https://nedbatchelder.com/blog/202506/math_factoid_of_the_day_63.html

/E 28 def % cube edge
/O  6 def % cube offset % g 2 mul
/S 32 def % world edge size

/space [ S S S mul mul {0} repeat ] def

## ps_ref.html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>PostScript Operators</title>
    <style>
        body {
            font-family: sans-serif;
            margin: 20px;

## poly.ps.pdf

      
        
          
            
              
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                nst
                / poly.ps.pdf
            
            
              Last active
              April 6, 2025 11:27
            
              
                A simple PostScript and PDF polyglot file
              
          
        
      
        
  
    
    

          
    
      
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	% PostScript sample obfuscation / minimisation
	% gs -dNODISPLAY fibo_tiny.ps
	% Nicolas Seriot, 2025-09
	% Based on an idea from Takashi Hayakawa
	% see https://seriot.ch/projects/postscript_tiny_ray_tracer.html

	/if % a
	/exch % b
	/dup % c
	/gt % d
	% Edge-matching puzzle solver for 3x3 grid
	% Usage: gs emp_viz_full.ps

	% Define 9 puzzle pieces with their edge colors
	% Format: ID + rotation + 4 edge colors (top, right, bottom, left)
	% Colors: lowercase/uppercase pairs must match (g matches G, p matches P, etc.)

	/pieces
	[(A0-grBP) % Piece A: green(top), red(right), Blue(bottom), Purple(left)
	(B0-pBPg) % Piece B: purple, Blue, Purple, green
	% Edge-matching puzzle solver for 3x3 grid
	% Usage: gs -q -dNODISPLAY emp.ps

	% Define 9 puzzle pieces with their edge colors
	% Format: ID + rotation + 4 edge colors (top, right, bottom, left)
	% Colors: lowercase/uppercase pairs must match (g matches G, p matches P, etc.)
	/pieces
	[(A0-grBP) % Piece A: green(top), red(right), Blue(bottom), Purple(left)
	(B0-pBPg) % Piece B: purple, Blue, Purple, green
	(C0-bgBR) % Piece C: blue, green, Blue, Red
	% gs -q -dNODISPLAY emp_mini.ps

	/d{def}def/t[(A0-grBP)(B0-pBPg)(C0-bgBR)(D0-pGRb)(E0-RpgP)(F0-brGP)(G0-rGRb)
	(H0-gbPR)(I0-pgRP)]d/B[9{null}repeat]d/U[9{false}repeat]d/c{dup 97 ge{32 sub}{32
	add}ifelse}bind d/gs{exch dup 1 get 48 sub 3 -1 roll add 4 mod 3 add get}d/s{0
	dict begin/u exch d u 9 eq{B{0 2 getinterval print(,)print}forall stop}{0 1 8{
	/i exch d U i get not{0 1 3{/r exch d/rp t i get d rp 1 r 48 add put/f true d u
	3 mod 0 gt{rp 3 gs c B u 1 sub get 1 gs ne{/f false d}if}if u 3 ge{rp 0 gs c B u
	3 sub get 2 gs ne{/f false d}if}if f{B u rp put U i true put u 1 add s B u null
	put U i false put}if}for}if}for}ifelse end}def 0 s
	<?php
	session_start();

	$users_file = 'users.json';
	$pending_file = 'pending.json';

	function loadData($file) {
	if (!file_exists($file)) {
	return [];
	}
	%PDF-1.4
	%ASCII

	1 0 obj
	<<
	/Pages 2 0 R
	/Type /Catalog
	/Version /1.4
	>>
	endobj
	% Nicolas Seriot, seriot.ch
	% 2025-06-25
	% inspired by https://nedbatchelder.com/blog/202506/math_factoid_of_the_day_63.html

	/E 28 def % cube edge
	/O 6 def % cube offset % g 2 mul
	/S 32 def % world edge size

	/space [ S S S mul mul {0} repeat ] def
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>PostScript Operators</title>
	<style>
	body {
	font-family: sans-serif;
	margin: 20px;