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Test driver

Test driver

• The first line is a palindrome matching .␣␣␣␣␣␣␣␣"␣"␣␣␣␣␣␣␣␣. (you are free to fill in the ␣s).
• The second character is one of ',16;, or a tab, or one of \x04\x0e\x13\x18\x1d.
• Its length is an even perfect square.
• There are at least 28 lines, and all lines are distinct.
• The ninth line must have at least 22 characters (excluding the newline).
• The last line does not have any duplicate characters.
• Contains the exact strings ->, Hi, Retina!, and Henry Jams?.
• It contains |, + and C.
• Each line contains at least one tab character, but it can't be the first character on a line.
• !". are banned except where necessary:
  • Only ! in Hi, Retina! and the two . and two " in the first line are allowed.
• #$[\] may not appear in the program.
• The program ends with: tab, (whatever), ~.
• Angle braces must be balanced.
• There must be more than 88 distinct code points in the program.

• The first line is a palindrome matching .␣␣␣␣␣␣␣␣"␣"␣␣␣␣␣␣␣␣. (you are free to fill in the ␣s).
• The second character is one of ',16;, or a tab, or one of \x04\x0e\x13\x18\x1d.
• Its length is an even perfect square.
• There are at least 28 lines, and all lines are distinct.
• The ninth line must have at least 22 characters (excluding the newline).
• The last line does not have any duplicate characters.
• Contains the exact strings ->, Hi, Retina!, and Henry Jams?.
• It contains |, + and C.
• Each line contains at least one tab character, but it can't be the first character on a line.
• !". are banned except where necessary:
  • Only ! in Hi, Retina! and the two . and two " in the first line are allowed.
• #$[\] may not appear in the program.
• The program ends with: tab, (whatever), ~.
• Angle braces must be balanced.
• There must be more than 88 distinct code points in the program.

.6|0&"123'   '321"&0|6.
*   
0   
;   
+   
eval(   
~   
preg_replace    
('Hi, Retina!'^'g5X|>/345789:@ABCDEFGHIJKLMNOPQRSTUVWXYZ 
a   
b   
c   
d   
e   
f   
g   
h   
i   
j   
k   
l   m~

Not being able to use $ made this quite tricky, in my original solution I misunderstood the rule, but I think I have everything covered now.

00000000: 2e36 7c30 2622 3132 3327 0927 3332 3122  .6|0&"123'.'321"
00000010: 2630 7c36 2e0a 2a09 0a30 090a 3b09 0a2b  &0|6..*..0..;..+
00000020: 090a 6576 616c 2809 0a7e 090a 7072 6567  ..eval(..~..preg
00000030: 5f72 6570 6c61 6365 090a 2827 4869 2c20  _replace..('Hi, 
00000040: 5265 7469 6e61 2127 5e27 6735 587c 3c4a  Retina!'^'g5X|<J
00000050: 2709 0a2c 090a 2727 090a 5e27 4865 6e72  '..,..''..^'Henr
00000060: 7920 4a61 6d73 3f27 090a 2c27 9b96 9ad7  y Jams?'..,'....
00000070: 9c90 8a91 8bd7 9c90 8a91 8ba0 9c97 9e8d  ................
00000080: 8cd7 9996 939a a098 9a8b a09c 9091 8b9a  ................
00000090: 918b 8cd7 dd8f 978f c5d0 d08c 8b9b 9691  ................
000000a0: ddd6 d3ce d6d6 c1c7 c7c0 abc5 b9d6 c427  ...............'
000000b0: 2929 3b3f 3e3e 2f33 3435 3738 393a 4041  ));?>>/345789:@A
000000c0: 4243 4445 4647 4849 4a4b 4c4d 4e4f 5051  BCDEFGHIJKLMNOPQ
000000d0: 5253 5455 5657 5859 5a09 0a61 090a 6209  RSTUVWXYZ..a..b.
000000e0: 0a63 090a 6409 0a65 090a 6609 0a67 090a  .c..d..e..f..g..
000000f0: 6809 0a69 090a 6a09 0a6b 090a 6c09 6d7e  h..i..j..k..l.m~

Try it online!

I'm having problems getting my code properly into the test driver, but I believe I satisfy all the conditions.

.6|0&"123'  '321"&0|6.
<   
0   
;   
+   
eval(   
~   
preg_replace    
('Hi, Retina!'^'g5X|<J' 
,   
''  
^'Henry Jams?'  
,'×× ×  ×ÝÅÐÐÝÖÓÎÖÖÁÇÇÀ«Å¹ÖÄ'));?>->/45789:@ABCDEFGHIJKLMNOPQ  
*   
a   
b   
c   
d   
e   
f   
g   
h   
i   
j   
k   
m   
n   
o   p~

Not being able to use $ made this quite tricky, in my original solution I misunderstood the rule, but I think I have everything covered now. I've used high-byte characters, ~ and eval to work around the lack of decent variables for PHP. I nearly made the minimum number of unique code points 96, but I thought that might make it a little too hard for some languages.

00000000: 2e36 7c30 2622 3132 3327 0927 3332 3122  .6|0&"123'.'321"
00000010: 2630 7c36 2e0a 2a09 0a30 090a 3b09 0a2b  &0|6..*..0..;..+
00000020: 090a 6576 616c 2809 0a7e 090a 7072 6567  ..eval(..~..preg
00000030: 5f72 6570 6c61 6365 090a 2827 4869 2c20  _replace..('Hi, 
00000040: 5265 7469 6e61 2127 5e27 6735 587c 3c4a  Retina!'^'g5X|<J
00000050: 2709 0a2c 090a 2727 090a 5e27 4865 6e72  '..,..''..^'Henr
00000060: 7920 4a61 6d73 3f27 090a 2c27 9b96 9ad7  y Jams?'..,'....
00000070: 9c90 8a91 8bd7 9c90 8a91 8ba0 9c97 9e8d  ................
00000080: 8cd7 9996 939a a098 9a8b a09c 9091 8b9a  ................
00000090: 918b 8cd7 dd8f 978f c5d0 d08c 8b9b 9691  ................
000000a0: ddd6 d3ce d6d6 c1c7 c7c0 abc5 b9d6 c427  ...............'
000000b0: 2929 3b3f 3e2d 3e2f 3435 3738 393a 4041  ));?>->/45789:@A
000000c0: 4243 4445 4647 4849 4a4b 4c4d 4e4f 5051  BCDEFGHIJKLMNOPQ
000000d0: 090a 3c09 0a61 090a 6209 0a63 090a 6409  ..<..a..b..c..d.
000000e0: 0a65 090a 6609 0a67 090a 6809 0a69 090a  .e..f..g..h..i..
000000f0: 6a09 0a6b 090a 6d09 0a6e 090a 6f09 707e  j..k..m..n..o.p~

Try it online!

Test driver