Unified HQ9+

Unified HQ9+, or alternatively, HQ9+++-*TCIX13BG2DidcoshwNZLEAR7U, is a language made by User:Cortex to unify all HQ9+ variants. It includes commands from just about every HQ9+ variant I could find, as well as some commands from other languages, and a few new commands unique to Unified HQ9+. Characters that are not commands are ignored.

Commands

Character	What it does	Language it's from
H	Print "Hello, World!"	HQ9+
Q	Print the program's source code
9	Print the lyrics to 99 bottles of beer
+	Increment the accumulator
++	Create a new object and increment the accumulator twice.	HQ9++
-	Decrement the accumulator	New to Unified HQ9+
*	Double the accumulator	New
T	Change the instruction set to a Turing-complete superset	HQ9+T (mentioned in CLB's HQ9+ blog post)
C	Copy input to output	CHIQRSX9+
I	Interpret input as Unified HQ9+ code
X	Make the language Turing-complete
1	Interpret all characters in the rest of the source code as their ROT13 variant.
3	Nop, for convenience.	New
B	Interpret input as a brainfuck program	HQ9+B
G	Print the interpreter's source code. (I is already taken, so I used G)	HI9+
2	Increment the accumulator twice (for if you don't want to print ++'s explanation)	New
D	Make the language 2D, and add all commands from HQ9+2D	New, but added to support HQ9+2D
i	Increment the accumulator. If the accumulator is a character, set it the next ASCII character.	Deadfish~
d	Decrement the accumulator
c	Make the accumulator a character
o	Print the accumulator
s	Square the accumulator
h	End the program (it's necessary now, because of course it is)
w	Print "Hello, world!"
N	Increment the accumulator by 10	New
Z	Set the accumulator to 0 (or to ASCII character 0 if the accumulator is a character)
L	Blink LED (compilers and interpreters need not implement this command if they so choose)	Embedded HQ9+
E	Print a link to this very Esolangs article.	Hexlr7
A	Print the name of the programming language the interpreter was written in.
R	Make the interpreter throw an error.
7	Do the following command 7 times. 77 followed by a command will do it 49 times. Any more than that and it just does it 7 times.
U	Do whatever the creator of the interpreter wants this command to do	New

Examples

Hello, World!

Hh

(prints "Hello, World!")

or

wh

(prints "Hello, world!")

or

NN*NNN2coZNs+oN---oo2+oZ2ss-N2oZ2ss-o-NN2+oN22o2+o------oZNsoZ2ss*+h

(prints "Hello, World!")

99 bottles of beer

9h

Quine

Qh

Cat program

Ch

Brainfuck interpreter

Bh

Self-interpreter

Ih

Hello, World! except it's 2D now for some reason

D        vh                     <

   v     H            <

   >                            ^
         >            ^

Hello World 2D, Part 2

Dv
>Hh
^<

External resources

• A partial interpreter by User:CatCatDeluxe