Syntax

From the Tutorial:

Jelly uses its own 256-byte code page. Most of the characters in it are allocated for built-in atoms, but some of them have special semantics.

For now, this is just a list of Jelly syntax characters. An explanation will be added later.

Literals

Literal digits together are not added individually, but as a single number. 23 is the nilad 23. Use spaces to separate tokens 2 3 for 2, then 3. Leading 0s are counted as separate literals, e.g. 00103 is the same as 0 0 103.

Symbol	Description
	Token separator.
0	The literal 0.
1	The literal 1.
2	The literal 2.
3	The literal 3.
4	The literal 4.
5	The literal 5.
6	The literal 6.
7	The literal 7.
8	The literal 8.
9	The literal 9.

String literals

The following is a simple description of string literals. A more complete description can be found in the tutorial.

Symbol	Description	Syntax
“	Begins a string literal, and separates a list of strings inside a string literal.	“12“34”
”	Terminates a regular string or a list of strings. Without “, a character literal.	“1234”
»	Terminates a dictionary-compressed string.	“1234»
‘	Terminates a code-page index list. Jelly's version of ord().	“12“34‘
’	Terminates a base-250 number.	“1234’
⁾	Begins a 2-char string literal.	⁾12
⁽	Begins a 2-digit base-250 number. If the number is larger than 31500, subtracts 62850, otherwise adds 750.	⁽12

Other syntax characters

Symbol	Description	Syntax
<newline> or ¶	Starts a new link.	<link><newline><line>
ø	Starts a separate niladic chain.	ø<link>
µ	Starts a separate monadic chain.	µ<link>
)	Equivalent to µ€. Maps the chain to the left over its left argument. Unlike µ, the chain following ) retains the same left argument as the chain popped by ).	<link>)
ð	Starts a separate dyadic chain.	ð<link>
ɓ	Starts a separate dyadic chain with reversed arguments.	ɓ<link>
ı	Complex number. Without arguments, 1j.	xıy
ȷ	Decimal number, as in 2e6 for 2000000. Without arguments, 1000.	xȷy
-	Negative number. Without arguments, -1.	-5
.	Decimal number. Without arguments, 0.5.	1.2
,	Separate elements of a list. If any of the arguments is not a literal, or spaces separate the arguments, , will be treated as the "pair" atom instead.	x,y
[	Begins a comma-separated list. Note that [] doesn't work as the empty list, use “” or ⁸ instead.	[2]
]	Ends a comma-separated list.	[2]