Lil Quick Reference

Types

`typeof`	False	Examples
`"number"`	`0`	`42` `37.5` `-29999`
`"string"`	`""`	`"foo\nbar"`
`"list"`	`()`	`11,22,33` `list 3`
`"dict"`	`()dict()`	`("a","b") dict 11,22`
`"table"`	n/a	`table range 2` `insert a:1 into 0`
`"function"`	n/a	`on x y do x+y end`

Primitives

Valence	Purpose
monad	arithmetic	`-` `!` `floor` `cos` `sin` `tan` `exp` `ln` `sqrt` `mag` `unit` `heading`
monad	reducers	`count` `first` `last` `sum` `min` `max` `raze`
monad	data	`range` [0…n) `keys` `list` (enlist) `rows` `cols` `table` `typeof` `flip`
dyad	arithmetic	`+` `-` `*` `/` `%` (y mod x) `^` (pow) `&` (min) `\|` (max)
dyad	logical	`<` `>` `=` (conforming equal) `~` (match) `unless` (x if y is `0`)
dyad	string	`fuse` `split` `parse` `format`
dyad	data	`,` (concat) `@` (index each right) `dict` `take` `drop` `limit` `in`
dyad	joins	`join` (natural join/zip) `cross` (cross join/cartesian product)

Flow

if bool ... end
if bool ... else ... end
if bool ... elseif bool ... else ... end (etc)
each val key index in x ... end
while bool ... end
send name[args]

Queries

select n:x where a by b orderby c asc from d reorder, compute, or filter a table
update n:x where a by b orderby c asc from d modify rows/columns of a table in place
extract n:x where a by b orderby c asc from d like select, but yields non-tabular values
insert n:x into d append to a table, or into 0 to make a new table
index: original row number
gindex: original index within row’s group
group: index of row’s group (by appearance)
column: the entire current subtable, for referencing denormal columns

Formatting

A format is %[name]*-0N.DX: * skip, 0 pad, N width.
- is invert char class (ro) or left justify.
.D is decimal places (fc), size of char class (ro), or truncate to D characters.

`X`	Purpose
`%nmz`	Parsing	literal `%`, number of chars read, matches? matches to end?
`ro`	Matching	repeat (0 or more in char class), optional (0 or 1 in char class)
`sula`	String	string, uppercase string, lowercase string, ASCII chars
`bficChH`	Number	bool, float, int, currency (`-$1.23`), plain currency (`-1.23`), hex lowercase, hex uppercase
`jep`	Misc.	JSON, unix epoch, time-parts {`year`, `month`, `day`, `hour`, `minute`, `second`}
`qv`	Lil	quoted Lil string literal, Lil variable name