++alf
Alphabetic characters
Parse alphabetic characters, both upper and lowercase.
Source
++ alf ;~(pose low hig) :: alphabetic
Examples
> (scan "a" alf)
~~a
> (scan "A" alf)
~~~41.
> (scan "AaBbCc" (star alf))
"AaBbCc"++aln
Alphanumeric characters
Parse alphanumeric characters - both alphabetic characters and numbers.
Source
++ aln ;~(pose low hig nud) :: alphanumeric
Examples
> (scan "0" aln)
~~0
> (scan "alf42" (star aln))
"alf42"
> (scan "0123456789abcdef" (star aln))
"0123456789abcdef"++alp
Alphanumeric and -
Parse alphanumeric strings and hep, "-".
Source
++ alp ;~(pose low hig nud hep) :: alphanumeric and -
Examples
> (scan "7" alp)
~~7
> (scan "s" alp)
~~s
> (scan "123abc-" (star alp))
"123abc-"++bet
Axis syntax -, +
Parse the hep and lus axis syntax.
Source
++ bet ;~(pose (cold 2 hep) (cold 3 lus)) :: axis syntax - +
Examples
> (scan "-" bet)
2
> (scan "+" bet)
3++bin
Binary to atom
Parse a tape of binary (0s and 1s) and produce its atomic representation.
Source
++ bin (bass 2 (most gon but)) :: binary to atom
Examples
> (scan "0000" bin)
0
> (scan "0001" bin)
1
> (scan "0010" bin)
2
> (scan "100000001111" bin)
2.063++but
Binary digit
Parse a single binary digit.
Source
++ but (cook |=(a=@ (sub a '0')) (shim '0' '1')) :: binary digit
Examples
> (scan "0" but)
0
> (scan "1" but)
1
> (scan "01" but)
! {1 2}
! 'syntax-error'
! exit
> (scan "01" (star but))
~[0 1]++cit
Octal digit
Parse a single octal digit.
Source
++ cit (cook |=(a=@ (sub a '0')) (shim '0' '7')) :: octal digit
Examples
> (scan "1" cit)
1
> (scan "7" cit)
7
> (scan "8" cit)
! {1 1}
! 'syntax-error'
! exit
> (scan "60" (star cit))
~[6 0]++dem
Decimal to atom
Parse a decimal number to an atom.
Source
++ dem (bass 10 (most gon dit)) :: decimal to atom
Examples
> (scan "7" dem)
7
> (scan "42" dem)
42
> (scan "150000000" dem)
150.000.000
> (scan "12456" dem)
12.456++dit
Decimal digit
Parse a single decimal digit.
Source
++ dit (cook |=(a=@ (sub a '0')) (shim '0' '9')) :: decimal digit
Examples
> (scan "7" dit)
7
> (scan "42" (star dit))
~[4 2]
> (scan "26000" (star dit))
~[2 6 0 0 0]++dog
. optional gap
Dot followed by an optional gap, used with numbers.
Source
++ dog ;~(plug dot gay) ::
Examples
> 1.234.703
703
1.234.703
> (scan "a. " ;~(pfix alf dog))
[~~~. ~]++doh
@p separator
Phonetic base phrase separator
Source
++ doh ;~(plug ;~(plug hep hep) gay) ::
Examples
/> ~nopfel-botduc-nilnev-dolfyn--haspub-natlun-lodmur-holtyd
~nopfel-botduc-nilnev-dolfyn--haspub-natlun-lodmur-holtyd
/> ~nopfel-botduc-nilnev-dolfyn--
haspub-natlun-lodmur-holtyd
~nopfel-botduc-nilnev-dolfyn--haspub-natlun-lodmur-holtyd
> (scan "--" doh)
[[~~- ~~-] ~]
> (scan "-- " doh)
[[~~- ~~-] ~]++dun
-- to ~
Parse phep, --, to null, ~.
Source
++ dun (cold ~ ;~(plug hep hep)) :: -- (phep) to ~
Examples
> (scan "--" dun)
~
> (dun [[1 1] "--"])
[p=[p=1 q=3] q=[~ u=[p=~ q=[p=[p=1 q=3] q=""]]]]++duz
== to ~
Parse stet, ==, to null ~.
Source
++ duz (cold ~ ;~(plug tis tis)) :: == (stet) to ~
Examples
> (scan "==" duz)
~
> (duz [[1 1] "== |=..."])
[p=[p=1 q=3] q=[~ u=[p=~ q=[p=[p=1 q=3] q=" |=..."]]]]++gah
Newline or ' '
Whitespace component, either newline or space.
Source
++ gah (mask [`@`10 ' ' ~]) :: newline or ace
Examples
/> ^- * :: show spaces
"""
-
-
-
"""
[32 32 32 45 10 32 45 10 32 32 45 0]
/> ^- *
"""
"""
[32 32 32 10 32 10 32 32 0]
/> ^- (list ,@)
%- scan :_ (star gah)
"""
"""
~[32 32 32 10 32 10 32 32]++gap
Plural whitespace
Separates tall runes
Source
++ gap (cold ~ ;~(plug gaq (star ;~(pose vul gah)))) :: plural whitespace
++gaq
End of line
Two spaces, a newline, or comment.
Source
++ gaq ;~ pose :: end of line
(just `@`10)
;~(plug gah ;~(pose gah vul))
vul
==
++gaw
Classic whitespace
Terran whitespace.
Source
++ gaw (cold ~ (star ;~(pose vul gah))) :: classic white
++gay
Optional gap
Optional gap.
Source
++ gay ;~(pose gap (easy ~)) ::
++gon
Long numbers
Parse long numbers - Numbers which wrap around the shell with the line
Source
++ gon ;~(pose ;~(plug bas gay fas) (easy ~)) :: long numbers \ /
Examples
> (scan "\\/" gon)
[~~~5c. ~ ~~~2f.]
> (gon [[1 1] "\\/"])
[p=[p=1 q=3] q=[~ u=[p=[~~~5c. ~ ~~~2f.] q=[p=[p=1 q=3] q=""]]]]++gul
Axis syntax < or >
Parse the axis gal and gar axis syntax.
Source
++ gul ;~(pose (cold 2 gal) (cold 3 gar)) :: axis syntax < >
Examples
> (scan "<" gul)
2
> (scan ">" gul)
3++hex
Hex to atom
Parse any hexadecimal number to an atom.
Source
++ hex (bass 16 (most gon hit)) :: hex to atom
Examples
> (scan "a" hex)
10
> (scan "A" hex)
10
> (scan "2A" hex)
42
> (scan "1ee7" hex)
7.911
> (scan "1EE7" hex)
7.911
> (scan "1EE7F7" hex)
2.025.463
> `@ux`(scan "1EE7F7" hex)
0x1e.e7f7++hig
Uppercase
Parse a single uppercase letter.
Source
++ hig (shim 'A' 'Z') :: uppercase
Examples
> (scan "G" hig)
~~~47.
> `cord`(scan "G" hig)
'G'
> (scan "ABCDEFGHIJKLMNOPQRSTUVWXYZ" (star hig))
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
> (hig [[1 1] "G"])
[p=[p=1 q=2] q=[~ [p=~~~47. q=[p=[p=1 q=2] q=""]]]]++hit
Hex digits
Parse a single hexadecimal digit.
Source
++ hit ;~ pose :: hex digits
dit
(cook |=(a=char (sub a 87)) (shim 'a' 'f'))
(cook |=(a=char (sub a 55)) (shim 'A' 'F'))
==
Examples
> (scan "a" hit)
10
> (scan "A" hit)
10
> (hit [[1 1] "a"])
[p=[p=1 q=2] q=[~ [p=10 q=[p=[p=1 q=2] q=""]]]]
> (scan "2A" (star hit))
~[2 10]++iny
Indentation block
Apply ++rule to indented block starting at current column number, omitting
the leading whitespace.
Accepts
sef is a ++rule
Produces
A ++rule.
Source
++ inde |* sef/rule :: indentation block
|= nail ^+ (sef)
=+ [har tap]=[p q]:+<
=+ lev=(fil 3 (dec q.har) ' ')
=+ eol=(just `@t`10)
=+ =- roq=((star ;~(pose prn ;~(sfix eol (jest lev)) -)) har tap)
;~(simu ;~(plug eol eol) eol)
?~ q.roq roq
=+ vex=(sef har(q 1) p.u.q.roq)
=+ fur=p.vex(q (add (dec q.har) q.p.vex))
?~ q.vex vex(p fur)
=- vex(p fur, u.q -)
:+ &3.vex
&4.vex(q.p (add (dec q.har) q.p.&4.vex))
=+ res=|4.vex
|- ?~ res |4.roq
?. =(10 -.res) [-.res $(res +.res)]
(welp [`@t`10 (trip lev)] $(res +.res))
::
Examples
> (scan "abc" (iny (star ;~(pose prn (just `@`10)))))
"abc"
> (scan "abc" (star ;~(pose prn (just `@`10))))
"abc"
> (scan " abc\0ade" ;~(pfix ace ace (star ;~(pose prn (just `@`10)))))
"abc
de"
> (scan " abc\0ade" ;~(pfix ace ace (iny (star ;~(pose prn (just `@`10))))))
! {1 6}
! exit
> (scan " abc\0a de" ;~(pfix ace ace (iny (star ;~(pose prn (just `@`10))))))
"abc
de"++low
Lowercase
Parse a single lowercase letter.
Source
++ low (shim 'a' 'z') :: lowercase
Examples
> (scan "g" low)
~~g
> `cord`(scan "g" low)
'g'
> (scan "abcdefghijklmnopqrstuvwxyz" (star low))
"abcdefghijklmnopqrstuvwxyz"
> (low [[1 1] "g"])
[p=[p=1 q=2] q=[~ [p=~~g q=[p=[p=1 q=2] q=""]]]]++mes
Hexbyte
Parse a hexbyte.
Source
++ mes %+ cook :: hexbyte
|=({a/@ b/@} (add (mul 16 a) b))
;~(plug hit hit)
Examples
> (scan "2A" mes)
42
> (mes [[1 1] "2A"])
[p=[p=1 q=3] q=[~ u=[p=42 q=[p=[p=1 q=3] q=""]]]]
> (scan "42" mes)
66++nix
Letters and -
Parse Letters and -.
Source
++ nix (boss 256 (star ;~(pose aln cab))) ::
Examples
> (scan "as_me" nix)
q=435.626.668.897
> `@t`(scan "as_me" nix)
'as_me'++nud
Numeric
Parse a numeric character - A number.
Source
++ nud (shim '0' '9') :: numeric
Examples
> (scan "0" nud)
~~0
> (scan "7" nud)
~~7
> (nud [[1 1] "1"])
[p=[p=1 q=2] q=[~ [p=~~1 q=[p=[p=1 q=2] q=""]]]]
> (scan "0123456789" (star nud))
"0123456789"++prn
Printable character
Parse any printable character.
Source
++ prn ;~(less (just `@`127) (shim 32 256))
Examples
> (scan "h" prn)
~~h
> (scan "!" prn)
~~~21.
> (scan "\01" prn)
! {1 1}
! exit++qit
Chars in cord
Parse an individual character to its cord atom representation.
Source
++ qit ;~ pose :: chars in a cord
;~(less bas soq prn)
;~(pfix bas ;~(pose bas soq mes)) :: escape chars
==
Examples
> (scan "%" qit)
37
> `@t`(scan "%" qit)
'%'
> (scan "0" qit)
48
> (scan "E" qit)
69
> (scan "a" qit)
97
> (scan "\\0a" qit)
10
> `@ux`(scan "\\0a" qit)
0xa
> (scan "cord" (star qit))
~[99 111 114 100]++qit
Chars in cord
Parse an individual character to its cord atom representation.
Source
++ qit ;~ pose :: chars in a cord
;~(less bas soq prn)
;~(pfix bas ;~(pose bas soq mes)) :: escape chars
==
Examples
> (scan "%" qit)
37
> `@t`(scan "%" qit)
'%'
> (scan "0" qit)
48
> (scan "E" qit)
69
> (scan "a" qit)
97
> (scan "\\0a" qit)
10
> `@ux`(scan "\\0a" qit)
0xa
> (scan "cord" (star qit))
~[99 111 114 100]++qut
Cord
Parse single-soq cord with \{gap}/ anywhere in the middle, or triple-single
quote (aka triple-soq) cord, between which must be in an indented block.
Source
++ qut ;~ pose :: cord
;~ less soqs
(ifix [soq soq] (boss 256 (more gon qit)))
==
%- inde %+ ifix
:- ;~ plug soqs
;~(pose ;~(plug (plus ace) vul) (just '\0a'))
==
;~(plug (just '\0a') soqs)
(boss 256 (star qat))
==
::
Examples
> (scan "'cord'" qut)
q=1.685.221.219
> 'cord'
'cord'
> `@ud`'cord'
1.685.221.219
> '''
Heredoc isn't prohibited from containing quotes
'''
'Heredoc isn't prohibited from containing quotes'++soz
Delimiting '''
Parse a triple-single quote, used for multiline strings.
Source
++ soz ;~(plug soq soq soq) :: delimiting '''
Examples
> (scan "'''" soz)
[~~~27. ~~~27. ~~~27.]
> (rash '"""' soz)
! {1 1}
! exit++sym
Term
A term: a letter(lowercase), followed by letters, numbers, or -.
Source
++ sym
%+ cook
|=(a=tape (rap 3 ^-((list ,@) a)))
;~(plug low (star ;~(pose nud low hep)))
::
Examples
> (scan "sam-2" sym)
215.510.507.891
> `@t`(scan "sam-2" sym)
'sam-2'
> (scan "sym" sym)
7.174.515++ven
+>- axis syntax
Axis syntax parser
Source
++ ven ;~ (comp |=({a/@ b/@} (peg a b))) :: +>- axis syntax
bet
=+ hom=`?`|
|= tub/nail
^- (like axis)
=+ vex=?:(hom (bet tub) (gul tub))
?~ q.vex
[p.tub [~ 1 tub]]
=+ wag=$(p.tub p.vex, hom !hom, tub q.u.q.vex)
?> ?=(^ q.wag)
[p.wag [~ (peg p.u.q.vex p.u.q.wag) q.u.q.wag]]
==
Examples
~zod/arvo=/hoon/hoon> (scan "->+" ven)
11
~zod/arvo=/hoon/hoon> `@ub`(scan "->+" ven)
0b1011
~zod/arvo=/hoon/hoon> (peg (scan "->" ven) (scan "+" ven))
11
~zod/arvo=/hoon/hoon> ->+:[[1 2 [3 4]] 5]
[3 4]++vit
Base64 digit
Parse a standard base64 digit.
Source
++ vit :: base64 digit
;~ pose
(cook |=(a/@ (sub a 65)) (shim 'A' 'Z'))
(cook |=(a/@ (sub a 71)) (shim 'a' 'z'))
(cook |=(a/@ (add a 4)) (shim '0' '9'))
(cold 62 (just '-'))
(cold 63 (just '+'))
==
Examples
~zod/arvo=/hoon/hoon> (scan "C" vit)
2
~zod/arvo=/hoon/hoon> (scan "c" vit)
28
~zod/arvo=/hoon/hoon> (scan "2" vit)
54
~zod/arvo=/hoon/hoon> (scan "-" vit)
62++vul
Comments to null
Source
++ vul %+ cold ~ :: comments
;~ plug col col
(star prn)
(just `@`10)
==
Parse comments and produce a null. Note that a comment must be ended with a newline character.
Examples
> (scan "::this is a comment \0a" vul)
~
> (scan "::this is a comment " vul)
! {1 21}
! exit