mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-12-22 06:11:31 +03:00
12 KiB
12 KiB
section 2eH, parsing (idioms)
++alf
Alphabetic characters
++ alf ;~(pose low hig) :: alphabetic
Parse alphabetic characters, both upper and lowercase.
~zod/try=> (scan "a" alf)
~~a
~zod/try=> (scan "A" alf)
~~~41.
~zod/try=> (scan "AaBbCc" (star alf))
"AaBbCc"
++aln
Alphanumeric characters
++ aln ;~(pose low hig nud) :: alphanumeric
Parse alphanumeric characters - both alphabetic characters and numbers.
~zod/try=> (scan "0" aln)
~~0
~zod/try=> (scan "alf42" (star aln))
"alf42"
~zod/try=> (scan "0123456789abcdef" (star aln))
"0123456789abcdef"
++alp
Alphanumeric and -
++ alp ;~(pose low hig nud hep) :: alphanumeric and -
Parse alphanumeric strings and hep, "-".
~zod/try=> (scan "7" alp)
~~7
~zod/try=> (scan "s" alp)
~~s
~zod/try=> (scan "123abc-" (star alp))
"123abc-"
++bet
Axis syntax -, +
++ bet ;~(pose (cold 2 hep) (cold 3 lus)) :: axis syntax - +
Parse the hep and lus axis syntax.
~zod/try=> (scan "-" bet)
2
~zod/try=> (scan "+" bet)
3
++bin
Binary to atom
++ bin (bass 2 (most gon but)) :: binary to atom
Parse a tape of binary (0s and 1s) and produce its atomic representation.
~zod/try=> (scan "0000" bin)
0
~zod/try=> (scan "0001" bin)
1
~zod/try=> (scan "0010" bin)
2
~zod/try=> (scan "100000001111" bin)
2.063
++but
Binary digit
++ but (cook |=(a=@ (sub a '0')) (shim '0' '1')) :: binary digit
Parse a single binary digit.
~zod/try=> (scan "0" but)
0
~zod/try=> (scan "1" but)
1
~zod/try=> (scan "01" but)
! {1 2}
! 'syntax-error'
! exit
~zod/try=> (scan "01" (star but))
~[0 1]
++cit
Octal digit
++ cit (cook |=(a=@ (sub a '0')) (shim '0' '7')) :: octal digit
Parse a single octal digit.
~zod/try=> (scan "1" cit)
1
~zod/try=> (scan "7" cit)
7
~zod/try=> (scan "8" cit)
! {1 1}
! 'syntax-error'
! exit
~zod/try=> (scan "60" (star cit))
~[6 0]
++dem
Decimal to atom
++ dem (bass 10 (most gon dit)) :: decimal to atom
Parse a decimal number to an atom.
~zod/try=> (scan "7" dem)
7
~zod/try=> (scan "42" dem)
42
~zod/try=> (scan "150000000" dem)
150.000.000
~zod/try=> (scan "12456" dem)
12.456
++dit
Decimal digit
++ dit (cook |=(a=@ (sub a '0')) (shim '0' '9')) :: decimal digit
Parse a single decimal digit.
~zod/try=> (scan "7" dit)
7
~zod/try=> (scan "42" (star dit))
~[4 2]
~zod/try=> (scan "26000" (star dit))
~[2 6 0 0 0]
++gul
Axis syntax < or >
++ gul ;~(pose (cold 2 gal) (cold 3 gar)) :: axis syntax < >
Parse the axis gal and gar axis syntax.
~zod/try=> (scan "<" gul)
2
~zod/try=> (scan ">" gul)
3
++gon
Long numbers
++ gon ;~(pose ;~(plug bas gay fas) (easy ~)) :: long numbers \ /
Parse long numbers - Numbers which wrap around the shell with the line break characters bas and fas.
~zod/try=> (scan "\\/" gon)
[~~~5c. ~ ~~~2f.]
~zod/try=> (gon [[1 1] "\\/"])
[p=[p=1 q=3] q=[~ u=[p=[~~~5c. ~ ~~~2f.] q=[p=[p=1 q=3] q=""]]]]
++hex
Hex to atom
++ hex (bass 16 (most gon hit)) :: hex to atom
Parse any hexadecimal number to an atom.
~zod/try=> (scan "a" hex)
10
~zod/try=> (scan "A" hex)
10
~zod/try=> (scan "2A" hex)
42
~zod/try=> (scan "1ee7" hex)
7.911
~zod/try=> (scan "1EE7" hex)
7.911
~zod/try=> (scan "1EE7F7" hex)
2.025.463
~zod/try=> `@ux`(scan "1EE7F7" hex)
0x1e.e7f7
++hig
Uppercase
++ hig (shim 'A' 'Z') :: uppercase
Parse a single uppercase letter.
~zod/try=> (scan "G" hig)
~~~47.
~zod/try=> `cord`(scan "G" hig)
'G'
~zod/try=> (scan "ABCDEFGHIJKLMNOPQRSTUVWXYZ" (star hig))
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
~zod/try=> (hig [[1 1] "G"])
[p=[p=1 q=2] q=[~ [p=~~~47. q=[p=[p=1 q=2] q=""]]]]
++hit
Hex digits
++ hit ;~ pose :: hex digits
dit
(cook |=(a=char (sub a 87)) (shim 'a' 'f'))
(cook |=(a=char (sub a 55)) (shim 'A' 'F'))
==
Parse a single hexadecimal digit.
~zod/try=> (scan "a" hit)
10
~zod/try=> (scan "A" hit)
10
~zod/try=> (hit [[1 1] "a"])
[p=[p=1 q=2] q=[~ [p=10 q=[p=[p=1 q=2] q=""]]]]
~zod/try=> (scan "2A" (star hit))
~[2 10]
++low
Lowercase
++ low (shim 'a' 'z') :: lowercase
Parse a single lowercase letter.
~zod/try=> (scan "g" low)
~~g
~zod/try=> `cord`(scan "g" low)
'g'
~zod/try=> (scan "abcdefghijklmnopqrstuvwxyz" (star low))
"abcdefghijklmnopqrstuvwxyz"
~zod/try=> (low [[1 1] "g"])
[p=[p=1 q=2] q=[~ [p=~~g q=[p=[p=1 q=2] q=""]]]]
++mes
Hexbyte
++ mes %+ cook :: hexbyte
|=([a=@ b=@] (add (mul 16 a) b))
;~(plug hit hit)
Parse a hexbyte.
~zod/try=> (scan "2A" mes)
42
~zod/try=> (mes [[1 1] "2A"])
[p=[p=1 q=3] q=[~ u=[p=42 q=[p=[p=1 q=3] q=""]]]]
~zod/try=> (scan "42" mes)
66
++nix
Letters, -, and _
++ nix (boss 256 (star ;~(pose aln cab))) ::
Letters, -, and _
~zod/try=> (scan "as_me" nix)
q=435.626.668.897
~zod/try=> `@t`(scan "as_me" nix)
'as_me'
++nud
Numeric
++ nud (shim '0' '9') :: numeric
Parse a numeric character - A number.
~zod/try=> (scan "0" nud)
~~0
~zod/try=> (scan "7" nud)
~~7
~zod/try=> (nud [[1 1] "1"])
[p=[p=1 q=2] q=[~ [p=~~1 q=[p=[p=1 q=2] q=""]]]]
~zod/try=> (scan "0123456789" (star nud))
"0123456789"
++prn
Printable character
++ prn ;~(less (just `@`127) (shim 32 256))
Parse any printable character
~zod/try=> (scan "h" prn)
~~h
~zod/try=> (scan "!" prn)
~~~21.
~zod/try=> (scan "\01" prn)
! {1 1}
! exit
++qat
Chars in blockcord
++ qat ;~ pose :: chars in blockcord
prn
;~(less ;~(plug (just `@`10) soqs) (just `@`10))
==
Parse character in cord block.
~zod/try=> (scan "h" qat)
~~h
~zod/try=> (scan "!" qat)
~~~21.
~zod/try=> (scan "\0a" qat)
~~~a.
~zod/try=> (scan "\00" qat)
! {1 1}
! exit
++qit
Chars in cord
++ qit ;~ pose :: chars in a cord
;~(less bas soq prn)
;~(pfix bas ;~(pose bas soq mes)) :: escape chars
==
Parse an individual character to its cord atom representation.
~zod/try=> (scan "%" qit)
37
~zod/try=> `@t`(scan "%" qit)
'%'
~zod/try=> (scan "0" qit)
48
~zod/try=> (scan "E" qit)
69
~zod/try=> (scan "a" qit)
97
~zod/try=> (scan "\\0a" qit)
10
~zod/try=> `@ux`(scan "\\0a" qit)
0xa
~zod/try=> (scan "cord" (star qit))
~[99 111 114 100]
++qut
Cord
++ 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))
==
::
Parse single-soq cord with \{gap}/ anywhere in the middle, or
triple-soq cord which must be in an indented block.
~zod/try=> (scan "'cord'" qut)
q=1.685.221.219
~zod/try=> 'cord'
'cord'
~zod/try=> `@ud`'cord'
1.685.221.219
/~zod/try=> '''
Heredoc isn't prohibited from containing quotes
'''
'Heredoc isn't prohibited from containing quotes'
++soqs
Delimiting '''
++ soqs ;~(plug soq soq soq) :: delimiting '''
Triple single quote
~zod/try=> (scan "'''" soqs)
[~~~27. ~~~27. ~~~27.]
~zod/try=> (rash '"""' soqs)
! {1 1}
! exit
++sym
Term
++ sym
%+ cook
|=(a=tape (rap 3 ^-((list ,@) a)))
;~(plug low (star ;~(pose nud low hep)))
::
A term: a letter(lowercase), followed by letters, numbers, or -.
~zod/try=> (scan "sam-2" sym)
215.510.507.891
~zod/try=> `@t`(scan "sam-2" sym)
'sam-2'
~zod/try=> (scan "sym" sym)
7.174.515
++ven
+>- axis syntax
++ 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]]
==
Axis syntax parser
~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
++ 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 '+'))
==
Terran base64
~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