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Merge pull request #1069 from urbit/next
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:: |number-to-words: conversion of unsigned integers to a tape | ||
:: | ||
:: returns a unit because not all numbers can always be represented | ||
:: | ||
|% | ||
++ numbers | ||
|% | ||
++ ten 10 | ||
++ one-hundred 100 | ||
++ one-thousand (pow 10 3) | ||
++ one-million (pow 10 6) | ||
++ one-billion (pow 10 9) | ||
++ one-trillion (pow 10 12) | ||
++ one-quadrillion (pow 10 15) | ||
++ one-quintillion (pow 10 18) | ||
++ one-sextillion (pow 10 21) | ||
++ one-septillion (pow 10 24) | ||
++ one-octillion (pow 10 27) | ||
++ one-nonillion (pow 10 30) | ||
++ one-decillion (pow 10 33) | ||
++ one-undecillion (pow 10 36) | ||
++ one-duodecillion (pow 10 39) | ||
++ one-tredecillion (pow 10 42) | ||
++ one-quattuordecillion (pow 10 45) | ||
++ one-quindecillion (pow 10 48) | ||
++ one-sexdecillion (pow 10 51) | ||
++ one-septendecillion (pow 10 54) | ||
++ one-octodecillion (pow 10 57) | ||
++ one-novemdecillion (pow 10 60) | ||
++ one-vigintillion (pow 10 63) | ||
++ max (pow 10 66) | ||
-- | ||
++ eng-us | ||
|% | ||
++ to-words | ||
|= num=@u | ||
^- (unit tape) | ||
=+ numbers | ||
?: (gte num max) | ||
~ | ||
:- ~ | ||
|- | ||
^- tape | ||
:: 0-19 | ||
?: =(num 0) "zero" | ||
?: =(num 1) "one" | ||
?: =(num 2) "two" | ||
?: =(num 3) "three" | ||
?: =(num 4) "four" | ||
?: =(num 5) "five" | ||
?: =(num 6) "six" | ||
?: =(num 7) "seven" | ||
?: =(num 8) "eight" | ||
?: =(num 9) "nine" | ||
?: =(num 10) "ten" | ||
?: =(num 11) "eleven" | ||
?: =(num 12) "twelve" | ||
?: =(num 13) "thirteen" | ||
?: =(num 14) "fourteen" | ||
?: =(num 15) "fifteen" | ||
?: =(num 16) "sixteen" | ||
?: =(num 17) "seventeen" | ||
?: =(num 18) "eighteen" | ||
?: =(num 19) "nineteen" | ||
:: 20-99 | ||
:: | ||
:: tpl: tens place | ||
:: rem: ones place | ||
:: sfx: suffix | ||
:: | ||
=/ tpl (div num ten) | ||
=/ rem (mod num ten) | ||
=/ sfx | ||
?: |(=(rem 0) (gte tpl 10)) | ||
~ | ||
['-' $(num rem)] | ||
?: =(tpl 2) (weld "twenty" sfx) | ||
?: =(tpl 3) (weld "thirty" sfx) | ||
?: =(tpl 4) (weld "forty" sfx) | ||
?: =(tpl 5) (weld "fifty" sfx) | ||
?: =(tpl 6) (weld "sixty" sfx) | ||
?: =(tpl 7) (weld "seventy" sfx) | ||
?: =(tpl 8) (weld "eighty" sfx) | ||
?: =(tpl 9) (weld "ninety" sfx) | ||
:: 100-max | ||
:: | ||
:: num-break: repeated pattern from 100 on | ||
:: | ||
=/ num-break | ||
:: | ||
:: min: minimum to qualify for this break | ||
:: str: english word for this break | ||
:: | ||
|= [min=@u str=tape] | ||
=/ rem (mod num min) | ||
;: weld | ||
^$(num (div num min)) | ||
[' ' str] | ||
?: =(rem 0) | ||
~ | ||
%+ weld | ||
?:((lth rem one-hundred) " and " ", ") | ||
^$(num rem) | ||
== | ||
:: | ||
?: (lth num one-thousand) | ||
(num-break one-hundred "hundred") | ||
?: (lth num one-million) | ||
(num-break one-thousand "thousand") | ||
?: (lth num one-billion) | ||
(num-break one-million "million") | ||
?: (lth num one-trillion) | ||
(num-break one-billion "billion") | ||
?: (lth num one-quadrillion) | ||
(num-break one-trillion "trillion") | ||
?: (lth num one-quintillion) | ||
(num-break one-quadrillion "quadrillion") | ||
?: (lth num one-sextillion) | ||
(num-break one-quintillion "quintillion") | ||
?: (lth num one-septillion) | ||
(num-break one-sextillion "sextillion") | ||
?: (lth num one-octillion) | ||
(num-break one-septillion "septillion") | ||
?: (lth num one-nonillion) | ||
(num-break one-octillion "octillion") | ||
?: (lth num one-decillion) | ||
(num-break one-nonillion "nonillion") | ||
?: (lth num one-undecillion) | ||
(num-break one-decillion "decillion") | ||
?: (lth num one-duodecillion) | ||
(num-break one-undecillion "undecillion") | ||
?: (lth num one-tredecillion) | ||
(num-break one-duodecillion "duodecillion") | ||
?: (lth num one-quattuordecillion) | ||
(num-break one-tredecillion "tredecillion") | ||
?: (lth num one-quindecillion) | ||
(num-break one-quattuordecillion "quattuordecillion") | ||
?: (lth num one-sexdecillion) | ||
(num-break one-quindecillion "quindecillion") | ||
?: (lth num one-septendecillion) | ||
(num-break one-sexdecillion "sexdecillion") | ||
?: (lth num one-octodecillion) | ||
(num-break one-septendecillion "septendecillion") | ||
?: (lth num one-novemdecillion) | ||
(num-break one-octodecillion "octodecillion") | ||
?: (lth num one-vigintillion) | ||
(num-break one-novemdecillion "novemdecillion") | ||
(num-break one-vigintillion "vigintillion") | ||
-- | ||
-- |
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