Numerical and alphabetical suffixes

Numerical and alphabetical suffixes
You are encouraged to solve this task according to the task description, using any language you may know.

This task is about expressing numbers with an attached (abutted) suffix multiplier(s),   the suffix(es) could be:

•   an alphabetic (named) multiplier which could be abbreviated
•    metric  multiplier(s) which can be specified multiple times
•   "binary" multiplier(s) which can be specified multiple times
•   explanation marks (!) which indicate a factorial or multifactorial

The (decimal) numbers can be expressed generally as:

```             {±}   {digits}   {.}   {digits}
────── or ──────
{±}   {digits}   {.}   {digits}   {E or e}   {±}   {digits}
```

where:

•   numbers won't have embedded blanks   (contrary to the expaciated examples above where whitespace was used for readability)
•   this task will only be dealing with decimal numbers,   both in the   mantissa   and   exponent
•   ±   indicates an optional plus or minus sign   (+   or   -)
•   digits are the decimal digits   (0 ──► 9)
•   the digits can have comma(s) interjected to separate the   periods   (thousands)   such as:   12,467,000
•   .   is the decimal point, sometimes also called a   dot
•   e   or   E   denotes the use of decimal exponentiation   (a number multiplied by raising ten to some power)

This isn't a pure or perfect definition of the way we express decimal numbers,   but it should convey the intent for this task.

The use of the word   periods   (thousands) is not meant to confuse, that word (as used above) is what the comma separates;
the groups of decimal digits are called periods,   and in almost all cases, are groups of three decimal digits.

If an   e   or   E   is specified, there must be a legal number expressed before it,   and there must be a legal (exponent) expressed after it.

Also, there must be some digits expressed in all cases,   not just a sign and/or decimal point.

Superfluous signs, decimal points, exponent numbers, and zeros   need not be preserved.

I.E.:       +7   007   7.00   7E-0   7E000   70e-1     could all be expressed as 7

All numbers to be "expanded" can be assumed to be valid and there won't be a requirement to verify their validity.

Abbreviated alphabetic suffixes to be supported   (where the capital letters signify the minimum abbreation that can be used)
```     PAIRs         multiply the number by  2         (as in pairs of shoes or pants)
SCOres        multiply the number by  20        (as 3score would be 60)
DOZens        multiply the number by  12
GRoss         multiply the number by  144       (twelve dozen)
GREATGRoss    multiply the number by  1,728     (a dozen gross)
GOOGOLs       multiply the number by  10^100    (ten raised to the 100&sup>th power)
```

Note that the plurals are supported, even though they're usually used when expressing exact numbers   (She has 2 dozen eggs, and dozens of quavas)

Metric suffixes to be supported   (whether or not they're officially sanctioned)
```     K     multiply the number by  10^3              kilo      (1,000)
M     multiply the number by  10^6              mega      (1,000,000)
G     multiply the number by  10^9              giga      (1,000,000,000)
T     multiply the number by  10^12             tera      (1,000,000,000,000)
P     multiply the number by  10^15             peta      (1,000,000,000,000,000)
E     multiply the number by  10^18             exa       (1,000,000,000,000,000,000)
Z     multiply the number by  10^21             zetta     (1,000,000,000,000,000,000,000)
Y     multiply the number by  10^24             yotta     (1,000,000,000,000,000,000,000,000)
X     multiply the number by  10^27             xenta     (1,000,000,000,000,000,000,000,000,000)
W     multiply the number by  10^30             wekta     (1,000,000,000,000,000,000,000,000,000,000)
V     multiply the number by  10^33             vendeka   (1,000,000,000,000,000,000,000,000,000,000,000)
U     multiply the number by  10^36             udekta    (1,000,000,000,000,000,000,000,000,000,000,000,000)
```

Binary suffixes to be supported   (whether or not they're officially sanctioned)
```     Ki    multiply the number by  2^10              kibi      (1,024)
Mi    multiply the number by  2^20              mebi      (1,048,576)
Gi    multiply the number by  2^30              gibi      (1,073,741,824)
Ti    multiply the number by  2^40              tebi      (1,099,571,627,776)
Pi    multiply the number by  2^50              pebi      (1,125,899,906,884,629)
Ei    multiply the number by  2^60              exbi      (1,152,921,504,606,846,976)
Zi    multiply the number by  2^70              zeb1      (1,180,591,620,717,411,303,424)
Yi    multiply the number by  2^80              yobi      (1,208,925,819,614,629,174,706,176)
Xi    multiply the number by  2^90              xebi      (1,237,940,039,285,380,274,899,124,224)
Wi    multiply the number by  2^100             webi      (1,267,650,600,228,229,401,496,703,205,376)
Vi    multiply the number by  2^110             vebi      (1,298,074,214,633,706,907,132,624,082,305,024)
Ui    multiply the number by  2^120             uebi      (1,329,227,995,784,915,872,903,807,060,280,344,576)
```

All of the metric and binary suffixes can be expressed in   lowercase,   uppercase,   or   mixed case.

All of the metric and binary suffixes can be   stacked   (expressed multiple times),   and also be intermixed:
I.E.:       123k   123K   123GKi   12.3GiGG   12.3e-7T   .78E100e

Factorial suffixes to be supported
```     !      compute the (regular) factorial product:   5!   is  5 × 4 × 3 × 2 × 1  =  120
!!     compute the  double   factorial product:   8!   is  8 × 6 × 4 × 2      =  384
!!!    compute the  triple   factorial product:   8!   is  8 × 5 × 2          =   80
!!!!   compute the quadruple factorial product:   8!   is  8 × 4              =   32
!!!!!  compute the quintuple factorial product:   8!   is  8 × 3              =   24
··· the number of factorial symbols that can be specified is to be unlimited   (as per what can be entered/typed) ···
```

Factorial suffixes aren't, of course, the usual type of multipliers, but are used here in a similar vein.

Multifactorials aren't to be confused with   super─factorials     where   (4!)!   would be   (24)!.

Task
•   Using the test cases (below),   show the "expanded" numbers here, on this page.
•   For each list, show the input on one line,   and also show the output on one line.
•   When showing the input line, keep the spaces (whitespace) and case (capitalizations) as is.
•   For each result (list) displayed on one line, separate each number with two blanks.
•   Add commas to the output numbers were appropriate.

Test cases
```    2greatGRo   24Gros  288Doz  1,728pairs  172.8SCOre
1,567      +1.567k    0.1567e-2m
25.123kK    25.123m   2.5123e-00002G
25.123kiKI  25.123Mi  2.5123e-00002Gi  +.25123E-7Ei
-.25123e-34Vikki      2e-77gooGols
9!   9!!   9!!!   9!!!!   9!!!!!   9!!!!!!   9!!!!!!!   9!!!!!!!!   9!!!!!!!!!
```

where the last number for the factorials has nine factorial symbols   (!)   after the   9

Related tasks
•   Multifactorial                 (which has a clearer and more succinct definition of multifactorials.)
•   Factorial

Factor

Functional

```USING: combinators combinators.short-circuit formatting fry
grouping grouping.extras kernel literals math math.functions
math.parser math.ranges qw regexp sequences sequences.deep
sequences.extras sets splitting unicode ;
IN: rosetta-code.numerical-suffixes

CONSTANT: test-cases {
qw{ 2greatGRo 24Gros 288Doz 1,728pairs 172.8SCOre }
qw{ 1,567 +1.567k 0.1567e-2m }
qw{ 25.123kK 25.123m 2.5123e-00002G }
qw{ 25.123kiKI 25.123Mi 2.5123e-00002Gi +.25123E-7Ei }
qw{ -.25123e-34Vikki 2e-77gooGols }
qw{
9! 9!! 9!!! 9!!!! 9!!!!! 9!!!!!! 9!!!!!!! 9!!!!!!!!
9!!!!!!!!!
}
}

CONSTANT: alpha {
{ "PAIRs" 2 } { "DOZens" 12 } { "SCOres" 20 }
{ "GRoss" 144 } { "GREATGRoss" 1,728 }
\${ "GOOGOLs" 10 100 ^ }
}

CONSTANT: metric qw{ K M G T P E Z Y X W V U }

! Multifactorial
: m! ( n degree -- m ) neg 1 swap <range> product ;

! Separate a number from its suffix(es).
! e.g. "+1.567k" -> 1.567 "k"
: num/suffix ( str -- n suffix(es) )
dup <head-clumps> <reversed> { } like "" map-like
[ string>number ] map [ ] find [ tail* ] dip swap ;

! Checks whether str1 is an abbreviation of str2.
! e.g. "greatGRo" "GREATGRoss" -> t
: abbrev? ( str1 str2 -- ? )
{
[ [ >upper ] [ [ LETTER? ] take-while head? ] bi* ]
[ [ length ] bi@ <= ]
} 2&& ;

! Convert an alpha suffix to its multiplication function.
! e.g. "Doz" -> [ 12 * ]
: alpha>quot ( str -- quot )
[ alpha ] dip '[ first _ swap abbrev? ] find nip second
[ * ] curry ;

! Split a suffix composed of metric and binary suffixes into its
! constituent parts. e.g. "Vikki" -> { "Vi" "k" "ki" }
: split-compound ( str -- seq )
R/ (.i|.)/i all-matching-subseqs ;

! Convert a metric or binary suffix to its multiplication
! function. e.g. "k" -> [ 10 3 ^ * ]
: suffix>quot ( str -- quot )
dup [ [ 0 1 ] dip subseq >upper metric index 1 + ] dip
length 1 = [ 3 * '[ 10 _ ^ * ] ] [ 10 * '[ 2 _ ^ * ] ] if ;

! Apply suffix>quot to each member of a sequence.
! e.g. { "Vi" "k" "ki" } ->
! [ [ 2 110 ^ * ] [ 10 3 ^ * ] [ 2 10 ^ * ] ]
: map-suffix ( seq -- seq' ) [ suffix>quot ] [ ] map-as ;

! Tests whether a string is composed of metric and/or binary
! suffixes. e.g. "Vikki" -> t
: compound? ( str -- ? )
>upper metric concat "I" append without empty? ;

! Convert a float to an integer if it is numerically equivalent
! to an integer. e.g. 1.0 -> 1, 1.23 -> 1.23
: ?f>i ( x -- y/n )
dup >integer 2dup [ number= ] 2dip swap ? ;

! Convert a suffix string to a function that performs the
! calculations required by the suffix.
! e.g. "!!!" -> [ 3 m! ], "kiKI" -> [ 2 10 ^ * 2 10 ^ * ]
: parse-suffix ( str -- quot )
{
{ [ dup empty? ] [ drop [ ] ] }
{ [ dup first CHAR: ! = ] [ length [ m! ] curry ] }
{ [ dup compound? ] [ split-compound map-suffix ] }
[ alpha>quot ]
} cond flatten ;

GENERIC: commas ( n -- str )

! Add commas to an integer in triplets.
! e.g. 1567 -> "1,567"
M: integer commas number>string <reversed> 3 group
[ "," append ] map concat reverse rest ;

! Add commas to a float in triplets.
! e.g. 1567.12345 -> "1,567.12345"
M: float commas number>string "." split first2
[ string>number commas ] dip "." glue ;

! Parse any number with any numerical or alphabetical suffix.
! e.g. "288Doz" -> "3,456", "9!!" -> "945"
: parse-alpha ( str -- str' )
num/suffix parse-suffix curry call( -- x ) ?f>i commas ;

: main ( -- )
test-cases [
dup [ parse-alpha ] map
"Numbers: %[%s, %]\n Result: %[%s, %]\n\n" printf
] each ;

MAIN: main
```
Output:
```Numbers: { 2greatGRo, 24Gros, 288Doz, 1,728pairs, 172.8SCOre }
Result: { 3,456, 3,456, 3,456, 3,456, 3,456 }

Numbers: { 1,567, +1.567k, 0.1567e-2m }
Result: { 1,567, 1,567, 1,567 }

Numbers: { 25.123kK, 25.123m, 2.5123e-00002G }
Result: { 25,123,000, 25,123,000, 25,123,000 }

Numbers: { 25.123kiKI, 25.123Mi, 2.5123e-00002Gi, +.25123E-7Ei }
Result: { 26,343,374.848, 26,343,374.848, 26,975,615.844352, 28,964,846,960.23782 }

Numbers: { -.25123e-34Vikki, 2e-77gooGols }
Result: { -33,394.19493810444, 199,999,999,999,999,983,222,784 }

Numbers: { 9!, 9!!, 9!!!, 9!!!!, 9!!!!!, 9!!!!!!, 9!!!!!!!, 9!!!!!!!!, 9!!!!!!!!! }
Result: { 362,880, 945, 162, 45, 36, 27, 18, 9, 9 }
```

EBNF

This solution uses Factor's extended Backus-Naur form (EBNF) language to define a grammar for parsing numerical/alphabetical suffix numbers. The goal was to describe as much of the suffix-number as possible in a declarative manner, minimizing the use of actions (Factor code that is run on a rule before being added to the abstract syntax tree) and helper functions. The biggest departure from this goal was to parse the metric/binary suffixes based on their index in a collection, as this method is less verbose than defining a rule for each suffix.

```USING: formatting fry grouping kernel literals math
math.functions math.parser math.ranges multiline peg.ebnf
quotations qw sequences sequences.deep splitting strings unicode ;
IN: rosetta-code.numerical-suffixes.ebnf

CONSTANT: test-cases {
qw{ 2greatGRo 24Gros 288Doz 1,728pairs 172.8SCOre }
qw{ 1,567 +1.567k 0.1567e-2m }
qw{ 25.123kK 25.123m 2.5123e-00002G }
qw{ 25.123kiKI 25.123Mi 2.5123e-00002Gi +.25123E-7Ei }
qw{ -.25123e-34Vikki 2e-77gooGols }
qw{
9! 9!! 9!!! 9!!!! 9!!!!! 9!!!!!! 9!!!!!!! 9!!!!!!!!
9!!!!!!!!!
}
}

CONSTANT: metric qw{ K M G T P E Z Y X W V U }

: suffix>quot ( str -- quot )
dup [ [ 0 1 ] dip subseq >upper metric index 1 + ] dip
length 1 = [ 3 * '[ 10 _ ^ * ] ] [ 10 * '[ 2 _ ^ * ] ] if ;

: ?f>i ( x -- y/n ) dup >integer 2dup [ number= ] 2dip swap ? ;

GENERIC: commas ( n -- str )
M: integer commas number>string <reversed> 3 group
[ "," append ] map concat reverse rest ;

M: float commas number>string "." split first2
[ string>number commas ] dip "." glue ;

EBNF: suffix-num [=[
sign    = [+-]
digit   = [0-9]
triplet = digit digit digit
commas  = (triplet | digit digit | digit) ([,] triplet)+
integer = sign? (commas | digit+)
exp     = [Ee] sign? digit+
bfloat  = (integer | sign)? [.] digit+ exp?
float   = (bfloat | integer exp)
number  = (float | integer) => [[ flatten "" like string>number ]]
pairs   = [Pp] [Aa] [Ii] [Rr] [s]?           => [[ [ 2 * ] ]]
dozens  = [Dd] [Oo] [Zz] [e]? [n]? [s]?      => [[ [ 12 * ] ]]
scores  = [Ss] [Cc] [Oo] [r]? [e]? [s]?      => [[ [ 20 * ] ]]
gross   = [Gg] [Rr] [o]? [s]? [s]?           => [[ [ 144 * ] ]]
gg      = [Gg] [Rr] [Ee] [Aa] [Tt] gross     => [[ [ 1728 * ] ]]
googols = [Gg] [Oo] [Oo] [Gg] [Oo] [Ll] [s]? => [[ [ \$[ 10 100 ^ ] * ] ]]
alpha   = (pairs | dozens | scores | gg | gross | googols)
numeric = ([KkMmGgPpEeT-Zt-z] [Ii]?) => [[ flatten "" like suffix>quot ]]
ncompnd = numeric+
fact    = [!]+ => [[ length [ neg 1 swap <range> product ] curry ]]
suffix  = (alpha | ncompnd | fact)
s-num   = number suffix? !(.) =>
[[ >quotation flatten call( -- x ) ?f>i commas ]]
]=]

: num-alpha-suffix-demo ( -- )
test-cases [
dup [ suffix-num ] map
"Numbers: %[%s, %]\n Result: %[%s, %]\n\n" printf
] each ;

MAIN: num-alpha-suffix-demo
```
Output:
```Numbers: { 2greatGRo, 24Gros, 288Doz, 1,728pairs, 172.8SCOre }
Result: { 3,456, 3,456, 3,456, 3,456, 3,456 }

Numbers: { 1,567, +1.567k, 0.1567e-2m }
Result: { 1,567, 1,567, 1,567 }

Numbers: { 25.123kK, 25.123m, 2.5123e-00002G }
Result: { 25,123,000, 25,123,000, 25,123,000 }

Numbers: { 25.123kiKI, 25.123Mi, 2.5123e-00002Gi, +.25123E-7Ei }
Result: { 26,343,374.848, 26,343,374.848, 26,975,615.844352, 28,964,846,960.23782 }

Numbers: { -.25123e-34Vikki, 2e-77gooGols }
Result: { -33,394.19493810444, 199,999,999,999,999,983,222,784 }

Numbers: { 9!, 9!!, 9!!!, 9!!!!, 9!!!!!, 9!!!!!!, 9!!!!!!!, 9!!!!!!!!, 9!!!!!!!!! }
Result: { 362,880, 945, 162, 45, 36, 27, 18, 9, 9 }
```

Go

```package main

import (
"fmt"
"math"
"math/big"
"strconv"
"strings"
)

type minmult struct {
min  int
mult float64
}

var abbrevs = map[string]minmult{
"PAIRs": {4, 2}, "SCOres": {3, 20}, "DOZens": {3, 12},
"GRoss": {2, 144}, "GREATGRoss": {7, 1728}, "GOOGOLs": {6, 1e100},
}

var metric = map[string]float64{
"K": 1e3, "M": 1e6, "G": 1e9, "T": 1e12, "P": 1e15, "E": 1e18,
"Z": 1e21, "Y": 1e24, "X": 1e27, "W": 1e30, "V": 1e33, "U": 1e36,
}

var binary = map[string]float64{
"Ki": b(10), "Mi": b(20), "Gi": b(30), "Ti": b(40), "Pi": b(50), "Ei": b(60),
"Zi": b(70), "Yi": b(80), "Xi": b(90), "Wi": b(100), "Vi": b(110), "Ui": b(120),
}

func b(e float64) float64 {
return math.Pow(2, e)
}

func googol() *big.Float {
g1 := new(big.Float).SetPrec(500)
g1.SetInt64(10000000000)
g := new(big.Float)
g.Set(g1)
for i := 2; i <= 10; i++ {
g.Mul(g, g1)
}
return g
}

func fact(num string, d int) int {
prod := 1
n, _ := strconv.Atoi(num)
for i := n; i > 0; i -= d {
prod *= i
}
return prod
}

func parse(number string) *big.Float {
bf := new(big.Float).SetPrec(500)
t1 := new(big.Float).SetPrec(500)
t2 := new(big.Float).SetPrec(500)
// find index of last digit
var i int
for i = len(number) - 1; i >= 0; i-- {
if '0' <= number[i] && number[i] <= '9' {
break
}
}
num := number[:i+1]
num = strings.Replace(num, ",", "", -1) // get rid of any commas
suf := strings.ToUpper(number[i+1:])
if suf == "" {
bf.SetString(num)
return bf
}
if suf[0] == '!' {
prod := fact(num, len(suf))
bf.SetInt64(int64(prod))
return bf
}
for k, v := range abbrevs {
kk := strings.ToUpper(k)
if strings.HasPrefix(kk, suf) && len(suf) >= v.min {
t1.SetString(num)
if k != "GOOGOLs" {
t2.SetFloat64(v.mult)
} else {
t2 = googol() // for greater accuracy
}
bf.Mul(t1, t2)
return bf
}
}
bf.SetString(num)
for k, v := range metric {
for j := 0; j < len(suf); j++ {
if k == suf[j:j+1] {
if j < len(suf)-1 && suf[j+1] == 'I' {
t1.SetFloat64(binary[k+"i"])
bf.Mul(bf, t1)
j++
} else {
t1.SetFloat64(v)
bf.Mul(bf, t1)
}
}
}
}
return bf
}

func commatize(s string) string {
if len(s) == 0 {
return ""
}
neg := s[0] == '-'
if neg {
s = s[1:]
}
frac := ""
if ix := strings.Index(s, "."); ix >= 0 {
frac = s[ix:]
s = s[:ix]
}
le := len(s)
for i := le - 3; i >= 1; i -= 3 {
s = s[0:i] + "," + s[i:]
}
if !neg {
return s + frac
}
return "-" + s + frac
}

func process(numbers []string) {
fmt.Print("numbers =  ")
for _, number := range numbers {
fmt.Printf("%s  ", number)
}
fmt.Print("\nresults =  ")
for _, number := range numbers {
res := parse(number)
t := res.Text('g', 50)
fmt.Printf("%s  ", commatize(t))
}
fmt.Println("\n")
}

func main() {
numbers := []string{"2greatGRo", "24Gros", "288Doz", "1,728pairs", "172.8SCOre"}
process(numbers)

numbers = []string{"1,567", "+1.567k", "0.1567e-2m"}
process(numbers)

numbers = []string{"25.123kK", "25.123m", "2.5123e-00002G"}
process(numbers)

numbers = []string{"25.123kiKI", "25.123Mi", "2.5123e-00002Gi", "+.25123E-7Ei"}
process(numbers)

numbers = []string{"-.25123e-34Vikki", "2e-77gooGols"}
process(numbers)

numbers = []string{"9!", "9!!", "9!!!", "9!!!!", "9!!!!!", "9!!!!!!",
"9!!!!!!!", "9!!!!!!!!", "9!!!!!!!!!"}
process(numbers)
}
```
Output:
```numbers =  2greatGRo  24Gros  288Doz  1,728pairs  172.8SCOre
results =  3,456  3,456  3,456  3,456  3,456

numbers =  1,567  +1.567k  0.1567e-2m
results =  1,567  1,567  1,567

numbers =  25.123kK  25.123m  2.5123e-00002G
results =  25,123,000  25,123,000  25,123,000

numbers =  25.123kiKI  25.123Mi  2.5123e-00002Gi  +.25123E-7Ei
results =  26,343,374.848  26,343,374.848  26,975,615.844352  28,964,846,960.237816578048

numbers =  -.25123e-34Vikki  2e-77gooGols
results =  -33,394.194938104441474962344775423096782848  200,000,000,000,000,000,000,000

numbers =  9!  9!!  9!!!  9!!!!  9!!!!!  9!!!!!!  9!!!!!!!  9!!!!!!!!  9!!!!!!!!!
results =  362,880  945  162  45  36  27  18  9  9
```

Julia

```using Formatting

partialsuffixes = Dict("PAIR" => "PAIRS", "SCO" => "SCORES", "DOZ" => "DOZENS",
"GR" => "GROSS", "GREATGR" => "GREATGROSS", "GOOGOL" => "GOOGOLS")
partials = sort(collect(keys(partialsuffixes)), lt=(a,b)->length(a)<length(b), rev=true)

multicharsuffixes = Dict("PAIRS" => 2, "SCORES" => 20, "DOZENS" => 12, "GROSS" => 144,
"GREATGROSS" => 1728, "GOOGOLS" => BigInt(10)^100)

twocharsuffixes = Dict(
"KI" => BigInt(2)^10, "MI" => BigInt(2)^20, "GI" => BigInt(2)^30, "TI" => BigInt(2)^40,
"PI" => BigInt(2)^50, "EI" => BigInt(2)^60, "ZI" => BigInt(2)^70, "YI" => BigInt(2)^80,
"XI" => BigInt(2)^90, "WI" => BigInt(2)^100, "VI" => BigInt(2)^110, "UI" => BigInt(2)^120)
twosuff = collect(keys(twocharsuffixes))

onecharsuffixes = Dict("K" => 10^3, "M" => 10^6, "G" => 10^9, "T" => 10^12, "P" => 10^15,
"E" => 10^18, "Z" => 10^21, "Y" => BigInt(10)^24,
"X" => BigInt(10)^27, "W" => BigInt(10)^30,
"V" => BigInt(10)^33, "U" => BigInt(10)^36)
onesuff = collect(keys(onecharsuffixes))

function firstsuffix(s, x)
str = uppercase(s)
if str[1] == '!'
lastbang = something(findfirst(x -> x != '!', str), length(str))
return prod(x:-lastbang:1) / x, lastbang
end
for pstr in partials
if match(Regex("^" * pstr), str) != nothing
fullsuffix = partialsuffixes[pstr]
n = length(pstr)
while n < length(fullsuffix) && n < length(str) && fullsuffix[n+1] == str[n+1]
n += 1
end
return BigInt(multicharsuffixes[fullsuffix]), n
end
end
for pstr in twosuff
if match(Regex("^" * pstr), str) != nothing
return BigInt(twocharsuffixes[pstr]), 2
end
end
for pstr in onesuff
if match(Regex("^" * pstr), str) != nothing
return BigInt(onecharsuffixes[pstr]), 1
end
end
return 1, length(s)
end

function parsesuffix(s, x)
str = s
mult = BigInt(1)
n = 1
while n <= length(str)
multiplier, n = firstsuffix(str, x)
mult *= multiplier
str = str[n+1:end]
end
mult
end

function suffixednumber(s)
if (endnum = findlast(isdigit, s)) == nothing
return NaN
end
x = BigFloat(replace(s[1:endnum], "," => ""))
return x * (endnum < length(s) ? parsesuffix(s[endnum + 1:end], x) : 1)
end

const testcases =
["2greatGRo   24Gros  288Doz  1,728pairs  172.8SCOre",
"1,567      +1.567k    0.1567e-2m",
"25.123kK    25.123m   2.5123e-00002G",
"25.123kiKI  25.123Mi  2.5123e-00002Gi  +.25123E-7Ei",
"-.25123e-34Vikki      2e-77gooGols",
"9!   9!!   9!!!   9!!!!   9!!!!!   9!!!!!!   9!!!!!!!   9!!!!!!!!   9!!!!!!!!!"]

function testsuffixes()
for line in testcases
cases = split(line)
println("Testing: ", string.(cases))
println("Results: ", join(map(x -> format(suffixednumber(x), commas=true), cases), "  "), "\n")
end
end

testsuffixes()
```
Output:
```Testing: ["2greatGRo", "24Gros", "288Doz", "1,728pairs", "172.8SCOre"]
Results: 3,456  3,456  3,456  3,456  3,456

Testing: ["1,567", "+1.567k", "0.1567e-2m"]
Results: 1,567  1,567  1,567

Testing: ["25.123kK", "25.123m", "2.5123e-00002G"]
Results: 25,123,000  25,123,000  25,123,000

Testing: ["25.123kiKI", "25.123Mi", "2.5123e-00002Gi", "+.25123E-7Ei"]
Results: 26,343,374.848  26,343,374.848  26,975,615.844352  28,964,846,960.237817

Testing: ["-.25123e-34Vikki", "2e-77gooGols"]
Results: -33,394.194938  200,000,000,000,000,000,000,000

Testing: ["9!", "9!!", "9!!!", "9!!!!", "9!!!!!", "9!!!!!!", "9!!!!!!!", "9!!!!!!!!", "9!!!!!!!!!"]
Results: 362,880  945  162  45  36  27  18  9  9
```

Nim

```import re, strutils, parseutils, tables, math
const input = """
2greatGRo   24Gros  288Doz  1,728pairs  172.8SCOre
1,567      +1.567k    0.1567e-2m
25.123kK    25.123m   2.5123e-00002G
25.123kiKI  25.123Mi  2.5123e-00002Gi  +.25123E-7Ei
-.25123e-34Vikki      2e-77gooGols
9!   9!!   9!!!   9!!!!   9!!!!!   9!!!!!!   9!!!!!!!   9!!!!!!!!   9!!!!!!!!!
"""
let
abbrAlpha = re(r"(PAIR)(s)?\$|(SCO)(r|re|res)?\$|(DOZ)(e|en|ens)?\$|(GR)(o|os|oss)?\$|(GREATGR)(o|os|oss)?\$|(GOOGOL)(s)?\$",
flags = {reIgnoreCase})
metricBinary = re(r"[KMGTPEZYXWVU]i?", flags = {reIgnoreCase})
factorial = re"!+\$"
const
alphaValues = [2e0, 20e0, 12e0, 144e0, 1728e0, 1e100]
metricBinaryValueTab = {"K": 10.0^3, "KI": 2.0^10, "M": 10.0^6, "MI": 2.0^20,
"G": 10.0^9, "GI": 2.0^30, "T": 10.0^12, "TI": 2.0^40, "P": 10.0^15,
"PI": 2.0^50, "E": 10.0^18, "EI": 2.0^60, "Z": 10.0^21, "ZI": 2.0^70,
"Y": 10.0^24, "YI": 2.0^80, "X": 10.0^27, "XI": 2.0^90, "W": 10.0^30,
"WI": 2.0^100, "V": 10.0^33, "VI": 2.0^110, "U": 10.0^36,
"UI": 2.0^120}.toTable
var
matches: array[12, string]
res, fac: float
suffix: string
proc sepFloat(f: float): string =
var
s = \$f
i, num: int
num = parseInt(s, i)
if num == 0:
return s
else:
return insertSep(\$i, ',', 3)&s[num..^1]
for line in input.splitLines():
if not isEmptyOrWhiteSpace(line):
echo("Input:\n", line, "\nOutput:")
var output = "    "
for raw_number in line.replace(",", "").splitWhiteSpace():
suffix = raw_number[parseutils.parseFloat(raw_number, res)..^1].toUpper()
if suffix.match(abbrAlpha, matches):
for i, v in matches.mpairs():
if i mod 2 == 0 and not v.isEmptyOrWhiteSpace():
res*=alphaValues[i div 2]
v = ""
break
elif suffix.match(factorial):
fac = abs(res)-toFloat(len(suffix))
while fac > 0:
res*=fac
fac-=toFloat(len(suffix))
elif suffix.match(metricBinary):
for m in suffix.findAll(metricBinary):
res*=metricBinaryValueTab[m]
output &= sepFloat(res)&"  "
echo(output)
```
Output:
```
Input:

2greatGRo   24Gros  288Doz  1,728pairs  172.8SCOre

Output:

3,456.0  3,456.0  3,456.0  3,456.0  3,456.0

Input:

1,567      +1.567k    0.1567e-2m

Output:

1,567.0  1,567.0  1,567.0

Input:

25.123kK    25.123m   2.5123e-00002G

Output:

25,123,000.0  25,123,000.0  25,123,000.0

Input:

25.123kiKI  25.123Mi  2.5123e-00002Gi  +.25123E-7Ei

Output:

26,343,374.848  26,343,374.848  26,975,615.844352  28,964,846,960.23782

Input:

-.25123e-34Vikki      2e-77gooGols

Output:

-33,394.19493810444  2e+23

Input:

9!   9!!   9!!!   9!!!!   9!!!!!   9!!!!!!   9!!!!!!!   9!!!!!!!!   9!!!!!!!!!

Output:

362,880.0  945.0  162.0  45.0  36.0  27.0  18.0  9.0  9.0

```

Perl

```#!/usr/bin/perl

use strict; # https://rosettacode.org/wiki/Numerical_and_alphabetical_suffixes
use warnings;

my %suffix = qw( k 1e3 m 1e6 g 1e9 t 1e12 p 1e15 e 1e18 z 1e21 y 1e24 x 1e27
w 1e30 v 1e33 u 1e36 ki 2**10 mi 2**20 gi 2**30 ti 2**40 pi 2**50 ei 2**60
zi 2**70 yi 2**80 xi 2**90 wi 2**100 vi 2**110 ui 2**120 );

local \$" = '  '; # strange rule...
print "numbers = \${_}results = @{[ map suffix(\$_), split ]}\n\n" while <DATA>;

sub suffix
{
my (\$value, \$mods) = shift =~ tr/,//dr =~ /([+-]?[\d.]+(?:e[+-]\d+)?)(.*)/i;
\$value *= \$^R while \$mods =~ /
PAIRs?            (?{       2 })
| SCO(re?)?         (?{      20 })
| DOZ(e(ns?)?)?     (?{      12 })
| GREATGR(o(ss?)?)? (?{    1728 }) # must be before GRoss
| GR(o(ss?)?)?      (?{     144 })
| GOOGOLs?          (?{ 10**100 })
| [kmgtpezyxwvu]i?  (?{ eval \$suffix{ lc \$& } })
| !+ (?{ my \$factor = \$value;
\$value *= \$factor while (\$factor -= length \$&) > 1;
1 })
/gix;
return \$value =~ s/(\..*)|\B(?=(\d\d\d)+(?!\d))/\$1 || ','/ger;
}

__DATA__
2greatGRo   24Gros  288Doz  1,728pairs  172.8SCOre
1,567      +1.567k    0.1567e-2m
25.123kK    25.123m   2.5123e-00002G
25.123kiKI  25.123Mi  2.5123e-00002Gi  +.25123E-7Ei
-.25123e-34Vikki      2e-77gooGols
9!   9!!   9!!!   9!!!!   9!!!!!   9!!!!!!   9!!!!!!!   9!!!!!!!!   9!!!!!!!!!
```
Output:
```numbers = 2greatGRo   24Gros  288Doz  1,728pairs  172.8SCOre
results = 3,456  3,456  3,456  3,456  3,456

numbers = 1,567      +1.567k    0.1567e-2m
results = 1,567  1,567  1,567

numbers = 25.123kK    25.123m   2.5123e-00002G
results = 25,123,000  25,123,000  25,123,000

numbers = 25.123kiKI  25.123Mi  2.5123e-00002Gi  +.25123E-7Ei
results = 26,343,374.848  26,343,374.848  26,975,615.844352  28,964,846,960.2378

numbers = -.25123e-34Vikki      2e-77gooGols
results = -33,394.1949381044  2e+23

numbers = 9!   9!!   9!!!   9!!!!   9!!!!!   9!!!!!!   9!!!!!!!   9!!!!!!!!   9!!!!!!!!!
results = 362,880  945  162  45  36  27  18  9  9

```

Phix

Using bigatom to get the full precision needed for the tests (esp the "Vikki" one).
Note that comma-insertion was added to ba_sprintf() in version 0.8.0.

```with javascript_semantics
include builtins/bigatom.e
{} = ba_scale(34)   -- (min rqd for accuracy on the "Vikki" test)
-- (the default is 25, not quite enough here)

constant suffixes = {{"GREATGRoss",7,1728},
{"GOOGOLs",6,ba_new("1e100")},
{"SCOres",3,20},
{"DOZens",3,12},
{"GRoss",2,144},
{"PAIRs",4,2},
"KMGTPEZYXWVU"}

function decode(string suffix)
bigatom res = BA_ONE
suffix = upper(suffix)
while length(suffix)>0 do
bool found = false
for i=length(suffix) to 2 by -1 do
for s=1 to length(suffixes)-1 do
if i<=length(suffixes[s][1])
and i>=suffixes[s][2]
and suffix[1..i]=upper(suffixes[s][1][1..i]) then
res = ba_mul(res,suffixes[s][3])
suffix = suffix[i+1..\$]
found = true
exit
end if
end for
if found then exit end if
end for
if not found then
integer k = find(suffix[1],suffixes[\$])
if k=0 then ?9/0 end if
if length(suffix)>=2 and suffix[2]='I' then
res = ba_mul(res,ba_power(1024,k))
suffix = suffix[3..\$]
else
res = ba_mul(res,ba_power(1000,k))
suffix = suffix[2..\$]
end if
end if
end while
return res
end function

function facto(bigatom n, integer f)
if f!=0 then
bigatom nf = ba_sub(n,f)
while ba_compare(nf,2)>=0 do
n = ba_mul(n,nf)
nf = ba_sub(nf,f)
end while
end if
return n
end function

constant test_cases = """
2greatGRo  24Gros  288Doz  1,728pairs  172.8SCOre
1,567  +1.567k  0.1567e-2m
25.123kK  25.123m  2.5123e-00002G
25.123kiKI  25.123Mi  2.5123e-00002Gi  +.25123E-7Ei
-.25123e-34Vikki  2e-77gooGols
9! 9!! 9!!! 9!!!! 9!!!!! 9!!!!!! 9!!!!!!! 9!!!!!!!! 9!!!!!!!!!
0.017k!!
"""
constant tests = split(substitute(test_cases,"\n"," "),no_empty:=true)

for i=1 to length(tests) do
string test = tests[i], suffix = "", facts = ""
for f=length(test) to 1 by -1 do
if test[f]!='!' then
{test,facts} = {test[1..f],test[f+1..\$]}
exit
end if
end for
for d=length(test) to 1 by -1 do
integer digit = test[d]
if digit>='0' and digit<='9' then
{test,suffix} = {test[1..d],test[d+1..\$]}
exit
end if
end for
bigatom n = ba_new(substitute(test,",",""))
n = ba_mul(n,decode(suffix))
n = facto(n,length(facts))
string ns = ba_sprintf("%,B",n)
printf(1,"%30s : %s\n",{tests[i],ns})
end for
```
Output:
```                     2greatGRo : 3,456
24Gros : 3,456
288Doz : 3,456
1,728pairs : 3,456
172.8SCOre : 3,456
1,567 : 1,567
+1.567k : 1,567
0.1567e-2m : 1,567
25.123kK : 25,123,000
25.123m : 25,123,000
2.5123e-00002G : 25,123,000
25.123kiKI : 26,343,374.848
25.123Mi : 26,343,374.848
2.5123e-00002Gi : 26,975,615.844352
+.25123E-7Ei : 28,964,846,960.237816578048
-.25123e-34Vikki : -33,394.194938104441474962344775423096782848
2e-77gooGols : 200,000,000,000,000,000,000,000
9! : 362,880
9!! : 945
9!!! : 162
9!!!! : 45
9!!!!! : 36
9!!!!!! : 27
9!!!!!!! : 18
9!!!!!!!! : 9
9!!!!!!!!! : 9
0.017k!! : 34,459,425
```

Python

Works with: CPython version 3.7.3
```from functools import reduce
from operator import mul
from decimal import *

getcontext().prec = MAX_PREC

def expand(num):
suffixes = [
#     (name, min_abbreviation_length, base, exponent)
('greatgross', 7, 12, 3),
('gross', 2, 12, 2),
('dozens', 3, 12, 1),
('pairs', 4, 2, 1),
('scores', 3, 20, 1),
('googols', 6, 10, 100),
('ki', 2, 2, 10),
('mi', 2, 2, 20),
('gi', 2, 2, 30),
('ti', 2, 2, 40),
('pi', 2, 2, 50),
('ei', 2, 2, 60),
('zi', 2, 2, 70),
('yi', 2, 2, 80),
('xi', 2, 2, 90),
('wi', 2, 2, 100),
('vi', 2, 2, 110),
('ui', 2, 2, 120),
('k', 1, 10, 3),
('m', 1, 10, 6),
('g', 1, 10, 9),
('t', 1, 10, 12),
('p', 1, 10, 15),
('e', 1, 10, 18),
('z', 1, 10, 21),
('y', 1, 10, 24),
('x', 1, 10, 27),
('w', 1, 10, 30)
]

num = num.replace(',', '').strip().lower()

if num[-1].isdigit():
return float(num)

for i, char in enumerate(reversed(num)):
if char.isdigit():
input_suffix = num[-i:]
num = Decimal(num[:-i])
break

if input_suffix[0] == '!':
return reduce(mul, range(int(num), 0, -len(input_suffix)))

while len(input_suffix) > 0:
for suffix, min_abbrev, base, power in suffixes:
if input_suffix[:min_abbrev] == suffix[:min_abbrev]:
for i in range(min_abbrev, len(input_suffix) + 1):
if input_suffix[:i+1] != suffix[:i+1]:
num *= base ** power
input_suffix = input_suffix[i:]
break
break

return num

test = "2greatGRo   24Gros  288Doz  1,728pairs  172.8SCOre\n\
1,567      +1.567k    0.1567e-2m\n\
25.123kK    25.123m   2.5123e-00002G\n\
25.123kiKI  25.123Mi  2.5123e-00002Gi  +.25123E-7Ei\n\
-.25123e-34Vikki      2e-77gooGols\n\
9!   9!!   9!!!   9!!!!   9!!!!!   9!!!!!!   9!!!!!!!   9!!!!!!!!   9!!!!!!!!!"

for test_line in test.split("\n"):
test_cases = test_line.split()
print("Input:", ' '.join(test_cases))
print("Output:", ' '.join(format(result, ',f').strip('0').strip('.') for result in map(expand, test_cases)))
```
Output:
```Input: 2greatGRo 24Gros 288Doz 1,728pairs 172.8SCOre
Output: 3,456 3,456 3,456 3,456 3,456
Input: 1,567 +1.567k 0.1567e-2m
Output: 1,567 1,567 1,567
Input: 25.123kK 25.123m 2.5123e-00002G
Output: 25,123,000 25,123,000 25,123,000
Input: 25.123kiKI 25.123Mi 2.5123e-00002Gi +.25123E-7Ei
Output: 26,343,374.848 26,343,374.848 26,975,615.844352 28,964,846,960.237816578048
Input: -.25123e-34Vikki 2e-77gooGols
Output: -33,394.194938104441474962344775423096782848 200,000,000,000,000,000,000,000
Input: 9! 9!! 9!!! 9!!!! 9!!!!! 9!!!!!! 9!!!!!!! 9!!!!!!!! 9!!!!!!!!!
Output: 362,880 945 162 45 36 27 18 9 9
```

Raku

(formerly Perl 6)

Works with: Rakudo version 2018.09

Scientific notation, while supported in Raku, is limited to IEEE-754 64bit accuracy so there is some rounding on values using it. Implements a custom "high precision" conversion routine.

Unfortunately, this suffix routine is of limited use for practical everyday purposes. It focuses on handling excessively large and archaic units (googol, greatgross) and completely ignores or makes unusable (due to forcing case insensitivity) many common current ones: c(centi), m(milli), μ(micro). Ah well.

Note: I am blatantly and deliberately ignoring the task guidelines for formatting the output. It has no bearing on the core of the task. If you really, really, REALLY want to see badly formatted output, uncomment the last line.

```use Rat::Precise;

my \$googol = 10**100;
«PAIRs 2 SCOres 20 DOZens 12 GRoss 144  GREATGRoss 1728 GOOGOLs \$googol»
~~ m:g/ ((<.:Lu>+) <.:Ll>*) \s+ (\S+) /;

my %abr = |\$/.map: {
my \$abbrv = .[0].Str.fc;
my \$mag   = +.[1];
|map { \$abbrv.substr( 0, \$_ ) => \$mag },
.[0][0].Str.chars .. \$abbrv.chars
}

my %suffix = flat %abr,
(<K  M  G  T  P  E  Z  Y  X  W  V  U>».fc  Z=> (1000, * * 1000 … *)),
(<Ki Mi Gi Ti Pi Ei Zi Yi Xi Wi Vi Ui>».fc Z=> (1024, * * 1024 … *));

my \$reg = %suffix.keys.join('|');

sub comma (\$i is copy) {
my \$s = \$i < 0 ?? '-' !! '';
my (\$whole, \$frac) = \$i.split('.');
\$frac = \$frac.defined ?? ".\$frac" !! '';
\$s ~ \$whole.abs.flip.comb(3).join(',').flip ~ \$frac
}

sub units (Str \$str) {
\$str.fc ~~ /^(.+?)(<alpha>*)('!'*)\$/;
my (\$val, \$unit, \$fact) = \$0, \$1.Str.fc, \$2.Str;
\$val.=subst(',', '', :g);
if \$val ~~ m:i/'e'/ {
my (\$m,\$e) = \$val.split(/<[eE]>/);
\$val = (\$e < 0)
?? \$m * FatRat.new(1,10**-\$e)
!! \$m * 10**\$e;
}
my @suf = \$unit;
unless %suffix{\$unit}:exists {
\$unit ~~ /(<\$reg>)+/;
@suf = \$0;
}
my \$ret = \$val<>;
\$ret = [*] \$ret, |@suf.map: { %suffix{\$_} } if @suf[0];
\$ret = [*] (\$ret, * - \$fact.chars …^ * < 2) if \$fact.chars;
\$ret.?precise // \$ret
}

my \$test = q:to '===';
2greatGRo   24Gros  288Doz  1,728pairs  172.8SCOre
1,567      +1.567k    0.1567e-2m
25.123kK    25.123m   2.5123e-00002G
25.123kiKI  25.123Mi  2.5123e-00002Gi  +.25123E-7Ei
-.25123e-34Vikki      2e-77gooGols
9!   9!!   9!!!   9!!!!   9!!!!!   9!!!!!!   9!!!!!!!   9!!!!!!!!   9!!!!!!!!!
.017k!!
===

printf "%16s: %s\n", \$_, comma .&units for \$test.words;

# Task required stupid layout
# say "\n In: \$_\nOut: ", .words.map({comma .&units}).join('  ') for \$test.lines;
```
Output:
```       2greatGRo: 3,456
24Gros: 3,456
288Doz: 3,456
1,728pairs: 3,456
172.8SCOre: 3,456
1,567: 1,567
+1.567k: 1,567
0.1567e-2m: 1,567
25.123kK: 25,123,000
25.123m: 25,123,000
2.5123e-00002G: 25,123,000
25.123kiKI: 26,343,374.848
25.123Mi: 26,343,374.848
2.5123e-00002Gi: 26,975,615.844352
+.25123E-7Ei: 28,964,846,960.237816578048
-.25123e-34Vikki: -33,394.194938104441474962344775423096782848
2e-77gooGols: 200,000,000,000,000,000,000,000
9!: 362,880
9!!: 945
9!!!: 162
9!!!!: 45
9!!!!!: 36
9!!!!!!: 27
9!!!!!!!: 18
9!!!!!!!!: 9
9!!!!!!!!!: 9
.017k!!: 34,459,425```

REXX

```/*REXX pgm converts numbers (with commas) with suffix multipliers──►pure decimal numbers*/
numeric digits 2000                              /*allow the usage of ginormous numbers.*/
@.=; @.1= '2greatGRo   24Gros  288Doz  1,728pairs  172.8SCOre'
@.2= '1,567      +1.567k    0.1567e-2m'
@.3= '25.123kK    25.123m   2.5123e-00002G'
@.4= '25.123kiKI  25.123Mi  2.5123e-00002Gi  +.25123E-7Ei'
@.5= '-.25123e-34Vikki      2e-77gooGols'
@.6=  9!   9!!   9!!!   9!!!!   9!!!!!   9!!!!!!   9!!!!!!!   9!!!!!!!!   9!!!!!!!!!

parse arg x                                      /*obtain optional arguments from the CL*/
if x\==''  then do;    @.2=;     @.1=x           /*use the number(s) specified on the CL*/
end                              /*allow user to specify their own list.*/
/* [↓]  handle a list or multiple lists*/
do  n=1  while @.n\=='';     \$=              /*process each of the numbers in lists.*/
say 'numbers= '      @.n                     /*echo the original arg to the terminal*/

do j=1  for words(@.n);  y= word(@.n, j) /*obtain a single number from the input*/
\$= \$  ' 'commas( num(y) )                /*process a number; add result to list.*/
end   /*j*/                              /* [↑]  add commas to number if needed.*/
/* [↑]  add extra blank betweenst nums.*/
say ' result= '      strip(\$);   say         /*echo the result(s) to the terminal.  */
end       /*n*/                              /* [↑]  elide the  pre-pended  blank.  */
exit                                             /*stick a fork in it,  we're all done. */
/*──────────────────────────────────────────────────────────────────────────────────────*/
isInt:  return datatype( arg(1), 'Whole')        /*return 1 if arg is an integer,  or 0 */
isNum:  return datatype( arg(1), 'Number')       /*   "   "  "  "   " a  number.    " " */
p:      return word( arg(1), 1)                  /*pick 1st argument  or  2nd argument. */
ser:    say;   say '***error*** '  arg(1);           say;            exit 13
shorten:procedure; parse arg a,n;      return left(a,  max(0, length(a) - p(n 1) ) )
/*──────────────────────────────────────────────────────────────────────────────────────*/
\$fact!: procedure; parse arg x _ .;    L= length(x);    n= L - length(strip(x, 'T', "!") )
if n<=-n | _\=='' | arg()\==1  then return x;   z= left(x, L - n)
if z<0 | \isInt(z)             then return x;   return \$fact(z, n)
/*──────────────────────────────────────────────────────────────────────────────────────*/
\$fact:  procedure; parse arg x _ .;  arg ,n ! .;     n= p(n 1);    if \isInt(n)  then n= 0
if x<-n | \isInt(x) |n<1 | _||!\=='' |arg()>2  then return x||copies("!",max(1,n))
s= x // n;   if s==0  then s= n          /*compute where to start multiplying.  */
!= 1                                     /*the initial factorial product so far.*/
do j=s  to x  by n;   != !*j  /*perform the actual factorial product.*/
end   /*j*/                   /*{operator  //  is REXX's ÷ remainder}*/
return !                                 /* [↑]  handles any level of factorial.*/
/*──────────────────────────────────────────────────────────────────────────────────────*/
\$sfxa:  parse arg u,s 1 c,m;   upper u c         /*get original version & upper version.*/
if pos( left(s, 2), u)\==0  then do j=length(s)   to compare(s, c)-1   by -1
if right(u, j) \== left(c, j)  then iterate
_= left(u, length(u) - j)        /*get the num.*/
if isNum(_)  then return m * _   /*good suffix.*/
leave                            /*return as is*/
end
return arg(1)                            /* [↑]  handles an alphabetic suffixes.*/
/*──────────────────────────────────────────────────────────────────────────────────────*/
\$sfx!:  parse arg y;                     if right(y, 1)=='!'  then y= \$fact!(y)
if \isNum(y)  then y=\$sfxz();    if isNum(y)  then return y;       return \$sfxm(y)
/*──────────────────────────────────────────────────────────────────────────────────────*/
\$sfxm:  parse arg z 1 w;     upper w;    @= 'KMGTPEZYXWVU';                       b= 1000
if right(w, 1)=='I'  then do;    z= shorten(z);      w= z;    upper w;    b= 1024
end
_= pos( right(w, 1), @);         if _==0      then return arg(1)
n= shorten(z);  r= num(n, , 1);  if isNum(r)  then return r * b**_
return arg(1)                            /* [↑]  handles metric or binary suffix*/
/*──────────────────────────────────────────────────────────────────────────────────────*/
\$sfxz:  return \$sfxa( \$sfxa( \$sfxa( \$sfxa( \$sfxa( \$sfxa(y, 'PAIRs', 2),   'DOZens', 12), ,
'SCores', 20),   'GREATGRoss',  1728),     'GRoss', 144),     'GOOGOLs', 1e100)
/*──────────────────────────────────────────────────────────────────────────────────────*/
commas: procedure;  parse arg _;    n= _'.9';      #= 123456789;      b= verify(n, #, "M")
e= verify(n, #'0', ,   verify(n, #"0.", 'M') )  -  4         /* [↑]  add commas.*/
do j=e  to b  by -3;   _= insert(',', _, j);     end  /*j*/;           return _
/*──────────────────────────────────────────────────────────────────────────────────────*/
num:    procedure; parse arg x .,,q;         if x==''  then return x
if  isNum(x)  then return  x/1;      x= space( translate(x, , ','), 0)
if \isNum(x)  then x= \$sfx!(x);      if isNum(x)  then return x/1
if q==1  then return x
if q==''  then call ser "argument isn't numeric or doesn't have a legal suffix:" x
```
output   when using the default inputs:
```numbers=  2greatGRo   24Gros  288Doz  1,728pairs  172.8SCOre
result=  3,456  3,456  3,456  3,456  3,456

numbers=  1,567      +1.567k    0.1567e-2m
result=  1,567  1,567  1,567

numbers=  25.123kK    25.123m   2.5123e-00002G
result=  25,123,000  25,123,000  25,123,000

numbers=  25.123kiKI  25.123Mi  2.5123e-00002Gi  +.25123E-7Ei
result=  26,343,374.848  26,343,374.848  26,975,615.844352  28,964,846,960.237816578048

numbers=  -.25123e-34Vikki      2e-77gooGols
result=  -33,394.194938104441474962344775423096782848  200,000,000,000,000,000,000,000

numbers=  9! 9!! 9!!! 9!!!! 9!!!!! 9!!!!!! 9!!!!!!! 9!!!!!!!! 9!!!!!!!!!
result=  362,880  945  162  45  36  27  18  9  9
```

Wren

Translation of: Go
Library: Wren-big
Library: Wren-str
Library: Wren-fmt
```import "./big" for BigRat
import "./str" for Str
import "./fmt" for Fmt

var abbrevs = {
"PAIRs": [4, 2], "SCOres": [3, 20], "DOZens": [3, 12],
"GRoss": [2, 144], "GREATGRoss": [7, 1728], "GOOGOLs": [6, 1e100]
}

var metric = {
"K": 1e3,  "M": 1e6,  "G": 1e9,  "T": 1e12, "P": 1e15, "E": 1e18,
"Z": 1e21, "Y": 1e24, "X": 1e27, "W": 1e30, "V": 1e33, "U": 1e36
}

var b = Fn.new { |e| BigRat.two.pow(e) }

var binary = {
"Ki": b.call(10), "Mi": b.call(20),  "Gi": b.call(30),  "Ti": b.call(40),
"Pi": b.call(50), "Ei": b.call(60),  "Zi": b.call(70),  "Yi": b.call(80),
"Xi": b.call(90), "Wi": b.call(100), "Vi": b.call(110), "Ui": b.call(120)
}

var googol = BigRat.fromDecimal("1e100")

var fact = Fn.new { |num, d|
var prod = 1
var n = Num.fromString(num)
var i = n
while (i > 0) {
prod = prod * i
i = i - d
}
return prod
}

var parse = Fn.new { |number|
// find index of last digit
var i = number.count - 1
while (i >= 0) {
if (48 <= number.bytes[i] && number.bytes[i] <= 57) break
i = i - 1
}
var num = number[0..i]
num = num.replace(",", "") // get rid of any commas
var suf = Str.upper(number[i+1..-1])
if (suf == "") return BigRat.fromDecimal(num)
if (suf[0] == "!") {
var prod = fact.call(num, suf.count)
return BigRat.new(prod)
}
for (me in abbrevs) {
var kk = Str.upper(me.key)
if (kk.startsWith(suf) && suf.count >= me.value[0]) {
var t1 = BigRat.fromDecimal(num)
var t2 = (me.key != "GOOGOLS") ? BigRat.fromDecimal(me.value[1]) : googol
return t1 * t2
}
}
var bf = BigRat.fromDecimal(num)
for (me in metric) {
var j = 0
while (j < suf.count) {
if (me.key == suf[j]) {
if (j < suf.count-1 && suf[j+1] == "I") {
bf = bf * binary[me.key + "i"]
j = j + 1
} else {
bf = bf * me.value
}
}
j = j + 1
}
}
return bf
}

var process = Fn.new { |numbers|
System.write("numbers =  ")
for (number in numbers) Fmt.write("\$s   ", number)
System.write("\nresults =  ")
for (number in numbers) {
var res = parse.call(number)
if (res.isInteger) {
Fmt.write("\$,s  ", res.toDecimal(50))
} else {
var sres = Fmt.swrite("\$,s", res.truncate.toDecimal)
Fmt.write("\$s  ", sres + res.fraction.abs.toDecimal(50)[1..-1])
}
}
System.print("\n")
}

var numbers = ["2greatGRo", "24Gros", "288Doz", "1,728pairs", "172.8SCOre"]
process.call(numbers)

numbers = ["1,567", "+1.567k", "0.1567e-2m"]
process.call(numbers)

numbers = ["25.123kK", "25.123m", "2.5123e-00002G"]
process.call(numbers)

numbers = ["25.123kiKI", "25.123Mi", "2.5123e-00002Gi", "+.25123E-7Ei"]
process.call(numbers)

numbers = ["-.25123e-34Vikki", "2e-77gooGols"]
process.call(numbers)

numbers = ["9!", "9!!", "9!!!", "9!!!!", "9!!!!!", "9!!!!!!", "9!!!!!!!", "9!!!!!!!!", "9!!!!!!!!!"]
process.call(numbers)
```
Output:
```numbers =  2greatGRo   24Gros   288Doz   1,728pairs   172.8SCOre
results =  3,456  3,456  3,456  3,456  3,456

numbers =  1,567   +1.567k   0.1567e-2m
results =  1,567  1,567  1,567

numbers =  25.123kK   25.123m   2.5123e-00002G
results =  25,123,000  25,123,000  25,123,000

numbers =  25.123kiKI   25.123Mi   2.5123e-00002Gi   +.25123E-7Ei
results =  26,343,374.848  26,343,374.848  26,975,615.844352  28,964,846,960.237816578048

numbers =  -.25123e-34Vikki   2e-77gooGols
results =  -33,394.194938104441474962344775423096782848  200,000,000,000,000,000,000,000

numbers =  9!   9!!   9!!!   9!!!!   9!!!!!   9!!!!!!   9!!!!!!!   9!!!!!!!!   9!!!!!!!!!
results =  362,880  945  162  45  36  27  18  9  9
```

zkl

Library: GMP

GNU Multiple Precision Arithmetic Library (big ints)

Floats are limited to 64 bit IEEE754. Error checking is nonexistent.

```var [const] BI=Import.lib("zklBigNum");  // GMP
var kRE,kD, aRE,aD;

kRE,kD = ki();
aRE,aD = abrevCreate();

fcn naSuffixes(numStr){
var [const]
numRE=RegExp(0'^([+-]*\.*\d+[.]*\d*E*[+-]*\d*)^),
bangRE=RegExp(0'^(!+)^);

nstr:=(numStr - " ,").toUpper();
numRE.search(nstr);
nstr,r := nstr[numRE.matched[0][1],*], numRE.matched[1];
if(r.matches("*[.E]*")) r=r.toFloat();  // arg!
if(r.matches("*[.E]*")) r=r.toFloat();  // arg!
else 		   r=BI(r);

reg z;
do{
z=nstr;	// use this to see if we actually did anything
if(aRE.search(nstr)){
ns,k := aRE.matched;	// ((0,3),"SCO")
re,b := aD[k];		// (RegExp("R|RE|RES"),BI(20)),
nstr  = nstr[ns[1],*];
if(re.search(nstr)) nstr=nstr[re.matched[0][1],*]; # remove abbrev tail
r=r*b;
continue;
}else if(kRE.search(nstr)){
r*=kD[kRE.matched[1]];	    // "K":1000 ...
nstr=nstr[kRE.matched[0][1],*];
continue;
}else if(bangRE.search(nstr)){  // floats are converted to int
n,k,z := r.toInt(), bangRE.matched[0][1], n - k;
r,nstr = BI(n), nstr[k,*];
while(z>0){ r.mul(z); z-=k; }
continue;
}
}while(nstr and z!=nstr);
r
}

fcn ki{  // case insensitive: k, ki,
ss:="K M G T P E Z Y X W V U".split();
d:=Dictionary();
ss.zipWith(d.add,[3..3*(ss.len()),3].apply(BI(10).pow));    # E:1e+18
ss.apply("append","I")
.zipWith(d.add,[10..10*(ss.len()),10].apply(BI(2).pow)); # EI:1.15292e+18
re:="([%s]I\\?)".fmt(ss.concat());  // "([KMGTPEZYXWVU]I\?)"
return(RegExp(re),d);
}
fcn abrevCreate{
var upDown=RegExp("([A-Z]+)(.*)");
s:="PAIRs 2; SCOres 20; DOZens 12; GREATGRoss 1728; GRoss 144; GOOGOLs 10e100".split(";");
abrevs,re := Dictionary(), Sink(String);
foreach an in (s){
a,n := an.split();
upDown.search(a);
u,d := upDown.matched[1,2];
d=d.len().pump(List,  // "R|RE|RES"
'+(1),d.get.fp(0),"toUpper").reverse().concat("|");
abrevs.add(u,T(RegExp(d),BI(n)));
re.write(u," ");
}
// "PAIR|SCO|DOZ|GR|GREATGR|GOOGOL"
re=RegExp("(%s)".fmt(re.close().strip().replace(" ","|")));
return(re,abrevs);
}```
```foreach na in (T("2greatGRo", "24Gros", "288Doz", "1,728pairs", "172.8SCOre",
"1,567", "+1.567k", "0.1567e-2m",
"25.123kK", "25.123m", "2.5123e-00002G",
"25.123kiKI", "25.123Mi", "2.5123e-00002Gi", "+.25123E-7Ei",
"-.25123e-34Vikki", "2e-77gooGols",
"9!", "9!!", "9!!!", "9!!!!", "9!!!!!", "9!!!!!!",
"9!!!!!!!", "9!!!!!!!!", "9!!!!!!!!!",
"9!!!!!!!!!k", ".017k!!", "4 dozensK", "2 dozen pairs")){

if((r:=naSuffixes(na)).isType(Float)) println("%16s : %,f".fmt(na,r));
else 				 println("%16s : %,d".fmt(na,r));
}```
Output:
```       2greatGRo : 3,456
24Gros : 3,456
288Doz : 3,456
1,728pairs : 3,456
172.8SCOre : 3,456.000000
1,567 : 1,567
+1.567k : 1,567.000000
0.1567e-2m : 1,567.000000
25.123kK : 25,123,000.000000
25.123m : 25,123,000.000000
2.5123e-00002G : 25,123,000.000000
25.123kiKI : 26,343,374.848000
25.123Mi : 26,343,374.848000
2.5123e-00002Gi : 26,975,615.844352
+.25123E-7Ei : 28,964,846,960.237816
-.25123e-34Vikki : -33,394.194938
2e-77gooGols : 1,999,999,999,999,999,698,010,112.000000
9! : 362,880
9!! : 945
9!!! : 162
9!!!! : 45
9!!!!! : 36
9!!!!!! : 27
9!!!!!!! : 18
9!!!!!!!! : 9
9!!!!!!!!! : 9
9!!!!!!!!!k : 9,000
.017k!! : 34,459,425
4 dozensK : 48,000
2 dozen pairs : 48
```