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Return roman numerals as lowercase strings

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RandyTheSilly
2024-10-25 16:26:43 -04:00
parent 0846ed7063
commit 6278fde12d
3 changed files with 26 additions and 26 deletions
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README.md
+6 -6
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@@ -2,7 +2,7 @@
This package was adapted from [romannumeral](https://github.com/brandenc40/romannumeral) to fit my specific minimal use-case. This package was adapted from [romannumeral](https://github.com/brandenc40/romannumeral) to fit my specific minimal use-case.
All functionality except for the ability to convert integers to roman numerals has been removed. All functionality except for the ability to convert integers to **lowercase** roman numerals has been removed.
If you need any additional functionality or further documentation, please see the original package. If you need any additional functionality or further documentation, please see the original package.
@@ -13,9 +13,9 @@ goos: linux
goarch: amd64 goarch: amd64
pkg: github.com/rwinkhart/convertroman pkg: github.com/rwinkhart/convertroman
cpu: AMD Ryzen 9 3900X 12-Core Processor cpu: AMD Ryzen 9 3900X 12-Core Processor
BenchmarkFromInt-24 62046414 21.08 ns/op 0 B/op 0 allocs/op BenchmarkFromInt-24 61993154 20.82 ns/op 0 B/op 0 allocs/op
PASS PASS
ok github.com/rwinkhart/convertroman 1.332s ok github.com/rwinkhart/convertroman 1.827s
``` ```
### Example ### Example
@@ -29,9 +29,9 @@ import (
) )
func ExampleFromInt() { func ExampleFromInt() {
roman, err := rom.FromInt(4) roman := FromInt(4)
if err != nil { if roman == "OOB" {
panic(err) panic("Input integer is out of bounds")
} }
fmt.Println(roman == "IV") // True fmt.Println(roman == "IV") // True
} }
convertroman.go
+4 -4
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@@ -7,10 +7,10 @@ package convertroman
var ( var (
// lookup arrays used for converting from an int to a roman numeral extremely quickly. // lookup arrays used for converting from an int to a roman numeral extremely quickly.
// method from here: https://rosettacode.org/wiki/Roman_numerals/Encode#Go // method from here: https://rosettacode.org/wiki/Roman_numerals/Encode#Go
r0 = [10]string{"", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX"} r0 = [10]string{"", "i", "ii", "iii", "iv", "v", "vi", "vii", "viii", "ix"}
r1 = [10]string{"", "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC"} r1 = [10]string{"", "x", "xx", "xxx", "xl", "l", "lx", "lxx", "lxxx", "xc"}
r2 = [10]string{"", "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM"} r2 = [10]string{"", "c", "cc", "ccc", "cd", "d", "dc", "dcc", "dccc", "cm"}
r3 = [4]string{"", "M", "MM", "MMM"} r3 = [4]string{"", "m", "mm", "mmm"}
) )
// FromInt converts an integer value to a roman numeral string. // FromInt converts an integer value to a roman numeral string.
convertroman_test.go
+16 -16
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@@ -6,22 +6,22 @@ import (
) )
var testCases = map[string]int{ var testCases = map[string]int{
"I": 1, "II": 2, "III": 3, "IV": 4, "V": 5, "VI": 6, "i": 1, "ii": 2, "iii": 3, "iv": 4, "v": 5, "vi": 6,
"VII": 7, "VIII": 8, "IX": 9, "X": 10, "XI": 11, "XII": 12, "vii": 7, "viii": 8, "ix": 9, "x": 10, "xi": 11, "xii": 12,
"XIII": 13, "XIV": 14, "XV": 15, "XVI": 16, "XVII": 17, "xiii": 13, "xiv": 14, "xv": 15, "xvi": 16, "xvii": 17,
"XVIII": 18, "XIX": 19, "XX": 20, "XXXI": 31, "XXXII": 32, "xviii": 18, "xix": 19, "xx": 20, "xxxi": 31, "xxxii": 32,
"XXXIII": 33, "XXXIV": 34, "XXXV": 35, "XXXVI": 36, "XXXVII": 37, "xxxiii": 33, "xxxiv": 34, "xxxv": 35, "xxxvi": 36, "xxxvii": 37,
"XXXVIII": 38, "XXXIX": 39, "XL": 40, "XLI": 41, "XLII": 42, "xxxviii": 38, "xxxix": 39, "xl": 40, "xli": 41, "xlii": 42,
"XLIII": 43, "XLIV": 44, "XLV": 45, "XLVI": 46, "XLVII": 47, "xliii": 43, "xliv": 44, "xlv": 45, "xlvi": 46, "xlvii": 47,
"XLVIII": 48, "XLIX": 49, "L": 50, "LXXXIX": 89, "XC": 90, "xlviii": 48, "xlix": 49, "l": 50, "lxxxix": 89, "xc": 90,
"XCI": 91, "XCII": 92, "XCIII": 93, "XCIV": 94, "XCV": 95, "xci": 91, "xcii": 92, "xciii": 93, "xciv": 94, "xcv": 95,
"XCVI": 96, "XCVII": 97, "XCVIII": 98, "XCIX": 99, "C": 100, "xcvi": 96, "xcvii": 97, "xcviii": 98, "xcix": 99, "c": 100,
"CI": 101, "CII": 102, "CIII": 103, "CIV": 104, "CV": 105, "ci": 101, "cii": 102, "ciii": 103, "civ": 104, "cv": 105,
"CVI": 106, "CVII": 107, "CVIII": 108, "CIX": 109, "CXLIX": 149, "cvi": 106, "cvii": 107, "cviii": 108, "cix": 109, "cxlix": 149,
"CCCXLIX": 349, "CDLVI": 456, "D": 500, "DCIV": 604, "DCCLXXXIX": 789, "cccxlix": 349, "cdlvi": 456, "d": 500, "dciv": 604, "dcclxxxix": 789,
"DCCCXLIX": 849, "CMIV": 904, "M": 1000, "MVII": 1007, "MLXVI": 1066, "dcccxlix": 849, "cmiv": 904, "m": 1000, "mvii": 1007, "mlxvi": 1066,
"MCCXXXIV": 1234, "MDCCLXXVI": 1776, "MMXXI": 2021, "MMDCCCVI": 2806, "mccxxxiv": 1234, "mdcclxxvi": 1776, "mmxxi": 2021, "mmdcccvi": 2806,
"MMCMXCIX": 2999, "MMM": 3000, "MMMCMLXXIX": 3979, "MMMCMXCIX": 3999, "mmcmxcix": 2999, "mmm": 3000, "mmmcmlxxix": 3979, "mmmcmxcix": 3999,
} }
func TestFromInt(t *testing.T) { func TestFromInt(t *testing.T) {