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Return roman numerals as lowercase strings

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This commit is contained in:
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.
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.
@@ -13,9 +13,9 @@ goos: linux
goarch: amd64
pkg: github.com/rwinkhart/convertroman
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
ok github.com/rwinkhart/convertroman 1.332s
ok github.com/rwinkhart/convertroman 1.827s
```
### Example
@@ -29,9 +29,9 @@ import (
)
func ExampleFromInt() {
roman, err := rom.FromInt(4)
if err != nil {
panic(err)
roman := FromInt(4)
if roman == "OOB" {
panic("Input integer is out of bounds")
}
fmt.Println(roman == "IV") // True
}
convertroman.go
+4 -4
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@@ -7,10 +7,10 @@ package convertroman
var (
// 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
r0 = [10]string{"", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX"}
r1 = [10]string{"", "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC"}
r2 = [10]string{"", "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM"}
r3 = [4]string{"", "M", "MM", "MMM"}
r0 = [10]string{"", "i", "ii", "iii", "iv", "v", "vi", "vii", "viii", "ix"}
r1 = [10]string{"", "x", "xx", "xxx", "xl", "l", "lx", "lxx", "lxxx", "xc"}
r2 = [10]string{"", "c", "cc", "ccc", "cd", "d", "dc", "dcc", "dccc", "cm"}
r3 = [4]string{"", "m", "mm", "mmm"}
)
// 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{
"I": 1, "II": 2, "III": 3, "IV": 4, "V": 5, "VI": 6,
"VII": 7, "VIII": 8, "IX": 9, "X": 10, "XI": 11, "XII": 12,
"XIII": 13, "XIV": 14, "XV": 15, "XVI": 16, "XVII": 17,
"XVIII": 18, "XIX": 19, "XX": 20, "XXXI": 31, "XXXII": 32,
"XXXIII": 33, "XXXIV": 34, "XXXV": 35, "XXXVI": 36, "XXXVII": 37,
"XXXVIII": 38, "XXXIX": 39, "XL": 40, "XLI": 41, "XLII": 42,
"XLIII": 43, "XLIV": 44, "XLV": 45, "XLVI": 46, "XLVII": 47,
"XLVIII": 48, "XLIX": 49, "L": 50, "LXXXIX": 89, "XC": 90,
"XCI": 91, "XCII": 92, "XCIII": 93, "XCIV": 94, "XCV": 95,
"XCVI": 96, "XCVII": 97, "XCVIII": 98, "XCIX": 99, "C": 100,
"CI": 101, "CII": 102, "CIII": 103, "CIV": 104, "CV": 105,
"CVI": 106, "CVII": 107, "CVIII": 108, "CIX": 109, "CXLIX": 149,
"CCCXLIX": 349, "CDLVI": 456, "D": 500, "DCIV": 604, "DCCLXXXIX": 789,
"DCCCXLIX": 849, "CMIV": 904, "M": 1000, "MVII": 1007, "MLXVI": 1066,
"MCCXXXIV": 1234, "MDCCLXXVI": 1776, "MMXXI": 2021, "MMDCCCVI": 2806,
"MMCMXCIX": 2999, "MMM": 3000, "MMMCMLXXIX": 3979, "MMMCMXCIX": 3999,
"i": 1, "ii": 2, "iii": 3, "iv": 4, "v": 5, "vi": 6,
"vii": 7, "viii": 8, "ix": 9, "x": 10, "xi": 11, "xii": 12,
"xiii": 13, "xiv": 14, "xv": 15, "xvi": 16, "xvii": 17,
"xviii": 18, "xix": 19, "xx": 20, "xxxi": 31, "xxxii": 32,
"xxxiii": 33, "xxxiv": 34, "xxxv": 35, "xxxvi": 36, "xxxvii": 37,
"xxxviii": 38, "xxxix": 39, "xl": 40, "xli": 41, "xlii": 42,
"xliii": 43, "xliv": 44, "xlv": 45, "xlvi": 46, "xlvii": 47,
"xlviii": 48, "xlix": 49, "l": 50, "lxxxix": 89, "xc": 90,
"xci": 91, "xcii": 92, "xciii": 93, "xciv": 94, "xcv": 95,
"xcvi": 96, "xcvii": 97, "xcviii": 98, "xcix": 99, "c": 100,
"ci": 101, "cii": 102, "ciii": 103, "civ": 104, "cv": 105,
"cvi": 106, "cvii": 107, "cviii": 108, "cix": 109, "cxlix": 149,
"cccxlix": 349, "cdlvi": 456, "d": 500, "dciv": 604, "dcclxxxix": 789,
"dcccxlix": 849, "cmiv": 904, "m": 1000, "mvii": 1007, "mlxvi": 1066,
"mccxxxiv": 1234, "mdcclxxvi": 1776, "mmxxi": 2021, "mmdcccvi": 2806,
"mmcmxcix": 2999, "mmm": 3000, "mmmcmlxxix": 3979, "mmmcmxcix": 3999,
}
func TestFromInt(t *testing.T) {