73 lines
1.2 KiB
Go
73 lines
1.2 KiB
Go
package tprint
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import (
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"strings"
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"unicode"
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"github.com/mattn/go-runewidth"
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)
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func Search[T any](slice []T, cmp func(a, b T) T) T {
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best := *new(T)
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for _, v := range slice {
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best = cmp(v, best)
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}
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return best
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}
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func maxLengthStr(a, b string) string {
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if strLen(a) > strLen(b) {
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return a
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}
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return b
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}
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func maxLengthSlice[T any](a, b []T) []T {
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if len(a) > len(b) {
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return a
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}
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return b
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}
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func strLen(str string) int {
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l := 0
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runes := []rune(str)
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for i := 0; i < len(runes); i++ {
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rn := runes[i]
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// skip control sequences
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if unicode.IsControl(rn) {
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for j := i; j < len(runes)-1 && runes[j] != 'm'; j++ {
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i = j
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}
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i++
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continue
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}
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if rn <= 0xFF || rn >= '─' && rn <= '╿' {
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l++
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} else {
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l += runewidth.RuneWidth(rn)
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}
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}
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return l
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}
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func padStringRight(str string, pad rune, length int) string {
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padding := length - strLen(str)
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return str + strings.Repeat(string(pad), padding)
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}
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func padStringLeft(str string, pad rune, length int) string {
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padding := length - strLen(str)
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return strings.Repeat(string(pad), padding) + str
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}
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func padStringCenter(str string, pad rune, length int) string {
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l := strLen(str)
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return padStringLeft(padStringRight(str, pad, (length-l)/2+l), pad, length)
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}
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