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zk/util/strings/strings.go

48 lines
1.2 KiB
Go

package strings
import (
"bufio"
"strings"
)
// Prepend prefixes each lines of a string with the given prefix.
// It can be used to indent or quote (> ) a paragraph, for example.
func Prepend(text string, prefix string) string {
if text == "" || prefix == "" {
return text
}
lines := strings.SplitAfter(text, "\n")
if len(lines[len(lines)-1]) == 0 {
lines = lines[:len(lines)-1]
}
return strings.Join(append([]string{""}, lines...), prefix)
}
// Pluralize adds an `s` at the end of word if the count is more than 1.
func Pluralize(word string, count int) string {
if word == "" || (count >= -1 && count <= 1) {
return word
} else {
return word + "s"
}
}
// SplitLines splits a string by the newlines character in a portable way
// Using only `strings.Split(s, "\n")` doesn't work on Windows.
func SplitLines(s string) []string {
var lines []string
scanner := bufio.NewScanner(strings.NewReader(s))
for scanner.Scan() {
lines = append(lines, scanner.Text())
}
return lines
}
// JoinLines joins each lines of the given string by replacing the newlines by
// a single space.
func JoinLines(s string) string {
return strings.Join(SplitLines(s), " ")
}