lf/misc.go
2016-08-13 15:49:04 +03:00

112 lines
2.0 KiB
Go

package main
import (
"fmt"
"log"
"path"
"strconv"
"unicode"
"unicode/utf8"
)
func isRoot(name string) bool {
return path.Dir(name) == name
}
func humanize(size int64) string {
if size < 1000 {
return fmt.Sprintf("%d", size)
}
suffix := []string{
"K", // kilo
"M", // mega
"G", // giga
"T", // tera
"P", // peta
"E", // exa
"Z", // zeta
"Y", // yotta
}
curr := float64(size) / 1000
for _, s := range suffix {
if curr < 10 {
return fmt.Sprintf("%.1f%s", curr, s)
} else if curr < 1000 {
return fmt.Sprintf("%d%s", int(curr), s)
}
curr /= 1000
}
return ""
}
// This function extracts numbers from a string and returns with the rest.
// It is used for numeric sorting of files when the file name consists of
// both digits and letters.
//
// For instance if your input is 'foo123bar456' you get a slice of number
// consisting of elements '123' and '456' and rest of the string as a slice
// consisting of elements 'foo' and 'bar'. The last return argument denotes
// whether or not the first partition is a number.
func extractNums(s string) (nums []int, rest []string, numFirst bool) {
var buf []rune
r, _ := utf8.DecodeRuneInString(s)
digit := unicode.IsDigit(r)
numFirst = digit
for i, c := range s {
if unicode.IsDigit(c) == digit {
buf = append(buf, c)
if i != len(s)-1 {
continue
}
}
if digit {
i, err := strconv.Atoi(string(buf))
if err != nil {
// TODO: handle error
log.Printf("extracting numbers: %s", err)
}
nums = append(nums, i)
} else {
rest = append(rest, string(buf))
}
buf = nil
buf = append(buf, c)
digit = !digit
}
return
}
func min(a, b int) int {
if a < b {
return a
}
return b
}
func max(a, b int) int {
if a > b {
return a
}
return b
}
//
// We don't need no generic code
// We don't need no thought control
// No dark templates in compiler
// Haskell leave them kids alone
// Hey Bjarne leave them kids alone
// All in all it's just another brick in the code
// All in all you're just another brick in the code
//
// -- Pink Trolled --
//