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104 lines
2.4 KiB
104 lines
2.4 KiB
package strings
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import (
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"fmt"
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"strings"
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)
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// SplitAndTrimEmpty slices s into all subslices separated by sep and returns a
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// slice of the string s with all leading and trailing Unicode code points
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// contained in cutset removed. If sep is empty, SplitAndTrim splits after each
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// UTF-8 sequence. First part is equivalent to strings.SplitN with a count of
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// -1. also filter out empty strings, only return non-empty strings.
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func SplitAndTrimEmpty(s, sep, cutset string) []string {
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if s == "" {
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return []string{}
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}
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spl := strings.Split(s, sep)
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nonEmptyStrings := make([]string, 0, len(spl))
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for i := 0; i < len(spl); i++ {
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element := strings.Trim(spl[i], cutset)
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if element != "" {
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nonEmptyStrings = append(nonEmptyStrings, element)
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}
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}
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return nonEmptyStrings
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}
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// StringInSlice returns true if a is found the list.
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func StringInSlice(a string, list []string) bool {
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for _, b := range list {
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if b == a {
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return true
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}
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}
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return false
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}
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// SplitAndTrim slices s into all subslices separated by sep and returns a
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// slice of the string s with all leading and trailing Unicode code points
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// contained in cutset removed. If sep is empty, SplitAndTrim splits after each
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// UTF-8 sequence. First part is equivalent to strings.SplitN with a count of
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// -1.
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func SplitAndTrim(s, sep, cutset string) []string {
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if s == "" {
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return []string{}
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}
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spl := strings.Split(s, sep)
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for i := 0; i < len(spl); i++ {
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spl[i] = strings.Trim(spl[i], cutset)
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}
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return spl
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}
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// TrimSpace removes all leading and trailing whitespace from the
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// string.
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func TrimSpace(s string) string { return strings.TrimSpace(s) }
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// Returns true if s is a non-empty printable non-tab ascii character.
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func IsASCIIText(s string) bool {
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if len(s) == 0 {
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return false
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}
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for _, b := range []byte(s) {
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if 32 <= b && b <= 126 {
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// good
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} else {
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return false
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}
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}
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return true
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}
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// NOTE: Assumes that s is ASCII as per IsASCIIText(), otherwise panics.
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func ASCIITrim(s string) string {
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r := make([]byte, 0, len(s))
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for _, b := range []byte(s) {
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switch {
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case b == 32:
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continue // skip space
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case 32 < b && b <= 126:
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r = append(r, b)
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default:
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panic(fmt.Sprintf("non-ASCII (non-tab) char 0x%X", b))
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}
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}
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return string(r)
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}
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// StringSliceEqual checks if string slices a and b are equal
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func StringSliceEqual(a, b []string) bool {
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if len(a) != len(b) {
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return false
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}
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for i := 0; i < len(a); i++ {
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if a[i] != b[i] {
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return false
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}
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}
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return true
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}
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