/
other.go
105 lines (96 loc) · 2.06 KB
/
other.go
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package ansigo
import (
"regexp"
"strings"
)
var (
wsRE = regexp.MustCompile(`\s`)
dashRE = regexp.MustCompile(`-+`)
underRE = regexp.MustCompile(`_+`)
)
type other func(string) string
type Other interface {
Apply(string) string
}
func (o other) Apply(s string) string {
return o(s)
}
type others map[string]other
func (o others) Find(what string) (Other, error) {
if attr, ok := Others[strings.ToLower(what)]; ok {
return Other(attr), nil
}
return nil, CodeNotFound
}
var (
AllCaps other = func(s string) string {
return strings.ToUpper(s)
}
TitleCase other = func(s string) string {
var builder strings.Builder
capNext := true
for _, r := range s {
chr := string(r)
if wsRE.MatchString(chr) {
capNext = true
} else if capNext {
capNext = false
chr = strings.ToUpper(chr)
}
builder.WriteString(chr)
}
return builder.String()
}
CamelCase other = func(s string) string {
var builder strings.Builder
capNext := false
started := false
for _, r := range s {
chr := string(r)
if !wsRE.MatchString(chr) {
started = true
if capNext {
capNext = false
chr = strings.ToUpper(chr)
}
} else {
if started {
capNext = true
}
continue
}
builder.WriteString(chr)
}
return builder.String()
}
UpperCamelCase other = func(s string) string {
var builder strings.Builder
capNext := true
for _, r := range s {
chr := string(r)
if wsRE.MatchString(chr) {
capNext = true
continue
} else if capNext {
capNext = false
chr = strings.ToUpper(chr)
}
builder.WriteString(chr)
}
return builder.String()
}
SnakeCase other = func(s string) string {
return underRE.ReplaceAllString(wsRE.ReplaceAllString(s, "_"), "_")
}
KebabCase other = func(s string) string {
return dashRE.ReplaceAllString(wsRE.ReplaceAllString(s, "-"), "-")
}
)
var Others others = map[string]other{
"allcaps": AllCaps,
"titlecase": TitleCase,
"camelcase": CamelCase,
"uppercamelcase": UpperCamelCase,
"snakecase": SnakeCase,
"kebabcase": KebabCase,
}