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// Copyright (c) 2017, A. Stoewer <adrian.stoewer@rz.ifi.lmu.de>
// All rights reserved.
package strcase
import (
"strings"
)
// UpperCamelCase converts a string into camel case starting with a upper case letter.
func UpperCamelCase(s string) string {
return camelCase(s, true)
}
// LowerCamelCase converts a string into camel case starting with a lower case letter.
func LowerCamelCase(s string) string {
return camelCase(s, false)
}
func camelCase(s string, upper bool) string {
s = strings.TrimSpace(s)
buffer := make([]rune, 0, len(s))
stringIter(s, func(prev, curr, next rune) {
if !isDelimiter(curr) {
if isDelimiter(prev) || (upper && prev == 0) {
buffer = append(buffer, toUpper(curr))
} else if isLower(prev) {
buffer = append(buffer, curr)
} else if isUpper(prev) && isUpper(curr) && isLower(next) {
// Assume a case like "R" for "XRequestId"
buffer = append(buffer, curr)
} else {
buffer = append(buffer, toLower(curr))
}
}
})
return string(buffer)
}
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