func safeFunctionName()

in convert.go [228:261]

• 27 lines of code
• 6 McCabe index (conditional complexity)

func safeFunctionName(name string, knownFuncs map[string]int) string {
	var inBytes, outBytes []byte
	var toUpper bool

	name = strings.ToLower(name)
	inBytes = []byte(name)

	for i := 0; i < len(inBytes); i++ {
		if regFuncName.Match([]byte{inBytes[i]}) {
			toUpper = true
		} else if toUpper {
			outBytes = append(outBytes, []byte(strings.ToUpper(string(inBytes[i])))...)
			toUpper = false
		} else {
			outBytes = append(outBytes, inBytes[i])
		}
	}

	name = string(outBytes)

	// Identifier can't start with a digit.
	if unicode.IsDigit(rune(name[0])) {
		name = "_" + name
	}

	if num, ok := knownFuncs[name]; ok {
		knownFuncs[name] = num + 1
		name = fmt.Sprintf("%s%d", name, num)
	} else {
		knownFuncs[name] = 2
	}

	return name
}