}

func trimTrace(f string) string {
	for _, trimString := range trimStrings {
		f = strings.TrimPrefix(filepath.ToSlash(f), filepath.ToSlash(trimString))
	}
	return filepath.FromSlash(f)
}

func getSource(level int) string {
	pc, file, lineNumber, ok := runtime.Caller(level)
	if ok {
		// Clean up the common prefixes
		file = trimTrace(file)

	creds := strings.SplitN(strings.TrimSpace(credElement), "=", 2)
	if len(creds) != 2 {
		return ch, ErrMissingFields
	}
	if creds[0] != "Credential" {
		return ch, ErrMissingCredTag
	}
	credElements := strings.Split(strings.TrimRight(strings.TrimSpace(creds[1]), SlashSeparator), SlashSeparator)
	if len(credElements) < 5 {
		return ch, ErrCredMalformed
	}

		for v := range strings.SplitSeq(strings.TrimSpace(headerVal), ",") {
			if v != "" {
				attributes[v] = struct{}{}
			}
		}
	}

	return attributes
}

func parseIntHeader(bucket, object string, h http.Header, headerName string) (value int, err error) {
	stringInt := strings.TrimSpace(h.Get(headerName))
	if stringInt == "" {
		return value, err
	}

    }

    /**
     * Returns the trimSpace.
     *
     * @return the trimSpace
     */
    public boolean isTrimSpace() {
        return trimSpaceEnabled;
    }

    /**
     * Sets the trimSpace.
     *
     * @param trimSpace the trimSpace to set
     */
    public void setTrimSpace(final boolean trimSpace) {
        trimSpaceEnabled = trimSpace;
    }

    /**

        return trimSpaceEnabled;
    }

    /**
     * Sets whether space trimming is enabled.
     * @param trimSpace The trim space flag to set.
     */
    public void setTrimSpace(final boolean trimSpace) {
        trimSpaceEnabled = trimSpace;
    }

    /**
     * Returns the charset name.
     * @return The charset name.
     */
    public String getCharsetName() {

			i++
			s = s[:len(s)-1] + sep + names[i]
		}
		parsedNames = append(parsedNames, s)
	}

	for _, tag := range parsedNames {
		values := strings.Split(tag, ":")
		k := strings.TrimSpace(strings.ToUpper(values[0]))
		if len(values) >= 2 {
			val := strings.Join(values[1:], ":")
			val = strings.ReplaceAll(val, `\"`, `"`)
			settings[k] = val
		} else if k != "" {
			settings[k] = k
		}
	}

	if statusCode < http.StatusBadRequest {
		return nil
	}
	desc := resp.Header.Get(xhttp.AmzFwdErrorMessage)
	if strings.TrimSpace(desc) == "" {
		apiErr := errorCodes.ToAPIErr(ErrInvalidRequest)
		return &apiErr
	}
	code := resp.Header.Get(xhttp.AmzFwdErrorCode)
	if strings.TrimSpace(code) == "" {
		apiErr := errorCodes.ToAPIErr(ErrInvalidRequest)
		apiErr.Description = desc
		return &apiErr
	}

		// needs to be trimmed.
		res, ok := strToInt(strings.TrimSpace(x))
		if !ok {
			return 0, errCastFailure("could not parse as int")
		}
		return res, nil
	case []byte:
		// Parse as number, truncate floating point if
		// needed.
		// String might contain trimming spaces, which
		// needs to be trimmed.
		res, ok := strToInt(strings.TrimSpace(string(x)))
		if !ok {

	bytes, _ := v.ToBytes()
	i, err := strconv.ParseInt(strings.TrimSpace(string(bytes)), 10, 64)
	return i, err == nil
}

// Converts untyped value into float. The bool return implies success
// - it returns false only if there is a conversion failure.
func (v Value) bytesToFloat() (float64, bool) {
	bytes, _ := v.ToBytes()
	i, err := strconv.ParseFloat(strings.TrimSpace(string(bytes)), 64)
	return i, err == nil
}

func parsEnvEntry(envEntry string) (envKV, error) {
	envEntry = strings.TrimSpace(envEntry)
	if envEntry == "" {
		// Skip all empty lines
		return envKV{
			Skip: true,
		}, nil
	}
	if strings.HasPrefix(envEntry, "#") {
		// Skip commented lines
		return envKV{
			Skip: true,
		}, nil
	}
	envTokens := strings.SplitN(strings.TrimSpace(strings.TrimPrefix(envEntry, "export")), config.EnvSeparator, 2)