string - Constant block 中的原始字符串文字

Question

我正在测试 x509 Certificate Verify example ，这(来自示例)有效:

const rootPEM = `
-----BEGIN CERTIFICATE-----
MIIEBDCCAuygAwIBAgIDAjppMA0GCSqGSIb3DQEBBQUAMEIxCzAJBgNVBAYTAlVT
. . .
yuGnBXj8ytqU0CwIPX4WecigUCAkVDNx
-----END CERTIFICATE-----`

const certPEM = `
-----BEGIN CERTIFICATE-----
MIIDujCCAqKgAwIBAgIIE31FZVaPXTUwDQYJKoZIhvcNAQEFBQAwSTELMAkGA1UE
. . .
yE+vPxsiUkvQHdO2fojCkY8jg70jxM+gu59tPDNbw3Uh/2Ij310FgTHsnGQMyA==
-----END CERTIFICATE-----`

但这不是:

const (
    rootPEM = `
    -----BEGIN CERTIFICATE-----
    MIIEBDCCAuygAwIBAgIDAjppMA0GCSqGSIb3DQEBBQUAMEIxCzAJBgNVBAYTAlVT
    . . .
    yuGnBXj8ytqU0CwIPX4WecigUCAkVDNx
    -----END CERTIFICATE-----`

    certPEM = `
    -----BEGIN CERTIFICATE-----
    MIIDujCCAqKgAwIBAgIIE31FZVaPXTUwDQYJKoZIhvcNAQEFBQAwSTELMAkGA1UE
    . . .
    yE+vPxsiUkvQHdO2fojCkY8jg70jxM+gu59tPDNbw3Uh/2Ij310FgTHsnGQMyA==
    -----END CERTIFICATE-----`
)

使用常量 block /组时有什么变化？ (就这个例子而言，它在 panic: failed to parse root certificate when using the constant block 处失败)

Answer 1

“没有”变化，除了您的分组变体缩进，这意味着原始字符串文字的所有行都以制表符或空格开头，证书解析器可能会冒犯。

像这样尝试:

const (
    rootPEM = `
-----BEGIN CERTIFICATE-----
MIIEBDCCAuygAwIBAgIDAjppMA0GCSqGSIb3DQEBBQUAMEIxCzAJBgNVBAYTAlVT
. . .
yuGnBXj8ytqU0CwIPX4WecigUCAkVDNx
-----END CERTIFICATE-----`

    certPEM = `
-----BEGIN CERTIFICATE-----
MIIDujCCAqKgAwIBAgIIE31FZVaPXTUwDQYJKoZIhvcNAQEFBQAwSTELMAkGA1UE
. . .
yE+vPxsiUkvQHdO2fojCkY8jg70jxM+gu59tPDNbw3Uh/2Ij310FgTHsnGQMyA==
-----END CERTIFICATE-----`
)

(注意:多行原始字符串文字没有缩进。)