电话URI中的加号是否应该编码? [英] Should the plus in tel URIs be encoded?

问题描述

在URI中，空格可以编码为+.既然是这种情况，那么在创建带有国际前缀的电话URI时是否应该对前导加号进行编码?

In a URI, spaces can be encoded as +. Since this is the case, should the leading plus be encoded when creating tel URIs with international prefix?

哪个更好?两者都在实践中起作用吗?

Which is better? Do both work in practice?

<a href="tel:+1234">Call me</a>
<a href="tel:%2B1234">Call me</a>

推荐答案

否.

来自RFC 3966的第3 部分(电话号码):

From section 3 of RFC 3966 (The tel URI for Telephone Numbers):

如果保留字符为"+"，;"，"=和?"用作"tel" URI组件之间的定界符，不得对它们进行百分比编码.

If the reserved characters "+", ";", "=", and "?" are used as delimiters between components of the "tel" URI, they MUST NOT be percent encoded.

如果+是参数值的一部分，则只能对其进行百分比编码:

You would only percent-encode a + if it’s part of a parameter value:

如果这些字符["+"，;"，"="和?"]出现在tel URI参数值中，则必须按百分比进行编码.

These characters ["+", ";", "=", and "?"] MUST be percent encoded if they appear in tel URI parameter values.

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我不确定前导+是否表示它是全局数字，算作定界符，但全局数字的定义为:

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I’m not sure if the leading +, which indicates that it’s a global number, counts as delimiter, but the definition of a global number says:

全球唯一的数字由前导"+"字符标识.

Globally unique numbers are identified by the leading "+" character.

因此它指的是+，而不是百分比编码的东西.

So it refers to +, not to something percent-encoded.

示例明确指出，这不应该是百分比-编码，例如:

And also the examples make clear that it’s not supposed to be percent-encoded, e.g.:

tel:[phone]

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请注意，tel URI中的空格(例如，参数值中的空格)可能未使用+进行编码.在任何URI中都不能使用+代替%20作为空格字符.只有在其URI方案明确定义了URI的URI中才有可能.

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Note that spaces in tel URIs (e.g., in parameter values) may not be encoded with a +. Using + instead of %20 for a space character is not something that may be done in any URI; it’s only possible in URIs whose URI scheme explicitly defines that.

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