Ruby URI 模块生成非法文件 URI [英] Ruby URI module produces illegal file-URI

问题描述

这是将文件路径转换为 ​​URI 的后续问题.

考虑:

require 'uri'

uri = URI.join('file:///', '/home/user/dir1/dir2/dir3/name.ext')
 => #<URI::Generic:0x0000000263fcc0 URL:file:/home/user/dir1/dir2/dir3/name.ext>

uri.to_s
 => "file:/home/user/dir1/dir2/dir3/name.ext"

结果不是非法的吗?不应该是"file://home/..."，带双斜线吗?

Isn't the result illegal? Shoudln't it be "file://home/...", with a double slash?

推荐答案

没有.file://home/... 指的是主机上名为home"的文件.完整的语法是file:///home/...，带有三个斜杠，其中空的主机组件表示本地主机.然而，大多数识别文件"方案的 URI 解析器也接受只有一个斜杠的 file:/pathname；缺少双斜线意味着跳过主机组件.

No. file://home/... refers to a file on the host named 'home'. The full syntax is file:///home/..., with three slashes, where the empty host component indicates the local host. However, most URI parsers that recognize the 'file' scheme also accept file:/pathname with only one slash; the lack of doubled slashes means the host component is skipped.

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