如何使NSString路径（文件名）安全 [英] How to make an NSString path (file name) safe

问题描述

我使用非常棘手的战斗方法:)使像'Fi？le * / Name'这样的字符串安全使用作为文件名，如'File_Name'。
我敢肯定有一个可可的方式来转换它。我确定最好的地方是这里：）

I'm using very tricky fighting methods :) to make a string like 'Fi?le*/ Name' safe for using as a file name like 'File_Name'. I'm sure there is a cocoa way to convert it. And I'm sure the best place to ask is here :)

谢谢！

推荐答案

除非你显式地运行shell或通过使用诸如 popen 或系统，没有理由转义除了路径名分隔符之外的任何内容。

Unless you're explicitly running the shell or implicitly running the shell by using a function such as popen or system, there's no reason to escape anything but the pathname separator.

您可能还希望强制文件名不以句号开头会导致Finder隐藏文件），并且也应该强制它不是空的，并且少于 NAME_MAX 个字符*长。

You may also want to enforce that the filename does not begin with a full stop (which would cause Finder to hide the file) and probably should also enforce that it is not empty and is fewer than NAME_MAX characters* long.

* syslimits.h 说字节，但如果你通过文件管理器，它是字符。我不知道哪个是适合Cocoa的。

*syslimits.h says bytes, but if you go through File Manager, it's characters. I'm not sure which is right for Cocoa.

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