作者HZYSoft (pcman.ptt.cc)
看板PCman
标题[释疑] 跟大家说明一下关於网址
时间Fri Jan 16 21:27:22 2004
之前的版本一直都没有支援大写的网址，其实是因为没想到有人会用大写
因为网址好好的本来就是小写的，干麻有人故意要打大写? 所以没去管大写
事实上，依照原本的标准，网址应该要是小写才对，所以本来也不该用大写
但是查询过标准文件之後发现，上面还是标明了，虽然网址是小写，负责解读网址
的程式要有点弹性，把大写也当作小写，也就是也要允许 HTTP 的使用，虽然
照本来的规定确实应该是小写http才对，但是我刚刚又查了标准文件
其中有明文要求相关程式要把大写当成小写处理，所以下一版一定会支援大写的 HTTP
有兴趣的网友参阅相关文件 ftp://ftp.rfc-editor.org/in-notes/rfc1738.txt
(我这里节录重点部份： 节录自 RFC1738 standard 重点我标上黄色)
2.1. The main parts of URLs
A full BNF description of the URL syntax is given in Section 5.
In general, URLs are written as follows:
<scheme>:<scheme-specific-part>
A URL contains the name of the scheme being used (<scheme>) followed
by a colon and then a string (the <scheme-specific-part>) whose
interpretation depends on the scheme.
Scheme names consist of a sequence of characters. The lower
case letters "a"--"z", digits, and the characters plus ("+"), period
("."), and hyphen ("-") are allowed. For resiliency, programs
interpreting URLs should treat upper case letters as equivalent to
lower case in scheme names (e.g., allow "HTTP" as well as "http").
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