Unicode 和 html 个实体
Unicode and html emtities
我有一个带有 charset=utf-8 和 运行 Bootstrap 3.7 以及 html5 doctype 的站点。
好像有人插入这个：
<div>‹text›</div>
它以错误的方式呈现 - 像这样：
?tekst?
如果我们使用它就有效：
<div>‹text›</div>
或
<div>‹text›</div>
这给了我们：‹text›
但我想知道为什么第一组unicode字体不起作用？
如 this W3C Recommendation 中所定义（HTML 也支持）：
Character and Entity References
[Definition: A character reference refers to a specific character in
the ISO/IEC 10646 character set, for example one not directly
accessible from available input devices.]
Character Reference
CharRef ::= '&#' [0-9]+ ';' | '&#x' [0-9a-fA-F]+ ';'
Well-formedness constraint: Legal Character. Characters referred to
using character references must match the production for Char
(any Unicode character, excluding the surrogate blocks, FFFE, and
FFFF.).
If the character reference begins with " &#x ", the digits and
letters up to the terminating ; provide a hexadecimal
representation of the character's code point in ISO/IEC
10646.
If it begins just with " &# ", the digits up to the
terminating ; provide a decimal representation of the character's
code point.
重要：character codes … are synchronized between Unicode and ISO/IEC 10646
我有一个带有 charset=utf-8 和 运行 Bootstrap 3.7 以及 html5 doctype 的站点。
好像有人插入这个：
<div>‹text›</div>
它以错误的方式呈现 - 像这样：
?tekst?
如果我们使用它就有效：
<div>‹text›</div>
或
<div>‹text›</div>
这给了我们：‹text›
但我想知道为什么第一组unicode字体不起作用？
如 this W3C Recommendation 中所定义（HTML 也支持）：
Character and Entity References
[Definition: A character reference refers to a specific character in the ISO/IEC 10646 character set, for example one not directly accessible from available input devices.]
Character Reference
CharRef ::= '&#' [0-9]+ ';' | '&#x' [0-9a-fA-F]+ ';'Well-formedness constraint: Legal Character. Characters referred to using character references must match the production for Char (any Unicode character, excluding the surrogate blocks, FFFE, and FFFF.).
If the character reference begins with "
&#x", the digits and letters up to the terminating;provide a hexadecimal representation of the character's code point in ISO/IEC 10646.
If it begins just with "&#", the digits up to the terminating;provide a decimal representation of the character's code point.
重要：character codes … are synchronized between Unicode and ISO/IEC 10646