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1·White space can appear within a preprocessing token only as a part of a header name or between the quotation characters in a character literal or string literal.

仅当作为头名称的一部分，或在字符文字量或字符串文字量的引号字符之间时，空白才可以出现在预处理标记内部。

2·Character and parsed entity references are replaced with the literal characters (excepting special characters).

字符和已解析实体引用替换为文字字符(特殊字符除外)。

3·CDATA sections are replaced with their literal character content.

将cdata节替换为它们的文字字符内容。

4·The simplest character class is a single character, which is just included in the pattern as a literal.

最简单的字符类就是单个字符，它在模式中只是一个字。

5·Literals: Any character that doesn't have special meaning within an expression is considered a literal and matches itself.

文字(Literal)：表达式内任何不具有特殊意义的字符都被看作是一个文字，并与自身匹配。

6·A URI Template is a string value that includes a mixture of literal character sequences and specialized tokens that, when processed with a set of input values, yields a URI. For example.

URI模板是一个字符串值，由文字字符序列和特殊的标记组成，可以将一系列输入值转换为一个URI。

7·The Michael Douglas character in “Wall Street” is Gordon “Gecko” (even Oliver Stone isn’t quite that literal) and the head of Berkshire Hathaway “Warrant Buffet”.

迈克尔•道格拉斯在“华尔街”中出演的角色叫戈登•“蛤蚧”（就是奥利佛•斯通也不敢照字面意思来），伯克希尔哈撒韦公司的领导人是“巴菲特”。

8·If the parameter is a character-based input parameter, then you would specify the literal value surrounded in single quotes.

如果参数是基于字符的输入参数，那么在单引号中指定字面值。

9·If the $ character is not followed by a left brace, letter, or an underscore, the $ character remains unmolested in the text literal.

如果$字符后面不跟着一个左括号，字母或者一个下划线，$符号在文本字面值中就不会有麻烦。

10·Otherwise, no completion was possible, so it falls back to acting like a normal TAB key, by returning a literal TAB character.

否则其他补全将不可行，因此它通过返回一个制表符来充当正常的tab键。