令牌 [英] tokens
问题描述
大家好，
从第125页开始，我就会遇到这个问题。
令牌是否属实？在C（philisophically）中，数字/字符/下划线/ * s（以及我没有想到的其他非空格）编译器的数量最少
用于获取可用的
信息。所以，这将是一个象征
" （）
但这个
"（"
本身会不是吗？
像往常一样感谢。
On Sun，2008年8月10日16:20:02 -0700，mdh写道：
大家好，
从第125页开始，这个问题引起了我的兴趣。
C中的令牌（philisophically）是否为数字/字符/下划线/ * s（以及其他非空格）的最小金额是真的吗？有没有想到）编译器使用它来获取可用信息。
在某种程度上。
所以，这将是一个代币
"（）"
如果你的意思是包括引号，然后是。否则，不。
但这个
"（"
本身不会？
所以，不。令牌是一个单词。令牌是最大的字符串
，不能将空格插入而不会将其分成较小的
令牌，从而改变其含义。 （）不是令牌。这是两个令牌，你可以通过写（）来分辨两个令牌。
如果是一个令牌，这不会是允许。 ""是一个令牌，
，因为你不能通过写"来分隔引号。 " - 至少
并没有改变它的含义。
像往常一样感谢。
8月10日下午4:40，Harald van D？| k< true ... @ gmail.comwrote：
< blockquote class =post_quotes>
On Sun，2008年8月10日16:20:02 -0700，mdh写道：
...... a令牌在C（philisophically）是最少的数字
的数字/字符/下划线/ * s（以及我没有想到的其他非空格
）编译器用于获取可用信息。
......令牌是一个单词。令牌是最大的字符串..........
改变其含义。
所以，
（
是一个令牌，因为它有一些对编译器有意义....再获得一些
个字符，看看是否有另一个字符，如果没有，则有一个
错误等等？或发现第二个）所以逗号描述的列表是
参数等等。
这就是为什么我的（）的例子不是单个标记，因为第一个（>
可能是许多不同事物的开始？
On Sun，2008年8月10日17:01:18 -0700，mdh写道：
这就是为什么我的（）的例子不是单个标记，因为第一个（
可能是许多不同事物的开始？
不，您的（）示例不是单个令牌，因为这两个可以分开
。
Hi all,
From p 125, gives rise to this issue for me.
Is it true that a "token" in C ( philisophically ) is the least amount
of digits/chars/underscores/*s ( and other non blank space that I
have not thought of) that the compiler uses to derive useable
information. So, this would be a token
" ( ) "
but this
"( "
by itself would not?
Thanks as usual.
On Sun, 10 Aug 2008 16:20:02 -0700, mdh wrote:Hi all,
From p 125, gives rise to this issue for me.
Is it true that a "token" in C ( philisophically ) is the least amount
of digits/chars/underscores/*s ( and other non blank space that I have
not thought of) that the compiler uses to derive useable information.In a way.
So, this would be a token
" ( ) "If you mean including the quotation marks, then yes. Otherwise, no.
but this
"( "
by itself would not?So, no. A token is a word. A token is the largest string of characters
that cannot have whitespace inserted without breaking it into smaller
tokens, changing its meaning. () is not a token. It is two tokens, which
you can tell from the fact that you can separate the two by writing ( ).
If it were a single token, this would not be allowed. "" is a token,
because you cannot separate the quotation marks by writing " " -- at least
not without changing its meaning.
Thanks as usual.
On Aug 10, 4:40 pm, Harald van D?|k <true...@gmail.comwrote:On Sun, 10 Aug 2008 16:20:02 -0700, mdh wrote:
...... a "token" in C ( philisophically ) is the least amount
of digits/chars/underscores/*s ( and other non blank space that I have
not thought of) that the compiler uses to derive useable information.
...... A token is a word. A token is the largest string of characters..........
changing its meaning.So,
(
is a token as it has some meaning to the compiler.... "get some more
characters, see if followed by another ) and if not, there is an
error" etc? or " found second ) so comma delineated list are
arguments" etc.
Is that why my example of ( ) is not a single token as the first "("
could be the start of a lot of different things?
On Sun, 10 Aug 2008 17:01:18 -0700, mdh wrote:Is that why my example of ( ) is not a single token as the first "("
could be the start of a lot of different things?No, your example of ( ) is not a single token because the two can be
separated.
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