dragon-book-exercise-answers

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found this answer wrong

james007aonderson

found something wrong in solution

james007aonderson

 may be `if (lookahead == t)`

Linxxx

I modify three places in 3.3.5-3, in 3.3md

1

origin answer: \/\*([^*"]*|".*"|\*+[^/])*\*\/ 1.add \ in [^*"], i.e, [^*"] -> [^\*"] 2.remove * after [^*"], i.e, [^*"]* -> [^*"] 3.add (\*)* before the last occurrence of */ so, my answer...

iaxax

3.3.5-(3) 的解答有问题

1

考虑一个例子： `/* a\" */` 它是一个合法的评论却不符合答案所给的形式： `\/\*([^*"]*|".*"|\*+[^/])*\*\/`

Mutefish0

Solution for 3.3.5-(4) is wrong

2

One could easily see that it accepts the strings like _1010_ which has 1 and 0 repeated. The given solution seems to be accepting the language of strings of {0,1,2}...

sivaraam

Fix lost label in 2.8.1 exercise code

rynkevich

In state 0, the transfer state of the ε maybe 1 and 3

qha0731

dvoprm

dvoprm