Description
If the source contained
"To be or not to be," quoth the bard, "that is the question."
then the typeset document produced by TEX would not contain the desired form: "To be or not to be," quoth the bard, "that is the question." In order to produce the desired form, the source file must contain the sequence:
``To be or not to be,'' quoth the bard, ``that is the question.''
You are to write a program which converts text containing double-quote (") characters into text that is identical except that double-quotes have been replaced by the two-character sequences required by TEX for delimiting quotations with oriented double-quotes.
The double-quote (") characters should be replaced appropriately by either `` if the " opens a quotation and by '' if the " closes a quotation. Notice that the question of nested quotations does not arise: The first " must be replaced by ``, the next by '',
the next by ``, the next by '', the next by ``, the next by '', and so on.
Input
Output
- the first " in each pair is replaced by two ` characters: `` and
- the second " in each pair is replaced by two ' characters: ''.
Sample Input
"To be or not to be," quoth the Bard, "that
is the question".
The programming contestant replied: "I must disagree.
To `C' or not to `C', that is The Question!"
Sample Output
``To be or not to be,'' quoth the Bard, ``that
is the question''.
The programming contestant replied: ``I must disagree.
To `C' or not to `C', that is The Question!''
简单来说……就是把这样的引号:
"
改成
``
或者
''
这样的。
紫书上面(UVA272)原题。
#include<stdio.h>
int main()
{
char c;int flag=;
while((c=getchar())!=EOF){
if(c=='"'){
if(flag==) {printf("``");flag=-flag;}
else if(flag==) {printf("''");flag=-flag;}
}else{
printf("%c",c);
}
}
}
当然……紫书上面的就很很很简洁……膜拜一下……