K & R C Programs Exercise 6-1.

K and R C, Solution to Exercise 6-1:
K and R C Programs Exercises provides the solution to all the exercises in the C Programming Language (2nd Edition). You can learn and solve K&R C Programs Exercise.
C Program to write a routine that properly handles underscores, string constants, comments, or preprocessor control lines.Read more about C Programming Language .

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//getword: get next word or character from input
int getword(char *word, int lim)
int c, d, comment(void), getch(void);
void ungetch(int);
char *w = word;
while(isspace(c = getch()))
if(c !=EOF)
*w++ = c;
if(isalpha(c) || c == '-' || c == '#'){
for(; --lim > 0; w++)
if(!isalnum(*w = getch()) && *w != '-') {
else if(c == ''' || c == '\'){
for( ; --lim > 0; w++)
if(((*w = getch()) == '\')
*++w = getch();
else if(*w == c) {
}else if(*w == EOF)
}else if(c == '/')
if((d = getch()) == '*')
c = comment();
*w = '';
return c;

//comment: skip over comment and return a character
int comment()
int c;
while((c = getch()) != EOF)
if(c == '*')
if((c = getch()) == '/')
return c;

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