This post was published long ago, when I was a student and an amateur blogger. The links might be outdated and content may not be useful anymore. Please read this content keeping its age in mind.
Subject : System Software Laboratory
Branch : Information Science & Engineering
Semester : 6
University : VTU
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PART – A
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1b. Program to count the numbers of comment lines in a given C program. Also eliminate them and copy the resulting program into separate file.
%{
int c=0,state=1;
%}
%%
“/” { state=0;}
“/” { c++; if (!state) state=1;}
{ if (state==1)
fprintf(yyout,”%s”,yytext);
}
%%
FILE * fp;
main(int argc,char ** argv)
{
if(argc<=1)
{
printf(“nNo file”);
exit(1);
}
fp=fopen(argv[1],"w");
if(!fp)
{
printf("nNo output file");
exit(1);
}
yyout=fp;
fp=fopen(argv[1],"r");
if(!fp)
{
printf("nNo inpput file");
exit(1);
}
yyin=fp;
yylex();
printf("nNumber of comment lines : %d",c);
}
yywrap()
{
if(state==0)
{
printf(“nUnterminated commennt”);
return 1;
}
}
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3 Responses
This Answer doesn't solve eliminating the comments!!!!
Dear Shashank,
I have not eliminated any comments from the site. Which eliminated comments are you talking about?
Hey Sandeep, I'm talking about the question which says that we need to eliminate the comments also along with counting no. of comments…Que goes like this:
Program to count the numbers of comment lines in a given C program. Also ELIMINATE them and COPY THE RESULTING PROG INTO SEPARATE FILE. Ur prog just counts the comments, the rest of the que is left unsolved…