PCD PROGRAMS : Implementation of a lexical analyzer to separate subject, verb, & object from given English statement.

Input:

%{
%}

%%
[\t ]+
is |
am |
go|Mango {printf("\n%s: is a verb",yytext);}
I|she|we|he|i {printf("\n%s : is a subject ",yytext);}
eat {printf("\n%s : is a object ",yytext);}
[a-zA-z]+ {printf("\n%s: is not verb",yytext);}


%%

main()}
{
yylex();

Output:

database@database-Veriton-Series:~/Desktop$ lex frist.l

database@database-Veriton-Series:~/Desktop$ cc lex.yy.c -ll

database@database-Veriton-Series:~/Desktop$ ./a.out

i eat mango

i : is a subject 

eat : is a object 

mango: is not verb

PCD PROGRAM : Implementation of a lexical analyzer to count total number of words, character,special Symbolcount and line from given.

Input:

%{

#include<stdio.h>

int w=0,d=0,ln=0,c=0;

int s=0;

%}

%%

[A-Z|a-z]+ {w++; c=c+yyleng;}

[0-9]+ {d++;}

[\n] {ln++;}

. {s=s+yyleng;}

%%

int main(int argc, char *argv[50])

{

FILE *fp;

yylex();

printf(" Wordcount= %d\n Numbercount= %d\n",w,d);

printf(" Charcount= %d\n Linecount= %d\n",c,ln);

printf(" specialSymbolcount= %d\n",s);

}

Output:

database@database-Veriton-Series:~/Desktop$ lex second.l

database@database-Veriton-Series:~/Desktop$ cc lex.yy.c -ll

database@database-Veriton-Series:~/Desktop$ ./a.out

more.mdsb@gmail.com

 Wordcount= 4

 Numbercount= 0

 Charcount= 16

 Linecount= 1

 specialSymbolcount= 3

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