Count the number of digits [ lex program part 4 ]

1.How to install Flex for linux ( lexical analyser generators) lex part 1 2.Replace space with $ [ lex program part 2 ] 3. Count the number of lines [lex program part3 ] 4.Count the number of digits [ lex program part 4 ] 5.Accept a string ending with abb [ lex program part 5 ] 6.Remove white spaces from a string using Flex [ lex program part 6 ] 7.Even number of 1's using Flex [ lex program part 7 ] 8.Count the number of signed numbers using Flex [ lex program part 8 ] 9.Count the nuber of Sentences and Words using Flex [ lex program part 9 ]

      
%{

int a=0;

%}

digit[0-9]

%%

{digit} a++;

%%

main()

{

printf("enter string");

yylex();

printf("\n no of digits %d",a);

}
    

lex part 5

Posted in: Lex tutorial