pos

#commands

First, make sure you have Flex installed:

For installing on Ubuntu- sudo apt-get install flex

  1. Save as analyzer.l
  2. Run: flex analyzer.l
  3. Compile: gcc lex.yy.c -o analyzer -lfl
  4. Execute: ./analyzer


 %{

#include <stdio.h>

#include <ctype.h>

%}


%%

[ \t\n]+                  ;


[0-9]+                    { printf("Number\t\t=> %s\n", yytext); }

[.,!?'"-]                 { printf("Punctuation\t=> %s\n", yytext); }


"the"|"a"|"an"            { printf("Article\t\t=> %s\n", yytext); }

"I"|"you"|"he"|"she"|"it"|"we"|"they" { printf("Pronoun\t\t=> %s\n", yytext); }

"I'm"|"you're"|"he's"|"she's"|"it's"|"we're"|"they're" { printf("Contraction\t=> %s\n", yytext); }


"am"|"is"|"are"|"was"|"were"|"be"|"being"|"been" { printf("Verb\t\t=> %s\n", yytext); }

"have"|"has"|"had"|"do"|"does"|"did" { printf("Verb\t\t=> %s\n", yytext); }

"can"|"could"|"shall"|"should"|"will"|"would"|"may"|"might"|"must" { printf("Modal Verb\t=> %s\n", yytext); }

"dread"|"run"|"arrives"|"stop"|"light"|"give"|"kill"|"imagines"|"divide" { printf("Verb\t\t=> %s\n", yytext); }


"thing"|"curiosity"|"reason"|"cigarette"|"power"|"generation" { printf("Noun\t\t=> %s\n", yytext); }

"intelligence"|"wisdom"|"human"|"beings"|"instinct"|"thinking" { printf("Noun\t\t=> %s\n", yytext); }

"urge"|"things"|"groups"|"gap"|"destiny"|"same" { printf("Noun\t\t=> %s\n", yytext); }


"important"|"own"|"every"|"intelligent"|"wiser"|"strong" { printf("Adjective\t=> %s\n", yytext); }

"dramatic"|"basic"|"distinct"|"empty"|"all"|"fine" { printf("Adjective\t=> %s\n", yytext); }


"not"|"never"|"how"|"very"|"more"|"than" { printf("Adverb\t\t=> %s\n", yytext); }

"before"|"after"          { printf("Adverb\t\t=> %s\n", yytext); }


"to"|"for"|"from"|"by"|"in"|"on"|"at"|"with" { printf("Preposition\t=> %s\n", yytext); }

"about"|"between"|"after"|"before"|"into"|"through" { printf("Preposition\t=> %s\n", yytext); }


"and"|"but"|"or"|"if"|"that"|"than" { printf("Conjunction\t=> %s\n", yytext); }


"hello"|"thank"           { printf("Interjection\t=> %s\n", yytext); }


[A-Za-z]+                 { printf("Noun/Other\t=> %s\n", yytext); }

.                         { printf("Unknown\t\t=> %s\n", yytext); }

%%


int yywrap() { return 1; }


int main() {

    yylex();

    return 0;

}

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