59 lines
2.7 KiB
Plaintext
59 lines
2.7 KiB
Plaintext
/* Lexical Analysis with Flex (1.6.0) We used some of the code from this manual */
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/* so we placed the citation here. */
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/* definitions */
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%option noyywrap
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%{
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#include "typedefs.h"
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%}
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%%
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.|\n
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"integer" {printf("T_INTEGER %s, Token %d\n",yytext, T_INTEGER);} //{return T_INTEGER}
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"address" {printf("T_ADDRESS %s, Token %d\n",yytext, T_ADDRESS);} //{return T_ADDRESS}
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"Boolean" {printf("T_BOOLEAN %s, Token %d\n",yytext, T_BOOLEAN);} //{return T_BOOLEAN}
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"character" {printf("T_CHARACTER %s, Token %d\n",yytext, T_CHARACTER);} //{return T_CHARACTER}
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"string" {printf("T_STRING %s, Token %d\n",yytext, T_STRING);} //{return T_STRING}
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/* KEYWARDS */
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"while" {printf("WHILE %s, Token %d\n",yytext, WHILE);} //{return WHILE}
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"if" {printf("IF %s, Token %d\n",yytext, IF);} //{return IF}
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"then" {printf("THEN %s, Token %d\n",yytext, THEN);} //{return THEN}
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"else" {printf("ELSE %s, Token %d\n",yytext, ELSE);} //{return ELSE}
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"type" {printf("TYPE %s, Token %d\n",yytext, TYPE);} //{return TYPE}
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"function" {printf("FUNCTION %s, Token %d\n",yytext, FUNCTION);} //{return FUNCTION}
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"return" {printf("RETURN %s, Token %d\n",yytext, RETURN);} //{return RETURN}
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"external" {printf("EXTERNAL %s, Token %d\n",yytext, EXTERNAL);} //{return EXTERNAL}
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"as" {printf("AS %s, Token %d\n",yytext, AS);} //{return AS}//%
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/* OPERATORS */
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\+ {printf("ADD %s, Token %d\n",yytext, ADD);} //return ADD
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\- {printf("SUB_OR_NEG %s, Token %d\n",yytext, SUB_OR_NEG);} //return SUB_OR_NEG
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\* {printf("MUL %s, Token %d\n",yytext, MUL);} //return MUL
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\/ {printf("DIV %s, Token %d\n",yytext, DIV);} //return DIV
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\% {printf("REM %s, Token %d\n",yytext, REM);} //return REM
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\< {printf("LESS_THAN %s, Token %d\n",yytext, LESS_THAN);} //return LESS_THAN
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= {printf("EQUAL_TO %s, Token %d\n",yytext, EQUAL_TO);} //return EQUAL_TO
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:= {printf("ASSIGN %s, Token %d\n",yytext, ASSIGN);} //return ASSIGN
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! {printf("NOT %s, Token %d\n",yytext, NOT);} //return NOT
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& {printf("AND %s, Token %d\n",yytext, AND);} //return AND
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\| {printf("OR %s, Token %d\n",yytext, OR);} //return OR
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\. {printf("DOT %s, Token %d\n",yytext, DOT);} //return DOT
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"reserve" {printf("RESERVE %s, Token %d\n",yytext, RESERVE);} //return RESERVE
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"release" {printf("RELEASE %s, Token %d\n",yytext, RELEASE);} //return RELEASE
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int main(int argc, char *argv[]){
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argc--, argv++;
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if ( argc > 0 )
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yyin = fopen( argv[0], "r" );
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else
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yyin = stdin;
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yylex();
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}
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