42 lines
1.8 KiB
Plaintext
42 lines
1.8 KiB
Plaintext
/* Lexical Analysis with Flex (2.6.0) 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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%%
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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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