72 lines
1.5 KiB
Text
72 lines
1.5 KiB
Text
%{
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#include "asm_instructions.h"
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#include "symbol_table.h"
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#include "as.tab.h"
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%}
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D [0-9]
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%%
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{D}+(e{D}+)? {
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yylval.nombre = atoi(yytext);
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return tNB;
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}
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"+" {
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yylval.instruction = ADD;
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return tADD;
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}
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"-" {
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yylval.instruction = SOU;
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return tSUB;
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}
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"*" {
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yylval.instruction = MUL;
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return tMUL;
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}
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"/" {
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yylval.instruction = DIV;
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return tDIV;
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}
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"=" { return tEQ; }
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"(" { return tPO; }
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")" { return tPF; }
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";" { return tPV; }
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"," { return tVIRG; }
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"{" { return tAO; }
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"}" { return tAF; }
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"!" { return tNOT; }
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"==" { return tEQ2; }
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"!=" { return tNOTEQ; }
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"<" { return tINF; }
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"<=" { return tINFEQ; }
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">" { return tSUP; }
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">=" { return tSUPEQ; }
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"&&" { return tAND; }
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"||" { return tOR; }
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[ \t\n]+ { }
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"int" { return tINT; }
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"const" { return tCONST; }
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"main" { return tMAIN; }
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"if" { return tIF; }
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"else" { return tELSE; }
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"elsif" { return tELSIF; }
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"while" { return tWHILE; }
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"printf" { return tPRINTF; }
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[a-zA-Z][a-zA-Z0-9_]* {
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yylval.symbol_name = malloc(sizeof(yytext));
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strcpy(yylval.symbol_name, yytext);
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return tID;
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}
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%%
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int yywrap() {
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return 1;
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}
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// int main () {
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// yylex();
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// return 1;
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// }
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