55 lines
1.7 KiB
Plaintext
55 lines
1.7 KiB
Plaintext
%{
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#include <string.h>
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#include <stdio.h>
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#include "def.tab.hh"
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#define INFILE_ERROR 1
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#define OUTFILE_ERROR 2
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void yyerror(const char *msg, ...);
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%}
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%option noyywrap
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%%
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"let" {fprintf(stdout, "LET\n"); return LET;}
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"Int" {fprintf(stdout, "INT_TYPE\n"); return INT_TYPE;}
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":" {fprintf(stdout, ":\n"); return COLON;}
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";" {fprintf(stdout, ";\n"); return SEMICOLON;}
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"print_integer" {fprintf(stdout, "PRINT_INT\n"); return PRINT_INT;}
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"print_float" {fprintf(stdout, "PRINT_FLOAT\n"); return PRINT_FLOAT;}
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"print_string" {fprintf(stdout, "PRINT_STRING\n"); return PRINT_STRING;}
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"read_integer" {fprintf(stdout, "READ_INT\n"); return READ_INT;}
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"read_float" {fprintf(stdout, "READ_FLOAT\n"); return READ_FLOAT;}
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\+ {fprintf(stdout, "+\n"); return '+';}
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\* {fprintf(stdout, "*\n"); return '*';}
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\( {fprintf(stdout, "(\n"); return '(';}
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\) {fprintf(stdout, ")\n"); return ')';}
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\/ {fprintf(stdout, "/\n"); return '/';}
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\- {fprintf(stdout, "-\n"); return '-';}
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\= {fprintf(stdout, "=\n"); return '=';}
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\"[^\"]*\" {
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fprintf(stdout, "string literal: %s\n", yytext);
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yylval.text = strdup(yytext);
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return STRING_LIT;
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}
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[0-9]+ {
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fprintf(stdout, "liczba: %s\n", yytext);
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yylval.ival = atoi(yytext);
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return INT_LIT;
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}
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[A-Za-z_][A-Za-z0-9_]* {
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fprintf(stdout, "identyfikator: %s\n", yytext);
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yylval.text = strdup(yytext);
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return ID;
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}
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[ \t]+ {;}
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\n {yylineno++;}
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. {yyerror("Blad leksykalny\n");}
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%%
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void yyerror(const char *msg, ...)
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{
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printf("%d: %s", yylineno, msg);
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exit(1);
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}
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