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asm: adding the parser

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This commit is contained in:
Henrik Hautakoski 2018-11-24 19:58:13 +01:00
parent 16501e40be
commit 3528c467ac
4 changed files with 254 additions and 17 deletions
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38
src/as/as.c
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@ -19,36 +19,42 @@
*/
#include <stdio.h>
#include <stdlib.h>
#include "lexer.h"
#include "parser.h"
int usage(char *program) {
fprintf(stderr, "Usage: %s <string>\n", program);
fprintf(stderr, "Usage: %s <inputfile> [ <outputfile ]\n", program);
return -1;
}
int main(int argc, char **argv) {
FILE *fd;
struct lexer lex;
FILE *fd_in;
FILE *fd_out = stdout;
if (argc < 2)
return usage(argv[0]);
fd = fopen(argv[1], "r");
if (fd == NULL)
fd_in = fopen(argv[1], "r");
if (fd_in == NULL) {
perror("Could not open input file");
return -1;
lexer_init(&lex, fd);
do {
if (lexer_get_next(&lex) < 0)
break;
lexer_print_token(&lex.token);
} while(lex.token.type != TOKEN_EOI);
}
fclose(fd);
// If we have a output file.
if (argc > 2) {
fd_out = fopen(argv[2], "w");
if (fd_out == NULL) {
perror("Could not open output file");
fclose(fd_in);
return -1;
}
}
parse(fd_in, fd_out);
fclose(fd_in);
fclose(fd_out);
return 0;
}