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#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "common.h"
#include "lexer.h"
#include "parser.h"
#include "eval.h"
// TODO: the lexer, parser, and eval functions should return -1 on fatal, and 1 on non fatal error
#define READ_BUF_CAP 512
#define DEFAULT_TOKENS_CAP 8192 // make it a command line arg
lexer_t lexer = NULL;
parser_t parser = NULL;
// evaluator_t eval = NULL;
int main(void)
{
int ret = 1;
char *filename = "files/test1.lisp";
lexer = lexer_create(DEFAULT_TOKENS_CAP);
if(!lexer) {
err("lexer_create: failed");
goto fail;
}
FILE *fp = fopen(filename, "r");
if(!fp) {
err("fopen: %s: %s", filename, strerror(errno));
goto fail;
}
// tokenize input
char buf[READ_BUF_CAP]; size_t bytes = 0;
while((bytes = fread(buf, sizeof(char), READ_BUF_CAP, fp))) {
if(lexer_tokenize(lexer, buf, bytes)) {
fclose(fp); goto fail;
}
if(bytes < READ_BUF_CAP) break;
}
lexer_print_tokens(lexer);
fclose(fp);
parser = parser_create();
if(!parser) {
err("parser_create: failed");
goto fail;
}
if(parser_parse_lexer(parser, lexer)) {
err("parser_parse_lexer: failed");
goto fail;
}
parser_print_ast(parser);
// evaluator = eval_create();
// if(!evaluator) {
// err("eval_create: failed");
// goto fail;
// }
// if(eval_ast(eval, ast)) {
// err("eval_ast: failed");
// goto fail;
// }
ret = 0;
fail:
// eval_destroy(eval);
parser_destroy(parser);
lexer_destroy(lexer);
return ret;
}
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