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#include <stdio.h>
#include <string.h>
#include "eval.h"
#include "lex.h"
#include "mem.h"
#include "parse.h"
#include "print.h"
#define LINE_LENGTH 139
fuspel* parse_file(fuspel* already_parsed, char* fname) {
token_list* tokens = NULL;
fuspel* pgm;
FILE* f;
char* fname_;
fname_ = my_calloc(1, strlen(fname) + 6);
strcpy(fname_, fname);
strcat(fname_, ".fusp");
f = fopen(fname_, "r");
if (!f) {
fprintf(stderr, "Couldn't read %s\n", fname_);
exit(EXIT_FAILURE);
}
printf("Lexing %s...\n", fname_);
while (!feof(f)) {
char program[LINE_LENGTH];
if (!fgets(program, LINE_LENGTH, f)) {
if (feof(f))
break;
fprintf(stderr, "Couldn't read input.\n");
exit(EXIT_FAILURE);
}
tokens = lex(tokens, program);
if (!tokens) {
fprintf(stderr, "Couldn't lex program.\n");
exit(EXIT_FAILURE);
}
}
printf("Parsing %s...\n", fname_);
my_free(fname_);
pgm = parse(tokens);
free_token_list(tokens);
my_free(tokens);
concat_fuspel(pgm, already_parsed);
return pgm;
}
int main(int argc, char* argv[]) {
expression* result;
fuspel* pgm = NULL;
int i;
if (argc < 2) {
fprintf(stderr, "Usage: %s file [file [file [..]]]\n", argv[0]);
exit(EXIT_FAILURE);
}
for (i = 1; i < argc; i++) {
pgm = parse_file(pgm, argv[i]);
}
if (!pgm) {
fprintf(stderr, "Couldn't parse program.\n");
exit(EXIT_FAILURE);
}
printf("\n");
print_fuspel(pgm);
printf("\n\n");
result = eval_main(pgm);
if (result) {
print_expression(result);
printf("\n");
free_expression(result);
my_free(result);
}
free_fuspel(pgm);
my_free(pgm);
return 0;
}
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