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/**
* @file shell.c
* File loader to test scripts in host environment
*
* Copyright (C) 2018 Clyne Sullivan
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "parser.h"
int print(instance *it)
{
variable *s = igetarg(it, 0);
if (s->type == NUMBER) {
if (s->value.f == (int)s->value.f)
printf("%d\n", (int)s->value.f);
else
printf("%.3f\n", s->value.f);
} else if (s->value.p != 0) {
printf("%s\n", (char *)s->value.p);
}
return 0;
}
int gets(instance *it)
{
char *line = 0;
size_t size;
getline(&line, &size, stdin);
*strchr(line, '\n') = '\0';
variable *v = make_vars(0, line);
free(line);
ipush(it, (size_t)v);
return 0;
}
int main(int argc, char **argv)
{
if (argc != 2) {
printf("Usage: %s file\n", argv[0]);
return -1;
}
FILE *fp = fopen(argv[1], "r");
if (fp == 0) {
printf("Could not open file: %s\n", argv[1]);
return -1;
}
instance *it = inewinstance();
inew_cfunc(it, "print", print);
inew_cfunc(it, "gets", gets);
char *line = 0;
size_t size;
int result;
while (getline(&line, &size, fp) != -1) {
*strchr(line, '\n') = '\0';
result = iaddline(it, line);
if (result != 0)
printf("Error: %d\n", result);
}
free(line);
fclose(fp);
irun(it);
idelinstance(it);
return 0;
}
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