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