72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
/*
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* interpreter.c: test interpreter
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*
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* Copyright (c) 2017, Přemysl Janouch <p.janouch@gmail.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#include "ell.c"
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int
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main (int argc, char *argv[]) {
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FILE *fp = stdin;
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if (argc > 1 && !(fp = fopen (argv[1], "rb"))) {
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fprintf (stderr, "%s: %s\n", argv[1], strerror (errno));
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return 1;
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}
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int c;
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struct buffer buf = BUFFER_INITIALIZER;
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while ((c = fgetc (fp)) != EOF)
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buffer_append_c (&buf, c);
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buffer_append_c (&buf, 0);
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fclose (fp);
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struct parser parser;
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parser_init (&parser, buf.s, buf.len - 1);
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const char *e = NULL;
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struct item *program = parser_run (&parser, &e);
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#ifndef NDEBUG
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printf ("\x1b[1m%s\x1b[0m\n", buf.s);
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print_tree (program, 0);
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printf ("\n\n");
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#endif
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free (buf.s);
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if (e) {
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printf ("%s: %s\n", "parse error", e);
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return 1;
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}
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parser_free (&parser);
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struct context ctx;
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context_init (&ctx);
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if (!init_runtime_library (&ctx))
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printf ("%s\n", "runtime library initialization failed");
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struct item *result = NULL;
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(void) execute (&ctx, program, &result);
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item_free_list (result);
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item_free_list (program);
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const char *failure = ctx.error;
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if (ctx.memory_failure)
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failure = "memory allocation failure";
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if (failure)
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printf ("%s: %s\n", "runtime error", failure);
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context_free (&ctx);
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return 0;
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}
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