--- /dev/null
+/*
+ * Helper to verify scanner output.
+ * Copyright © 2023 Nick Bowler
+ *
+ * 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 <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+
+#include "scan.h"
+#include "cdecl-internal.h"
+#include "test.h"
+
+/* Stubs */
+static union { struct parse_item item; char buf[1000]; } stub_item;
+struct parse_item *cdecl__alloc_item(size_t sz)
+{
+ return &stub_item.item;
+}
+
+void cdecl__errmsg(unsigned msg)
+{
+}
+
+void cdecl__err(unsigned code, const char *fmt, const char *arg)
+{
+}
+
+size_t cdecl__strlcpy(char *dst, const char *src, size_t len)
+{
+ abort();
+}
+
+#define PROGNAME "scantest"
+static const char *progname = PROGNAME;
+static const char sopts[] = "ECVH";
+static const struct option lopts[] = {
+ { "cdecl", 0, NULL, 'C' },
+ { "english", 0, NULL, 'E' },
+ { "version", 0, NULL, 'V' },
+ { "help", 0, NULL, 'H' },
+ { 0 }
+};
+
+static void print_usage(FILE *f)
+{
+ fprintf(f, "Usage: %s [options] string [string ...]\n", progname);
+}
+
+static void print_help(void)
+{
+ print_usage(stdout);
+ puts("Test the scanner by tokenizing one or more strings.\n");
+ test_print_options(lopts);
+}
+
+enum {
+ MODE_CDECL,
+ MODE_ENGLISH
+};
+
+static int print_uintmax_rec(char *buf, uintmax_t v)
+{
+ int rc = 0;
+
+ if (v > 9) {
+ rc = print_uintmax_rec(buf, v/10);
+ v %= 10;
+ }
+
+ buf[rc] = '0' + v;
+ return rc + 1;
+}
+
+static void print_uintmax(char *buf, uintmax_t v)
+{
+ buf[print_uintmax_rec(buf, v)] = 0;
+}
+
+static int do_scan(const char *s, int mode)
+{
+ YY_BUFFER_STATE state;
+ yyscan_t scanner;
+ YYSTYPE lval;
+ YYLTYPE lloc;
+ int tok;
+
+ if (cdecl__yylex_init_extra(mode, &scanner) != 0)
+ return -1;
+
+ state = cdecl__yy_scan_string(s, scanner);
+
+ while ((tok = cdecl__yylex(&lval, &lloc, scanner))) {
+ const char *tname = cdecl__token_name(tok);
+
+ switch (tok) {
+ case T_UINT:
+ print_uintmax(stub_item.item.s, lval.uintval);
+ lval.item = &stub_item.item;
+ case T_IDENT:
+ printf("%s %s\n", tname, lval.item->s);
+ break;
+ default:
+ printf("%s\n", tname);
+ }
+ }
+ printf("eof\n");
+
+ cdecl__yy_delete_buffer(state, scanner);
+ cdecl__yylex_destroy(scanner);
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ int i, opt, mode = MODE_CDECL;
+
+ if (argc > 0)
+ progname = argv[0];
+
+ while ((opt = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) {
+ switch (opt) {
+ case 'C':
+ mode = MODE_CDECL;
+ break;
+ case 'E':
+ mode = MODE_ENGLISH;
+ break;
+ case 'V':
+ test_print_version(PROGNAME);
+ return EXIT_SUCCESS;
+ case 'H':
+ print_help();
+ return EXIT_SUCCESS;
+ default:
+ print_usage(stderr);
+ return EXIT_FAILURE;
+ }
+ }
+
+ if (!argv[optind]) {
+ print_usage(stderr);
+ return EXIT_FAILURE;
+ }
+
+ for (i = optind; i < argc; i++) {
+ if (do_scan(argv[i], mode) != 0)
+ return EXIT_FAILURE;
+ }
+
+ return 0;
+}
projects / cdecl99.git / commitdiff