diff options
Diffstat (limited to 'gnu/usr.bin/groff/lookbib/lookbib.cc')
-rw-r--r-- | gnu/usr.bin/groff/lookbib/lookbib.cc | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/gnu/usr.bin/groff/lookbib/lookbib.cc b/gnu/usr.bin/groff/lookbib/lookbib.cc new file mode 100644 index 0000000..e721e94 --- /dev/null +++ b/gnu/usr.bin/groff/lookbib/lookbib.cc @@ -0,0 +1,127 @@ +// -*- C++ -*- +/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc. + Written by James Clark (jjc@jclark.com) + +This file is part of groff. + +groff 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 2, or (at your option) any later +version. + +groff 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 groff; see the file COPYING. If not, write to the Free Software +Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> +#include <errno.h> + +#include "errarg.h" +#include "error.h" +#include "lib.h" +#include "cset.h" + +#include "refid.h" +#include "search.h" + +extern "C" { + int isatty(int); +} + +static void usage() +{ + fprintf(stderr, "usage: %s [-v] [-i XYZ] [-t N] database ...\n", + program_name); + exit(1); +} + +int main(int argc, char **argv) +{ + program_name = argv[0]; + static char stderr_buf[BUFSIZ]; + setbuf(stderr, stderr_buf); + int opt; + while ((opt = getopt(argc, argv, "vVi:t:")) != EOF) + switch (opt) { + case 'V': + verify_flag = 1; + break; + case 'i': + linear_ignore_fields = optarg; + break; + case 't': + { + char *ptr; + long n = strtol(optarg, &ptr, 10); + if (n == 0 && ptr == optarg) { + error("bad integer `%1' in `t' option", optarg); + break; + } + if (n < 1) + n = 1; + linear_truncate_len = int(n); + break; + } + case 'v': + { + extern const char *version_string; + fprintf(stderr, "GNU lookbib version %s\n", version_string); + fflush(stderr); + break; + } + case '?': + usage(); + default: + assert(0); + } + if (optind >= argc) + usage(); + search_list list; + for (int i = optind; i < argc; i++) + list.add_file(argv[i]); + if (list.nfiles() == 0) + fatal("no databases"); + char line[1024]; + int interactive = isatty(fileno(stdin)); + for (;;) { + if (interactive) { + fputs("> ", stderr); + fflush(stderr); + } + if (!fgets(line, sizeof(line), stdin)) + break; + char *ptr = line; + while (csspace(*ptr)) + ptr++; + if (*ptr == '\0') + continue; + search_list_iterator iter(&list, line); + const char *start; + int len; + for (int count = 0; iter.next(&start, &len); count++) { + if (fwrite(start, 1, len, stdout) != len) + fatal("write error on stdout: %1", strerror(errno)); + // Can happen for last reference in file. + if (start[len - 1] != '\n') + putchar('\n'); + putchar('\n'); + } + fflush(stdout); + if (interactive) { + fprintf(stderr, "%d found\n", count); + fflush(stderr); + } + } + if (interactive) + putc('\n', stderr); + return 0; +} + |