| 1 | /*
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| 2 | * Copyright (c) 1995-2000, Index Data
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| 3 | * See the file LICENSE for details.
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| 4 | * Sebastian Hammer, Adam Dickmeiss
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| 5 | *
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| 6 | * $Log$
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| 7 | * Revision 1.1 2000/08/03 03:12:09 johnmcp
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| 8 | * Added the YAZ toolkit source to the packages directory (for z39.50 stuff)
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| 9 | *
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| 10 | * Revision 1.8 2000/02/29 13:44:55 adam
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| 11 | * Check for config.h (currently not generated).
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| 12 | *
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| 13 | * Revision 1.7 1999/11/30 13:47:12 adam
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| 14 | * Improved installation. Moved header files to include/yaz.
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| 15 | *
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| 16 | * Revision 1.6 1997/09/01 08:54:13 adam
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| 17 | * New windows NT/95 port using MSV5.0. Made prefix query handling
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| 18 | * thread safe. The function options ignores empty arguments when met.
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| 19 | *
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| 20 | * Revision 1.5 1995/12/06 13:00:19 adam
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| 21 | * Minus alone not treated as an option.
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| 22 | *
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| 23 | * Revision 1.4 1995/09/29 17:12:35 quinn
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| 24 | * Smallish
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| 25 | *
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| 26 | * Revision 1.3 1995/09/27 15:03:03 quinn
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| 27 | * Modified function heads & prototypes.
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| 28 | *
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| 29 | * Revision 1.2 1995/05/16 08:51:13 quinn
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| 30 | * License, documentation, and memory fixes
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| 31 | *
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| 32 | * Revision 1.1 1995/03/27 08:35:18 quinn
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| 33 | * Created util library
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| 34 | * Added memory debugging module. Imported options-manager
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| 35 | *
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| 36 | * Revision 1.2 1994/10/04 17:47:10 adam
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| 37 | * Function options now returns arg with error option.
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| 38 | *
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| 39 | * Revision 1.1 1994/08/16 15:57:22 adam
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| 40 | * The first utility modules.
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| 41 | *
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| 42 | */
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| 43 | #if HAVE_CONFIG_H
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| 44 | #include <config.h>
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| 45 | #endif
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| 46 |
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| 47 | #include <stdlib.h>
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| 48 |
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| 49 | #include <yaz/options.h>
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| 50 |
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| 51 | static int arg_no = 1;
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| 52 | static int arg_off = 0;
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| 53 |
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| 54 | int options (const char *desc, char **argv, int argc, char **arg)
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| 55 | {
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| 56 | int ch, i = 0;
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| 57 |
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| 58 | if (arg_no >= argc)
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| 59 | return -2;
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| 60 | if (arg_off == 0)
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| 61 | {
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| 62 | while (argv[arg_no][0] == '\0')
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| 63 | {
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| 64 | arg_no++;
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| 65 | if (arg_no >= argc)
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| 66 | return -2;
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| 67 | }
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| 68 | if (argv[arg_no][0] != '-' || argv[arg_no][1] == '\0')
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| 69 | {
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| 70 | *arg = argv[arg_no++];
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| 71 | return 0;
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| 72 | }
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| 73 | arg_off++;
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| 74 | }
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| 75 | ch = argv[arg_no][arg_off++];
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| 76 | while (desc[i])
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| 77 | {
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| 78 | int desc_char = desc[i++];
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| 79 | int type = 0;
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| 80 | if (desc[i] == ':')
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| 81 | { /* string argument */
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| 82 | type = desc[i++];
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| 83 | }
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| 84 | if (desc_char == ch)
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| 85 | { /* option with argument */
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| 86 | if (type)
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| 87 | {
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| 88 | if (argv[arg_no][arg_off])
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| 89 | {
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| 90 | *arg = argv[arg_no]+arg_off;
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| 91 | arg_no++;
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| 92 | arg_off = 0;
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| 93 | }
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| 94 | else
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| 95 | {
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| 96 | arg_no++;
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| 97 | arg_off = 0;
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| 98 | if (arg_no < argc)
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| 99 | *arg = argv[arg_no++];
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| 100 | else
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| 101 | *arg = "";
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| 102 | }
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| 103 | }
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| 104 | else /* option with no argument */
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| 105 | {
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| 106 | if (argv[arg_no][arg_off])
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| 107 | arg_off++;
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| 108 | else
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| 109 | {
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| 110 | arg_off = 0;
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| 111 | arg_no++;
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| 112 | }
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| 113 | }
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| 114 | return ch;
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| 115 | }
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| 116 | }
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| 117 | *arg = argv[arg_no]+arg_off-1;
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| 118 | arg_no = arg_no + 1;
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| 119 | arg_off = 0;
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| 120 | return -1;
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| 121 | }
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