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annotate srogue/options.c @ 96:9fb343307b6b

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Fix some 'test' failures when running 'make install'. When shell variables are unexpectedly empty, 'test' gets the wrong number of arguments and becomes unhappy. Logical AND should not be done with 'test EXPR1 -a EXPR2' in such cases, because 'test' logic does not short-circuit. Replace with 'test EXPR1 && test EXPR2'. Shell logic does short-circuit, and if the first test invocation fails, the second will never occur, and will never encounter missing arguments.
author John "Elwin" Edwards
date Tue, 27 Aug 2013 22:54:28 -0700
parents 3aa87373c908
children 00baf21eb047
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1 /*
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2 * This file has all the code for the option command.
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3 *
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4 * @(#)options.c 9.0 (rdk) 7/17/84
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5 *
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6 * Super-Rogue
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7 * Copyright (C) 1984 Robert D. Kindelberger
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8 * All rights reserved.
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9 *
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10 * Based on "Rogue: Exploring the Dungeons of Doom"
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11 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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12 * All rights reserved.
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13 *
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14 * See the file LICENSE.TXT for full copyright and licensing information.
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15 */
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16
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17 #include <termios.h>
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18 #include <ctype.h>
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19 #include <string.h>
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20 #include "rogue.h"
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21 #include "rogue.ext"
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22
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23 extern struct termios terminal;
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24
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25 /*
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26 * description of an option and what to do with it
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27 */
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28 struct optstruct {
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29 char *o_name; /* option name */
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30 char *o_prompt; /* prompt for interactive entry */
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31 char *o_opt; /* pointer to thing to set */
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32 };
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33
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34 typedef struct optstruct OPTION;
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35
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36 int put_str(), get_str();
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37
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38 OPTION optlist[] = {
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39 { "name", "Name: ", whoami },
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40 { "fruit", "Fruit: ", fruit },
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41 { "file", "Save file: ", file_name }
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42 };
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43 #define NUM_OPTS (sizeof optlist / sizeof (OPTION))
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44 OPTION safeoptlist[] = {
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45 { "fruit", "Fruit: ", fruit },
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46 };
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47 #define NUM_SOPTS (sizeof safeoptlist / sizeof (OPTION))
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48
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49 /*
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50 * print and then set options from the terminal
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51 */
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52 option()
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53 {
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54 reg OPTION *op;
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55 reg int wh;
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56 OPTION *olist;
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57 int olen;
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58
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59 if (use_savedir) {
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60 olist = safeoptlist;
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61 olen = NUM_SOPTS;
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62 }
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63 else {
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64 olist = optlist;
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65 olen = NUM_OPTS;
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66 }
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67
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68 wclear(hw);
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69 touchwin(hw);
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70 /*
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71 * Display current values of options
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72 */
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73 for (op = olist; op < &olist[olen]; op++) {
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74 wh = op - olist;
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75 mvwaddstr(hw, wh, 0, op->o_prompt);
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76 mvwaddstr(hw, wh, 16, op->o_opt);
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77 }
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78 /*
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79 * Set values
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80 */
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81 wmove(hw, 0, 0);
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82 for (op = olist; op < &olist[olen]; op++) {
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83 wmove(hw, op - olist, 16);
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84 if ((wh = get_str(op->o_opt, hw))) {
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85 if (wh == QUIT)
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86 break;
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87 else if (op > olist) {
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88 wmove(hw, op - olist, 0);
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89 op -= 2;
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90 }
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91 else {
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92 putchar(7);
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93 wmove(hw, 0, 0);
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94 op -= 1;
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95 }
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96 }
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97 }
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98 /*
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99 * Switch back to original screen
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100 */
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101 dbotline(hw,spacemsg);
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