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annotate lwlib/lw_stringlist.c @ 322:69adaab94ffd

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Add notes about coding style and submission guidelines. As became clear from recent conversation, matching submitted code to the format of the existing code is not an obvious thing to do. (It should be but apparently it just doesn't occur to people.) Some description of the coding style is now present in the README. Additionally, submission guidelines have also been added to make it clear that patches (diffs) are the preferred means of providing code changes.
author William Astle <lost@l-w.ca>
date Mon, 03 Mar 2014 21:54:12 -0700
parents a1a88a8ddc98
children
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1 /*
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2 lw_stringlist.c
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3
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4 Copyright © 2010 William Astle
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5
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6 This file is part of LWTOOLS.
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7
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8 LWTOOLS is free software: you can redistribute it and/or modify it under the
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9 terms of the GNU General Public License as published by the Free Software
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10 Foundation, either version 3 of the License, or (at your option) any later
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11 version.
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12
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13 This program is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 more details.
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17
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18 You should have received a copy of the GNU General Public License along with
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19 this program. If not, see <http://www.gnu.org/licenses/>.
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20 */
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21
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22 #include <stdlib.h>
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23
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24 #define ___lw_stringlist_c_seen___
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25 #include "lw_stringlist.h"
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26 #include "lw_string.h"
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27 #include "lw_alloc.h"
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28
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29 lw_stringlist_t lw_stringlist_create(void)
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30 {
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31 lw_stringlist_t s;
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34 s = lw_alloc(sizeof(struct lw_stringlist_priv));
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35 s -> strings = NULL;
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36 s -> nstrings = 0;
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37 s -> cstring = 0;
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38
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39 return s;
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40 }
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41
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42 void lw_stringlist_destroy(lw_stringlist_t S)
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43 {
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44 if (S)
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45 {
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46 int i;
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47 for (i = 0; i < S -> nstrings; i++)
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48 {
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49 lw_free(S -> strings[i]);
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50 }
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51 lw_free(S -> strings);
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52 lw_free(S);
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53 }
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54 }
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55
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56 void lw_stringlist_addstring(lw_stringlist_t S, char *str)
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57 {
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58 S -> strings = lw_realloc(S -> strings, sizeof(char *) * (S -> nstrings + 1));
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59 S -> strings[S -> nstrings] = lw_strdup(str);
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60 S -> nstrings++;
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61 }
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62
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63 void lw_stringlist_reset(lw_stringlist_t S)
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64 {
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65 S -> cstring = 0;
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66 }
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67
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68 char *lw_stringlist_current(lw_stringlist_t S)
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69 {
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70 if (S -> cstring >= S -> nstrings)
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71 return NULL;
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72 return S -> strings[S -> cstring];
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73 }
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74
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75 char *lw_stringlist_next(lw_stringlist_t S)
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76 {
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77 S -> cstring++;
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78 return lw_stringlist_current(S);
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79 }
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80
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81 int lw_stringlist_nstrings(lw_stringlist_t S)
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82 {
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83 return S -> nstrings;
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84 }
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85
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86 lw_stringlist_t lw_stringlist_copy(lw_stringlist_t S)
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87 {
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88 lw_stringlist_t r;
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89
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90 r = lw_alloc(sizeof(lw_stringlist_t));
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91 r -> nstrings = S -> nstrings;
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92 if (S -> nstrings)
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93 {
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94 int i;
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95
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96 r -> strings = lw_alloc(sizeof(char *) * S -> nstrings);
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97 for (i = 0; i < S -> nstrings; i++)
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98 {
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99 r -> strings[i] = lw_strdup(S -> strings[i]);
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100 }
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101 }
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102 return r;
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103 }