Mercurial > ~dholland > hg > ag > index.cgi
annotate helpgen/topic.c @ 21:1c9dac05d040
Add lint-style FALLTHROUGH annotations to fallthrough cases.
(in the parse engine and thus the output code)
Document this, because the old output causes warnings with gcc10.
author | David A. Holland |
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date | Mon, 13 Jun 2022 00:04:38 -0400 |
parents | 13d2b8934445 |
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1 #include <assert.h> |
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2 #include <stdio.h> |
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3 #include <stdlib.h> |
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4 #include <string.h> |
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5 |
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6 #include "utils.h" |
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7 #include "topic.h" |
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8 |
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9 #define MAXTITLES 16 |
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10 #define MAXREFS 64 |
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11 |
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12 struct topic { |
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13 char *titles[MAXTITLES]; |
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14 int numtitles; |
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15 char *refs[MAXREFS]; |
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16 int numrefs; |
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17 char *body; |
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18 }; |
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19 |
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20 struct topic *topic_create(void) { |
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21 struct topic *t = domalloc(sizeof(struct topic)); |
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22 t->numtitles = 0; |
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23 t->numrefs = 0; |
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24 t->body = NULL; |
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25 return t; |
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26 } |
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27 |
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28 void topic_destroy(struct topic *t) { |
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29 int i; |
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30 for (i=0; i<t->numtitles; i++) { |
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31 free(t->titles[i]); |
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32 } |
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33 for (i=0; i<t->numrefs; i++) { |
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34 free(t->refs[i]); |
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35 } |
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36 if (t->body) { |
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37 free(t->body); |
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38 } |
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39 free(t); |
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40 } |
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41 |
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42 void topic_addtitle(struct topic *t, const char *s) { |
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43 if (t->numtitles >= MAXTITLES) { |
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44 fprintf(stderr, "Too many titles (increase MAXTITLES) at %s\n", s); |
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45 exit(1); |
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46 } |
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47 t->titles[t->numtitles++] = dostrdup(s); |
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48 } |
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49 |
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50 void topic_addref(struct topic *t, const char *s) { |
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51 if (t->numrefs >= MAXREFS) { |
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52 fprintf(stderr, "Too many refs (increase MAXREFS) at %s\n", s); |
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53 exit(1); |
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54 } |
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55 t->refs[t->numrefs++] = dostrdup(s); |
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56 } |
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57 |
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58 void topic_setbody(struct topic *t, const char *buf, size_t len) { |
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59 size_t i, j, reallen = 0; |
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60 |
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61 for (i=0; i<len; i++) { |
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62 if (buf[i] != '\r') { |
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63 reallen++; |
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64 } |
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65 } |
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66 |
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67 char *text = domalloc(reallen+1); |
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68 for (i=j=0; i<len; i++) { |
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69 if (buf[i] != '\r') { |
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70 text[j++] = buf[i]; |
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71 } |
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72 } |
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73 assert(j==reallen); |
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74 text[reallen] = 0; |
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75 |
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76 t->body = text; |
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77 } |
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78 |
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79 const char *topic_getbody(struct topic *t) { return t->body; } |
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80 int topic_getnumtitles(struct topic *t) { return t->numtitles; } |
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81 const char *topic_gettitle(struct topic *t, int ix) { return t->titles[ix]; } |
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82 int topic_getnumrefs(struct topic *t) { return t->numrefs; } |
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83 const char *topic_getref(struct topic *t, int ix) { return t->refs[ix]; } |