helpmod2/hcensor.c

   1 #include <stdlib.h>
   2 #include <stdio.h> /* for debug */
   3 #include <string.h>
   4
   5 #include "hcensor.h"
   6
   7 #include "hgen.h"
   8
   9 hcensor *hcensor_get_by_pattern(hcensor *hcens, const char *pat)
  10 {
  11     for (;hcens;hcens = hcens->next)
  12         if (!ci_strcmp(pat, hcens->pattern->content))
  13             return hcens;
  14     return NULL;
  15 }
  16
  17 hcensor *hcensor_get_by_index(hcensor *hcens, int index)
  18 {
  19     if (index > 512) /* some sanity */
  20         return NULL;
  21
  22     while (index && hcens)
  23     {
  24         hcens = hcens->next;
  25         index--;
  26     }
  27
  28     return hcens;
  29 }
  30
  31 hcensor *hcensor_check(hcensor *hcens, const char *str)
  32 {
  33     for (;hcens;hcens = hcens->next)
  34         if (strregexp(str, hcens->pattern->content))
  35             return hcens;
  36     return NULL;
  37 }
  38
  39 hcensor *hcensor_add(hcensor **hcens, const char *pat, const char *rsn)
  40 {
  41     hcensor *tmp;
  42
  43     if (hcensor_get_by_pattern(*hcens, pat))
  44         return NULL;
  45
  46     tmp = malloc(sizeof(hcensor));
  47     tmp->next = *hcens;
  48
  49     tmp->pattern = getsstring(pat, strlen(pat));
  50     if (rsn)
  51         tmp->reason = getsstring(rsn, strlen(rsn));
  52     else
  53         tmp->reason = NULL;
  54
  55     *hcens = tmp;
  56
  57     return tmp;
  58 }
  59
  60 hcensor *hcensor_del(hcensor **hcens, hcensor *ptr)
  61 {
  62     for (;*hcens;hcens = &(*hcens)->next)
  63         if (*hcens == ptr)
  64         {
  65             hcensor *tmp = (*hcens)->next;
  66             freesstring((*hcens)->pattern);
  67             freesstring((*hcens)->reason);
  68             free (*hcens);
  69             *hcens = tmp;
  70             return NULL;
  71         }
  72     return ptr;
  73 }
  74
  75 void hcensor_del_all(hcensor **hcens)
  76 {
  77     while (*hcens)
  78         hcensor_del(hcens, *hcens);
  79 }
  80
  81 int hcensor_count(hcensor *hcens)
  82 {
  83     int count = 0;
  84     for (;hcens;hcens = hcens->next, count++);
  85     return count;
  86 }