helpmod2/htopic.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4
   5 #include "helpmod.h"
   6 #include "htopic.h"
   7
   8 htopic *htopic_add(htopic** htop, const char* entry, int pos)
   9 {
  10     htopic *tmp;
  11
  12     for (;*htop && pos;htop = &(*htop)->next, pos--);
  13
  14     tmp = *htop;
  15
  16     *htop = malloc(sizeof(htopic));
  17     (*htop)->entry = getsstring(entry, strlen(entry));
  18     (*htop)->next = tmp;
  19
  20     return *htop;
  21 }
  22
  23 htopic *htopic_del(htopic** htop, htopic* target)
  24 {
  25     htopic *tmp;
  26     for (;*htop;htop = &(*htop)->next)
  27         if (*htop == target)
  28             break;
  29     if (!*htop)
  30         return target;
  31     tmp = (*htop)->next;
  32     freesstring((*htop)->entry);
  33     free(*htop);
  34     *htop = tmp;
  35
  36
  37     return NULL;
  38 }
  39
  40 void htopic_del_all(htopic** htop)
  41 {
  42     while (*htop)
  43         htopic_del(htop, *htop);
  44 }
  45
  46 htopic *htopic_get(htopic *htop, int pos)
  47 {
  48     for (;htop && pos;htop = htop->next,pos--);
  49     return htop;
  50 }
  51
  52 const char *htopic_construct(htopic *htop)
  53 {
  54     static char buffer[512] = "";
  55
  56     *buffer = '\0';
  57
  58     for (;htop;htop = htop->next)
  59     {
  60         strcat(buffer, htop->entry->content);
  61         if (htop->next)
  62             strcat(buffer, " | ");
  63     }
  64     return buffer;
  65 }
  66
  67 int htopic_count(htopic *htop)
  68 {
  69     int count = 0;
  70     for (;htop;htop = htop->next)
  71         count++;
  72     return count;
  73 }
  74
  75 int htopic_len(htopic *htop)
  76 {
  77     int len = 0;
  78
  79     if (htopic_count(htop))
  80         len+=(htopic_count(htop) - 1) * 3;
  81     for (;htop;htop = htop->next)
  82         len+=strlen(htop->entry->content);
  83
  84     return len;
  85 }
  86