helpmod2/hterm.c

   1 #include <string.h>
   2 #include <assert.h>
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5
   6 #include "hterm.h"
   7
   8 #include "hgen.h"
   9
  10 hterm *hterm_add(hterm** ptr, const char *name, const char *desc)
  11 {
  12     hterm *htrm;
  13
  14     if (ptr == NULL)
  15         ptr = &hterms;
  16
  17     if (name == NULL || desc == NULL || hterm_get(*ptr, name))
  18         return NULL;
  19
  20     for (;*ptr && strcmp(name, (*ptr)->name->content) > 0;ptr = &(*ptr)->next);
  21
  22     htrm = (hterm*)malloc(sizeof(hterm));
  23     htrm->name = getsstring(name, strlen(name));
  24     htrm->description = getsstring(desc, strlen(desc));
  25     htrm->usage = 0;
  26
  27     htrm->next = *ptr;
  28     *ptr = htrm;
  29
  30     return htrm;
  31 }
  32
  33 hterm *hterm_get(hterm *source, const char *str)
  34 {
  35     hterm *ptr = source;
  36
  37     for (;ptr;ptr = ptr->next)
  38         if (!ci_strcmp(ptr->name->content, str))
  39             return ptr;
  40     return NULL;
  41 }
  42
  43 hterm *hterm_find(hterm *source, const char *str)
  44 {
  45     hterm *ptr;
  46     char buffer[512];
  47
  48     sprintf(buffer, "*%s*", str);
  49
  50     for (ptr = source;ptr;ptr = ptr->next)
  51         if (strregexp(ptr->name->content, buffer))
  52             return ptr;
  53     for (ptr = source;ptr;ptr = ptr->next)
  54         if (strregexp(ptr->description->content, buffer))
  55             return ptr;
  56     return NULL;
  57 }
  58
  59 hterm *hterm_get_and_find(hterm *source, const char *str)
  60 {
  61     /* search order: get source, get hterms, find source, find hterms */
  62     hterm *ptr;
  63     ptr = hterm_get(source, str);
  64     if (ptr != NULL)
  65     {
  66         ptr->usage++;
  67         return ptr;
  68     }
  69     ptr = hterm_get(hterms, str);
  70     if (ptr != NULL)
  71     {
  72         ptr->usage++;
  73         return ptr;
  74     }
  75     ptr = hterm_find(source, str);
  76     if (ptr != NULL)
  77     {
  78         ptr->usage++;
  79         return ptr;
  80     }
  81     ptr = hterm_find(hterms, str);
  82     if (ptr != NULL)
  83     {
  84         ptr->usage++;
  85         return ptr;
  86     }
  87     return NULL;
  88 }
  89
  90 hterm *hterm_del(hterm** start, hterm *htrm)
  91 {
  92     hterm** ptr = start;
  93
  94     for (;*ptr;ptr = &(*ptr)->next)
  95         if (*ptr == htrm)
  96         {
  97             hterm *tmp = (*ptr)->next;
  98             freesstring((*ptr)->name);
  99             freesstring((*ptr)->description);
 100             free(*ptr);
 101             *ptr = tmp;
 102
 103             return NULL;
 104         }
 105
 106     return htrm;
 107 }
 108
 109 void hterm_del_all(hterm **source)
 110 {
 111     if (source == NULL)
 112         source = &hterms;
 113
 114     while (*source)
 115         hterm_del(source, *source);
 116 }
 117
 118 int hterm_count(hterm* ptr)
 119 {
 120     int i = 0;
 121     for (;ptr;ptr = ptr->next)
 122         i++;
 123     return i;
 124 }