client/tabcomplete.c

   1 /*
   2  * Copyright (c) 2002, Index Data
   3  * See the file LICENSE for details.
   4  *
   5  * $Id: tabcomplete.c,v 1.5 2002-06-17 14:57:34 ja7 Exp $
   6  */
   7
   8 #include <string.h>
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11
  12 #include <yaz/oid.h>
  13 #include "tabcomplete.h"
  14
  15 extern char** curret_global_list;
  16
  17 /* *****************************************************************************
  18  *
  19  * generic compleater
  20  *
  21  * *****************************************************************************/
  22
  23 char* complete_from_list(char* completions[], const char *text, int state)
  24 {
  25         static int idx;
  26
  27         if(!completions) return NULL;
  28         if(state==0) {
  29                 idx = 0;
  30         }
  31         for(; completions[idx]; ++ idx) {
  32                 if(!strncasecmp(completions[idx],text,strlen(text))) {
  33                         ++idx; /* skip this entry on the next run */
  34                         return (char*)strdup(completions[idx-1]);
  35                 };
  36         };
  37         return NULL;
  38 }
  39
  40
  41 /* *****************************************************************************
  42  *
  43  * code for getting a list of valid strings from the oid subsystem
  44  *
  45  * *****************************************************************************/
  46
  47
  48 typedef struct {
  49         oid_class oclass;
  50         char** values;
  51         size_t index;
  52         size_t max;
  53 } oid_callback_t;
  54
  55 /*!
  56   This is the call back function given to oid_trav... it updates the list of pointers into the oid
  57   owned data
  58 */
  59
  60 void oid_loader(struct oident* oid, void* data_)
  61 {
  62         oid_callback_t* data=(oid_callback_t*) data_;
  63
  64
  65         if((oid->oclass == CLASS_GENERAL) || (oid->oclass == data->oclass)) {
  66                 if(data->index==data->max) {
  67                         data->values=(char**)realloc(data->values,((data->max+1)*2)*sizeof(char*));
  68                         data->max=(data->max+1)*2 - 1;
  69                 };
  70                 data->values[data->index]=oid->desc;
  71                 ++data->index;
  72         }
  73 }
  74
  75 char** build_list_for_oclass(oid_class oclass) {
  76         oid_callback_t data;
  77         data.values = calloc(10,sizeof(char*));
  78         data.index = 0;
  79         data.max = 9;
  80         data.oclass = oclass;
  81
  82         oid_trav(oid_loader, &data);
  83
  84         data.values[data.index]=0;
  85         return data.values;
  86 }
  87
  88 /* *****************************************************************************
  89  *
  90  * the compleater functions
  91  *
  92  * *****************************************************************************/
  93
  94 char* complete_querytype(const char *text, int state)
  95 {
  96     char* querytypes[] = {"ccl2rpn","prefix","cclrpn","ccl",0};
  97     return complete_from_list(querytypes,text,state);
  98 }
  99
 100
 101 char* complete_format(const char* text, int state)
 102 {
 103         char** list=build_list_for_oclass(CLASS_RECSYN);
 104         char* res=complete_from_list(list,text,state);
 105
 106         free(list);
 107         return res;
 108 }
 109
 110 char* complete_schema(const char* text, int state)
 111 {
 112         char** list=build_list_for_oclass(CLASS_SCHEMA);
 113         char* res=complete_from_list(list,text,state);
 114
 115         free(list);
 116         return res;
 117 }
 118
 119
 120 char* complete_attributeset(const char* text, int state)
 121 {
 122         char** list=build_list_for_oclass(CLASS_ATTSET);
 123         char* res=complete_from_list(list,text,state);
 124
 125         free(list);
 126         return res;
 127 }
 128
 129
 130 char* default_completer(const char* text, int state)
 131 {
 132         return complete_from_list(curret_global_list,text,state);
 133 }
 134
 135
 136
 137 /*
 138  * Local variables:
 139  * tab-width: 4
 140  * c-basic-offset: 4
 141  * End:
 142  */