client/tabcomplete.c

   1 /*
   2  * Copyright (c) 2002, Index Data
   3  * See the file LICENSE for details.
   4  *
   5  * $Id: tabcomplete.c,v 1.4 2002-02-24 12:24:40 adam 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 /* *****************************************************************************
  16  *
  17  * generic compleater
  18  *
  19  * *****************************************************************************/
  20
  21 char* complete_from_list(char* completions[], const char *text, int state)
  22 {
  23         static int idx;
  24         if(state==0) {
  25                 idx = 0;
  26         }
  27         for(; completions[idx]; ++ idx) {
  28                 if(!strncmp(completions[idx],text,strlen(text))) {
  29                         ++idx; /* skip this entry on the next run */
  30                         return (char*)strdup(completions[idx-1]);
  31                 };
  32         };
  33         return NULL;
  34 }
  35
  36
  37 /* *****************************************************************************
  38  *
  39  * code for getting a list of valid strings from the oid subsystem
  40  *
  41  * *****************************************************************************/
  42
  43
  44 typedef struct {
  45         oid_class oclass;
  46         char** values;
  47         size_t index;
  48         size_t max;
  49 } oid_callback_t;
  50
  51 /*!
  52   This is the call back function given to oid_trav... it updates the list of pointers into the oid
  53   owned data
  54 */
  55
  56 void oid_loader(struct oident* oid, void* data_)
  57 {
  58         oid_callback_t* data=(oid_callback_t*) data_;
  59
  60
  61         if((oid->oclass == CLASS_GENERAL) || (oid->oclass == data->oclass)) {
  62                 if(data->index==data->max) {
  63                         data->values=(char**)realloc(data->values,((data->max+1)*2)*sizeof(char*));
  64                         data->max=(data->max+1)*2 - 1;
  65                 };
  66                 data->values[data->index]=oid->desc;
  67                 ++data->index;
  68         }
  69 }
  70
  71 char** build_list_for_oclass(oid_class oclass) {
  72         oid_callback_t data;
  73         data.values = calloc(10,sizeof(char*));
  74         data.index = 0;
  75         data.max = 9;
  76         data.oclass = oclass;
  77
  78         oid_trav(oid_loader, &data);
  79
  80         data.values[data.index]=0;
  81         return data.values;
  82 }
  83
  84 /* *****************************************************************************
  85  *
  86  * the compleater functions
  87  *
  88  * *****************************************************************************/
  89
  90 char* complete_querytype(const char *text, int state)
  91 {
  92     char* querytypes[] = {"ccl2rpn","prefix","cclrpn","ccl",0};
  93     return complete_from_list(querytypes,text,state);
  94 }
  95
  96
  97 char* complete_format(const char* text, int state)
  98 {
  99         char** list=build_list_for_oclass(CLASS_RECSYN);
 100         char* res=complete_from_list(list,text,state);
 101
 102         free(list);
 103         return res;
 104 }
 105
 106 char* complete_schema(const char* text, int state)
 107 {
 108         char** list=build_list_for_oclass(CLASS_SCHEMA);
 109         char* res=complete_from_list(list,text,state);
 110
 111         free(list);
 112         return res;
 113 }
 114
 115
 116 char* complete_attributeset(const char* text, int state)
 117 {
 118         char** list=build_list_for_oclass(CLASS_ATTSET);
 119         char* res=complete_from_list(list,text,state);
 120
 121         free(list);
 122         return res;
 123 }
 124
 125 /*
 126  * Local variables:
 127  * tab-width: 4
 128  * c-basic-offset: 4
 129  * End:
 130  */