client/tabcomplete.c

   1 /* This file is part of the YAZ toolkit.
   2  * Copyright (C) 1995-2008 Index Data
   3  * See the file LICENSE for details.
   4  */
   5
   6 #include <string.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9
  10 #include "tabcomplete.h"
  11 #include <yaz/oid_db.h>
  12
  13 /* ***************************************************************************
  14  *
  15  * generic completer
  16  *
  17  * ***************************************************************************/
  18
  19 char *complete_from_list(const char** completions,
  20                          const char *text, int state)
  21 {
  22 #if HAVE_READLINE_READLINE_H
  23     static int idx;
  24
  25     if (!completions)
  26         return NULL;
  27     if (state==0)
  28         idx = 0;
  29     for(; completions[idx]; ++ idx) {
  30         if(!
  31 #ifdef WIN32
  32            _strnicmp
  33 #else
  34            strncasecmp
  35 #endif
  36            (completions[idx],text,strlen(text))) {
  37             ++idx; /* skip this entry on the next run */
  38             return (char*)strdup(completions[idx-1]);
  39         };
  40     };
  41 #endif
  42     return NULL;
  43 }
  44
  45
  46 /* ***************************************************************************
  47  *
  48  * code for getting a list of valid strings from the oid subsystem
  49  *
  50  * ***************************************************************************/
  51
  52
  53 typedef struct {
  54     int oclass;
  55     const char** values;
  56     size_t index;
  57     size_t max;
  58 } oid_callback_t;
  59
  60 /*!
  61   This is the call back function given to oid_trav... it updates the list
  62   of pointers into the oid owned data
  63 */
  64
  65 void oid_loader(const Odr_oid *oid,
  66                 oid_class oclass, const char *name, void* data_)
  67 {
  68     oid_callback_t* data=(oid_callback_t*) data_;
  69
  70     if ((oclass == CLASS_GENERAL) || (oclass == data->oclass))
  71     {
  72         if (data->index==data->max)
  73         {
  74             data->values=(const char**)
  75                 realloc(data->values,((data->max+1)*2)*sizeof(char*));
  76             data->max=(data->max+1)*2 - 1;
  77         }
  78         data->values[data->index] = name;
  79         ++data->index;
  80     }
  81 }
  82
  83 const char** build_list_for_oclass(oid_class oclass)
  84 {
  85     oid_callback_t data;
  86     data.values = (const char **) calloc(10,sizeof(char*));
  87     data.index = 0;
  88     data.max = 9;
  89     data.oclass = oclass;
  90
  91     yaz_oid_trav(yaz_oid_std(), oid_loader, &data);
  92
  93     data.values[data.index]=0;
  94     return data.values;
  95 }
  96
  97 /* ***************************************************************************
  98  *
  99  * the completer functions
 100  *
 101  * ***************************************************************************/
 102
 103 char* complete_querytype(const char *text, int state)
 104 {
 105     static const char* querytypes[] = {"ccl2rpn","prefix","cclrpn","ccl","cql", 0};
 106     return complete_from_list(querytypes,text,state);
 107 }
 108
 109 char* complete_auto_reconnect(const char *text, int state)
 110 {
 111     static const char* querytypes[] = {"on","off",0};
 112     return complete_from_list(querytypes,text,state);
 113 }
 114
 115
 116 char* complete_format(const char* text, int state)
 117 {
 118     const char** list = build_list_for_oclass(CLASS_RECSYN);
 119     char* res=complete_from_list(list,text,state);
 120
 121     free(list);
 122     return res;
 123 }
 124
 125 char* complete_schema(const char* text, int state)
 126 {
 127     const char** list = build_list_for_oclass(CLASS_SCHEMA);
 128     char* res = complete_from_list(list,text,state);
 129
 130     free(list);
 131     return res;
 132 }
 133
 134
 135 char* complete_attributeset(const char* text, int state)
 136 {
 137     const char** list = build_list_for_oclass(CLASS_ATTSET);
 138     char* res = complete_from_list(list,text,state);
 139
 140     free(list);
 141     return res;
 142 }
 143
 144
 145 /*
 146  * Local variables:
 147  * c-basic-offset: 4
 148  * indent-tabs-mode: nil
 149  * End:
 150  * vim: shiftwidth=4 tabstop=8 expandtab
 151  */
 152