util/cql2pqf.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 <stdlib.h>
   7 #include <stdio.h>
   8
   9 #include <yaz/rpn2cql.h>
  10 #include <yaz/pquery.h>
  11 #include <yaz/options.h>
  12
  13 static void usage(void)
  14 {
  15     fprintf(stderr, "usage\n cql2pqf [-n <n>] [-r] <properties> [<query>]\n");
  16     exit(1);
  17 }
  18
  19 int main(int argc, char **argv)
  20 {
  21     cql_transform_t ct;
  22     int i, iterations = 1;
  23     char *query = 0;
  24     char *fname = 0;
  25     int reverse = 0;
  26
  27     int ret;
  28     char *arg;
  29
  30     while ((ret = options("n:r", argv, argc, &arg)) != -2)
  31     {
  32         switch (ret)
  33         {
  34         case 0:
  35             if (!fname)
  36                 fname = arg;
  37             else
  38                 query = arg;
  39             break;
  40         case 'r':
  41             reverse = 1;
  42         case 'n':
  43             iterations = atoi(arg);
  44             break;
  45         default:
  46             usage();
  47         }
  48     }
  49     if (!fname)
  50         usage();
  51     ct = cql_transform_open_fname(fname);
  52     if (!ct)
  53     {
  54         fprintf(stderr, "failed to read properties %s\n", fname);
  55         exit(1);
  56     }
  57
  58     if (reverse)
  59     {
  60         if (!query)
  61             usage();
  62         else
  63         {
  64             ODR odr = odr_createmem(ODR_ENCODE);
  65             YAZ_PQF_Parser pp = yaz_pqf_create();
  66             Z_RPNQuery *rpn = yaz_pqf_parse(pp, odr, query);
  67             if (!rpn)
  68             {
  69                 fprintf(stderr, "PQF syntax error\n");
  70             }
  71             else
  72             {
  73                 int ret = cql_transform_rpn2cql_stream(ct, cql_fputs,
  74                                                        stdout, rpn);
  75
  76                 if (ret)
  77                 {
  78                     const char *addinfo;
  79                     int r = cql_transform_error(ct, &addinfo);
  80                     printf("Transform error %d %s\n", r, addinfo ? addinfo : "");
  81                 }
  82                 else
  83                     printf("\n");
  84             }
  85             yaz_pqf_destroy(pp);
  86             odr_destroy(odr);
  87         }
  88     }
  89     else
  90     {
  91         CQL_parser cp = cql_parser_create();
  92         int r = 0;
  93
  94         if (query)
  95         {
  96             for (i = 0; i<iterations; i++)
  97                 r = cql_parser_string(cp, query);
  98         }
  99         else
 100             r = cql_parser_stdio(cp, stdin);
 101
 102         if (r)
 103             fprintf(stderr, "Syntax error\n");
 104         else
 105         {
 106             r = cql_transform_FILE(ct, cql_parser_result(cp), stdout);
 107             printf("\n");
 108             if (r)
 109             {
 110                 const char *addinfo;
 111                 r = cql_transform_error(ct, &addinfo);
 112                 printf("Transform error %d %s\n", r, addinfo ? addinfo : "");
 113             }
 114             else
 115             {
 116                 FILE *null = fopen("/dev/null", "w");
 117                 for (i = 1; i<iterations; i++)
 118                     cql_transform_FILE(ct, cql_parser_result(cp), null);
 119                 fclose(null);
 120             }
 121         }
 122         cql_parser_destroy(cp);
 123     }
 124     cql_transform_close(ct);
 125     return 0;
 126 }
 127 /*
 128  * Local variables:
 129  * c-basic-offset: 4
 130  * indent-tabs-mode: nil
 131  * End:
 132  * vim: shiftwidth=4 tabstop=8 expandtab
 133  */
 134