mxml/mxml-private.c

   1 /*
   2  * "$Id$"
   3  *
   4  * Private functions for Mini-XML, a small XML-like file parsing library.
   5  *
   6  * Copyright 2003-2005 by Michael Sweet.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Library General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * Contents:
  19  *
  20  *   mxml_error()      - Display an error message.
  21  *   mxml_integer_cb() - Default callback for integer values.
  22  *   mxml_opaque_cb()  - Default callback for opaque values.
  23  *   mxml_real_cb()    - Default callback for real number values.
  24  */
  25
  26 /*
  27  * Include necessary headers...
  28  */
  29
  30 #include "config.h"
  31 #include "mxml.h"
  32
  33
  34 /*
  35  * Error callback function...
  36  */
  37
  38 void    (*mxml_error_cb)(const char *) = NULL;
  39
  40
  41 /*
  42  * 'mxml_error()' - Display an error message.
  43  */
  44
  45 void
  46 mxml_error(const char *format,          /* I - Printf-style format string */
  47            ...)                         /* I - Additional arguments as needed */
  48 {
  49   va_list       ap;                     /* Pointer to arguments */
  50   char          *s;                     /* Message string */
  51
  52
  53  /*
  54   * Range check input...
  55   */
  56
  57   if (!format)
  58     return;
  59
  60  /*
  61   * Format the error message string...
  62   */
  63
  64   va_start(ap, format);
  65
  66   s = mxml_strdupf(format, ap);
  67
  68   va_end(ap);
  69
  70  /*
  71   * And then display the error message...
  72   */
  73
  74   if (mxml_error_cb)
  75     (*mxml_error_cb)(s);
  76   else
  77     fprintf(stderr, "mxml: %s\n", s);
  78
  79  /*
  80   * Free the string...
  81   */
  82
  83   free(s);
  84 }
  85
  86
  87 /*
  88  * 'mxml_integer_cb()' - Default callback for integer values.
  89  */
  90
  91 mxml_type_t                             /* O - Node type */
  92 mxml_integer_cb(mxml_node_t *node)      /* I - Current node */
  93 {
  94   (void)node;
  95
  96   return (MXML_INTEGER);
  97 }
  98
  99
 100 /*
 101  * 'mxml_opaque_cb()' - Default callback for opaque values.
 102  */
 103
 104 mxml_type_t                             /* O - Node type */
 105 mxml_opaque_cb(mxml_node_t *node)       /* I - Current node */
 106 {
 107   (void)node;
 108
 109   return (MXML_OPAQUE);
 110 }
 111
 112
 113 /*
 114  * 'mxml_real_cb()' - Default callback for real number values.
 115  */
 116
 117 mxml_type_t                             /* O - Node type */
 118 mxml_real_cb(mxml_node_t *node)         /* I - Current node */
 119 {
 120   (void)node;
 121
 122   return (MXML_REAL);
 123 }
 124
 125
 126 /*
 127  * End of "$Id$".
 128  */