usr.bin/evtranalyze/xml.h

   1 /*
   2  * Copyright (c) 2009, 2010 Aggelos Economopoulos.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  *
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in
  12  *    the documentation and/or other materials provided with the
  13  *    distribution.
  14  * 3. Neither the name of The DragonFly Project nor the names of its
  15  *    contributors may be used to endorse or promote products derived
  16  *    from this software without specific, prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  21  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  22  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  23  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  24  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  26  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  27  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  28  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #ifndef _EVTRANALYZE_XML_H_
  33 #define _EVTRANALYZE_XML_H_
  34
  35 #include <stdio.h>
  36 #include <sys/queue.h>
  37
  38
  39 typedef struct xml_attribute {
  40         const char    *name;
  41         const char    *value;
  42         STAILQ_ENTRY(xml_attribute) next;
  43 } *xml_attribute_t;
  44
  45 typedef struct xml_element {
  46         const char    *name;
  47         const char    *value;
  48         STAILQ_HEAD(, xml_attribute) attributes;
  49         STAILQ_ENTRY(xml_element) link;
  50 } *xml_element_t;
  51
  52 typedef struct xml_document {
  53         FILE    *file;
  54         STAILQ_HEAD(, xml_element) open_elems;
  55         int nr_open;
  56         const char *errmsg;
  57 } *xml_document_t;
  58
  59 static inline
  60 void
  61 xml_elem_init(xml_element_t el, const char *name)
  62 {
  63         el->name = name;
  64         el->value = NULL;
  65         STAILQ_INIT(&el->attributes);
  66 }
  67
  68 static inline
  69 void
  70 xml_elem_set_value(xml_element_t el, const char *value)
  71 {
  72         el->value = value;
  73 }
  74
  75 static inline
  76 void
  77 xml_attribute_init(xml_attribute_t at, const char *name, const char *value)
  78 {
  79         at->name = name;
  80         at->value = value;
  81 }
  82
  83 static inline
  84 void
  85 xml_attribute_set_value(xml_attribute_t at, const char *value)
  86 {
  87         at->value = value;
  88 }
  89
  90 static inline
  91 void
  92 xml_elem_set_attribute(xml_element_t el, xml_attribute_t at)
  93 {
  94         STAILQ_INSERT_TAIL(&el->attributes, at, next);
  95 }
  96
  97
  98 xml_document_t xml_document_create(const char *);
  99 int xml_document_close(xml_document_t);
 100 int xml_elem_closed(xml_document_t, xml_element_t);
 101 int xml_elem_begin(xml_document_t, xml_element_t);
 102 int xml_elem_close(xml_document_t, xml_element_t);
 103
 104 #endif /* !_EVTRANALYZE_XML_H_ */