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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef AXIOM_XPATH_INTERNALS_ITERATORS_H
#define AXIOM_XPATH_INTERNALS_ITERATORS_H
#include <axiom_xpath.h>
#ifdef __cplusplus
extern "C"
{
#endif
/**
* @defgroup axiom_xpath_iterators iterators
* @ingroup axiom_xpath
* @{
*/
#ifdef AXIOM_XPATH_DEBUG
#define AXIOM_XPATH_ITERATOR_INITIALIZE { \
if(!context->node) { \
printf("Context node NULL; cannot evaluate self or descendent axis.\n"); \
return AXIOM_XPATH_EVALUATION_ERROR; } \
node_test_op = AXIOM_XPATH_OPR_GET(op_node_test); \
if(!node_test_op) { \
printf("Node test not present.\n"); \
return AXIOM_XPATH_EVALUATION_ERROR; } \
context_node = context->node; \
}
#else
#define AXIOM_XPATH_ITERATOR_INITIALIZE { \
if(!context->node) { \
return AXIOM_XPATH_EVALUATION_ERROR; } \
node_test_op = AXIOM_XPATH_OPR_GET(op_node_test); \
if(!node_test_op) { \
return AXIOM_XPATH_EVALUATION_ERROR; } \
context_node = context->node; \
}
#endif
/**
* Iterate through children
*
* @param context XPath context
* @param op_node_test Reference to the node test operation
* in the parsed expression
* @param op_next Reference to the next step in the location path,
* in the parsed expression
* @param op_predicate Reference to the first predicate in the
* parsed expression
* @return Number of nodes added to the stack
*/
int axiom_xpath_child_iterator(
axiom_xpath_context_t *context,
int op_node_test,
int op_next,
int op_predicate);
/**
* Iterate through descendents
*
* @param context XPath context
* @param op_node_test Reference to the node test operation
* in the parsed expression
* @param op_next Reference to the next step in the location path,
* in the parsed expression
* @param op_predicate Reference to the first predicate in the
* parsed expression
* @return Number of nodes added to the stack
*/
int axiom_xpath_descendant_iterator(
axiom_xpath_context_t *context,
int op_node_test,
int op_next,
int op_predicate);
/**
* Iterate through parent node. (Only one node)
*
* @param context XPath context
* @param op_node_test Reference to the node test operation
* in the parsed expression
* @param op_next Reference to the next step in the location path,
* in the parsed expression
* @param op_predicate Reference to the first predicate in the
* parsed expression
* @return Number of nodes added to the stack
*/
int axiom_xpath_parent_iterator(
axiom_xpath_context_t *context,
int op_node_test,
int op_next,
int op_predicate);
/**
* Iterate through ancestors
*
* @param context XPath context
* @param op_node_test Reference to the node test operation
* in the parsed expression
* @param op_next Reference to the next step in the location path,
* in the parsed expression
* @param op_predicate Reference to the first predicate in the
* parsed expression
* @return Number of nodes added to the stack
*/
int axiom_xpath_ancestor_iterator(
axiom_xpath_context_t *context,
int op_node_test,
int op_next,
int op_predicate);
/**
* Iterate through siblings following the context node
*
* @param context XPath context
* @param op_node_test Reference to the node test operation
* in the parsed expression
* @param op_next Reference to the next step in the location path,
* in the parsed expression
* @param op_predicate Reference to the first predicate in the
* parsed expression
* @return Number of nodes added to the stack
*/
int axiom_xpath_following_sibling_iterator(
axiom_xpath_context_t *context,
int op_node_test,
int op_next,
int op_predicate);
/**
* Iterate through sibling preceding the context node
*
* @param context XPath context
* @param op_node_test Reference to the node test operation
* in the parsed expression
* @param op_next Reference to the next step in the location path,
* in the parsed expression
* @param op_predicate Reference to the first predicate in the
* parsed expression
* @return Number of nodes added to the stack
*/
int axiom_xpath_preceding_sibling_iterator(
axiom_xpath_context_t *context,
int op_node_test,
int op_next,
int op_predicate);
/**
* Iterate through all nodes following the context node
*
* @param context XPath context
* @param op_node_test Reference to the node test operation
* in the parsed expression
* @param op_next Reference to the next step in the location path,
* in the parsed expression
* @param op_predicate Reference to the first predicate in the
* parsed expression
* @return Number of nodes added to the stack
*/
int axiom_xpath_following_iterator(
axiom_xpath_context_t *context,
int op_node_test,
int op_next,
int op_predicate);
/**
* Iterate through all nodes preceding the context node
*
* @param context XPath context
* @param op_node_test Reference to the node test operation
* in the parsed expression
* @param op_next Reference to the next step in the location path,
* in the parsed expression
* @param op_predicate Reference to the first predicate in the
* parsed expression
* @return Number of nodes added to the stack
*/
int axiom_xpath_preceding_iterator(
axiom_xpath_context_t *context,
int op_node_test,
int op_next,
int op_predicate);
/**
* Iterate through attributes
*
* @param context XPath context
* @param op_node_test Reference to the node test operation
* in the parsed expression
* @param op_next Reference to the next step in the location path,
* in the parsed expression
* @param op_predicate Reference to the first predicate in the
* parsed expression
* @return Number of nodes added to the stack
*/
int axiom_xpath_attribute_iterator(
axiom_xpath_context_t *context,
int op_node_test,
int op_next,
int op_predicate);
/**
* Iterate through namespaces defined in the context node
*
* @param context XPath context
* @param op_node_test Reference to the node test operation
* in the parsed expression
* @param op_next Reference to the next step in the location path,
* in the parsed expression
* @param op_predicate Reference to the first predicate in the
* parsed expression
* @return Number of nodes added to the stack
*/
int axiom_xpath_namespace_iterator(
axiom_xpath_context_t *context,
int op_node_test,
int op_next,
int op_predicate);
/**
* Iterate through self node (Only one node)
*
* @param context XPath context
* @param op_node_test Reference to the node test operation
* in the parsed expression
* @param op_next Reference to the next step in the location path,
* in the parsed expression
* @param op_predicate Reference to the first predicate in the
* parsed expression
* @return Number of nodes added to the stack
*/
int axiom_xpath_self_iterator(
axiom_xpath_context_t *context,
int op_node_test,
int op_next,
int op_predicate);
/**
* Iterate through descendents and context node
*
* @param context XPath context
* @param op_node_test Reference to the node test operation
* in the parsed expression
* @param op_next Reference to the next step in the location path,
* in the parsed expression
* @param op_predicate Reference to the first predicate in the
* parsed expression
* @return Number of nodes added to the stack
*/
int axiom_xpath_descendant_self_iterator(
axiom_xpath_context_t *context,
int op_node_test,
int op_next,
int op_predicate);
/**
* Iterate through ancestors and context node
*
* @param context XPath context
* @param op_node_test Reference to the node test operation
* in the parsed expression
* @param op_next Reference to the next step in the location path,
* in the parsed expression
* @param op_predicate Reference to the first predicate in the
* parsed expression
* @return Number of nodes added to the stack
*/
int axiom_xpath_ancestor_self_iterator(
axiom_xpath_context_t *context,
int op_node_test,
int op_next,
int op_predicate);
/** @} */
#ifdef __cplusplus
}
#endif
#endif
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