97 lines
3.2 KiB
C++
97 lines
3.2 KiB
C++
/*
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* Copyright (c) 2003-2015, John Wiegley. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of New Artisans LLC nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @addtogroup expr
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*/
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/**
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* @file predicate.h
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* @author John Wiegley
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*
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* @ingroup expr
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*/
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#ifndef _PREDICATE_H
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#define _PREDICATE_H
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#include "expr.h"
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#include "commodity.h"
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#include "annotate.h"
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namespace ledger {
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class predicate_t : public expr_t
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{
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public:
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keep_details_t what_to_keep;
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predicate_t(const keep_details_t& _what_to_keep = keep_details_t())
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: what_to_keep(_what_to_keep) {
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TRACE_CTOR(predicate_t, "");
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}
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predicate_t(const predicate_t& other)
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: expr_t(other), what_to_keep(other.what_to_keep) {
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TRACE_CTOR(predicate_t, "copy");
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}
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predicate_t(ptr_op_t _ptr,
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const keep_details_t& _what_to_keep,
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scope_t * _context = NULL)
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: expr_t(_ptr, _context), what_to_keep(_what_to_keep) {
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TRACE_CTOR(predicate_t, "ptr_op_t, keep_details_t, scope_t *");
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}
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predicate_t(const string& str,
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const keep_details_t& _what_to_keep,
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const parse_flags_t& flags = PARSE_DEFAULT)
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: expr_t(str, flags), what_to_keep(_what_to_keep) {
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TRACE_CTOR(predicate_t, "string, keep_details_t, parse_flags_t");
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}
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predicate_t(std::istream& in,
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const keep_details_t& _what_to_keep,
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const parse_flags_t& flags = PARSE_DEFAULT)
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: expr_t(in, flags), what_to_keep(_what_to_keep) {
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TRACE_CTOR(predicate_t, "std::istream&, keep_details_t, parse_flags_t");
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}
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virtual ~predicate_t() {
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TRACE_DTOR(predicate_t);
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}
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virtual value_t real_calc(scope_t& scope) {
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return (*this ?
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expr_t::real_calc(scope)
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.strip_annotations(what_to_keep)
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.to_boolean() :
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true);
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}
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};
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} // namespace ledger
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#endif // _PREDICATE_H
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