140 lines
3.7 KiB
C++
140 lines
3.7 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 util
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*/
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/**
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* @file mask.h
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* @author John Wiegley
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*
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* @ingroup util
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*
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* @brief Regular expression masking.
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*/
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#ifndef _MASK_H
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#define _MASK_H
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#include "utils.h"
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#if HAVE_BOOST_REGEX_UNICODE
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#include "unistring.h"
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#endif
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namespace ledger {
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class mask_t
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{
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public:
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#if HAVE_BOOST_REGEX_UNICODE
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boost::u32regex expr;
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#else
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boost::regex expr;
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#endif
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explicit mask_t(const string& pattern);
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mask_t() : expr() {
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TRACE_CTOR(mask_t, "");
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}
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mask_t(const mask_t& m) : expr(m.expr) {
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TRACE_CTOR(mask_t, "copy");
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}
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~mask_t() throw() {
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TRACE_DTOR(mask_t);
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}
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mask_t& operator=(const string& other);
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mask_t& assign_glob(const string& other);
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bool operator<(const mask_t& other) const {
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return expr < other.expr;
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}
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bool operator==(const mask_t& other) const {
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return expr == other.expr;
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}
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bool match(const string& text) const {
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#if HAVE_BOOST_REGEX_UNICODE
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DEBUG("mask.match",
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"Matching: \"" << text << "\" =~ /" << str() << "/ = "
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<< (boost::u32regex_search(text, expr) ? "true" : "false"));
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return boost::u32regex_search(text, expr);
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#else
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DEBUG("mask.match",
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"Matching: \"" << text << "\" =~ /" << str() << "/ = "
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<< (boost::regex_search(text, expr) ? "true" : "false"));
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return boost::regex_search(text, expr);
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#endif
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}
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bool empty() const {
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return expr.empty();
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}
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string str() const {
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if (! empty()) {
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#if HAVE_BOOST_REGEX_UNICODE
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assert(sizeof(boost::uint32_t) == sizeof(UChar32));
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unistring ustr;
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std::basic_string<UChar32> expr_str = expr.str();
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std::copy(expr_str.begin(), expr_str.end(),
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std::back_inserter(ustr.utf32chars));
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return ustr.extract();
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#else
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return expr.str();
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#endif
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} else {
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return empty_string;
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}
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}
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bool valid() const {
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if (expr.status() != 0) {
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DEBUG("ledger.validate", "mask_t: expr.status() != 0");
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return false;
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}
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return true;
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}
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};
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inline std::ostream& operator<<(std::ostream& out, const mask_t& mask) {
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out << mask.str();
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return out;
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}
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inline void put_mask(property_tree::ptree& pt, const mask_t& mask) {
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pt.put_value(mask.str());
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}
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} // namespace ledger
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#endif // _MASK_H
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