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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 20:01:36 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 20:01:36 +0000 |
commit | 62e4c68907d8d33709c2c1f92a161dff00b3d5f2 (patch) | |
tree | adbbaf3acf88ea08f6eeec4b75ee98ad3b07fbdc /src/shlex.resolver.hh | |
parent | Initial commit. (diff) | |
download | lnav-62e4c68907d8d33709c2c1f92a161dff00b3d5f2.tar.xz lnav-62e4c68907d8d33709c2c1f92a161dff00b3d5f2.zip |
Adding upstream version 0.11.2.upstream/0.11.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/shlex.resolver.hh')
-rw-r--r-- | src/shlex.resolver.hh | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/shlex.resolver.hh b/src/shlex.resolver.hh new file mode 100644 index 0000000..404d142 --- /dev/null +++ b/src/shlex.resolver.hh @@ -0,0 +1,94 @@ +/** + * Copyright (c) 2015, Timothy Stack + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of Timothy Stack nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * @file shlex.resolver.hh + */ + +#ifndef lnav_shlex_resolver_hh +#define lnav_shlex_resolver_hh + +#include <map> +#include <string> +#include <vector> + +#include "base/intern_string.hh" +#include "fmt/format.h" +#include "mapbox/variant.hpp" + +struct null_value_t {}; +using scoped_value_t = mapbox::util:: + variant<std::string, string_fragment, int64_t, double, null_value_t>; + +namespace fmt { +template<> +struct formatter<scoped_value_t> : formatter<std::string> { + template<typename FormatContext> + auto format(const scoped_value_t& sv, FormatContext& ctx) const + { + auto retval + = sv.match([](std::string str) { return str; }, + [](string_fragment sf) { return sf.to_string(); }, + [](null_value_t) { return std::string("<NULL>"); }, + [](int64_t value) { return fmt::to_string(value); }, + [](double value) { return fmt::to_string(value); }); + + return fmt::formatter<std::string>::format(retval, ctx); + } +}; +} // namespace fmt + +class scoped_resolver { +public: + scoped_resolver( + std::initializer_list<std::map<std::string, scoped_value_t>*> l) + { + this->sr_stack.insert(this->sr_stack.end(), l.begin(), l.end()); + } + + using const_iterator + = std::map<std::string, scoped_value_t>::const_iterator; + + const_iterator find(const std::string& str) const + { + const_iterator retval; + + for (const auto* scope : this->sr_stack) { + if ((retval = scope->find(str)) != scope->end()) { + return retval; + } + } + + return this->end(); + } + + const_iterator end() const { return this->sr_stack.back()->end(); } + + std::vector<const std::map<std::string, scoped_value_t>*> sr_stack; +}; + +#endif |