new CLI interface: rename --pattern to --value
because --relation and --attribute are patterns too
/**
* Relational pipes
* Copyright © 2021 František Kučera (Frantovo.cz, GlobalCode.info)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <vector>
#include <relpipe/common/type/typedefs.h>
#include <relpipe/cli/CLI.h>
#include <relpipe/cli/RelpipeCLIException.h>
#include "Configuration.h"
namespace relpipe {
namespace tr {
namespace grep {
class CLIParser {
private:
relpipe::common::type::StringX readNext(std::vector<relpipe::common::type::StringX> arguments, int& i) {
if (i < arguments.size()) return arguments[i++];
else throw relpipe::cli::RelpipeCLIException(L"Missing CLI argument" + (i > 0 ? (L" after " + arguments[i - 1]) : L""), relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);
}
/**
* TODO: use a common method
*/
bool parseBoolean(const relpipe::common::type::StringX& value) {
if (value == L"true") return true;
else if (value == L"false") return false;
else throw relpipe::cli::RelpipeCLIException(L"Unable to parse boolean value: " + value + L" (expecting true or false)", relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);
}
RelationConfiguration::ENTITY parseEntity(const relpipe::common::type::StringX& value) {
if (value == L"relation") return RelationConfiguration::ENTITY::RELATION;
else if (value == L"attribute") return RelationConfiguration::ENTITY::ATTRIBUTE;
else if (value == L"value") return RelationConfiguration::ENTITY::VALUE;
else throw relpipe::cli::RelpipeCLIException(L"Unable to parse entity value: " + value + L" (expecting „relation“, „attribute“ or „value“)", relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);
}
void addRelation(Configuration& c, RelationConfiguration& currentRelation) {
if (currentRelation.relation.size()) {
using E = RelationConfiguration::ENTITY;
currentRelation.relationPattern = currentRelation.caseSensitive[E::RELATION] ? std::wregex(currentRelation.relation) : std::wregex(currentRelation.relation, std::regex_constants::icase);
currentRelation.attributePattern = currentRelation.caseSensitive[E::ATTRIBUTE] ? std::wregex(currentRelation.attribute) : std::wregex(currentRelation.attribute, std::regex_constants::icase);
currentRelation.valuePattern = currentRelation.caseSensitive[E::VALUE] ? std::wregex(currentRelation.value) : std::wregex(currentRelation.value, std::regex_constants::icase);
c.relationConfigurations.push_back(currentRelation);
currentRelation = RelationConfiguration();
}
}
public:
static const relpipe::common::type::StringX OPTION_RELATION;
static const relpipe::common::type::StringX OPTION_ATTRIBUTE;
static const relpipe::common::type::StringX OPTION_VALUE;
static const relpipe::common::type::StringX OPTION_CASE_SENSITIVE;
static const relpipe::common::type::StringX OPTION_INVERT_MATCH;
Configuration parse(const std::vector<relpipe::common::type::StringX>& arguments) {
Configuration c;
RelationConfiguration currentRelation;
for (int i = 0; i < arguments.size();) {
relpipe::common::type::StringX option = readNext(arguments, i);
if (option == OPTION_RELATION) {
addRelation(c, currentRelation); // previous relation
currentRelation.relation = readNext(arguments, i);
} else if (option == OPTION_ATTRIBUTE) {
currentRelation.attribute = readNext(arguments, i);
} else if (option == OPTION_VALUE) {
currentRelation.value = readNext(arguments, i);
} else if (option == OPTION_CASE_SENSITIVE) {
RelationConfiguration::ENTITY entity = parseEntity(readNext(arguments, i));
currentRelation.caseSensitive[entity] = parseBoolean(readNext(arguments, i));
} else if (option == OPTION_INVERT_MATCH) {
RelationConfiguration::ENTITY entity = parseEntity(readNext(arguments, i));
currentRelation.invertMatch[entity] = parseBoolean(readNext(arguments, i));
} else throw relpipe::cli::RelpipeCLIException(L"Unsupported CLI option: " + option, relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);
}
addRelation(c, currentRelation); // last relation
return c;
}
virtual ~CLIParser() {
}
};
const relpipe::common::type::StringX CLIParser::OPTION_RELATION = L"--relation";
const relpipe::common::type::StringX CLIParser::OPTION_ATTRIBUTE = L"--attribute";
const relpipe::common::type::StringX CLIParser::OPTION_VALUE = L"--value";
const relpipe::common::type::StringX CLIParser::OPTION_CASE_SENSITIVE = L"--case-sensitive";
const relpipe::common::type::StringX CLIParser::OPTION_INVERT_MATCH = L"--invert-match";
}
}
}