/**
* Relational pipes
* Copyright © 2019 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/writer/typedefs.h>
#include <relpipe/cli/CLI.h>
#include <relpipe/cli/RelpipeCLIException.h>
#include "Configuration.h"
namespace relpipe {
namespace tr {
namespace awk {
/**
* This tr-awk CLI options are inspired by tr-guile options.
* These configurations are independent and might diverge, but when possible, they should share same option names and same logic for common parts.
*/
class CLIParser {
private:
// FIXME: move common methods/classes to relpipe-lib-cli or relpipe-lib-helper
string_t readNext(std::vector<string_t> 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);
}
void addRelation(Configuration& c, RelationConfiguration& currentRelation) {
if (currentRelation.relation.size()) {
c.relationConfigurations.push_back(currentRelation);
currentRelation = RelationConfiguration();
}
}
relpipe::writer::TypeId parseTypeId(const string_t& value) {
using t = relpipe::writer::TypeId;
if (value == L"string") return t::STRING;
else if (value == L"integer") return t::INTEGER;
else if (value == L"boolean") return t::BOOLEAN;
else throw relpipe::cli::RelpipeCLIException(L"Unable to parse TypeId: " + value, relpipe::cli::CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);
}
public:
static const string_t OPTION_RELATION;
static const string_t OPTION_OUTPUT_ATTRIBUTE;
static const string_t OPTION_INPUT_ATTRIBUTES_APPEND;
static const string_t OPTION_INPUT_ATTRIBUTES_PREPEND;
static const string_t OPTION_DEBUG_VARIABLE_MAPPING;
static const string_t OPTION_BEFORE_RECORDS;
static const string_t OPTION_AFTER_RECORDS;
static const string_t OPTION_FOR_EACH;
static const string_t OPTION_WHERE;
static const string_t OPTION_DROP;
static const string_t OPTION_DEFINE;
Configuration parse(const std::vector<string_t>& arguments) {
Configuration c;
RelationConfiguration currentRelation;
for (int i = 0; i < arguments.size();) {
string_t option = readNext(arguments, i);
if (option == OPTION_BEFORE_RECORDS) currentRelation.awkBeforeRecords = readNext(arguments, i);
else if (option == OPTION_AFTER_RECORDS) currentRelation.awkAfterRecords = readNext(arguments, i);
else if (option == OPTION_FOR_EACH) currentRelation.awkForEach = readNext(arguments, i);
else if (option == OPTION_WHERE) currentRelation.awkForEach = L"(" + readNext(arguments, i) + L")";
else if (option == OPTION_DROP) currentRelation.drop = true;
else if (option == OPTION_INPUT_ATTRIBUTES_APPEND) currentRelation.inputAttributesAppend = true;
else if (option == OPTION_INPUT_ATTRIBUTES_PREPEND) currentRelation.inputAttributesPrepend = true;
else if (option == OPTION_DEBUG_VARIABLE_MAPPING) currentRelation.debugVariableMapping = true;
else if (option == OPTION_RELATION) {
addRelation(c, currentRelation); // previous relation
currentRelation.relation = readNext(arguments, i);
} else if (option == OPTION_OUTPUT_ATTRIBUTE) {
relpipe::writer::AttributeMetadata attribute;
attribute.attributeName = readNext(arguments, i);
attribute.typeId = parseTypeId(readNext(arguments, i));
currentRelation.writerMetadata.push_back(attribute);
} else if (option == OPTION_DEFINE) {
DefinitionRecipe definition;
definition.name = readNext(arguments, i);
definition.type = readNext(arguments, i);
definition.value = readNext(arguments, i);
if (currentRelation.relation.size()) currentRelation.definitions.push_back(definition);
else c.definitions.push_back(definition);
} 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 string_t CLIParser::OPTION_RELATION = L"--relation";
const string_t CLIParser::OPTION_OUTPUT_ATTRIBUTE = L"--output-attribute";
const string_t CLIParser::OPTION_INPUT_ATTRIBUTES_APPEND = L"--input-attributes-append";
const string_t CLIParser::OPTION_INPUT_ATTRIBUTES_PREPEND = L"--input-attributes-prepend";
const string_t CLIParser::OPTION_DEBUG_VARIABLE_MAPPING = L"--debug-variable-mapping";
const string_t CLIParser::OPTION_BEFORE_RECORDS = L"--before-records";
const string_t CLIParser::OPTION_AFTER_RECORDS = L"--after-records";
const string_t CLIParser::OPTION_FOR_EACH = L"--for-each";
const string_t CLIParser::OPTION_WHERE = L"--where";
const string_t CLIParser::OPTION_DROP = L"--drop";
const string_t CLIParser::OPTION_DEFINE = L"--define";
}
}
}