decompose, add new main group "Application"

PICLI code brush
This commit is contained in:
2024-09-13 13:31:31 +03:00
parent cdc966bd8c
commit bf5bb45771
6 changed files with 166 additions and 113 deletions

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/*
PIP - Platform Independent Primitives
Command-Line Parser
Ivan Pelipenko peri4ko@yandex.ru
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "picli.h"
#include "pisysteminfo.h"
//! \class PICLI picli.h
//! \details
//! \~english \section PICLI_sec0 Synopsis
//! \~russian \section PICLI_sec0 Краткий обзор
//! \~english
//! This class provide handy parsing of command-line arguments. First you should add
//! arguments to %PICLI with function \a addArgument(). Then you can check if there
//! is some argument in application command-line with function \a hasArgument(),
//! or obtain argument value by \a argumentValue().
//!
//! \~russian
//! Этот класс предоставляет удобный механизм для разбора аргументов командной строки.
//! Сперва необходимо добавить аргументы в %PICLI с помощью методов \a addArgument().
//! Далее можно проверять аргументы на наличие в командной строке методом \a hasArgument(),
//! а также получать их значения при помощи \a argumentValue().
//!
//! \~english \section PICLI_sec1 Example
//! \~russian \section PICLI_sec1 Пример
//! \~\code
//! int main(int argc, char ** argv) {
//! PICLI cli(argc, argv);
//! cli.addArgument("console");
//! cli.addArgument("debug");
//! cli.addArgument("Value", "v", "value", true);
//! if (cli.hasArgument("console"))
//! piCout << "console active";
//! if (cli.hasArgument("debug"))
//! piCout << "debug active";
//! piCout << "Value =" << cli.argumentValue("Value");
//! return 0;
//! }
//! \endcode
//!
//! \~english These executions are similar:
//! \~russian Эти вызовы будут идентичны:
//!
//! \~\code
//! a.out -cd -v 10
//! a.out --value 10 -dc
//! a.out -c -v 10 -d
//! a.out --console -d -v 10
//! a.out --debug -c --value 10
//! \endcode
//!
PICLI::PICLI(int argc, char * argv[]) {
needParse = debug_ = true;
_prefix_short = "-";
_prefix_full = "--";
_count_opt = 0;
_count_mand = 0;
for (int i = 0; i < argc; ++i)
_args_raw << argv[i];
if (argc > 0) PISystemInfo::instance()->execCommand = argv[0];
}
void PICLI::parse() {
if (!needParse) return;
PIString cra, full;
Argument * last = 0;
for (int i = 1; i < _args_raw.size_s(); ++i) {
cra = _args_raw[i];
if (cra.left(2) == _prefix_full) {
last = 0;
full = cra.right(cra.length() - 2);
piForeach(Argument & a, _args) {
if (a.full_key == full) {
a.found = true;
last = &a;
break;
}
}
} else {
if (cra.left(1) == _prefix_short) {
last = 0;
for (int j = 1; j < cra.length(); ++j) {
bool found = false;
piForeach(Argument & a, _args) {
if ((a.short_key != '\0') && (a.short_key == cra[j])) {
a.found = true;
last = &a;
found = true;
break;
}
}
if (!found) break;
}
} else {
if (last == 0 ? true : !last->has_value) {
if (_args_mand.size_s() < _count_mand) {
_args_mand << cra;
continue;
}
if (_args_opt.size_s() < _count_opt || _count_opt < 0) {
_args_opt << cra;
continue;
}
piCoutObj << "[PICli] Arguments overflow, \"" << cra << "\" ignored";
}
if (last == 0 ? false : last->has_value) {
last->value = cra;
last = 0;
}
}
}
}
needParse = false;
}

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/*! \file picli.h
* \ingroup Core
* \~\brief
* \~english Command-Line parser
* \~russian Парсер командной строки
*/
/*
PIP - Platform Independent Primitives
Command-Line Parser
Ivan Pelipenko peri4ko@yandex.ru
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PICLI_H
#define PICLI_H
#include "piset.h"
#include "pistringlist.h"
//! \ingroup Core
//! \~\brief
//! \~english Command-Line parser.
//! \~russian Парсер командной строки.
class PIP_EXPORT PICLI {
public:
//! \~english Constructs %PICLI from "argc" and "argv" from "int main()" method.
//! \~russian Создает %PICLI из "argc" и "argv" из метода "int main()".
PICLI(int argc, char * argv[]);
//! \~english Add argument with name "name", short key = name first letter and full key = name.
//! \~russian Добавляет аргумент с именем "name", коротким ключом = первой букве имени и полным ключом = имени.
void addArgument(const PIString & name, bool value = false) {
_args << Argument(name, name[0], name, value);
needParse = true;
}
//! \~english Add argument with name "name", short key = "shortKey" and full key = name.
//! \~russian Добавляет аргумент с именем "name", коротким ключом = "shortKey" и полным ключом = имени.
void addArgument(const PIString & name, const PIChar & shortKey, bool value = false) {
_args << Argument(name, shortKey, name, value);
needParse = true;
}
//! \~english Add argument with name "name", short key = "shortKey" and full key = name.
//! \~russian Добавляет аргумент с именем "name", коротким ключом = "shortKey" и полным ключом = имени.
void addArgument(const PIString & name, const char * shortKey, bool value = false) {
_args << Argument(name, PIChar::fromUTF8(shortKey), name, value);
needParse = true;
}
//! \~english Add argument with name "name", short key = "shortKey" and full key = "fullKey".
//! \~russian Добавляет аргумент с именем "name", коротким ключом = "shortKey" и полным ключом = "fullKey".
void addArgument(const PIString & name, const PIChar & shortKey, const PIString & fullKey, bool value = false) {
_args << Argument(name, shortKey, fullKey, value);
needParse = true;
}
//! \~english Add argument with name "name", short key = "shortKey" and full key = "fullKey".
//! \~russian Добавляет аргумент с именем "name", коротким ключом = "shortKey" и полным ключом = "fullKey".
void addArgument(const PIString & name, const char * shortKey, const PIString & fullKey, bool value = false) {
_args << Argument(name, PIChar::fromUTF8(shortKey), fullKey, value);
needParse = true;
}
//! \~english Returns unparsed command-line argument by index "index". Index 0 is program execute command.
//! \~russian Возвращает исходный аргумент командной строки по индексу "index". Индекс 0 это команда вызова программы.
PIString rawArgument(int index) {
parse();
return _args_raw[index];
}
PIString mandatoryArgument(int index) {
parse();
return _args_mand[index];
}
PIString optionalArgument(int index) {
parse();
return _args_opt[index];
}
//! \~english Returns unparsed command-line arguments.
//! \~russian Возвращает исходные аргументы командной строки.
const PIStringList & rawArguments() {
parse();
return _args_raw;
}
const PIStringList & mandatoryArguments() {
parse();
return _args_mand;
}
const PIStringList & optionalArguments() {
parse();
return _args_opt;
}
//! \~english Returns program execute command without arguments.
//! \~russian Возвращает команду вызова программы без аргументов.
PIString programCommand() {
parse();
return _args_raw.size() > 0 ? _args_raw.front() : PIString();
}
//! \~english Returns if argument "name" found.
//! \~russian Возвращает найден ли аргумент "name".
bool hasArgument(const PIString & name) {
parse();
piForeach(Argument & i, _args)
if (i.name == name && i.found) return true;
return false;
}
//! \~english Returns argument "name" value, or empty string if this is no value.
//! \~russian Возвращает значение аргумента "name" или пустую строку, если значения нет.
PIString argumentValue(const PIString & name) {
parse();
piForeach(Argument & i, _args)
if (i.name == name && i.found) return i.value;
return PIString();
}
//! \~english Returns short key of argument "name", or empty string if this is no argument.
//! \~russian Возвращает короткий ключ аргумента "name" или пустую строку, если аргумента нет.
PIString argumentShortKey(const PIString & name) {
piForeach(Argument & i, _args)
if (i.name == name) return PIString(i.short_key);
return PIString();
}
//! \~english Returns full key of argument "name", or empty string if this is no argument.
//! \~russian Возвращает полный ключ аргумента "name" или пустую строку, если аргумента нет.
PIString argumentFullKey(const PIString & name) {
piForeach(Argument & i, _args)
if (i.name == name) return i.full_key;
return PIString();
}
const PIString & shortKeyPrefix() const { return _prefix_short; }
const PIString & fullKeyPrefix() const { return _prefix_full; }
int mandatoryArgumentsCount() const { return _count_mand; }
int optionalArgumentsCount() const { return _count_opt; }
void setShortKeyPrefix(const PIString & prefix) {
_prefix_short = prefix;
needParse = true;
}
void setFullKeyPrefix(const PIString & prefix) {
_prefix_full = prefix;
needParse = true;
}
void setMandatoryArgumentsCount(const int count) {
_count_mand = count;
needParse = true;
}
void setOptionalArgumentsCount(const int count) {
_count_opt = count;
needParse = true;
}
bool debug() const { return debug_; }
void setDebug(bool debug) { debug_ = debug; }
PIConstChars className() const { return "PICLI"; }
PIString name() const { return PIStringAscii("CLI"); }
private:
struct Argument {
Argument() { has_value = found = false; }
Argument(const PIString & n, const PIChar & s, const PIString & f, bool v) {
name = n;
short_key = s;
full_key = f;
has_value = v;
found = false;
}
PIString name;
PIChar short_key;
PIString full_key;
PIString value;
bool has_value, found;
};
void parse();
PIString _prefix_short, _prefix_full;
PIStringList _args_raw, _args_mand, _args_opt;
PISet<PIString> keys_full, keys_short;
PIVector<Argument> _args;
int _count_mand, _count_opt;
bool needParse, debug_;
};
#endif // PICLI_H