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parser.hh
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/**
* @file parser.hh
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Wed Nov 13 2013
* @date last modification: Fri Dec 08 2017
*
* @brief File parser interface
*
*
* Copyright (©) 2014-2018 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu 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.
*
* Akantu 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 Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
#include "aka_random_generator.hh"
/* -------------------------------------------------------------------------- */
#include <map>
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_PARSER_HH__
#define __AKANTU_PARSER_HH__
namespace akantu {
#if !defined(DOXYGEN)
// clang-format off
#define AKANTU_SECTION_TYPES \
(cohesive_inserter) \
(contact) \
(embedded_interface) \
(friction) \
(global) \
(heat) \
(integration_scheme) \
(material) \
(mesh) \
(model) \
(model_solver) \
(neighborhood) \
(neighborhoods) \
(non_linear_solver) \
(non_local) \
(rules) \
(solver) \
(time_step_solver) \
(user) \
(weight_function) \
(not_defined)
// clang-format on
/// Defines the possible section types
AKANTU_CLASS_ENUM_DECLARE(ParserType, AKANTU_SECTION_TYPES)
AKANTU_CLASS_ENUM_OUTPUT_STREAM(ParserType, AKANTU_SECTION_TYPES)
AKANTU_CLASS_ENUM_INPUT_STREAM(ParserType, AKANTU_SECTION_TYPES)
#endif
/// Defines the possible search contexts/scopes (for parameter search)
enum ParserParameterSearchCxt {
_ppsc_current_scope = 0x1,
_ppsc_parent_scope = 0x2,
_ppsc_current_and_parent_scope = 0x3
};
/* ------------------------------------------------------------------------ */
/* Parameters Class */
/* ------------------------------------------------------------------------ */
class ParserSection;
/// @brief The ParserParameter objects represent the end of tree branches as
/// they
/// are the different informations contained in the input file.
class ParserParameter {
public:
ParserParameter()
: name(std::string()), value(std::string()), dbg_filename(std::string()) {
}
ParserParameter(const std::string & name, const std::string & value,
const ParserSection & parent_section)
: parent_section(&parent_section), name(name), value(value),
dbg_filename(std::string()) {}
ParserParameter(const ParserParameter & param) = default;
virtual ~ParserParameter() = default;
/// Get parameter name
const std::string & getName() const { return name; }
/// Get parameter value
const std::string & getValue() const { return value; }
/// Set info for debug output
void setDebugInfo(const std::string & filename, UInt line, UInt column) {
dbg_filename = filename;
dbg_line = line;
dbg_column = column;
}
template <typename T> inline operator T() const;
// template <typename T> inline operator Vector<T>() const;
// template <typename T> inline operator Matrix<T>() const;
/// Print parameter info in stream
void printself(std::ostream & stream,
__attribute__((unused)) unsigned int indent = 0) const {
stream << name << ": " << value << " (" << dbg_filename << ":" << dbg_line
<< ":" << dbg_column << ")";
}
private:
void setParent(const ParserSection & sect) { parent_section = &sect; }
friend class ParserSection;
private:
/// Pointer to the parent section
const ParserSection * parent_section{nullptr};
/// Name of the parameter
std::string name;
/// Value of the parameter
std::string value;
/// File for debug output
std::string dbg_filename;
/// Position of parameter in parsed file
UInt dbg_line, dbg_column;
};
/* ------------------------------------------------------------------------ */
/* Sections Class */
/* ------------------------------------------------------------------------ */
/// ParserSection represents a branch of the parsing tree.
class ParserSection {
public:
using SubSections = std::multimap<ParserType, ParserSection>;
using Parameters = std::map<std::string, ParserParameter>;
private:
using const_section_iterator_ = SubSections::const_iterator;
public:
/* ------------------------------------------------------------------------ */
/* SubSection iterator */
/* ------------------------------------------------------------------------ */
/// Iterator on sections
class const_section_iterator {
public:
using iterator_category = std::forward_iterator_tag;
using value_type = ParserSection;
using pointer = ParserSection *;
using reference = ParserSection &;
const_section_iterator() = default;
const_section_iterator(const const_section_iterator_ & it) : it(it) {}
const_section_iterator(const const_section_iterator & other) = default;
const_section_iterator &
operator=(const const_section_iterator & other) = default;
const ParserSection & operator*() const { return it->second; }
const ParserSection * operator->() const { return &(it->second); }
bool operator==(const const_section_iterator & other) const {
return it == other.it;
}
bool operator!=(const const_section_iterator & other) const {
return it != other.it;
}
const_section_iterator & operator++() {
++it;
return *this;
}
const_section_iterator operator++(int) {
const_section_iterator tmp = *this;
operator++();
return tmp;
}
private:
const_section_iterator_ it;
};
/* ------------------------------------------------------------------------ */
/* Parameters iterator */
/* ------------------------------------------------------------------------ */
/// Iterator on parameters
class const_parameter_iterator {
public:
const_parameter_iterator(const const_parameter_iterator & other) = default;
const_parameter_iterator(const Parameters::const_iterator & it) : it(it) {}
const_parameter_iterator &
operator=(const const_parameter_iterator & other) {
if (this != &other) {
it = other.it;
}
return *this;
}
const ParserParameter & operator*() const { return it->second; }
const ParserParameter * operator->() { return &(it->second); };
bool operator==(const const_parameter_iterator & other) const {
return it == other.it;
}
bool operator!=(const const_parameter_iterator & other) const {
return it != other.it;
}
const_parameter_iterator & operator++() {
++it;
return *this;
}
const_parameter_iterator operator++(int) {
const_parameter_iterator tmp = *this;
operator++();
return tmp;
}
private:
Parameters::const_iterator it;
};
/* ---------------------------------------------------------------------- */
ParserSection() : name(std::string()) {}
ParserSection(const std::string & name, ParserType type)
: parent_section(nullptr), name(name), type(type) {}
ParserSection(const std::string & name, ParserType type,
const std::string & option,
const ParserSection & parent_section)
: parent_section(&parent_section), name(name), type(type),
option(option) {}
ParserSection(const ParserSection & section)
: parent_section(section.parent_section), name(section.name),
type(section.type), option(section.option),
parameters(section.parameters),
sub_sections_by_type(section.sub_sections_by_type) {
setChldrenPointers();
}
ParserSection & operator=(const ParserSection & other) {
if (&other != this) {
parent_section = other.parent_section;
name = other.name;
type = other.type;
option = other.option;
parameters = other.parameters;
sub_sections_by_type = other.sub_sections_by_type;
setChldrenPointers();
}
return *this;
}
virtual ~ParserSection();
virtual void printself(std::ostream & stream, unsigned int indent = 0) const;
/* ---------------------------------------------------------------------- */
/* Creation functions */
/* ---------------------------------------------------------------------- */
public:
ParserParameter & addParameter(const ParserParameter & param);
ParserSection & addSubSection(const ParserSection & section);
protected:
/// Clean ParserSection content
void clean() {
parameters.clear();
sub_sections_by_type.clear();
}
private:
void setChldrenPointers() {
for (auto && param_pair : this->parameters)
param_pair.second.setParent(*this);
for (auto && sub_sect_pair : this->sub_sections_by_type)
sub_sect_pair.second.setParent(*this);
}
/* ---------------------------------------------------------------------- */
/* Accessors */
/* ---------------------------------------------------------------------- */
public:
class SubSectionsRange
: public std::pair<const_section_iterator, const_section_iterator> {
public:
SubSectionsRange(const const_section_iterator & first,
const const_section_iterator & second)
: std::pair<const_section_iterator, const_section_iterator>(first,
second) {}
auto begin() { return this->first; }
auto end() { return this->second; }
};
/// Get begin and end iterators on subsections of certain type
auto getSubSections(ParserType type = ParserType::_not_defined) const {
if (type != ParserType::_not_defined) {
auto range = sub_sections_by_type.equal_range(type);
return SubSectionsRange(range.first, range.second);
} else {
return SubSectionsRange(sub_sections_by_type.begin(),
sub_sections_by_type.end());
}
}
/// Get number of subsections of certain type
UInt getNbSubSections(ParserType type = ParserType::_not_defined) const {
if (type != ParserType::_not_defined) {
return this->sub_sections_by_type.count(type);
} else {
return this->sub_sections_by_type.size();
}
}
/// Get begin and end iterators on parameters
auto getParameters() const {
return std::pair<const_parameter_iterator, const_parameter_iterator>(
parameters.begin(), parameters.end());
}
/* ---------------------------------------------------------------------- */
/// Get parameter within specified context
const ParserParameter & getParameter(
const std::string & name,
ParserParameterSearchCxt search_ctx = _ppsc_current_scope) const {
Parameters::const_iterator it;
if (search_ctx & _ppsc_current_scope)
it = parameters.find(name);
if (it == parameters.end()) {
if ((search_ctx & _ppsc_parent_scope) && parent_section)
return parent_section->getParameter(name, search_ctx);
else {
AKANTU_SILENT_EXCEPTION(
"The parameter " << name
<< " has not been found in the specified context");
}
}
return it->second;
}
/* ------------------------------------------------------------------------ */
/// Get parameter within specified context, with a default value in case the
/// parameter does not exists
template <class T>
const T getParameter(
const std::string & name, const T & default_value,
ParserParameterSearchCxt search_ctx = _ppsc_current_scope) const {
try {
T tmp = this->getParameter(name, search_ctx);
return tmp;
} catch (debug::Exception &) {
return default_value;
}
}
/* ------------------------------------------------------------------------ */
/// Check if parameter exists within specified context
bool hasParameter(
const std::string & name,
ParserParameterSearchCxt search_ctx = _ppsc_current_scope) const {
Parameters::const_iterator it;
if (search_ctx & _ppsc_current_scope)
it = parameters.find(name);
if (it == parameters.end()) {
if ((search_ctx & _ppsc_parent_scope) && parent_section)
return parent_section->hasParameter(name, search_ctx);
else {
return false;
}
}
return true;
}
/* --------------------------------------------------------------------------
*/
/// Get value of given parameter in context
template <class T>
T getParameterValue(
const std::string & name,
ParserParameterSearchCxt search_ctx = _ppsc_current_scope) const {
const ParserParameter & tmp_param = getParameter(name, search_ctx);
T t = tmp_param;
return t;
}
/* --------------------------------------------------------------------------
*/
/// Get section name
const std::string getName() const { return name; }
/// Get section type
ParserType getType() const { return type; }
/// Get section option
const std::string getOption(const std::string & def = "") const {
return option != "" ? option : def;
}
protected:
void setParent(const ParserSection & sect) { parent_section = &sect; }
/* ---------------------------------------------------------------------- */
/* Members */
/* ---------------------------------------------------------------------- */
private:
/// Pointer to the parent section
const ParserSection * parent_section{nullptr};
/// Name of section
std::string name;
/// Type of section, see AKANTU_SECTION_TYPES
ParserType type{ParserType::_not_defined};
/// Section option
std::string option;
/// Map of parameters in section
Parameters parameters;
/// Multi-map of subsections
SubSections sub_sections_by_type;
};
/* ------------------------------------------------------------------------ */
/* Parser Class */
/* ------------------------------------------------------------------------ */
/// Root of parsing tree, represents the global ParserSection
class Parser : public ParserSection {
public:
Parser() : ParserSection("global", ParserType::_global) {}
void parse(const std::string & filename);
std::string getLastParsedFile() const;
static bool isPermissive() { return permissive_parser; }
public:
/// Parse real scalar
static Real parseReal(const std::string & value,
const ParserSection & section);
/// Parse real vector
static Vector<Real> parseVector(const std::string & value,
const ParserSection & section);
/// Parse real matrix
static Matrix<Real> parseMatrix(const std::string & value,
const ParserSection & section);
/// Parse real random parameter
static RandomParameter<Real>
parseRandomParameter(const std::string & value,
const ParserSection & section);
protected:
/// General parse function
template <class T, class Grammar>
static T parseType(const std::string & value, Grammar & grammar);
protected:
// friend class Parsable;
static bool permissive_parser;
std::string last_parsed_file;
};
inline std::ostream & operator<<(std::ostream & stream,
const ParserParameter & _this) {
_this.printself(stream);
return stream;
}
inline std::ostream & operator<<(std::ostream & stream,
const ParserSection & section) {
section.printself(stream);
return stream;
}
} // namespace akantu
namespace std {
template <> struct iterator_traits<::akantu::Parser::const_section_iterator> {
using iterator_category = input_iterator_tag;
using value_type = ::akantu::ParserParameter;
using difference_type = ptrdiff_t;
using pointer = const ::akantu::ParserParameter *;
using reference = const ::akantu::ParserParameter &;
};
} // namespace std
#include "parser_tmpl.hh"
#endif /* __AKANTU_PARSER_HH__ */
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