vp::Parser Class Reference

#include <VP_Parse.hpp>

Public Member Functions
	Parser (const std::string &_id, const std::string &_file, const std::string &_extension=".varpar")
	Create the object, set errors if there are and set some configuration from the parameters.
	~Parser ()
	Deconstructor.
ParserStatus	checkStatus () const
	Get the constructed starts.
std::string	getID () const
	Get the current object ID.
std::string	getVal (const std::string &_key) const
	Get value of _key.
ParserReturn	parse ()
	Public API wrapper for Parser::__parse() function.

Protected Member Functions
virtual ParserReturn	__parse ()
	Private member of the parse function.

Private Attributes
std::string	extension
std::string	fpath
std::string	id
ParserReturn	parseRet
ParserStatus	status

Detailed Description

Definition at line 35 of file VP_Parse.hpp.

Constructor & Destructor Documentation

Parser()

vp::Parser::Parser	(	const std::string &	_id,
		const std::string &	_file,
		const std::string &	_extension = ".varpar" )

Create the object, set errors if there are and set some configuration from the parameters.

Parameters

_id	Set the ID of the object
_file	Set the path of the file
_extension	Set the file extension

Definition at line 16 of file VP_Parse.cpp.

        : id(_id), fpath(_file), extension(_extension)
    {
        if (!fs::exists(_file))
        {
            const std::string &error = __VP_ERROR_THROW_DEFAULT_MSG + _file + " : Does not exist";
 
            std::cerr << error << "\n";
 
            this->status.error = error;
            this->status.constructed = false;
 
            return;
        }
 
        const std::string &extensionSubstr = this->fpath.substr(fpath.size() - _extension.size());
 
        if (extensionSubstr != _extension)
        {
            const std::string &error = __VP_ERROR_THROW_DEFAULT_MSG + _file + " : Does not have the required file extension, required is: " + _extension;
 
            std::cerr << error << "\n";
 
            this->status.error = error;
            this->status.constructed = false;
            
            return;
        }
 
        this->status.constructed = true;
    }

References __VP_ERROR_THROW_DEFAULT_MSG, extension, fpath, id, and status.

~Parser()

vp::Parser::~Parser

(

)

Deconstructor.

Member Function Documentation

__parse()

ParserReturn vp::Parser::__parse ( )

protectedvirtual

Private member of the parse function.

Returns

ParserReturn Parsed information

Definition at line 55 of file VP_Parse.cpp.

    {
        std::vector<std::string> output;
 
        std::map<std::string, std::string> conf;
        std::ifstream file(this->fpath);
        std::string line;
 
        ssize_t lineNum = 0;
 
        while (std::getline(file, line))
        {
            lineNum++;
 
            // Skip if comment or empty line
            if (line.empty() || line[0] == ';') continue;
 
            std::istringstream iss(line);
            std::string key, val;
 
            if (std::getline(iss, key, '=') && std::getline(iss, val))
            {
                key.erase(0, key.find_first_not_of(" \t"));
                key.erase(key.find_last_not_of(" \t") + 1);
 
                val.erase(0, val.find_first_not_of(" \t"));
                val.erase(val.find_last_not_of(" \t") + 1);
 
                if (conf.find(key) != conf.end())
                {
                    output.emplace_back(std::string("ERR: LINE: " + std::to_string(lineNum)));
                    output.emplace_back("Duplicate member : " + line);
 
                    return { conf, output, false };
                }
 
                conf[key] = val;
            }
 
            else
            {
                output.emplace_back(std::string("ERR: LINE: " + std::to_string(lineNum)));
                output.emplace_back(std::string("No equality operator to set value for `" + line + "`"));
 
                return { conf, output, false };
            }
        }
 
        return { conf, output, true };
    }

References fpath.

Referenced by parse().

checkStatus()

ParserStatus vp::Parser::checkStatus

(

)

const

Get the constructed starts.

Returns

ParserStatus

Definition at line 114 of file VP_Parse.cpp.

    { return this->status; }

References status.

getID()

std::string vp::Parser::getID

(

)

const

Get the current object ID.

Returns

std::string Current object ID

Definition at line 117 of file VP_Parse.cpp.

    { return this->id; }

References id.

getVal()

std::string vp::Parser::getVal

(

const std::string &

_key

)

const

Get value of _key.

Parameters

_key	Key value to find

Returns

std::string Return the value

Definition at line 106 of file VP_Parse.cpp.

    {
        if (this->parseRet.config.find(_key) != this->parseRet.config.end())
            return this->parseRet.config.at(_key);
 
        return "";
    }

References parseRet.

parse()

ParserReturn vp::Parser::parse

(

)

Public API wrapper for Parser::__parse() function.

Returns

ParserReturn Parsed information

Definition at line 48 of file VP_Parse.cpp.

    {
        this->parseRet = this->__parse();
 
        return this->parseRet;
    }

References __parse(), and parseRet.

Member Data Documentation

extension

std::string vp::Parser::extension

private

Definition at line 44 of file VP_Parse.hpp.

Referenced by Parser().

fpath

std::string vp::Parser::fpath

private

Definition at line 39 of file VP_Parse.hpp.

Referenced by Parser(), and __parse().

id

std::string vp::Parser::id

private

Definition at line 38 of file VP_Parse.hpp.

Referenced by Parser(), and getID().

parseRet

ParserReturn vp::Parser::parseRet

private

Definition at line 42 of file VP_Parse.hpp.

Referenced by getVal(), and parse().

status

ParserStatus vp::Parser::status

private

Definition at line 41 of file VP_Parse.hpp.

Referenced by Parser(), and checkStatus().

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The documentation for this class was generated from the following files:

• inc/varparse.cpp/VP_Parse.hpp
• src/VP_Parse.cpp