gui2::DefaultParser Class Reference

Provides basic algorirthm for parsing multi-string data representing content of multi-column ASCII file. More...

Inheritance diagram for gui2::DefaultParser:

Collaboration diagram for gui2::DefaultParser:

Public Member Functions
	DefaultParser (const ParserOptions &options)
std::string	getLine (size_t index) const override
	Returns a pair representing raw line and flag describing parsing results. More...
std::vector< std::vector< std::string > >	parsedData () const override
	Returns 2D vector representing parsed text. Skipped lines are not present. More...
std::vector< std::string >	parseResults (size_t index) const override
	Returns parsed text for given line index. More...
void	process (const std::vector< std::string > &raw_data) override
	Parse data representing content of ASCII file. More...
size_t	totalLineCount () const override
	Returns total number of lines in raw data. More...

Private Attributes
accept_int_t	m_isSkipLineNumber
accept_string_t	m_isValidLineContent
line_splitter_t	m_line_splitter
std::map< size_t, std::vector< std::string > >	m_parsedData
std::vector< std::string >	m_rawData
	correspondence of parsed data to original line index More...

Detailed Description

Provides basic algorirthm for parsing multi-string data representing content of multi-column ASCII file.

• Skips empty lines or lines matching the prefix.
• Skips lines matching given line number pattern.
• Parse data in columns of basing on given separator value.

Definition at line 32 of file defaultparser.h.

Constructor & Destructor Documentation

DefaultParser()

gui2::DefaultParser::DefaultParser

(

const ParserOptions &

options

)

Definition at line 21 of file defaultparser.cpp.

{
    m_isSkipLineNumber = Utils::CreateLineNumberPatternValidator(options.m_skip_index_pattern);
    m_isValidLineContent = Utils::CreateLinePrefixValidator(options.m_header_prefix);
    m_line_splitter = Utils::CreateSeparatorBasedSplitter(options.m_separator);
}

References gui2::Utils::CreateLineNumberPatternValidator(), gui2::Utils::CreateLinePrefixValidator(), gui2::Utils::CreateSeparatorBasedSplitter(), gui2::ParserOptions::m_header_prefix, m_isSkipLineNumber, m_isValidLineContent, m_line_splitter, gui2::ParserOptions::m_separator, and gui2::ParserOptions::m_skip_index_pattern.

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Member Function Documentation

getLine()

std::string gui2::DefaultParser::getLine ( size_t  index ) const

overridevirtual

Returns a pair representing raw line and flag describing parsing results.

Implements gui2::ParserInterface.

Definition at line 55 of file defaultparser.cpp.

{
    if (index >= m_rawData.size())
        throw std::runtime_error("Error in DefaultParser: out of bounds.");
 
    return m_rawData[index];
}

References m_rawData.

parsedData()

std::vector< std::vector< std::string > > gui2::DefaultParser::parsedData ( ) const

overridevirtual

Returns 2D vector representing parsed text. Skipped lines are not present.

Implements gui2::ParserInterface.

Definition at line 69 of file defaultparser.cpp.

{
    std::vector<std::vector<std::string>> result;
    for (size_t index = 0; index < totalLineCount(); ++index) {
        if (auto it = m_parsedData.find(index); it != m_parsedData.end())
            result.push_back(it->second);
    }
 
    return result;
}

References m_parsedData, and totalLineCount().

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parseResults()

std::vector< std::string > gui2::DefaultParser::parseResults ( size_t  index ) const

overridevirtual

Returns parsed text for given line index.

If line was skipped during parsing, returns empty vector.

Implements gui2::ParserInterface.

Definition at line 63 of file defaultparser.cpp.

{
    auto it = m_parsedData.find(index);
    return it == m_parsedData.end() ? std::vector<std::string>() : it->second;
}

References m_parsedData.

process()

void gui2::DefaultParser::process ( const std::vector< std::string > &  raw_data )

overridevirtual

Parse data representing content of ASCII file.

Implements gui2::ParserInterface.

Definition at line 30 of file defaultparser.cpp.

{
    m_rawData = raw_data;
    m_parsedData.clear();
 
    int index{0};
    for (const auto& line : m_rawData) {
        bool isValidLine = m_isValidLineContent(line) && !m_isSkipLineNumber(index + 1);
 
        if (isValidLine)
            m_parsedData.emplace(index, m_line_splitter(line));
 
        ++index;
    }
}

References m_isSkipLineNumber, m_isValidLineContent, m_line_splitter, m_parsedData, and m_rawData.

totalLineCount()

size_t gui2::DefaultParser::totalLineCount ( ) const

overridevirtual

Returns total number of lines in raw data.

Implements gui2::ParserInterface.

Definition at line 48 of file defaultparser.cpp.

{
    return m_rawData.size();
}

References m_rawData.

Referenced by parsedData().

Member Data Documentation

m_isSkipLineNumber

accept_int_t gui2::DefaultParser::m_isSkipLineNumber

private

Definition at line 47 of file defaultparser.h.

Referenced by DefaultParser(), and process().

m_isValidLineContent

accept_string_t gui2::DefaultParser::m_isValidLineContent

private

Definition at line 48 of file defaultparser.h.

Referenced by DefaultParser(), and process().

m_line_splitter

line_splitter_t gui2::DefaultParser::m_line_splitter

private

Definition at line 49 of file defaultparser.h.

Referenced by DefaultParser(), and process().

m_parsedData

std::map<size_t, std::vector<std::string> > gui2::DefaultParser::m_parsedData

private

Definition at line 52 of file defaultparser.h.

Referenced by parsedData(), parseResults(), and process().

m_rawData

std::vector<std::string> gui2::DefaultParser::m_rawData

private

correspondence of parsed data to original line index

Definition at line 50 of file defaultparser.h.

Referenced by getLine(), process(), and totalLineCount().

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

• /home/www/ba/gui2/dataloader/defaultparser.h
• /home/www/ba/gui2/dataloader/defaultparser.cpp