read_record()

bool MayaFlux::IO::DelimitedTextReader::read_record ( std::vector< ParsedField > &  fields, bool &  at_end  )

private

Definition at line 408 of file DelimitedTextReader.cpp.

{
    fields.clear();
    at_end = false;
 
    std::string value;
    bool quoted = false;
    bool closed_quote = false;
    bool field_start = true;
    bool field_quoted = false;
    bool saw_input = false;
 
    while (true) {
        const int next = m_file.get();
        if (next == std::char_traits<char>::eof()) {
            if (m_file.bad()) {
                m_last_error = "Failed to read delimited text file";
                return false;
            }
 
            if (quoted) {
                m_last_error = "Unterminated quoted field";
                return false;
            }
 
            if (!saw_input) {
                at_end = true;
                return true;
            }
 
            fields.push_back({ .value = std::move(value), .quoted = field_quoted });
            return true;
        }
 
        saw_input = true;
        const char c = static_cast<char>(next);
        if (quoted) {
            if (c == '"') {
                if (m_file.peek() == '"') {
                    m_file.get();
                    value.push_back('"');
                } else {
                    quoted = false;
                    closed_quote = true;
                }
            } else {
                value.push_back(c);
            }
 
            continue;
        }
 
        if (c == m_active_delimiter || c == '\n' || c == '\r') {
            fields.push_back({ .value = std::move(value), .quoted = field_quoted });
            value.clear();
            field_start = true;
            field_quoted = false;
            closed_quote = false;
            if (c == '\r' && m_file.peek() == '\n')
                m_file.get();
 
            if (c != m_active_delimiter)
                return true;
 
            continue;
        }
 
        if (c == '"' && field_start) {
            quoted = true;
            field_start = false;
            field_quoted = true;
            continue;
        }
 
        if (c == '"' || closed_quote) {
            m_last_error = "Unexpected character after quoted field";
            return false;
        }
 
        value.push_back(c);
        field_start = false;
    }
}

References m_active_delimiter, m_file, MayaFlux::IO::CompositeReader::m_last_error, and value.

Referenced by open(), read_next(), and seek().

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