163 lines
3.9 KiB
C++
163 lines
3.9 KiB
C++
/*
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* This file is a part of PikoTools
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* and is distributed under the (new) BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2021, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name Tomasz Sowa nor the names of contributors to this
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* project may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef headerfile_picotools_csv_csvparser
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#define headerfile_picotools_csv_csvparser
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#include "space/space.h"
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#include <string>
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#include <fstream>
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namespace PT
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{
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/*
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*
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* https://datatracker.ietf.org/doc/html/rfc4180
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*
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*/
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class CSVParser
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{
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public:
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enum Status
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{
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ok,
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cant_open_file,
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};
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Status parse_file(const char * file_name, Space & out_space);
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Status parse_file(const std::string & file_name, Space & out_space);
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Status parse_file(const wchar_t * file_name, Space & out_space);
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Status parse_file(const std::wstring & file_name, Space & out_space);
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Status parse(const char * str, Space & out_space);
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Status parse(const std::string & str, Space & out_space);
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Status parse(const wchar_t * str, Space & out_space);
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Status parse(const std::wstring & str, Space & out_space);
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protected:
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/*
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the last status of parsing, set by Parse() methods
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*/
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Status status;
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Space * space;
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/*
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true if parse_file() method was called
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false if parse() was called
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*/
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bool reading_from_file;
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/*
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true if parse(wchar_t *) or parse(std::wstring&) was called
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*/
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bool reading_from_wchar_string;
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/*
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pointers to the current character
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if parse() is being used
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*/
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const char * pchar_ascii;
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const wchar_t * pchar_unicode;
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/*
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last read char
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or -1 if the end
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*/
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int lastc;
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/*
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a number of a line in which there is a syntax_error
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*/
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int line;
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/*
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current file
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may it would be better to make a pointer?
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if we parse only a string then there is no sense to have such an object
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*/
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std::ifstream file;
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/*
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input file is in UTF-8
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default: true
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*/
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bool input_as_utf8;
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void parse();
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void parse_row(Space & row_space);
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bool read_value_to(Space & row_space);
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bool read_quoted_value_to(std::wstring & value);
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bool read_non_quoted_value_to(std::wstring & value);
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/*
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* copied from SpaceParser
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* may it would be better to have a class with those methods and inherit from it?
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*/
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int read_utf8_char();
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int read_ascii_char();
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int read_char_from_wchar_string();
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int read_char_from_utf8_string();
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int read_char_from_ascii_string();
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int read_char_no_escape();
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int read_char();
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};
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}
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#endif
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