326 lines
6.3 KiB
C++
326 lines
6.3 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) 2010-2017, 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_confparser_spaceparser
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#define headerfile_picotools_confparser_spaceparser
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#include <fstream>
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#include "space.h"
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namespace PT
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{
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class SpaceParser
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{
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public:
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/*
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ctor -- setting default values (SetDefault() method)
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*/
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SpaceParser();
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/*
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setting the root space
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*/
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void SetSpace(Space * pspace);
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void SetSpace(Space & pspace);
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/*
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setting options of the parser to the default values
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utf8 etc.
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*/
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void SetDefault();
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/*
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status of parsing
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*/
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enum Status { ok, cant_open_file, syntax_error, no_space };
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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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/*
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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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main methods used to parse
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file_name is the path to a file
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*/
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Status Parse(const char * file_name);
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Status Parse(const std::string & file_name);
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Status Parse(const wchar_t * file_name);
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Status Parse(const std::wstring & file_name);
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/*
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main methods used to parse
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str - input string (either 8bit ascii or UTF-8 -- see UTF8() method)
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*/
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Status ParseString(const char * str);
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Status ParseString(const std::string & str);
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/*
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main methods used to parse
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here input string is always in unicode (wide characters)
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*/
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Status ParseString(const wchar_t * str);
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Status ParseString(const std::wstring & str);
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/*
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if true then empty values and lists, e.g:
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option =
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option2 = ()
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will be omitted (not inserted to 'table')
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default: false
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*/
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void SkipEmpty(bool skip);
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/*
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'\' character is used to escape other characters
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so "some \t t\"ext" will produce "some t t"ext"
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default: true
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special characters:
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\0 - 0 (zero code point)
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\t - tabulator (9 code point)
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\r - carriage return (13 code point)
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\n - a new line character (10 code point)
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in other cases we return the last character so \Z gives Z and \\ gives one \
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escape character are not used in commentaries
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so you can write:
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# this is my comment \n but this was not a new line
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*/
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void UseEscapeChar(bool escape);
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/*
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if true then the input file or string (char* or std::string) is treated as UTF-8
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default: true
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*/
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void UTF8(bool utf);
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private:
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/*
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current space set by SetSpace();
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*/
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Space * root_space;
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/*
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a space in which we are now
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*/
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Space * space;
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/*
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true if Parse() method was called
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false if ParseString() was called
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*/
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bool reading_from_file;
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/*
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pointers to the current character
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if ParseString() is in 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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true if ParseString(wchar_t *) or ParseString(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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last read token
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*/
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std::wstring token;
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/*
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last read key
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*/
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std::wstring key;
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/*
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last read list
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*/
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Space::Value value;
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/*
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separator between a variable and a value, default: '='
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*/
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int separator;
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/*
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commentary char, default: '#'
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*/
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int commentary;
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/*
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list starting character, default: '('
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*/
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int list_start;
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/*
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list ending character, default: ')'
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*/
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int list_end;
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/*
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list delimiter, default: ','
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*/
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int list_delimiter;
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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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true if the lastc was escaped (with a backslash)
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we have to know if the last sequence was \" or just "
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*/
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bool char_was_escaped;
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/*
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current file
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*/
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std::ifstream file;
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/*
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if true then empty lists, e.g:
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option =
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option2 = ()
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will be omitted (not inserted to 'table')
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default: false
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*/
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bool skip_empty;
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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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/*
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if true you can use an escape character '\' in quoted values
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*/
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bool use_escape_char;
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/*
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true if we are reading the commentary (#)
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this is to avoid parsing escape characters in the commentary
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*/
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bool reading_commentary;
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std::string afile_name;
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void Parse();
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void ParseLoop();
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void SpaceEnds();
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void SpaceStarts();
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void DeleteFromTable(const std::wstring & var);
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void ReadTokenQuoted();
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void ReadTokenSingle(bool white_delimit, bool new_line_delimit, int delimit1, int delimit2);
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void ReadToken(bool white_delimit, bool new_line_delimit, int delimit1, int delimit2);
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void ReadKey();
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void ReadValueList();
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void ReadValueSingle();
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void ReadValue();
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void AddKeyValuePair();
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int ReadUTF8Char();
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int ReadASCIIChar();
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int ReadCharFromWcharString();
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int ReadCharFromUTF8String();
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int ReadCharFromAsciiString();
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int ReadCharNoEscape();
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int ReadChar();
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bool IsWhite(int c);
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void SkipWhite(bool skip_lines = false);
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void SkipWhiteLines();
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void SkipLine();
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void SkipComment();
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void Trim(std::wstring & s);
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};
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} // namespace
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#endif
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