ezc/src/funinfo.h

166 lines
4.4 KiB
C++
Executable File

/*
* This file is a part of EZC -- Easy templating in C++
* and is distributed under the (new) BSD licence.
* Author: Tomasz Sowa <t.sowa@ttmath.org>
*/
/*
* Copyright (c) 2007-2012, Tomasz Sowa
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name Tomasz Sowa nor the names of contributors to this
* project may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef headerfile_ezc_funinfo
#define headerfile_ezc_funinfo
#include <vector>
namespace Ezc
{
struct FunData
{
FunData()
{
}
virtual ~FunData()
{
}
};
template<class StreamType>
struct FunInfo
{
// output stream
StreamType & out;
// the out stream is treated in case sensitive
// used only in [is...] statements
// default: true
bool case_sensitive;
// table of parameters
// the table can be empty
std::vector<std::wstring> & params;
// the first parameter
// you can always use it even if there is not any parameters (params is empty)
// in such a way the reference points to an empty string
const std::wstring & par;
// an input stream used in [filter] statement
// if there is other statement than [filter] then this is an empty stream
const StreamType & in;
// indicates that this function is from [for ...] statement
bool is_for;
// indicates that this function is from [if ...] statement
// is true for all kind of if's: if-one, if-any, if-no....
bool is_if;
// indicates that this function is from [is ...] or [is-no ...] statements
bool is_is;
// indicates that this funcion is a normal statement e.g.: [funcion_name]
bool is_normal;
// indicates that this function is from a filter statement [filter ...]
bool is_filter;
// a pointer to FunData struct
// !! IMPROVE ME
// !! give some info here
// can be null
FunData * fun_data;
FunData * last_fun_data;
bool remove_fun_data;
// this is set by Generator
// it indicates the number of a current iteration for the [for] statement (the first iteration is 0)
// if there was not any [for] before the value is zero
// for other statements than [for] this is always zero
size_t iter;
// this is set by Generator
// it indicates the number of a previous [for] iteration
// if there was not any [for] before the value is zero
// for a [for] it returns not the current iterator but a value from a previous [for]
size_t last_iter;
// return value from a user function (default false if not set directly by the user function)
// for a variable it is set to true if the variable is not empty
bool res;
// arguments: output_stream, table_of_parameters, the_first_parameter
FunInfo(StreamType & o,
std::vector<std::wstring> & pars,
const std::wstring & first_par,
const StreamType & i) : out(o), params(pars), par(first_par), in(i)
{
Clear();
}
void Clear()
{
res = false; // result is false by default
is_for = false;
is_if = false;
is_is = false;
is_normal = false;
is_filter = false;
iter = 0;
last_iter = 0;
case_sensitive = true;
remove_fun_data = true;
fun_data = 0;
last_fun_data = 0;
}
};
} // namespace Ezc
#endif