mirror of https://github.com/TTimo/GtkRadiant.git
554 lines
13 KiB
C++
554 lines
13 KiB
C++
/*
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Copyright (C) 2001-2006, William Joseph.
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All Rights Reserved.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#if !defined (INCLUDED_STRINGIO_H)
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#define INCLUDED_STRINGIO_H
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#include <stdlib.h>
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#include <cctype>
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#include "generic/vector.h"
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#include "iscriplib.h"
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#include "string/string.h"
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#include "generic/callback.h"
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inline float string_read_float(const char* string)
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{
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return static_cast<float>(atof(string));
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}
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inline int string_read_int(const char* string)
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{
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return atoi(string);
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}
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inline bool char_is_whitespace(char c)
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{
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return c == ' ' || c == '\t';
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}
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inline const char* string_remove_whitespace(const char* string)
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{
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for(;;)
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{
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if(!char_is_whitespace(*string))
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{
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break;
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}
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++string;
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}
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return string;
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}
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inline const char* string_remove_zeros(const char* string)
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{
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for(;;)
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{
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char c = *string;
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if(c != '0')
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{
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break;
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}
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++string;
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}
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return string;
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}
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inline const char* string_remove_sign(const char* string)
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{
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if(*string == '-' || *string == '+') // signed zero - acceptable
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{
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return ++string;
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}
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return string;
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}
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inline bool string_is_unsigned_zero(const char* string)
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{
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for(;*string != '\0'; ++string)
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{
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if(*string != '0')
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{
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return false;
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}
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}
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return true;
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}
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inline bool string_is_signed_zero(const char* string)
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{
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return string_is_unsigned_zero(string_remove_sign(string));
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}
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//[whitespaces][+|-][nnnnn][.nnnnn][e|E[+|-]nnnn]
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//(where whitespaces are any tab or space character and nnnnn may be any number of digits)
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inline bool string_is_float_zero(const char* string)
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{
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string = string_remove_whitespace(string);
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if(string_empty(string))
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{
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return false;
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}
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string = string_remove_sign(string);
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if(string_empty(string))
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{
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// no whole number or fraction part
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return false;
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}
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// whole-number part
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string = string_remove_zeros(string);
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if(string_empty(string))
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{
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// no fraction or exponent
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return true;
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}
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if(*string == '.')
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{
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// fraction part
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if(*string++ != '0')
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{
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// invalid fraction
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return false;
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}
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string = string_remove_zeros(++string);
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if(string_empty(string))
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{
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// no exponent
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return true;
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}
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}
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if(*string == 'e' || *string == 'E')
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{
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// exponent part
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string = string_remove_sign(++string);
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if(*string++ != '0')
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{
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// invalid exponent
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return false;
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}
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string = string_remove_zeros(++string);
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if(string_empty(string))
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{
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// no trailing whitespace
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return true;
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}
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}
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string = string_remove_whitespace(string);
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return string_empty(string);
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}
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inline double buffer_parse_floating_literal(const char*& buffer)
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{
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return strtod(buffer, const_cast<char**>(&buffer));
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}
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inline int buffer_parse_signed_decimal_integer_literal(const char*& buffer)
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{
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return strtol(buffer, const_cast<char**>(&buffer), 10);
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}
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inline int buffer_parse_unsigned_decimal_integer_literal(const char*& buffer)
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{
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return strtoul(buffer, const_cast<char**>(&buffer), 10);
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}
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// [+|-][nnnnn][.nnnnn][e|E[+|-]nnnnn]
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inline bool string_parse_float(const char* string, float& f)
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{
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if(string_empty(string))
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{
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return false;
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}
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f = float(buffer_parse_floating_literal(string));
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return string_empty(string);
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}
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// format same as float
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inline bool string_parse_double(const char* string, double& f)
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{
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if(string_empty(string))
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{
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return false;
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}
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f = buffer_parse_floating_literal(string);
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return string_empty(string);
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}
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// <float><space><float><space><float>
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template<typename Element>
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inline bool string_parse_vector3(const char* string, BasicVector3<Element>& v)
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{
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if(string_empty(string) || *string == ' ')
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{
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return false;
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}
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v[0] = float(buffer_parse_floating_literal(string));
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if(*string++ != ' ')
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{
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return false;
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}
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v[1] = float(buffer_parse_floating_literal(string));
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if(*string++ != ' ')
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{
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return false;
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}
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v[2] = float(buffer_parse_floating_literal(string));
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return string_empty(string);
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}
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template<typename Float>
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inline bool string_parse_vector(const char* string, Float* first, Float* last)
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{
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if(first != last && (string_empty(string) || *string == ' '))
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{
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return false;
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}
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for(;;)
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{
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*first = float(buffer_parse_floating_literal(string));
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if(++first == last)
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{
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return string_empty(string);
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}
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if(*string++ != ' ')
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{
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return false;
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}
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}
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}
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// decimal signed integer
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inline bool string_parse_int(const char* string, int& i)
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{
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if(string_empty(string))
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{
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return false;
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}
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i = buffer_parse_signed_decimal_integer_literal(string);
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return string_empty(string);
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}
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// decimal unsigned integer
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inline bool string_parse_size(const char* string, std::size_t& i)
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{
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if(string_empty(string))
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{
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return false;
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}
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i = buffer_parse_unsigned_decimal_integer_literal(string);
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return string_empty(string);
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}
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#define RETURN_FALSE_IF_FAIL(expression) if(!expression) return false; else
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inline void Tokeniser_unexpectedError(Tokeniser& tokeniser, const char* token, const char* expected)
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{
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globalErrorStream() << Unsigned(tokeniser.getLine()) << ":" << Unsigned(tokeniser.getColumn()) << ": parse error at '" << (token != 0 ? token : "#EOF") << "': expected '" << expected << "'\n";
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}
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inline bool Tokeniser_getFloat(Tokeniser& tokeniser, float& f)
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{
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const char* token = tokeniser.getToken();
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if(token != 0 && string_parse_float(token, f))
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{
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return true;
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}
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Tokeniser_unexpectedError(tokeniser, token, "#number");
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return false;
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}
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inline bool Tokeniser_getDouble(Tokeniser& tokeniser, double& f)
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{
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const char* token = tokeniser.getToken();
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if(token != 0 && string_parse_double(token, f))
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{
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return true;
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}
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Tokeniser_unexpectedError(tokeniser, token, "#number");
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return false;
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}
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inline bool Tokeniser_getInteger(Tokeniser& tokeniser, int& i)
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{
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const char* token = tokeniser.getToken();
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if(token != 0 && string_parse_int(token, i))
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{
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return true;
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}
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Tokeniser_unexpectedError(tokeniser, token, "#integer");
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return false;
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}
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inline bool Tokeniser_getSize(Tokeniser& tokeniser, std::size_t& i)
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{
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const char* token = tokeniser.getToken();
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if(token != 0 && string_parse_size(token, i))
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{
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return true;
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}
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Tokeniser_unexpectedError(tokeniser, token, "#unsigned-integer");
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return false;
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}
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inline bool Tokeniser_parseToken(Tokeniser& tokeniser, const char* expected)
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{
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const char* token = tokeniser.getToken();
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if(token != 0 && string_equal(token, expected))
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{
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return true;
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}
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Tokeniser_unexpectedError(tokeniser, token, expected);
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return false;
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}
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inline bool Tokeniser_nextTokenIsDigit(Tokeniser& tokeniser)
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{
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const char* token = tokeniser.getToken();
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if(token == 0)
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{
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return false;
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}
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char c = *token;
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tokeniser.ungetToken();
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return std::isdigit(c) != 0;
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}
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template<typename TextOutputStreamType>
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inline TextOutputStreamType& ostream_write(TextOutputStreamType& outputStream, const Vector3& v)
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{
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return outputStream << '(' << v.x() << ' ' << v.y() << ' ' << v.z() << ')';
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}
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inline void CopiedString_importString(CopiedString& self, const char* string)
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{
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self = string;
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}
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typedef ReferenceCaller1<CopiedString, const char*, CopiedString_importString> CopiedStringImportStringCaller;
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inline void CopiedString_exportString(const CopiedString& self, const StringImportCallback& importer)
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{
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importer(self.c_str());
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}
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typedef ConstReferenceCaller1<CopiedString, const StringImportCallback&, CopiedString_exportString> CopiedStringExportStringCaller;
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inline void Bool_importString(bool& self, const char* string)
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{
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self = string_equal(string, "true");
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}
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typedef ReferenceCaller1<bool, const char*, Bool_importString> BoolImportStringCaller;
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inline void Bool_exportString(const bool& self, const StringImportCallback& importer)
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{
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importer(self ? "true" : "false");
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}
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typedef ConstReferenceCaller1<bool, const StringImportCallback&, Bool_exportString> BoolExportStringCaller;
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inline void Int_importString(int& self, const char* string)
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{
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if(!string_parse_int(string, self))
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{
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self = 0;
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}
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}
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typedef ReferenceCaller1<int, const char*, Int_importString> IntImportStringCaller;
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inline void Int_exportString(const int& self, const StringImportCallback& importer)
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{
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char buffer[16];
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sprintf(buffer, "%d", self);
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importer(buffer);
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}
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typedef ConstReferenceCaller1<int, const StringImportCallback&, Int_exportString> IntExportStringCaller;
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inline void Size_importString(std::size_t& self, const char* string)
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{
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int i;
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if(string_parse_int(string, i) && i >= 0)
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{
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self = i;
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}
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else
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{
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self = 0;
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}
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}
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typedef ReferenceCaller1<std::size_t, const char*, Size_importString> SizeImportStringCaller;
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inline void Size_exportString(const std::size_t& self, const StringImportCallback& importer)
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{
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char buffer[16];
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sprintf(buffer, "%u", Unsigned(self));
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importer(buffer);
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}
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typedef ConstReferenceCaller1<std::size_t, const StringImportCallback&, Size_exportString> SizeExportStringCaller;
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inline void Float_importString(float& self, const char* string)
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{
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if(!string_parse_float(string, self))
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{
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self = 0;
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}
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}
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typedef ReferenceCaller1<float, const char*, Float_importString> FloatImportStringCaller;
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inline void Float_exportString(const float& self, const StringImportCallback& importer)
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{
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char buffer[16];
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sprintf(buffer, "%g", self);
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importer(buffer);
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}
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typedef ConstReferenceCaller1<float, const StringImportCallback&, Float_exportString> FloatExportStringCaller;
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inline void Vector3_importString(Vector3& self, const char* string)
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{
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if(!string_parse_vector3(string, self))
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{
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self = Vector3(0, 0, 0);
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}
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}
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typedef ReferenceCaller1<Vector3, const char*, Vector3_importString> Vector3ImportStringCaller;
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inline void Vector3_exportString(const Vector3& self, const StringImportCallback& importer)
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{
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char buffer[64];
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sprintf(buffer, "%g %g %g", self[0], self[1], self[2]);
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importer(buffer);
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}
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typedef ConstReferenceCaller1<Vector3, const StringImportCallback&, Vector3_exportString> Vector3ExportStringCaller;
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template<typename FirstArgument, typename Caller, typename FirstConversion>
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class ImportConvert1
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{
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public:
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static void thunk(void* environment, FirstArgument firstArgument)
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{
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Caller::thunk(environment, FirstConversion(firstArgument));
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}
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};
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class BoolFromString
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{
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bool m_value;
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public:
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BoolFromString(const char* string)
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{
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Bool_importString(m_value, string);
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}
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operator bool() const
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{
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return m_value;
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}
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};
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inline void Bool_toString(const StringImportCallback& self, bool value)
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{
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Bool_exportString(value, self);
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}
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typedef ConstReferenceCaller1<StringImportCallback, bool, Bool_toString> BoolToString;
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template<typename Caller>
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inline StringImportCallback makeBoolStringImportCallback(const Caller& caller)
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{
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return StringImportCallback(caller.getEnvironment(), ImportConvert1<StringImportCallback::first_argument_type, Caller, BoolFromString>::thunk);
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}
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template<typename Caller>
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inline StringExportCallback makeBoolStringExportCallback(const Caller& caller)
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{
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return StringExportCallback(caller.getEnvironment(), ImportConvert1<StringExportCallback::first_argument_type, Caller, BoolToString>::thunk);
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}
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class IntFromString
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{
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int m_value;
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public:
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IntFromString(const char* string)
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{
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Int_importString(m_value, string);
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}
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operator int() const
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{
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return m_value;
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}
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};
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inline void Int_toString(const StringImportCallback& self, int value)
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{
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Int_exportString(value, self);
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}
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typedef ConstReferenceCaller1<StringImportCallback, int, Int_toString> IntToString;
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template<typename Caller>
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inline StringImportCallback makeIntStringImportCallback(const Caller& caller)
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{
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return StringImportCallback(caller.getEnvironment(), ImportConvert1<StringImportCallback::first_argument_type, Caller, IntFromString>::thunk);
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}
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template<typename Caller>
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inline StringExportCallback makeIntStringExportCallback(const Caller& caller)
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{
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return StringExportCallback(caller.getEnvironment(), ImportConvert1<StringExportCallback::first_argument_type, Caller, IntToString>::thunk);
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}
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class SizeFromString
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{
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std::size_t m_value;
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public:
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SizeFromString(const char* string)
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{
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Size_importString(m_value, string);
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}
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operator std::size_t() const
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{
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return m_value;
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}
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};
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inline void Size_toString(const StringImportCallback& self, std::size_t value)
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{
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Size_exportString(value, self);
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}
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typedef ConstReferenceCaller1<StringImportCallback, std::size_t, Size_toString> SizeToString;
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template<typename Caller>
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inline StringImportCallback makeSizeStringImportCallback(const Caller& caller)
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{
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return StringImportCallback(caller.getEnvironment(), ImportConvert1<StringImportCallback::first_argument_type, Caller, SizeFromString>::thunk);
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}
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template<typename Caller>
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inline StringExportCallback makeSizeStringExportCallback(const Caller& caller)
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{
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return StringExportCallback(caller.getEnvironment(), ImportConvert1<StringExportCallback::first_argument_type, Caller, SizeToString>::thunk);
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}
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#endif
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