df02774ff5
auto str = StringOutputStream()(bla) use form was not doing copy elision or move, but copy
499 lines
14 KiB
C++
499 lines
14 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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#pragma once
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#include <cstdlib>
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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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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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return atoi( string );
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}
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inline bool char_is_whitespace( char c ){
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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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for (;; )
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{
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if ( !char_is_whitespace( *string ) ) {
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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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for (;; )
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{
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char c = *string;
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if ( c != '0' ) {
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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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if ( *string == '-' || *string == '+' ) { // signed zero - acceptable
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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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for (; *string != '\0'; ++string )
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{
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if ( *string != '0' ) {
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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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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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string = string_remove_whitespace( string );
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if ( string_empty( string ) ) {
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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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// 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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// no fraction or exponent
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return true;
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}
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if ( *string == '.' ) {
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// fraction part
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if ( *string++ != '0' ) {
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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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// 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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// exponent part
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string = string_remove_sign( ++string );
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if ( *string++ != '0' ) {
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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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// 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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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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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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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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if ( string_empty( string ) ) {
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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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if ( string_empty( string ) ) {
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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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if ( string_empty( string ) || *string == ' ' ) {
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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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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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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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if ( first != last && ( string_empty( string ) || *string == ' ' ) ) {
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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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return string_empty( string );
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}
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if ( *string++ != ' ' ) {
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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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if ( string_empty( string ) ) {
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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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if ( string_empty( string ) ) {
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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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#define RETURN_FALSE_IF_FAIL( expression ) do{ if ( !expression ) {return false; } }while( 0 )
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inline void Tokeniser_unexpectedError( Tokeniser& tokeniser, const char* token, const char* expected ){
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globalErrorStream() << tokeniser.getLine() << ':' << 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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const char* token = tokeniser.getToken();
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if ( token != 0 && string_parse_float( token, f ) ) {
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return true;
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}
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//fallback for 1.#IND 1.#INF 1.#QNAN cases, happening sometimes after texture locking algorithms
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else if ( token != 0 && strstr( token, ".#" ) ) {
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globalWarningStream() << "Warning: " << tokeniser.getLine() << ':' << tokeniser.getColumn() << ": expected parse problem at '" << token << "': wanted '#number'\nProcessing anyway\n";
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// *strstr( token, ".#" ) = '\0';
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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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const char* token = tokeniser.getToken();
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if ( token != 0 && string_parse_double( token, f ) ) {
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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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const char* token = tokeniser.getToken();
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if ( token != 0 && string_parse_int( token, i ) ) {
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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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const char* token = tokeniser.getToken();
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if ( token != 0 && string_parse_size( token, i ) ) {
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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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const char* token = tokeniser.getToken();
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if ( token != 0 && string_equal( token, expected ) ) {
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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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const char* token = tokeniser.getToken();
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if ( token == 0 ) {
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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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inline void CopiedString_importString( CopiedString& self, const char* string ){
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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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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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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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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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if ( !string_parse_int( string, self ) ) {
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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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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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int i;
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if ( string_parse_int( string, i ) && i >= 0 ) {
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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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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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if ( !string_parse_float( string, self ) ) {
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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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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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if ( !string_parse_vector3( string, self ) ) {
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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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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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Caller::thunk( environment, FirstConversion( firstArgument ) );
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}
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};
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class CopiedStringFromString
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{
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CopiedString m_value;
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public:
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CopiedStringFromString( const char* string ){
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CopiedString_importString( m_value, string );
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}
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operator CopiedString() 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 CopiedString_toString( const StringImportCallback& self, CopiedString value ){
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CopiedString_exportString( value, self );
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}
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typedef ConstReferenceCaller1<StringImportCallback, CopiedString, CopiedString_toString> CopiedStringToString;
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template<typename Caller>
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inline StringImportCallback makeCopiedStringStringImportCallback( const Caller& caller ){
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return StringImportCallback( caller.getEnvironment(), ImportConvert1<StringImportCallback::first_argument_type, Caller, CopiedStringFromString>::thunk );
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}
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template<typename Caller>
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inline StringExportCallback makeCopiedStringStringExportCallback( const Caller& caller ){
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return StringExportCallback( caller.getEnvironment(), ImportConvert1<StringExportCallback::first_argument_type, Caller, CopiedStringToString>::thunk );
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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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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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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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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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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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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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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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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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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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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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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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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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return StringExportCallback( caller.getEnvironment(), ImportConvert1<StringExportCallback::first_argument_type, Caller, SizeToString>::thunk );
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}
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