Function Cvar_WriteVariables

code/qcommon/cvar.cpp:963–1004

============ Cvar_WriteVariables Appends lines containing "set variable value" for all variables with the archive flag set to qtrue. ============ */

============
*/
void Cvar_WriteVariables( fileHandle_t f ) {
	cvar_t	*var;
	char buffer[1024];

	if ( cvar_sort ) {
		Com_DPrintf( "Cvar_Sort: sort cvars\n" );
		cvar_sort = qfalse;
		Cvar_Sort();
	}

	for ( var = cvar_vars; var; var = var->next )
	{
		if ( !var->name || Q_stricmp( var->name, "cl_cdkey" ) == 0 )
			continue;

		if ( var->flags & CVAR_ARCHIVE ) {
			// write the latched value, even if it hasn't taken effect yet
			if ( var->latchedString ) {
				if( strlen( var->name ) + strlen( var->latchedString ) + 10 > sizeof( buffer ) ) {
					Com_Printf( S_COLOR_YELLOW "WARNING: value of variable "
							"\"%s\" too long to write to file\n", var->name );
					continue;
				}
				if ( (var->flags & CVAR_NODEFAULT) && !strcmp( var->latchedString, var->resetString ) ) {
					continue;
				}
				Com_sprintf (buffer, sizeof(buffer), "seta %s \"%s\"\n", var->name, var->latchedString);
			} else {
				if( strlen( var->name ) + strlen( var->string ) + 10 > sizeof( buffer ) ) {
					Com_Printf( S_COLOR_YELLOW "WARNING: value of variable "
							"\"%s\" too long to write to file\n", var->name );
					continue;
				}
				if ( (var->flags & CVAR_NODEFAULT) && !strcmp( var->string, var->resetString ) ) {
					continue;
				}
				Com_sprintf (buffer, sizeof(buffer), "seta %s \"%s\"\n", var->name, var->string);
			}
			FS_Write( buffer, strlen( buffer ), f );
		}
	}
}

/*
============