text: /*
   * SurgeScript
   * A scripting language for games
   * Copyright 2016-2018 Alexandre Martins <alemartf(at)gmail(dot)com>
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   * runtime/sslib/console.c
   * SurgeScript standard library: Console
   */
  
  #include <stdio.h>
  #include <string.h>
  #include "../vm.h"
  #include "../object.h"
  #include "../object_manager.h"
  #include "../../util/util.h"
  
  /* private stuff */
  static surgescript_var_t* fun_constructor(surgescript_object_t* object, const surgescript_var_t** param, int num_params);
  static surgescript_var_t* fun_main(surgescript_object_t* object, const surgescript_var_t** param, int num_params);
  static surgescript_var_t* fun_destroy(surgescript_object_t* object, const surgescript_var_t** param, int num_params);
  static surgescript_var_t* fun_spawn(surgescript_object_t* object, const surgescript_var_t** param, int num_params);
  static surgescript_var_t* fun_print(surgescript_object_t* object, const surgescript_var_t** param, int num_params);
  static surgescript_var_t* fun_write(surgescript_object_t* object, const surgescript_var_t** param, int num_params);
  static surgescript_var_t* fun_readline(surgescript_object_t* object, const surgescript_var_t** param, int num_params);
  
  
  /*
   * surgescript_sslib_register_console()
   * Register methods
   */
  void surgescript_sslib_register_console(surgescript_vm_t* vm)
  {
      surgescript_vm_bind(vm, "Console", "constructor", fun_constructor, 0);
      surgescript_vm_bind(vm, "Console", "state:main", fun_main, 0);
      surgescript_vm_bind(vm, "Console", "destroy", fun_destroy, 0);
      surgescript_vm_bind(vm, "Console", "spawn", fun_spawn, 1);
      surgescript_vm_bind(vm, "Console", "print", fun_print, 1);
      surgescript_vm_bind(vm, "Console", "write", fun_write, 1);
      surgescript_vm_bind(vm, "Console", "readline", fun_readline, 0);
  }
  
  
  
  /* my functions */
  
  /* constructor */
  surgescript_var_t* fun_constructor(surgescript_object_t* object, const surgescript_var_t** param, int num_params)
  {
      /* do nothing */
      return NULL;
  }
  
  /* main state */
  surgescript_var_t* fun_main(surgescript_object_t* object, const surgescript_var_t** param, int num_params)
  {
      surgescript_object_set_active(object, false); /* we don't need to spend time updating this object */
      return NULL;
  }
  
  /* destroy */
  surgescript_var_t* fun_destroy(surgescript_object_t* object, const surgescript_var_t** param, int num_params)
  {
      /* do nothing, as system objects cannot be destroyed */
      return NULL;
  }
  
  /* spawn */
  surgescript_var_t* fun_spawn(surgescript_object_t* object, const surgescript_var_t** param, int num_params)
  {
      /* do nothing; you can't spawn children on this object */
      return NULL;
  }
  
  /* print a line to stdout */
  surgescript_var_t* fun_print(surgescript_object_t* object, const surgescript_var_t** param, int num_params)
  {
      const surgescript_objectmanager_t* manager = surgescript_object_manager(object);
      char* str = surgescript_var_get_string(param[0], manager);
      puts(str);
      ssfree(str);
      fflush(stdout); /* keep this */
      return NULL;
  }
  
  /* write a string to stdout */
  surgescript_var_t* fun_write(surgescript_object_t* object, const surgescript_var_t** param, int num_params)
  {
      const surgescript_objectmanager_t* manager = surgescript_object_manager(object);
      char* str = surgescript_var_get_string(param[0], manager);
      fputs(str, stdout);
      ssfree(str);
      fflush(stdout);
      return NULL;
  }
  
  /* read a line from stdin */
  surgescript_var_t* fun_readline(surgescript_object_t* object, const surgescript_var_t** param, int num_params)
  {
      char str[1024] = "";
      char* result = fgets(str, sizeof(str) / sizeof(char), stdin);
  
      if(result != NULL && !ferror(stdin)) {
          if(!feof(stdin)) {
              int len = strlen(result);
              if(len > 0)
                  result[len - 1] = 0;
          }
          return surgescript_var_set_string(surgescript_var_create(), result);
      }
  
      return NULL;
  }