/*
  File autogenerated by gengetopt @generator_version@
  generated with the following command:
  @command_line@

  The developers of gengetopt consider the fixed text that goes in all
  gengetopt output files to be in the public domain:
  we make no copyright claims on it.
*/

/* If we use autoconf.  */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "getopt.h"

#include "@source_name@.@header_file_ext@"

const char *@args_info@_purpose = "@purpose@";

const char *@args_info@_usage = "Usage:@if@ no_package @then@ " @package_var_name@ "@endif@ @usage_string@";

const char *@args_info@_description = "@description@";

const char *@args_info@_help[] = {
  @help_option_print:method@  0
};
@IF@ has_hidden @THEN@
const char *@args_info@_full_help[] = {
  @full_help_option_print:method@  0
};
@ENDIF@

static
void clear_given (struct @args_info@ *args_info);
static
void clear_args (struct @args_info@ *args_info);

static int
@parser_name@_internal (int argc, char * const *argv, struct @args_info@ *args_info, int override, int initialize, int check_required, const char *additional_error);

@IF@ check_required_options @THEN@
static int
@parser_name@_required2 (struct @args_info@ *args_info, const char *prog_name, const char *additional_error);
@ENDIF@
@IF@ cmd_list @THEN@
struct line_list
{
  char * string_arg;
  struct line_list * next;
};

static struct line_list *cmd_line_list = 0;
static struct line_list *cmd_line_list_tmp = 0;

static void
free_cmd_list(void)
{
  /* free the list of a previous call */
  if (cmd_line_list)
    {
      while (cmd_line_list) {
        cmd_line_list_tmp = cmd_line_list;
        cmd_line_list = cmd_line_list->next;
        free (cmd_line_list_tmp->string_arg);
        free (cmd_line_list_tmp);
      }
    }
}

@ENDIF@

@struct_def:method{iteration=true}@
@option_values:method{iteration=true}@
@IF@ do_generate_strdup @THEN@
static char *
gengetopt_strdup (const char *s);

@ENDIF@
static
void clear_given (struct @args_info@ *args_info)
{
  @given_init:method{iteration=true}@
}

static
void clear_args (struct @args_info@ *args_info)
{
  @clear_arg:method@
}

static
void init_args_info(struct @args_info@ *args_info)
{
  @init_args_info:method@
}

void
@parser_name@_print_version (void)
{
  printf ("%s %s\n", @package_var_name@, @version_var_name@);
}

void
@parser_name@_print_help (void)
{
  int i = 0;
  @parser_name@_print_version ();

  if (strlen(@args_info@_purpose) > 0)
    printf("\n%s\n", @args_info@_purpose);

  printf("\n%s\n\n", @args_info@_usage);

  if (strlen(@args_info@_description) > 0)
    printf("%s\n", @args_info@_description);

  while (@args_info@_help[i])
    printf("%s\n", @args_info@_help[i++]);
}

@IF@ has_hidden @THEN@
void
@parser_name@_print_full_help (void)
{
  int i = 0;
  @parser_name@_print_version ();

  if (strlen(@args_info@_purpose) > 0)
    printf("\n%s\n", @args_info@_purpose);

  printf("\n%s\n\n", @args_info@_usage);

  if (strlen(@args_info@_description) > 0)
    printf("%s\n", @args_info@_description);

  while (@args_info@_full_help[i])
    printf("%s\n", @args_info@_full_help[i++]);
}

@ENDIF@
void
@parser_name@_init (struct @args_info@ *args_info)
{
  clear_given (args_info);
  clear_args (args_info);
  init_args_info (args_info);
@IF@ handle_unamed @THEN@

  args_info->inputs = NULL;
  args_info->inputs_num = 0;
@ENDIF@
}

static void
@parser_name@_release (struct @args_info@ *args_info)
{
  @free:method@
  clear_given (args_info);
}

int
@parser_name@_file_save(const char *filename, struct @args_info@ *args_info)
{
  FILE *outfile;
  int i = 0;

  outfile = fopen(filename, "w");

  if (!outfile)
    {
      fprintf (stderr, "%s: cannot open file for writing: %s\n", @package_var_name@, filename);
      return EXIT_FAILURE;
    }

  @file_save_loop:method@
  fclose (outfile);

  i = EXIT_SUCCESS;
  return i;
}

void
@parser_name@_free (struct @args_info@ *args_info)
{
  @parser_name@_release (args_info);
}

@IF@ check_possible_values @THEN@
/*
 * Returns:
 * - the index of the matched value
 * - -1 if no argument has been specified
 * - -2 if more than one value has matched
 */
static int
check_possible_values(const char *val, char *values[])
{
  int i, found, last;
  size_t len;

  if (!val)   /* otherwise strlen() crashes below */
    return -1; /* -1 means no argument for the option */

  found = last = 0;

  for (i = 0, len = strlen(val); values[i]; ++i)
    {
      if (strncmp(val, values[i], len) == 0)
        {
          ++found;
          last = i;
          if (strlen(values[i]) == len)
            return i; /* exact macth no need to check more */
        }
    }

  if (found == 1) /* one match: OK */
    return last;

  return (found ? -2 : -1); /* return many values are matched */
}

@ENDIF@

@IF@ do_generate_strdup @THEN@
/* gengetopt_strdup() */
/* strdup.c replacement of strdup, which is not standard */
char *
gengetopt_strdup (const char *s)
{
  char *result = NULL;
  if (!s)
    return result;

  result = (char*)malloc(strlen(s) + 1);
  if (result == (char*)0)
    return (char*)0;
  strcpy(result, s);
  return result;
}

@ENDIF@
@IF@ multiple_token_functions @THEN@
static char *
get_multiple_arg_token(const char *arg)
{
  char *tok, *ret;
  size_t len, num_of_escape;
  int i, j;

  if (!arg)
    return NULL;

  tok = strchr (arg, ',');
  num_of_escape = 0;

  /* make sure it is not escaped */
  while (tok)
    {
      if (*(tok-1) == '\\')
        {
          /* find the next one */
          tok = strchr (tok+1, ',');
          ++num_of_escape;
        }
      else
        break;
    }

  if (tok)
    len = (size_t)(tok - arg + 1);
  else
    len = strlen (arg) + 1;

  len -= num_of_escape;

  ret = (char *) malloc (len);

  i = 0;
  j = 0;
  while (arg[i] && (j < len-1))
    {
      if (arg[i] == '\\')
        ++i;

      ret[j++] = arg[i++];
    }

  ret[len-1] = '\0';

  return ret;
}

static char *
get_multiple_arg_token_next(const char *arg)
{
  char *tok;

  if (!arg)
    return NULL;

  tok = strchr (arg, ',');

  /* make sure it is not escaped */
  while (tok)
    {
      if (*(tok-1) == '\\')
        {
          /* find the next one */
          tok = strchr (tok+1, ',');
        }
      else
        break;
    }

  if (! tok || strlen(tok) == 1)
    return 0;

  return tok+1;
}

@ENDIF@
@IF@ multiple_options @THEN@
static int
check_multiple_option_occurrences(const char *prog_name, unsigned int option_given, int min, int max, const char *option_desc);

int
check_multiple_option_occurrences(const char *prog_name, unsigned int option_given, int min, int max, const char *option_desc)
{
  int error = 0;

  if (option_given && ! (min < 0 && max < 0))
    {
      if (min >= 0 && max >= 0)
        {
          if (min == max)
            {
              /* specific occurrences */
              if (option_given != min)
                {
                  fprintf (stderr, "%s: %s option occurrences must be %d\n",
                    prog_name, option_desc, min);
                  error = 1;
                }
            }
          else if (option_given < min
              || option_given > max)
            {
              /* range occurrences */
              fprintf (stderr, "%s: %s option occurrences must be between %d and %d\n",
                prog_name, option_desc, min, max);
              error = 1;
            }
        }
      else if (min >= 0)
        {
          /* at least check */
          if (option_given < min)
            {
              fprintf (stderr, "%s: %s option occurrences must be at least %d\n",
                prog_name, option_desc, min);
              error = 1;
            }
        }
      else if (max >= 0)
        {
          /* at most check */
          if (option_given > max)
            {
              fprintf (stderr, "%s: %s option occurrences must be at most %d\n",
                prog_name, option_desc, max);
              error = 1;
            }
        }
    }
    
  return error;
}
@ENDIF@
@reset_groups:method{iteration=true}@
int
@parser_name@ (int argc, char * const *argv, struct @args_info@ *args_info)
{
  return @parser_name@2 (argc, argv, args_info, 0, 1, 1);
}

int
@parser_name@2 (int argc, char * const *argv, struct @args_info@ *args_info, int override, int initialize, int check_required)
{
  int result;

  result = @parser_name@_internal (argc, argv, args_info, override, initialize, check_required, NULL);

  @final_exit@
}

int
@parser_name@_required (struct @args_info@ *args_info, const char *prog_name)
{
@IF@ check_required_options @THEN@
  int result = EXIT_SUCCESS;

  if (@parser_name@_required2(args_info, prog_name, NULL) > 0)
    result = EXIT_FAILURE;

  @final_exit@
@ELSE@
  return EXIT_SUCCESS;
@ENDIF@
}

@IF@ check_required_options @THEN@
int
@parser_name@_required2 (struct @args_info@ *args_info, const char *prog_name, const char *additional_error)
{
  int error = 0;

  /* checks for required options */
  @handle_required:method@
  /* checks for dependences among options */
  @handle_dependencies:method{iteration=true}@

  return error;
}

@ENDIF@
@IF@ include_getopt @THEN@
@custom_getopt:method@
@ENDIF@
int
@parser_name@_internal (int argc, char * const *argv, struct @args_info@ *args_info, int override, int initialize, int check_required, const char *additional_error)
{
  int c;	/* Character of the parsed option.  */
@IF@ multiple_token_vars @THEN@
  char *multi_token, *multi_next; /* for multiple options */
@endif@
  @list_def:method{iteration=true}@
  int error = 0;
  struct @args_info@ local_args_info;

  if (initialize)
    @parser_name@_init (args_info);

  @parser_name@_init (&local_args_info);

  optarg = 0;
  optind = 0;
  opterr = 1;
  optopt = '?';

  while (1)
    {
@IF@ check_possible_values @THEN@
      int found = 0;
@ENDIF@
      int option_index = 0;
      char *stop_char;

      static struct option long_options[] = {
        @long_option_struct:method{iteration=true}@
        { NULL,	0, NULL, 0 }
      };

      stop_char = 0;
      @IF@ include_getopt @THEN@
      custom_optarg = optarg;
      custom_optind = optind;
      custom_opterr = opterr;
      custom_optopt = optopt;

      c = custom_getopt_long (argc, argv, "@getopt_string@", long_options, &option_index);

      optarg = custom_optarg;
      optind = custom_optind;
      opterr = custom_opterr;
      optopt = custom_optopt;
      @ELSE@
      c = getopt_long (argc, argv, "@getopt_string@", long_options, &option_index);
      @ENDIF@

      if (c == -1) break;	/* Exit from `while (1)' loop.  */

      switch (c)
        {
        @handle_option:method{iteration=true}@

        case 0:	/* Long option with no short option */
          @handle_no_short_option:method{iteration=true}@
        case '?':	/* Invalid option.  */
          /* `getopt_long' already printed an error message.  */
          goto failure;

        default:	/* bug: option not considered.  */
          fprintf (stderr, "%s: option unknown: %c%s\n", @package_var_name@, c, (additional_error ? additional_error : ""));
          abort ();
        } /* switch */
    } /* while */

  @handle_group:method{iteration=true}@

  @multiple_fill_array:method{iteration=true}@
  @update_multiple_given:method{iteration=true}@

@IF@ check_required_options @THEN@
  if (check_required)
    {
      error += @parser_name@_required2 (args_info, argv[0], additional_error);
    }
@ENDIF@

  @parser_name@_release (&local_args_info);

  if ( error )
    return (EXIT_FAILURE);

@IF@ handle_unamed @THEN@
  if (optind < argc)
    {
      int i = 0 ;
      int found_prog_name = 0;
      /* whether program name, i.e., argv[0], is in the remaining args
         (this may happen with some implementations of getopt,
          but surely not with the one included by gengetopt) */

@IF@ include_getopt @THEN@
@ELSE@
      i = optind;
      while (i < argc)
        if (argv[i++] == argv[0]) {
          found_prog_name = 1;
          break;
        }
      i = 0;
@ENDIF@

      args_info->inputs_num = argc - optind - found_prog_name;
      args_info->inputs =
        (char **)(malloc ((args_info->inputs_num)*sizeof(char *))) ;
      while (optind < argc)
@IF@ include_getopt @THEN@
        args_info->inputs[ i++ ] = gengetopt_strdup (argv[optind++]) ;
@ELSE@
        if (argv[optind++] != argv[0])
          args_info->inputs[ i++ ] = gengetopt_strdup (argv[optind-1]) ;
@ENDIF@
    }

@ENDIF@
  return 0;

failure:
  @list_free:method@
  @parser_name@_release (&local_args_info);
  return (EXIT_FAILURE);
}
@IF@ conf_parser @THEN@

#ifndef CONFIG_FILE_LINE_SIZE
#define CONFIG_FILE_LINE_SIZE 2048
#endif
#define ADDITIONAL_ERROR " in configuration file "

#define CONFIG_FILE_LINE_BUFFER_SIZE (CONFIG_FILE_LINE_SIZE+3)
/* 3 is for "--" and "=" */

static int
_@parser_name@_configfile (char * const filename, int *my_argc)
{
  FILE* file;
  char my_argv[CONFIG_FILE_LINE_BUFFER_SIZE+1];
  char linebuf[CONFIG_FILE_LINE_SIZE];
  int line_num = 0;
  int result = 0, equal;
  char *fopt, *farg;
  char *str_index;
  size_t len, next_token;
  char delimiter;

  if ((file = fopen(filename, "r")) == NULL)
    {
      fprintf (stderr, "%s: Error opening configuration file '%s'\n",
               @package_var_name@, filename);
      return EXIT_FAILURE;
    }

  while ((fgets(linebuf, CONFIG_FILE_LINE_SIZE, file)) != NULL)
    {
      ++line_num;
      my_argv[0] = '\0';
      len = strlen(linebuf);
      if (len > (CONFIG_FILE_LINE_BUFFER_SIZE-1))
        {
          fprintf (stderr, "%s:%s:%d: Line too long in configuration file\n",
                   @package_var_name@, filename, line_num);
          result = EXIT_FAILURE;
          break;
        }

      /* find first non-whitespace character in the line */
      next_token = strspn (linebuf, " \t\r\n");
      str_index  = linebuf + next_token;

      if ( str_index[0] == '\0' || str_index[0] == '#')
        continue; /* empty line or comment line is skipped */

      fopt = str_index;

      /* truncate fopt at the end of the first non-valid character */
      next_token = strcspn (fopt, " \t\r\n=");

      if (fopt[next_token] == '\0') /* the line is over */
        {
          farg  = NULL;
          equal = 0;
          goto noarg;
        }

      /* remember if equal sign is present */
      equal = (fopt[next_token] == '=');
      fopt[next_token++] = '\0';

      /* advance pointers to the next token after the end of fopt */
      next_token += strspn (fopt + next_token, " \t\r\n");

      /* check for the presence of equal sign, and if so, skip it */
      if ( !equal )
        if ((equal = (fopt[next_token] == '=')))
          {
            next_token++;
            next_token += strspn (fopt + next_token, " \t\r\n");
          }
      str_index  += next_token;

      /* find argument */
      farg = str_index;
      if ( farg[0] == '\"' || farg[0] == '\'' )
        { /* quoted argument */
          str_index = strchr (++farg, str_index[0] ); /* skip opening quote */
          if (! str_index)
            {
              fprintf
                (stderr,
                 "%s:%s:%d: unterminated string in configuration file\n",
                 @package_var_name@, filename, line_num);
              result = EXIT_FAILURE;
              break;
            }
        }
      else
        { /* read up the remaining part up to a delimiter */
          next_token = strcspn (farg, " \t\r\n#\'\"");
          str_index += next_token;
        }

      /* truncate farg at the delimiter and store it for further check */
      delimiter = *str_index, *str_index++ = '\0';

      /* everything but comment is illegal at the end of line */
      if (delimiter != '\0' && delimiter != '#')
        {
          str_index += strspn(str_index, " \t\r\n");
          if (*str_index != '\0' && *str_index != '#')
            {
              fprintf
                (stderr,
                 "%s:%s:%d: malformed string in configuration file\n",
                 @package_var_name@, filename, line_num);
              result = EXIT_FAILURE;
              break;
            }
        }

    noarg:
      if (!strcmp(fopt,"include")) {
        if (farg && *farg) {
          result = _@parser_name@_configfile(farg, my_argc);
        } else {
          fprintf(stderr, "%s:%s:%d: include requires a filename argument.\n",
                  @package_var_name@, filename, line_num);
        }
        continue;
      }
      len = strlen(fopt);
      strcat (my_argv, len > 1 ? "--" : "-");
      strcat (my_argv, fopt);
      if (len > 1 && ((farg && *farg) || equal))
        strcat (my_argv, "=");
      if (farg && *farg)
        strcat (my_argv, farg);
      ++(*my_argc);

      cmd_line_list_tmp = (struct line_list *) malloc (sizeof (struct line_list));
      cmd_line_list_tmp->next = cmd_line_list;
      cmd_line_list = cmd_line_list_tmp;
      cmd_line_list->string_arg = gengetopt_strdup(my_argv);
    } /* while */

  if (file)
    fclose(file);
  return result;
}

int
@parser_name@_configfile (char * const filename,
                           struct @args_info@ *args_info,
                           int override, int initialize, int check_required)
{
  int i, result;
  int my_argc = 1;
  char **my_argv_arg;
  char *additional_error;

  /* store the program name */
  cmd_line_list_tmp = (struct line_list *) malloc (sizeof (struct line_list));
  cmd_line_list_tmp->next = cmd_line_list;
  cmd_line_list = cmd_line_list_tmp;
  cmd_line_list->string_arg = gengetopt_strdup (@package_var_name@);

  result = _@parser_name@_configfile(filename, &my_argc);

  if (result != EXIT_FAILURE) {
    my_argv_arg = (char **) malloc((my_argc+1) * sizeof(char *));
    cmd_line_list_tmp = cmd_line_list;

    for (i = my_argc - 1; i >= 0; --i) {
      my_argv_arg[i] = cmd_line_list_tmp->string_arg;
      cmd_line_list_tmp = cmd_line_list_tmp->next;
    }

    my_argv_arg[my_argc] = 0;

    additional_error = (char *)malloc(strlen(filename) + strlen(ADDITIONAL_ERROR) + 1);
    strcpy (additional_error, ADDITIONAL_ERROR);
    strcat (additional_error, filename);
    result =
      @parser_name@_internal (my_argc, my_argv_arg, args_info,
                              override, initialize, check_required,
                              additional_error);

    free (additional_error);
    free (my_argv_arg);
  }

  free_cmd_list();
  @final_exit@
}
@ENDIF@
@IF@ generate_string_parser @THEN@

static unsigned int
@parser_name@_create_argv(const char *cmdline_, char ***argv_ptr, const char *prog_name)
{
  char *cmdline, *p;
  size_t n = 0, j;
  int i;

  if (prog_name) {
    cmd_line_list_tmp = (struct line_list *) malloc (sizeof (struct line_list));
    cmd_line_list_tmp->next = cmd_line_list;
    cmd_line_list = cmd_line_list_tmp;
    cmd_line_list->string_arg = gengetopt_strdup (prog_name);

    ++n;
  }

  cmdline = gengetopt_strdup(cmdline_);
  p = cmdline;

  while (p && strlen(p))
    {
      j = strcspn(p, " \t");
      ++n;
      if (j && j < strlen(p))
        {
          p[j] = '\0';

          cmd_line_list_tmp = (struct line_list *) malloc (sizeof (struct line_list));
          cmd_line_list_tmp->next = cmd_line_list;
          cmd_line_list = cmd_line_list_tmp;
          cmd_line_list->string_arg = gengetopt_strdup (p);

          p += (j+1);
          p += strspn(p, " \t");
        }
      else
        {
          cmd_line_list_tmp = (struct line_list *) malloc (sizeof (struct line_list));
          cmd_line_list_tmp->next = cmd_line_list;
          cmd_line_list = cmd_line_list_tmp;
          cmd_line_list->string_arg = gengetopt_strdup (p);

          break;
        }
    }

  *argv_ptr = (char **) malloc((n + 1) * sizeof(char *));
  cmd_line_list_tmp = cmd_line_list;
  for (i = (n-1); i >= 0; --i)
    {
      (*argv_ptr)[i] = cmd_line_list_tmp->string_arg;
      cmd_line_list_tmp = cmd_line_list_tmp->next;
    }

  (*argv_ptr)[n] = NULL;

  free(cmdline);
  return n;
}

int
@parser_name@_string(const char *cmdline, struct @args_info@ *args_info, const char *prog_name)
{
  return @parser_name@_string2(cmdline, args_info, prog_name, 0, 1, 1);
}

int
@parser_name@_string2(const char *cmdline, struct @args_info@ *args_info, const char *prog_name,
    int override, int initialize, int check_required)
{
  char **argv_ptr = 0;
  int result;
  unsigned int argc;
  
  argc = @parser_name@_create_argv(cmdline, &argv_ptr, prog_name);
  
  result =
    @parser_name@_internal (argc, argv_ptr, args_info, override, initialize, check_required, 0);
  
  if (argv_ptr)
    {
      free (argv_ptr);
    }

  free_cmd_list();
  
  @final_exit@
}

@ENDIF@