applications/recenter/recenterCmd.cpp

/*
  File autogenerated by gengetopt version 2.22.4
  generated with the following command:
  gengetopt --file-name recenterCmd --unamed-opts 

  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>

#ifndef FIX_UNUSED
#define FIX_UNUSED(X) (void) (X) /* avoid warnings for unused params */
#endif

#include <getopt.h>

#include "recenterCmd.h"

const char *gengetopt_args_info_purpose = "Moves all integrable objects in an OpenMD file so that the center of mass is at \nthe origin.";

const char *gengetopt_args_info_usage = "Usage: recenter [OPTIONS]... [FILES]...";

const char *gengetopt_args_info_description = "";

const char *gengetopt_args_info_help[] = {
  "  -h, --help           Print help and exit",
  "  -V, --version        Print version and exit",
  "  -o, --output=STRING  Output file name",
    0
};

typedef enum {ARG_NO
  , ARG_STRING
} cmdline_parser_arg_type;

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

static int
cmdline_parser_internal (int argc, char **argv, struct gengetopt_args_info *args_info,
                        struct cmdline_parser_params *params, const char *additional_error);

static int
cmdline_parser_required2 (struct gengetopt_args_info *args_info, const char *prog_name, const char *additional_error);

static char *
gengetopt_strdup (const char *s);

static
void clear_given (struct gengetopt_args_info *args_info)
{
  args_info->help_given = 0 ;
  args_info->version_given = 0 ;
  args_info->output_given = 0 ;
}

static
void clear_args (struct gengetopt_args_info *args_info)
{
  FIX_UNUSED (args_info);
  args_info->output_arg = NULL;
  args_info->output_orig = NULL;
  
}

static
void init_args_info(struct gengetopt_args_info *args_info)
{


  args_info->help_help = gengetopt_args_info_help[0] ;
  args_info->version_help = gengetopt_args_info_help[1] ;
  args_info->output_help = gengetopt_args_info_help[2] ;
  
}

void
cmdline_parser_print_version (void)
{
  printf ("%s %s\n",
     (strlen(CMDLINE_PARSER_PACKAGE_NAME) ? CMDLINE_PARSER_PACKAGE_NAME : CMDLINE_PARSER_PACKAGE),
     CMDLINE_PARSER_VERSION);
}

static void print_help_common(void) {
  cmdline_parser_print_version ();

  if (strlen(gengetopt_args_info_purpose) > 0)
    printf("\n%s\n", gengetopt_args_info_purpose);

  if (strlen(gengetopt_args_info_usage) > 0)
    printf("\n%s\n", gengetopt_args_info_usage);

  printf("\n");

  if (strlen(gengetopt_args_info_description) > 0)
    printf("%s\n\n", gengetopt_args_info_description);
}

void
cmdline_parser_print_help (void)
{
  int i = 0;
  print_help_common();
  while (gengetopt_args_info_help[i])
    printf("%s\n", gengetopt_args_info_help[i++]);
}

void
cmdline_parser_init (struct gengetopt_args_info *args_info)
{
  clear_given (args_info);
  clear_args (args_info);
  init_args_info (args_info);

  args_info->inputs = 0;
  args_info->inputs_num = 0;
}

void
cmdline_parser_params_init(struct cmdline_parser_params *params)
{
  if (params)
    { 
      params->override = 0;
      params->initialize = 1;
      params->check_required = 1;
      params->check_ambiguity = 0;
      params->print_errors = 1;
    }
}

struct cmdline_parser_params *
cmdline_parser_params_create(void)
{
  struct cmdline_parser_params *params = 
    (struct cmdline_parser_params *)malloc(sizeof(struct cmdline_parser_params));
  cmdline_parser_params_init(params);  
  return params;
}

static void
free_string_field (char **s)
{
  if (*s)
    {
      free (*s);
      *s = 0;
    }
}


static void
cmdline_parser_release (struct gengetopt_args_info *args_info)
{
  unsigned int i;
  free_string_field (&(args_info->output_arg));
  free_string_field (&(args_info->output_orig));
  
  
  for (i = 0; i < args_info->inputs_num; ++i)
    free (args_info->inputs [i]);

  if (args_info->inputs_num)
    free (args_info->inputs);

  clear_given (args_info);
}


static void
write_into_file(FILE *outfile, const char *opt, const char *arg, const char *values[])
{
  FIX_UNUSED (values);
  if (arg) {
    fprintf(outfile, "%s=\"%s\"\n", opt, arg);
  } else {
    fprintf(outfile, "%s\n", opt);
  }
}


int
cmdline_parser_dump(FILE *outfile, struct gengetopt_args_info *args_info)
{
  int i = 0;

  if (!outfile)
    {
      fprintf (stderr, "%s: cannot dump options to stream\n", CMDLINE_PARSER_PACKAGE);
      return EXIT_FAILURE;
    }

  if (args_info->help_given)
    write_into_file(outfile, "help", 0, 0 );
  if (args_info->version_given)
    write_into_file(outfile, "version", 0, 0 );
  if (args_info->output_given)
    write_into_file(outfile, "output", args_info->output_orig, 0);
  

  i = EXIT_SUCCESS;
  return i;
}

int
cmdline_parser_file_save(const char *filename, struct gengetopt_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", CMDLINE_PARSER_PACKAGE, filename);
      return EXIT_FAILURE;
    }

  i = cmdline_parser_dump(outfile, args_info);
  fclose (outfile);

  return i;
}

void
cmdline_parser_free (struct gengetopt_args_info *args_info)
{
  cmdline_parser_release (args_info);
}

/** @brief replacement of strdup, which is not standard */
char *
gengetopt_strdup (const char *s)
{
  char *result = 0;
  if (!s)
    return result;

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

int
cmdline_parser (int argc, char **argv, struct gengetopt_args_info *args_info)
{
  return cmdline_parser2 (argc, argv, args_info, 0, 1, 1);
}

int
cmdline_parser_ext (int argc, char **argv, struct gengetopt_args_info *args_info,
                   struct cmdline_parser_params *params)
{
  int result;
  result = cmdline_parser_internal (argc, argv, args_info, params, 0);

  if (result == EXIT_FAILURE)
    {
      cmdline_parser_free (args_info);
      exit (EXIT_FAILURE);
    }
  
  return result;
}

int
cmdline_parser2 (int argc, char **argv, struct gengetopt_args_info *args_info, int override, int initialize, int check_required)
{
  int result;
  struct cmdline_parser_params params;
  
  params.override = override;
  params.initialize = initialize;
  params.check_required = check_required;
  params.check_ambiguity = 0;
  params.print_errors = 1;

  result = cmdline_parser_internal (argc, argv, args_info, &params, 0);

  if (result == EXIT_FAILURE)
    {
      cmdline_parser_free (args_info);
      exit (EXIT_FAILURE);
    }
  
  return result;
}

int
cmdline_parser_required (struct gengetopt_args_info *args_info, const char *prog_name)
{
  int result = EXIT_SUCCESS;

  if (cmdline_parser_required2(args_info, prog_name, 0) > 0)
    result = EXIT_FAILURE;

  if (result == EXIT_FAILURE)
    {
      cmdline_parser_free (args_info);
      exit (EXIT_FAILURE);
    }
  
  return result;
}

int
cmdline_parser_required2 (struct gengetopt_args_info *args_info, const char *prog_name, const char *additional_error)
{
  int error = 0;
  FIX_UNUSED (additional_error);

  /* checks for required options */
  if (! args_info->output_given)
    {
      fprintf (stderr, "%s: '--output' ('-o') option required%s\n", prog_name, (additional_error ? additional_error : ""));
      error = 1;
    }
  
  
  /* checks for dependences among options */

  return error;
}


static char *package_name = 0;

/**
 * @brief updates an option
 * @param field the generic pointer to the field to update
 * @param orig_field the pointer to the orig field
 * @param field_given the pointer to the number of occurrence of this option
 * @param prev_given the pointer to the number of occurrence already seen
 * @param value the argument for this option (if null no arg was specified)
 * @param possible_values the possible values for this option (if specified)
 * @param default_value the default value (in case the option only accepts fixed values)
 * @param arg_type the type of this option
 * @param check_ambiguity @see cmdline_parser_params.check_ambiguity
 * @param override @see cmdline_parser_params.override
 * @param no_free whether to free a possible previous value
 * @param multiple_option whether this is a multiple option
 * @param long_opt the corresponding long option
 * @param short_opt the corresponding short option (or '-' if none)
 * @param additional_error possible further error specification
 */
static
int update_arg(void *field, char **orig_field,
               unsigned int *field_given, unsigned int *prev_given, 
               char *value, const char *possible_values[],
               const char *default_value,
               cmdline_parser_arg_type arg_type,
               int check_ambiguity, int override,
               int no_free, int multiple_option,
               const char *long_opt, char short_opt,
               const char *additional_error)
{
  char *stop_char = 0;
  const char *val = value;
  int found;
  char **string_field;
  FIX_UNUSED (field);

  stop_char = 0;
  found = 0;

  if (!multiple_option && prev_given && (*prev_given || (check_ambiguity && *field_given)))
    {
      if (short_opt != '-')
        fprintf (stderr, "%s: `--%s' (`-%c') option given more than once%s\n", 
               package_name, long_opt, short_opt,
               (additional_error ? additional_error : ""));
      else
        fprintf (stderr, "%s: `--%s' option given more than once%s\n", 
               package_name, long_opt,
               (additional_error ? additional_error : ""));
      return 1; /* failure */
    }

  FIX_UNUSED (default_value);
    
  if (field_given && *field_given && ! override)
    return 0;
  if (prev_given)
    (*prev_given)++;
  if (field_given)
    (*field_given)++;
  if (possible_values)
    val = possible_values[found];

  switch(arg_type) {
  case ARG_STRING:
    if (val) {
      string_field = (char **)field;
      if (!no_free && *string_field)
        free (*string_field); /* free previous string */
      *string_field = gengetopt_strdup (val);
    }
    break;
  default:
    break;
  };


  /* store the original value */
  switch(arg_type) {
  case ARG_NO:
    break;
  default:
    if (value && orig_field) {
      if (no_free) {
        *orig_field = value;
      } else {
        if (*orig_field)
          free (*orig_field); /* free previous string */
        *orig_field = gengetopt_strdup (value);
      }
    }
  };

  return 0; /* OK */
}


int
cmdline_parser_internal (
  int argc, char **argv, struct gengetopt_args_info *args_info,
                        struct cmdline_parser_params *params, const char *additional_error)
{
  int c;        /* Character of the parsed option.  */

  int error = 0;
  struct gengetopt_args_info local_args_info;
  
  int override;
  int initialize;
  int check_required;
  int check_ambiguity;
  
  package_name = argv[0];
  
  override = params->override;
  initialize = params->initialize;
  check_required = params->check_required;
  check_ambiguity = params->check_ambiguity;

  if (initialize)
    cmdline_parser_init (args_info);

  cmdline_parser_init (&local_args_info);

  optarg = 0;
  optind = 0;
  opterr = params->print_errors;
  optopt = '?';

  while (1)
    {
      int option_index = 0;

      static struct option long_options[] = {
        { "help",       0, NULL, 'h' },
        { "version",    0, NULL, 'V' },
        { "output",     1, NULL, 'o' },
        { 0,  0, 0, 0 }
      };

      c = getopt_long (argc, argv, "hVo:", long_options, &option_index);

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

      switch (c)
        {
        case 'h':       /* Print help and exit.  */
          cmdline_parser_print_help ();
          cmdline_parser_free (&local_args_info);
          exit (EXIT_SUCCESS);

        case 'V':       /* Print version and exit.  */
          cmdline_parser_print_version ();
          cmdline_parser_free (&local_args_info);
          exit (EXIT_SUCCESS);

        case 'o':       /* Output file name.  */
        
        
          if (update_arg( (void *)&(args_info->output_arg), 
               &(args_info->output_orig), &(args_info->output_given),
              &(local_args_info.output_given), optarg, 0, 0, ARG_STRING,
              check_ambiguity, override, 0, 0,
              "output", 'o',
              additional_error))
            goto failure;
        
          break;

        case 0: /* Long option with no short option */
        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", CMDLINE_PARSER_PACKAGE, c, (additional_error ? additional_error : ""));
          abort ();
        } /* switch */
    } /* while */


  if (check_required)
    {
      error += cmdline_parser_required2 (args_info, argv[0], additional_error);
    }

  cmdline_parser_release (&local_args_info);

  if ( error )
    return (EXIT_FAILURE);

  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) */

      i = optind;
      while (i < argc)
        if (argv[i++] == argv[0]) {
          found_prog_name = 1;
          break;
        }
      i = 0;

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

  return 0;

failure:
  
  cmdline_parser_release (&local_args_info);
  return (EXIT_FAILURE);
}
Revision:	1857
Committed:	Wed Apr 3 18:27:48 2013 UTC (12 years, 1 month ago) by kstocke1
File size:	14015 byte(s)
Log Message:	Added utility to recenter a simulation on the center of mass
#	User	Rev	Content
1	kstocke1	1857	/*
2			File autogenerated by gengetopt version 2.22.4
3			generated with the following command:
4			gengetopt --file-name recenterCmd --unamed-opts
5
6			The developers of gengetopt consider the fixed text that goes in all
7			gengetopt output files to be in the public domain:
8			we make no copyright claims on it.
9			*/
10
11			/* If we use autoconf. */
12			#ifdef HAVE_CONFIG_H
13			#include "config.h"
14			#endif
15
16			#include <stdio.h>
17			#include <stdlib.h>
18			#include <string.h>
19
20			#ifndef FIX_UNUSED
21			#define FIX_UNUSED(X) (void) (X) /* avoid warnings for unused params */
22			#endif
23
24			#include <getopt.h>
25
26			#include "recenterCmd.h"
27
28			const char *gengetopt_args_info_purpose = "Moves all integrable objects in an OpenMD file so that the center of mass is at \nthe origin.";
29
30			const char *gengetopt_args_info_usage = "Usage: recenter [OPTIONS]... [FILES]...";
31
32			const char *gengetopt_args_info_description = "";
33
34			const char *gengetopt_args_info_help[] = {
35			" -h, --help Print help and exit",
36			" -V, --version Print version and exit",
37			" -o, --output=STRING Output file name",
38			0
39			};
40
41			typedef enum {ARG_NO
42			, ARG_STRING
43			} cmdline_parser_arg_type;
44
45			static
46			void clear_given (struct gengetopt_args_info *args_info);
47			static
48			void clear_args (struct gengetopt_args_info *args_info);
49
50			static int
51			cmdline_parser_internal (int argc, char *argv, struct gengetopt_args_info args_info,
52			struct cmdline_parser_params params, const char additional_error);
53
54			static int
55			cmdline_parser_required2 (struct gengetopt_args_info args_info, const char prog_name, const char *additional_error);
56
57			static char *
58			gengetopt_strdup (const char *s);
59
60			static
61			void clear_given (struct gengetopt_args_info *args_info)
62			{
63			args_info->help_given = 0 ;
64			args_info->version_given = 0 ;
65			args_info->output_given = 0 ;
66			}
67
68			static
69			void clear_args (struct gengetopt_args_info *args_info)
70			{
71			FIX_UNUSED (args_info);
72			args_info->output_arg = NULL;
73			args_info->output_orig = NULL;
74
75			}
76
77			static
78			void init_args_info(struct gengetopt_args_info *args_info)
79			{
80
81
82			args_info->help_help = gengetopt_args_info_help[0] ;
83			args_info->version_help = gengetopt_args_info_help[1] ;
84			args_info->output_help = gengetopt_args_info_help[2] ;
85
86			}
87
88			void
89			cmdline_parser_print_version (void)
90			{
91			printf ("%s %s\n",
92			(strlen(CMDLINE_PARSER_PACKAGE_NAME) ? CMDLINE_PARSER_PACKAGE_NAME : CMDLINE_PARSER_PACKAGE),
93			CMDLINE_PARSER_VERSION);
94			}
95
96			static void print_help_common(void) {
97			cmdline_parser_print_version ();
98
99			if (strlen(gengetopt_args_info_purpose) > 0)
100			printf("\n%s\n", gengetopt_args_info_purpose);
101
102			if (strlen(gengetopt_args_info_usage) > 0)
103			printf("\n%s\n", gengetopt_args_info_usage);
104
105			printf("\n");
106
107			if (strlen(gengetopt_args_info_description) > 0)
108			printf("%s\n\n", gengetopt_args_info_description);
109			}
110
111			void
112			cmdline_parser_print_help (void)
113			{
114			int i = 0;
115			print_help_common();
116			while (gengetopt_args_info_help[i])
117			printf("%s\n", gengetopt_args_info_help[i++]);
118			}
119
120			void
121			cmdline_parser_init (struct gengetopt_args_info *args_info)
122			{
123			clear_given (args_info);
124			clear_args (args_info);
125			init_args_info (args_info);
126
127			args_info->inputs = 0;
128			args_info->inputs_num = 0;
129			}
130
131			void
132			cmdline_parser_params_init(struct cmdline_parser_params *params)
133			{
134			if (params)
135			{
136			params->override = 0;
137			params->initialize = 1;
138			params->check_required = 1;
139			params->check_ambiguity = 0;
140			params->print_errors = 1;
141			}
142			}
143
144			struct cmdline_parser_params *
145			cmdline_parser_params_create(void)
146			{
147			struct cmdline_parser_params *params =
148			(struct cmdline_parser_params *)malloc(sizeof(struct cmdline_parser_params));
149			cmdline_parser_params_init(params);
150			return params;
151			}
152
153			static void
154			free_string_field (char **s)
155			{
156			if (*s)
157			{
158			free (*s);
159			*s = 0;
160			}
161			}
162
163
164			static void
165			cmdline_parser_release (struct gengetopt_args_info *args_info)
166			{
167			unsigned int i;
168			free_string_field (&(args_info->output_arg));
169			free_string_field (&(args_info->output_orig));
170
171
172			for (i = 0; i < args_info->inputs_num; ++i)
173			free (args_info->inputs [i]);
174
175			if (args_info->inputs_num)
176			free (args_info->inputs);
177
178			clear_given (args_info);
179			}
180
181
182			static void
183			write_into_file(FILE outfile, const char opt, const char arg, const char values[])
184			{
185			FIX_UNUSED (values);
186			if (arg) {
187			fprintf(outfile, "%s=\"%s\"\n", opt, arg);
188			} else {
189			fprintf(outfile, "%s\n", opt);
190			}
191			}
192
193
194			int
195			cmdline_parser_dump(FILE outfile, struct gengetopt_args_info args_info)
196			{
197			int i = 0;
198
199			if (!outfile)
200			{
201			fprintf (stderr, "%s: cannot dump options to stream\n", CMDLINE_PARSER_PACKAGE);
202			return EXIT_FAILURE;
203			}
204
205			if (args_info->help_given)
206			write_into_file(outfile, "help", 0, 0 );
207			if (args_info->version_given)
208			write_into_file(outfile, "version", 0, 0 );
209			if (args_info->output_given)
210			write_into_file(outfile, "output", args_info->output_orig, 0);
211
212
213			i = EXIT_SUCCESS;
214			return i;
215			}
216
217			int
218			cmdline_parser_file_save(const char filename, struct gengetopt_args_info args_info)
219			{
220			FILE *outfile;
221			int i = 0;
222
223			outfile = fopen(filename, "w");
224
225			if (!outfile)
226			{
227			fprintf (stderr, "%s: cannot open file for writing: %s\n", CMDLINE_PARSER_PACKAGE, filename);
228			return EXIT_FAILURE;
229			}
230
231			i = cmdline_parser_dump(outfile, args_info);
232			fclose (outfile);
233
234			return i;
235			}
236
237			void
238			cmdline_parser_free (struct gengetopt_args_info *args_info)
239			{
240			cmdline_parser_release (args_info);
241			}
242
243			/** @brief replacement of strdup, which is not standard */
244			char *
245			gengetopt_strdup (const char *s)
246			{
247			char *result = 0;
248			if (!s)
249			return result;
250
251			result = (char*)malloc(strlen(s) + 1);
252			if (result == (char*)0)
253			return (char*)0;
254			strcpy(result, s);
255			return result;
256			}
257
258			int
259			cmdline_parser (int argc, char *argv, struct gengetopt_args_info args_info)
260			{
261			return cmdline_parser2 (argc, argv, args_info, 0, 1, 1);
262			}
263
264			int
265			cmdline_parser_ext (int argc, char *argv, struct gengetopt_args_info args_info,
266			struct cmdline_parser_params *params)
267			{
268			int result;
269			result = cmdline_parser_internal (argc, argv, args_info, params, 0);
270
271			if (result == EXIT_FAILURE)
272			{
273			cmdline_parser_free (args_info);
274			exit (EXIT_FAILURE);
275			}
276
277			return result;
278			}
279
280			int
281			cmdline_parser2 (int argc, char *argv, struct gengetopt_args_info args_info, int override, int initialize, int check_required)
282			{
283			int result;
284			struct cmdline_parser_params params;
285
286			params.override = override;
287			params.initialize = initialize;
288			params.check_required = check_required;
289			params.check_ambiguity = 0;
290			params.print_errors = 1;
291
292			result = cmdline_parser_internal (argc, argv, args_info, &params, 0);
293
294			if (result == EXIT_FAILURE)
295			{
296			cmdline_parser_free (args_info);
297			exit (EXIT_FAILURE);
298			}
299
300			return result;
301			}
302
303			int
304			cmdline_parser_required (struct gengetopt_args_info args_info, const char prog_name)
305			{
306			int result = EXIT_SUCCESS;
307
308			if (cmdline_parser_required2(args_info, prog_name, 0) > 0)
309			result = EXIT_FAILURE;
310
311			if (result == EXIT_FAILURE)
312			{
313			cmdline_parser_free (args_info);
314			exit (EXIT_FAILURE);
315			}
316
317			return result;
318			}
319
320			int
321			cmdline_parser_required2 (struct gengetopt_args_info args_info, const char prog_name, const char *additional_error)
322			{
323			int error = 0;
324			FIX_UNUSED (additional_error);
325
326			/* checks for required options */
327			if (! args_info->output_given)
328			{
329			fprintf (stderr, "%s: '--output' ('-o') option required%s\n", prog_name, (additional_error ? additional_error : ""));
330			error = 1;
331			}
332
333
334			/* checks for dependences among options */
335
336			return error;
337			}
338
339
340			static char *package_name = 0;
341
342			/**
343			* @brief updates an option
344			* @param field the generic pointer to the field to update
345			* @param orig_field the pointer to the orig field
346			* @param field_given the pointer to the number of occurrence of this option
347			* @param prev_given the pointer to the number of occurrence already seen
348			* @param value the argument for this option (if null no arg was specified)
349			* @param possible_values the possible values for this option (if specified)
350			* @param default_value the default value (in case the option only accepts fixed values)
351			* @param arg_type the type of this option
352			* @param check_ambiguity @see cmdline_parser_params.check_ambiguity
353			* @param override @see cmdline_parser_params.override
354			* @param no_free whether to free a possible previous value
355			* @param multiple_option whether this is a multiple option
356			* @param long_opt the corresponding long option
357			* @param short_opt the corresponding short option (or '-' if none)
358			* @param additional_error possible further error specification
359			*/
360			static
361			int update_arg(void field, char *orig_field,
362			unsigned int field_given, unsigned int prev_given,
363			char value, const char possible_values[],
364			const char *default_value,
365			cmdline_parser_arg_type arg_type,
366			int check_ambiguity, int override,
367			int no_free, int multiple_option,
368			const char *long_opt, char short_opt,
369			const char *additional_error)
370			{
371			char *stop_char = 0;
372			const char *val = value;
373			int found;
374			char **string_field;
375			FIX_UNUSED (field);
376
377			stop_char = 0;
378			found = 0;
379
380			if (!multiple_option && prev_given && (prev_given \|\| (check_ambiguity && field_given)))
381			{
382			if (short_opt != '-')
383			fprintf (stderr, "%s: `--%s' (`-%c') option given more than once%s\n",
384			package_name, long_opt, short_opt,
385			(additional_error ? additional_error : ""));
386			else
387			fprintf (stderr, "%s: `--%s' option given more than once%s\n",
388			package_name, long_opt,
389			(additional_error ? additional_error : ""));
390			return 1; /* failure */
391			}
392
393			FIX_UNUSED (default_value);
394
395			if (field_given && *field_given && ! override)
396			return 0;
397			if (prev_given)
398			(*prev_given)++;
399			if (field_given)
400			(*field_given)++;
401			if (possible_values)
402			val = possible_values[found];
403
404			switch(arg_type) {
405			case ARG_STRING:
406			if (val) {
407			string_field = (char **)field;
408			if (!no_free && *string_field)
409			free (string_field); / free previous string */
410			*string_field = gengetopt_strdup (val);
411			}
412			break;
413			default:
414			break;
415			};
416
417
418			/* store the original value */
419			switch(arg_type) {
420			case ARG_NO:
421			break;
422			default:
423			if (value && orig_field) {
424			if (no_free) {
425			*orig_field = value;
426			} else {
427			if (*orig_field)
428			free (orig_field); / free previous string */
429			*orig_field = gengetopt_strdup (value);
430			}
431			}
432			};
433
434			return 0; /* OK */
435			}
436
437
438			int
439			cmdline_parser_internal (
440			int argc, char *argv, struct gengetopt_args_info args_info,
441			struct cmdline_parser_params params, const char additional_error)
442			{
443			int c; /* Character of the parsed option. */
444
445			int error = 0;
446			struct gengetopt_args_info local_args_info;
447
448			int override;
449			int initialize;
450			int check_required;
451			int check_ambiguity;
452
453			package_name = argv[0];
454
455			override = params->override;
456			initialize = params->initialize;
457			check_required = params->check_required;
458			check_ambiguity = params->check_ambiguity;
459
460			if (initialize)
461			cmdline_parser_init (args_info);
462
463			cmdline_parser_init (&local_args_info);
464
465			optarg = 0;
466			optind = 0;
467			opterr = params->print_errors;
468			optopt = '?';
469
470			while (1)
471			{
472			int option_index = 0;
473
474			static struct option long_options[] = {
475			{ "help", 0, NULL, 'h' },
476			{ "version", 0, NULL, 'V' },
477			{ "output", 1, NULL, 'o' },
478			{ 0, 0, 0, 0 }
479			};
480
481			c = getopt_long (argc, argv, "hVo:", long_options, &option_index);
482
483			if (c == -1) break; /* Exit from `while (1)' loop. */
484
485			switch (c)
486			{
487			case 'h': /* Print help and exit. */
488			cmdline_parser_print_help ();
489			cmdline_parser_free (&local_args_info);
490			exit (EXIT_SUCCESS);
491
492			case 'V': /* Print version and exit. */
493			cmdline_parser_print_version ();
494			cmdline_parser_free (&local_args_info);
495			exit (EXIT_SUCCESS);
496
497			case 'o': /* Output file name. */
498
499
500			if (update_arg( (void *)&(args_info->output_arg),
501			&(args_info->output_orig), &(args_info->output_given),
502			&(local_args_info.output_given), optarg, 0, 0, ARG_STRING,
503			check_ambiguity, override, 0, 0,
504			"output", 'o',
505			additional_error))
506			goto failure;
507
508			break;
509
510			case 0: /* Long option with no short option */
511			case '?': /* Invalid option. */
512			/* `getopt_long' already printed an error message. */
513			goto failure;
514
515			default: /* bug: option not considered. */
516			fprintf (stderr, "%s: option unknown: %c%s\n", CMDLINE_PARSER_PACKAGE, c, (additional_error ? additional_error : ""));
517			abort ();
518			} /* switch */
519			} /* while */
520
521
522
523			if (check_required)
524			{
525			error += cmdline_parser_required2 (args_info, argv[0], additional_error);
526			}
527
528			cmdline_parser_release (&local_args_info);
529
530			if ( error )
531			return (EXIT_FAILURE);
532
533			if (optind < argc)
534			{
535			int i = 0 ;
536			int found_prog_name = 0;
537			/* whether program name, i.e., argv[0], is in the remaining args
538			(this may happen with some implementations of getopt,
539			but surely not with the one included by gengetopt) */
540
541			i = optind;
542			while (i < argc)
543			if (argv[i++] == argv[0]) {
544			found_prog_name = 1;
545			break;
546			}
547			i = 0;
548
549			args_info->inputs_num = argc - optind - found_prog_name;
550			args_info->inputs =
551			(char *)(malloc ((args_info->inputs_num)sizeof(char *))) ;
552			while (optind < argc)
553			if (argv[optind++] != argv[0])
554			args_info->inputs[ i++ ] = gengetopt_strdup (argv[optind-1]) ;
555			}
556
557			return 0;
558
559			failure:
560
561			cmdline_parser_release (&local_args_info);
562			return (EXIT_FAILURE);
563			}